The extended N2 method was applied to analyze two reinforced concrete buildings with asymmetric setbacks. The extended N2 method accounts for higher mode effects by combining results from a pushover analysis and an elastic modal analysis. It was applied to a 5-story and 9-story building. For the 5-story building, the extended N2 method provided results close to the displacement coefficient method in FEMA 356. Correction factors from the modal analysis were less than 1, so the basic N2 method results were used. This shows the extended N2 method can accurately analyze buildings with vertical irregularities like asymmetric setbacks.
Diagrammes d'interraction M-N Selon l'Eurocode 2Quang Huy Nguyen
Il s'agit des abaques des courbes d'interaction Moment fléchissant - effort axial permettant de dimensionner et/ou vérifier des éléments BA (poteaux) en flexion composée. Ces diagrammes sont établis conformément à l'Eurocode 2 et exprimés en moment réduit et effort normal réduit. Ils sont utilisables pour les sections rectangulaires et circulaires armées symétriques.
Finite Element analysis of a hybrid RCS beam-column connectionQuang Huy Nguyen
A new type of exterior RCS connection, in which a steel prole totally embedded inside RC
column is directly welded to the steel beam, is recently proposed within European RCFS
project SMARTCOCO. This kind of joint detail is not covered by the existing design
guidelines. Indeed, Eurocodes 2, 3 and 4 give some provisions that can partly be used for
the design of such a joint. There remains however a real lack of knowledge relatively to the
issue of the force transmission from the embedded steel prole to the surrounding concrete
of the column. Questions that can rise when designing such a connection are about the
optimal anchorage length to embed the steel prole or about the design of reinforcements
in the connection zone of the RC column and in the transition zone at each end of the
embedded steel prole. Based on Eurocodes and existing research works in the literature,
a design method is proposed within European RCFS project SMARTCOCO. However,
experimental tests and numerical simulations need to be conducted to valid this method.
This paper deals with nonlinear nite element model for this type of exterior RCS beamcolumn
connection. The material nonlinearities of concrete, steel beam, stud and rebar
are included in the nite element model. Four RCS joints with dierent anchorage lengths
and concrete classes are modeled. The failure modes and loads are analyzed and compared
to the predicted ones of the design model.
This publication provides a concise compilation of selected rules in the Eurocode 8, together with relevant Cyprus National Annex, that relate to the design of common forms of concrete building structure in the South Europe. Rules from EN 1998-1-1 for global analysis, regularity criteria, type of analysis and verification checks are presented. Detail design rules for concrete beam, column and shear wall, from EN 1998-1-1 and EN1992-1-1 are presented. This guide covers the design of orthodox members in concrete frames. It does not cover design rules for steel frames. Certain practical limitations are given to the scope.
Analyse élastique linéaire avec redistribution selon eurocode 2Quang Huy Nguyen
Cette note est une interprétation de l'article §5.5(4) de l'Eurocode 2 concernant l'analyse élastique-linéaire avec redistribution limitée des moments fléchissants. Elle permet d'appliquer l'article §5.5(4) de manière plus explicite.
Diagrammes d'interraction M-N Selon l'Eurocode 2Quang Huy Nguyen
Il s'agit des abaques des courbes d'interaction Moment fléchissant - effort axial permettant de dimensionner et/ou vérifier des éléments BA (poteaux) en flexion composée. Ces diagrammes sont établis conformément à l'Eurocode 2 et exprimés en moment réduit et effort normal réduit. Ils sont utilisables pour les sections rectangulaires et circulaires armées symétriques.
Finite Element analysis of a hybrid RCS beam-column connectionQuang Huy Nguyen
A new type of exterior RCS connection, in which a steel prole totally embedded inside RC
column is directly welded to the steel beam, is recently proposed within European RCFS
project SMARTCOCO. This kind of joint detail is not covered by the existing design
guidelines. Indeed, Eurocodes 2, 3 and 4 give some provisions that can partly be used for
the design of such a joint. There remains however a real lack of knowledge relatively to the
issue of the force transmission from the embedded steel prole to the surrounding concrete
of the column. Questions that can rise when designing such a connection are about the
optimal anchorage length to embed the steel prole or about the design of reinforcements
in the connection zone of the RC column and in the transition zone at each end of the
embedded steel prole. Based on Eurocodes and existing research works in the literature,
a design method is proposed within European RCFS project SMARTCOCO. However,
experimental tests and numerical simulations need to be conducted to valid this method.
This paper deals with nonlinear nite element model for this type of exterior RCS beamcolumn
connection. The material nonlinearities of concrete, steel beam, stud and rebar
are included in the nite element model. Four RCS joints with dierent anchorage lengths
and concrete classes are modeled. The failure modes and loads are analyzed and compared
to the predicted ones of the design model.
This publication provides a concise compilation of selected rules in the Eurocode 8, together with relevant Cyprus National Annex, that relate to the design of common forms of concrete building structure in the South Europe. Rules from EN 1998-1-1 for global analysis, regularity criteria, type of analysis and verification checks are presented. Detail design rules for concrete beam, column and shear wall, from EN 1998-1-1 and EN1992-1-1 are presented. This guide covers the design of orthodox members in concrete frames. It does not cover design rules for steel frames. Certain practical limitations are given to the scope.
Analyse élastique linéaire avec redistribution selon eurocode 2Quang Huy Nguyen
Cette note est une interprétation de l'article §5.5(4) de l'Eurocode 2 concernant l'analyse élastique-linéaire avec redistribution limitée des moments fléchissants. Elle permet d'appliquer l'article §5.5(4) de manière plus explicite.
This presentation is intended for year-2 BEng/MEng Civil and Structural Engineering Students. The main purpose is to present how characterise wind loading on simple building structures according to Eurocode 1
Abstract (Dutch)
Samengestelde betonnen liggers vervaardigd van prefab voorgespannen- en/of gewapende elementen zijn zeer populair in de huidige praktijk van de civiele techniek. Twee betonnen, samengestelde delen van de ligger worden gestort op verschillende tijdstippen. Verschillende elasticiteitsmoduli, opeenvolgende belastingaanbrenging, en verschillend krimp en kruip veroorzaken een herverdeling van de normaalspanning en ongelijke rekken en spanningen in twee aansluitende vezels in het aansluitvlak.
Dit seminar richt zich op de berekening volgens de EN 1992-1-1 en EN 1992-2. De aannames met betrekking tot de berekening en de controle van de gewapende en/of voorgespannen samengestelde liggers en doorsnedes zal worden toegelicht.
Ook wordt er ingegaan op:
• De spanning/rek respons van de doorsnede belast door normaalkracht en buigende momenten,
• De principes van het gebruik van de “initiële toestand” in berekeningen van de uiterste grenstoestand en de bruikbaarheidsgrenstoestand,
• De controle van dwarskracht en wringing,
• De interactie tussen alle snedekrachten,
• De principes van de controles van de spanningbeperking,
• De achtergrond van de scheurwijdtecontrole
Speciale aandacht zal er worden gegeven aan de berekening van de schuifspanning in het aansluitvlak, en de beschouwing van de invloed van de verschillende leeftijd van de betonnen delen met betrekking tot de schuifspanningen. Een alternatieve berekeningsmethode ten opzichte van de Eurocode 2 zal worden voorgesteld en worden getest.
De praktische voorbeelden volgens de Eurocode 2 zullen worden uitgevoerd met behulp van de IDEA StatiCa software.
This document presents an example of analysis design of slab using ETABS. This example examines a simple single story building, which is regular in plan and elevation. It is examining and compares the calculated ultimate moment from ETABS with hand calculation. Moment coefficients were used to calculate the ultimate moment. However it is good practice that such hand analysis methods are used to verify the output of more sophisticated methods.
Also, this document contains simple procedure (step-by-step) of how to design solid slab according to Eurocode 2. The process of designing elements will not be revolutionised as a result of using Eurocode 2.
The aim of this manual is to give the design application of the basic requirements of EC8 for new concrete and steel buildings using ETABS. This book can be used by users of ETABS modeler. Is not cover all the steps that you have to carry during designing model using ETABS but is a good manual for those who using Eurocodes.
Progressive collapse is the result of a localized failure of one or two structural elements that lead to a steady progression of load transfer that exceeds the capacity of other surrounding elements, thus initiating the progression that leads to a total or partial collapse of the structure. The present study is to evaluate the behavior of G+8 reinforced concrete building subjected to potential collapse. The reinforced concrete structure is analyzed by Pushover Analysis using ETABS Software. It shows the maximum storey displacement and a maximum storey drift values of the components are studied. And the potential of the progressive collapse is determined.
This presentation is intended for year-2 BEng/MEng Civil and Structural Engineering Students. The main purpose is to present how characterise wind loading on simple building structures according to Eurocode 1
Abstract (Dutch)
Samengestelde betonnen liggers vervaardigd van prefab voorgespannen- en/of gewapende elementen zijn zeer populair in de huidige praktijk van de civiele techniek. Twee betonnen, samengestelde delen van de ligger worden gestort op verschillende tijdstippen. Verschillende elasticiteitsmoduli, opeenvolgende belastingaanbrenging, en verschillend krimp en kruip veroorzaken een herverdeling van de normaalspanning en ongelijke rekken en spanningen in twee aansluitende vezels in het aansluitvlak.
Dit seminar richt zich op de berekening volgens de EN 1992-1-1 en EN 1992-2. De aannames met betrekking tot de berekening en de controle van de gewapende en/of voorgespannen samengestelde liggers en doorsnedes zal worden toegelicht.
Ook wordt er ingegaan op:
• De spanning/rek respons van de doorsnede belast door normaalkracht en buigende momenten,
• De principes van het gebruik van de “initiële toestand” in berekeningen van de uiterste grenstoestand en de bruikbaarheidsgrenstoestand,
• De controle van dwarskracht en wringing,
• De interactie tussen alle snedekrachten,
• De principes van de controles van de spanningbeperking,
• De achtergrond van de scheurwijdtecontrole
Speciale aandacht zal er worden gegeven aan de berekening van de schuifspanning in het aansluitvlak, en de beschouwing van de invloed van de verschillende leeftijd van de betonnen delen met betrekking tot de schuifspanningen. Een alternatieve berekeningsmethode ten opzichte van de Eurocode 2 zal worden voorgesteld en worden getest.
De praktische voorbeelden volgens de Eurocode 2 zullen worden uitgevoerd met behulp van de IDEA StatiCa software.
This document presents an example of analysis design of slab using ETABS. This example examines a simple single story building, which is regular in plan and elevation. It is examining and compares the calculated ultimate moment from ETABS with hand calculation. Moment coefficients were used to calculate the ultimate moment. However it is good practice that such hand analysis methods are used to verify the output of more sophisticated methods.
Also, this document contains simple procedure (step-by-step) of how to design solid slab according to Eurocode 2. The process of designing elements will not be revolutionised as a result of using Eurocode 2.
The aim of this manual is to give the design application of the basic requirements of EC8 for new concrete and steel buildings using ETABS. This book can be used by users of ETABS modeler. Is not cover all the steps that you have to carry during designing model using ETABS but is a good manual for those who using Eurocodes.
Progressive collapse is the result of a localized failure of one or two structural elements that lead to a steady progression of load transfer that exceeds the capacity of other surrounding elements, thus initiating the progression that leads to a total or partial collapse of the structure. The present study is to evaluate the behavior of G+8 reinforced concrete building subjected to potential collapse. The reinforced concrete structure is analyzed by Pushover Analysis using ETABS Software. It shows the maximum storey displacement and a maximum storey drift values of the components are studied. And the potential of the progressive collapse is determined.
Effect of variation of plastic hinge length on the results of non linear anal...eSAT Journals
Abstract The nonlinear Static procedure also well known as pushover analysis is method where in monotonically increasing loads are applied to the structure till the structure is unable to resist any further load. It is a popular tool for seismic performance evaluation of existing and new structures. In literature lot of research has been carried out on conventional pushover analysis and after knowing deficiency efforts have been made to improve it. But actual test results to verify the analytically obtained pushover results are rarely available. It has been found that some amount of variation is always expected to exist in seismic demand prediction of pushover analysis. Initial study is carried out by considering user defined hinge properties and default hinge length. Attempt is being made to assess the variation of pushover analysis results by considering user defined hinge properties and various hinge length formulations available in literature and results compared with experimentally obtained results based on test carried out on a G+2 storied RCC framed structure. For the present study two geometric models viz bare frame and rigid frame model is considered and it is found that the results of pushover analysis are very sensitive to geometric model and hinge length adopted. Keywords: Pushover analysis, Base shear, Displacement, hinge length, moment curvature analysis
Assessing Uncertainty of Pushover Analysis to Geometric ModelingIDES Editor
Pushover Analysis a popular tool for seismic
performance evaluation of existing and new structures and is
nonlinear Static procedure where in monotonically increasing
loads are applied to the structure till the structure is unable
to resist the further load .During the analysis, whatever the
strength of concrete and steel is adopted for analysis of
structure may not be the same when real structure is
constructed and the pushover analysis results are very sensitive
to material model adopted, geometric model adopted, location
of plastic hinges and in general to procedure followed by the
analyzer. In this paper attempt has been made to assess
uncertainty in pushover analysis results by considering user
defined hinges and frame modeled as bare frame and frame
with slab modeled as rigid diaphragm and results compared
with experimental observations. Uncertain parameters
considered includes the strength of concrete, strength of steel
and cover to the reinforcement which are randomly generated
and incorporated into the analysis. The results are then
compared with experimental observations.
Spectrum-Compliant Accelerograms through Harmonic Wavelet TransformAlessandro Palmeri
This presentation has been delivered at the 11th International Conference on Computational Structures Technology in Dubrovnik (Croatia) on 7th September 2012, and shows how the harmonic wavelet transform can be effectively used: first, to adjust a recorded accelerogram to match a given elastic design spectrum; second, to generate a number of fully non-stationary samples with the same probabilistic features.
Descriptive study of pushover analysis in rcc structures of rigid jointYousuf Dinar
ABSTRACT: Structures in mega cities, are under serious threat because of faulty and unskilled design and construction of structures. Sometimes structure designers are more concerned in constructing different load resistant members without knowing its necessity and its performance in the structure. Different configuration of construction may also lead to significant variation in capacity of the same structure. Nonlinear static pushover analysis provides a better view on the performance of the structures during seismic events. This comprehensive research evaluates as well as compares the performances of bare, different infill percentage level, different configuration of soft storey and Shear wall consisting building structures with each other and later depending upon the findings, suggests from which level of performance shear wall should be preferred over the infill structure and will eventually help engineers to decide where generally the soft storey could be constructed in the structures. Above all a better of effects of pushover analysis could be summarized from the findings. Masonry walls are represented by equivalent strut according to pushover concerned codes. For different loading conditions, the performances of structures are evaluated with the help of performance point, base shear, top displacement, storey drift and stages of number of hinges form.
Performance based analysis of rc building consisting shear wall and varying i...Yousuf Dinar
Abstract:
Metropolitan cities are under severe threat because of inappropriate design and construction of structures. Faulty building designed without considering seismic consideration could be vulnerable to damage even under low levels of ground shaking from distant earthquake. So, structural engineers often are more concerned about the constructing Shear wall without knowing its performance with respect to infill percentage which may lead it to an over design state without knowing the demand. Nonlinear inelastic pushover analysis provides a better view about the behavior of the structures during seismic events. This study investigates as well as compares the performances of bare, different infill percentage level and two types of Shear wall consisting building structures and suggests from which level of performance shear wall should be preferred over the infill structure. To perform the finite element simulation ETABS 9.7.2 is used to get the output using pushover analysis. For different loading conditions, the performances of structures are evaluated with the help of base shear, deflection, storey drift, storey drift ratio and stages of number of hinges form and represented with discussion.
Pushover is a static-nonlinear analysis method where a structure is subjected to gravity loading and a monotonic displacement-controlled lateral load pattern which continuously increases through elastic and inelastic behavior until an ultimate condition is reached. Lateral load may represent the range of base shear induced by earthquake loading, and its configuration may be proportional to the distribution of mass along building height, mode shapes, or another practical means.
The static pushover analysis is becoming a popular tool for seismic performance evaluation of existing and new structures. The expectation is that the pushover analysis will provide adequate information on seismic demands imposed by the design ground motion on the structural system and its components. The purpose of the paper is to summarize the basic concepts on which the pushover analysis can be based, assess the accuracy of pushover predictions, identify conditions under which the pushover will provide adequate information and, perhaps more importantly, identify cases in which the pushover predictions will be inadequate or even misleading.
Abstract: In the recent years, natural disasters are recognized to be the cause of considerable human and socioeconomic losses, particularly in modern, infrastructure-dependent societies. For example, the 2011 earthquake and tsunami in Japan have been one of the most devastating disasters of the past decades. Likewise, the Katrina hurricane in the US east coast in 2005. In this context, the concepts of “structural robustness” and
“resilience of urban areas” and “resilient community”, have gathered the attention of researchers. On top of that, more recently, anti-fragile design came as an evolution of design for resilience (intended as the capacity to recover), or for robustness (a main dimension of resilience, intended as the ability of a structure to withstand events without being damaged to an extent disproportionate to the original cause). This study focuses on a modern approach in disaster resilience - including anti-fragile design and structural robustness - providing insight for a preliminary framework on important modelling aspects.
Keywords: resilience, robustness, antifragility, structural engineering, structural design, urban design.
Look also to: http://www.dcee2016.eu/
The Pushover Analysis from basics - Rahul LeslieRahul Leslie
Pushover analysis has been in the academic-research arena for quite long. The papers published in this field usually deals mostly with proposed improvements to the approach, expecting the reader to know the basics of the topic... while the common structural design practitioner, not knowing the basics, is left out from participating in those discussions. Here I’m making an effort to bridge that gap by explaining the Pushover analysis, from basics, in its simplicity.
A write up on this topic can be found at http://rahulleslie.blogspot.in/p/blog-page.html, though does not cover the full spectrum presented in this slide show.
Effect of soft storeys in earthquake resistant analysis of rc framed structureseSAT Journals
storey in which the stiffness is less than 70% of the storey above or less
than 80% of the combined stiffnesses of the three storeys above. It is the general practice in the multistoreyed buildings to
accommodate parking facilities for the vehicles of the occupants of the building. As we know that the soft storey in a building
structure causes stiffness irregularity in a structure, due to this the structure undergoes unequal storey drifts, formation of the
plastic hinges and then finally resulting into the collapse of the structure.This research work purely interacts with the effect of the
soft storeys in the analysis of RC framed structures as entitled above, and in this work the soft storeys positions has been provided
at different levels as shown in the analytical modelling. All the models are analyzed by using the ETABS software. The seismic
analysis performed consists of the Equivalent static analysis (ESA), response spectrum analysis (RSA), and the push over analysis
(PA). The seismic base shear forces, storey drifts, and the displacements has been compared with the three analysis methods as
listed above. With the aid of the push over analysis the values of the ductility and the response reduction factor have been
obtained. Apart from these, the performance point parameters such as spectral acceleration(Sa) , spectral displacement (Sd),
Base shear(V) and the roof displacement(D) has been also illustrated in this work and a detailed information of several stages of
the hinge formation (A,B,IO,LS,CP,C,D,E) has also been illustrated.. Keywords: Soft Storey, Stiffness, Storey Drift, Storey Displacement, Earthquake, RC Frames
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
International Refereed Journal of Engineering and Science (IRJES)irjes
International Refereed Journal of Engineering and Science (IRJES) is a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications
A performance-based Analysis is aimed at controlling the structural damage based on precise estimations of proper response parameters. Performance-based seismic design explicitly evaluates how a building is likely to perform; given the potential hazard it is likely to experience, considering uncertainties inherent in the quantification of potential hazard and uncertainties in assessment of the actual building response. It is an iterative process that begins with the selection of performance objectives, followed by the development of a preliminary design, an assessment as to whether or not the design meets the performance objectives, and finally redesign and reassessment, if required, until the desired performance level is achieved. In this present study three new R.C.C buildings unsymmetrical in plan (L-shape) (designed according to IS 456:2000) is taken for analysis: 4, 8 and 20 storey to cover the broader spectrum of low rise, medium rise & high rise building construction. Different modelling issues were incorporated through six model for each building were; bare frame (without infill), having infill as membrane, replacing infill as an equivalent strut in previous model. The pushover analysis has been carried out using ETABS, a product of Computers and Structures International. Buildings located in Zone-III have been analyzed Comparative study made for bare frame (without infill), having infill as membrane, replacing infill as an equivalent strut. The results of analysis are compared in terms of Base Shear, Storey Displacement and Drift Ratio.
Performance Based Evaluation of Shear Walled RCC Building by Pushover AnalysisIJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
Analysis of Multi Storey Building using Structural Software MIDAS Generalijtsrd
Earthquakes are known to produce one of the most destructive forces on earth. It has been seen that during past earthquakes many of the buildings were collapsed. Therefore, realistic method for analysis and design are required. Performance Based Design is the modern approach for earthquake resistant design. It is an attempt to predict the performance of buildings under expected seismic event. A structure designed with Performance Based Design PBD concept does not developed undesirable failure mechanism during earthquake. The analysis can be performed on new as well as existing buildings and the performance of buildings in future earthquake can be evaluated. In this research we apply different type type of analysis method on the 30 storey building plan and compare the result. Priyank H. Patel | Jenish M. Mistry | Vishal N. Patel "Analysis of Multi- Storey Building using Structural Software MIDAS General" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd30961.pdf Paper Url :https://www.ijtsrd.com/engineering/civil-engineering/30961/analysis-of-multi-storey-building-using-structural-software-midas-general/priyank-h-patel
Performance of Flat Slab Structure Using Pushover AnalysisIOSR Journals
Performance Based Seismic Engineering is the modern approach to earthquake resistant design. It
is a limit-state based design approach extended to cover complex range of issues faced by structural engineers.
Flat slabs are becoming popular and gaining importance as they are economical as compared to beam-column
connections in conventional slab. Many existing flat slabs may not have been designed for seismic forces so it is
important to study their response under seismic conditions and to evaluate seismic retrofit schemes. In this
paper we have discussed the results obtained by performing push over analysis on flat slabs by using most
common software SAP2000. A (G+7) frame having 5 bays is considered for analysis. It is observed that the
performance point of flat slab is more as compared to conventional building.
Analytical Study of Response of Multi-Storey Building under Biaxial Excitation IJERA Editor
Conventional practice of dynamic analysis using seismic codes recommends that the dynamic analysis is done by
considering earthquake force in one direction at a time i.e. uniaxial excitation. But the simultaneous effect of
asymmetricities in both orthogonal directions is neglected because of uniaxial excitation approach. Also the
behaviour of building during earthquake depends upon its shape size and overall geometry. The partial and
complete collapse of reinforced concrete buildings in recent earthquakes has raised the need to design the
building considering biaxial forces. Limited research has been carried out on effect of such biaxial excitation.
To get reliable results a regular and C shape model of multi-storey building is analysed using various timehistories
in SAP2000 v17. The angle of incidence of earthquake forces will be varying between 0 to 360 degrees.
The influence of the orthogonal horizontal component of input ground motion on seismic response of reinforced
concrete building is analysed by comparing the response of biaxial excitation with the response of uniaxial
excitation.
Change in maximum displacement values, considering this as the basic criteria, comparison of the responses due
biaxial excitation and uniaxial excitation is done. Time history analysis has been carried out using SAP2000
after validating the model with results available in reference literature.
It is observed and recommended that considering biaxial forces is necessary for an accurate determination of
response and also to reach an adequate design for serviceability earthquakes.
Submission Deadline: 30th September 2022
Acceptance Notification: Within Three Days’ time period
Online Publication: Within 24 Hrs. time Period
Expected Date of Dispatch of Printed Journal: 5th October 2022
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...IAEME Publication
White layer thickness (WLT) formed and surface roughness in wire electric discharge turning (WEDT) of tungsten carbide composite has been made to model through response surface methodology (RSM). A Taguchi’s standard Design of experiments involving five input variables with three levels has been employed to establish a mathematical model between input parameters and responses. Percentage of cobalt content, spindle speed, Pulse on-time, wire feed and pulse off-time were changed during the experimental tests based on the Taguchi’s orthogonal array L27 (3^13). Analysis of variance (ANOVA) revealed that the mathematical models obtained can adequately describe performance within the parameters of the factors considered. There was a good agreement between the experimental and predicted values in this study.
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURSIAEME Publication
The study explores the reasons for a transgender to become entrepreneurs. In this study transgender entrepreneur was taken as independent variable and reasons to become as dependent variable. Data were collected through a structured questionnaire containing a five point Likert Scale. The study examined the data of 30 transgender entrepreneurs in Salem Municipal Corporation of Tamil Nadu State, India. Simple Random sampling technique was used. Garrett Ranking Technique (Percentile Position, Mean Scores) was used as the analysis for the present study to identify the top 13 stimulus factors for establishment of trans entrepreneurial venture. Economic advancement of a nation is governed upon the upshot of a resolute entrepreneurial doings. The conception of entrepreneurship has stretched and materialized to the socially deflated uncharted sections of transgender community. Presently transgenders have smashed their stereotypes and are making recent headlines of achievements in various fields of our Indian society. The trans-community is gradually being observed in a new light and has been trying to achieve prospective growth in entrepreneurship. The findings of the research revealed that the optimistic changes are taking place to change affirmative societal outlook of the transgender for entrepreneurial ventureship. It also laid emphasis on other transgenders to renovate their traditional living. The paper also highlights that legislators, supervisory body should endorse an impartial canons and reforms in Tamil Nadu Transgender Welfare Board Association.
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURSIAEME Publication
Since ages gender difference is always a debatable theme whether caused by nature, evolution or environment. The birth of a transgender is dreadful not only for the child but also for their parents. The pain of living in the wrong physique and treated as second class victimized citizen is outrageous and fully harboured with vicious baseless negative scruples. For so long, social exclusion had perpetuated inequality and deprivation experiencing ingrained malign stigma and besieged victims of crime or violence across their life spans. They are pushed into the murky way of life with a source of eternal disgust, bereft sexual potency and perennial fear. Although they are highly visible but very little is known about them. The common public needs to comprehend the ravaged arrogance on these insensitive souls and assist in integrating them into the mainstream by offering equal opportunity, treat with humanity and respect their dignity. Entrepreneurship in the current age is endorsing the gender fairness movement. Unstable careers and economic inadequacy had inclined one of the gender variant people called Transgender to become entrepreneurs. These tiny budding entrepreneurs resulted in economic transition by means of employment, free from the clutches of stereotype jobs, raised standard of living and handful of financial empowerment. Besides all these inhibitions, they were able to witness a platform for skill set development that ignited them to enter into entrepreneurial domain. This paper epitomizes skill sets involved in trans-entrepreneurs of Thoothukudi Municipal Corporation of Tamil Nadu State and is a groundbreaking determination to sightsee various skills incorporated and the impact on entrepreneurship.
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONSIAEME Publication
The banking and financial services industries are experiencing increased technology penetration. Among them, the banking industry has made technological advancements to better serve the general populace. The economy focused on transforming the banking sector's system into a cashless, paperless, and faceless one. The researcher wants to evaluate the user's intention for utilising a mobile banking application. The study also examines the variables affecting the user's behaviour intention when selecting specific applications for financial transactions. The researcher employed a well-structured questionnaire and a descriptive study methodology to gather the respondents' primary data utilising the snowball sampling technique. The study includes variables like performance expectations, effort expectations, social impact, enabling circumstances, and perceived risk. Each of the aforementioned variables has a major impact on how users utilise mobile banking applications. The outcome will assist the service provider in comprehending the user's history with mobile banking applications.
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONSIAEME Publication
Technology upgradation in banking sector took the economy to view that payment mode towards online transactions using mobile applications. This system enabled connectivity between banks, Merchant and user in a convenient mode. there are various applications used for online transactions such as Google pay, Paytm, freecharge, mobikiwi, oxygen, phonepe and so on and it also includes mobile banking applications. The study aimed at evaluating the predilection of the user in adopting digital transaction. The study is descriptive in nature. The researcher used random sample techniques to collect the data. The findings reveal that mobile applications differ with the quality of service rendered by Gpay and Phonepe. The researcher suggest the Phonepe application should focus on implementing the application should be user friendly interface and Gpay on motivating the users to feel the importance of request for money and modes of payments in the application.
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINOIAEME Publication
The prototype of a voice-based ATM for visually impaired using Arduino is to help people who are blind. This uses RFID cards which contain users fingerprint encrypted on it and interacts with the users through voice commands. ATM operates when sensor detects the presence of one person in the cabin. After scanning the RFID card, it will ask to select the mode like –normal or blind. User can select the respective mode through voice input, if blind mode is selected the balance check or cash withdraw can be done through voice input. Normal mode procedure is same as the existing ATM.
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...IAEME Publication
There is increasing acceptability of emotional intelligence as a major factor in personality assessment and effective human resource management. Emotional intelligence as the ability to build capacity, empathize, co-operate, motivate and develop others cannot be divorced from both effective performance and human resource management systems. The human person is crucial in defining organizational leadership and fortunes in terms of challenges and opportunities and walking across both multinational and bilateral relationships. The growing complexity of the business world requires a great deal of self-confidence, integrity, communication, conflict and diversity management to keep the global enterprise within the paths of productivity and sustainability. Using the exploratory research design and 255 participants the result of this original study indicates strong positive correlation between emotional intelligence and effective human resource management. The paper offers suggestions on further studies between emotional intelligence and human capital development and recommends for conflict management as an integral part of effective human resource management.
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMYIAEME Publication
Our life journey, in general, is closely defined by the way we understand the meaning of why we coexist and deal with its challenges. As we develop the "inspiration economy", we could say that nearly all of the challenges we have faced are opportunities that help us to discover the rest of our journey. In this note paper, we explore how being faced with the opportunity of being a close carer for an aging parent with dementia brought intangible discoveries that changed our insight of the meaning of the rest of our life journey.
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...IAEME Publication
The main objective of this study is to analyze the impact of aspects of Organizational Culture on the Effectiveness of the Performance Management System (PMS) in the Health Care Organization at Thanjavur. Organizational Culture and PMS play a crucial role in present-day organizations in achieving their objectives. PMS needs employees’ cooperation to achieve its intended objectives. Employees' cooperation depends upon the organization’s culture. The present study uses exploratory research to examine the relationship between the Organization's culture and the Effectiveness of the Performance Management System. The study uses a Structured Questionnaire to collect the primary data. For this study, Thirty-six non-clinical employees were selected from twelve randomly selected Health Care organizations at Thanjavur. Thirty-two fully completed questionnaires were received.
Living in 21st century in itself reminds all of us the necessity of police and its administration. As more and more we are entering into the modern society and culture, the more we require the services of the so called ‘Khaki Worthy’ men i.e., the police personnel. Whether we talk of Indian police or the other nation’s police, they all have the same recognition as they have in India. But as already mentioned, their services and requirements are different after the like 26th November, 2008 incidents, where they without saving their own lives has sacrificed themselves without any hitch and without caring about their respective family members and wards. In other words, they are like our heroes and mentors who can guide us from the darkness of fear, militancy, corruption and other dark sides of life and so on. Now the question arises, if Gandhi would have been alive today, what would have been his reaction/opinion to the police and its functioning? Would he have some thing different in his mind now what he had been in his mind before the partition or would he be going to start some Satyagraha in the form of some improvement in the functioning of the police administration? Really these questions or rather night mares can come to any one’s mind, when there is too much confusion is prevailing in our minds, when there is too much corruption in the society and when the polices working is also in the questioning because of one or the other case throughout the India. It is matter of great concern that we have to thing over our administration and our practical approach because the police personals are also like us, they are part and parcel of our society and among one of us, so why we all are pin pointing towards them.
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...IAEME Publication
The goal of this study was to see how talent management affected employee retention in the selected IT organizations in Chennai. The fundamental issue was the difficulty to attract, hire, and retain talented personnel who perform well and the gap between supply and demand of talent acquisition and retaining them within the firms. The study's main goals were to determine the impact of talent management on employee retention in IT companies in Chennai, investigate talent management strategies that IT companies could use to improve talent acquisition, performance management, career planning and formulate retention strategies that the IT firms could use. The respondents were given a structured close-ended questionnaire with the 5 Point Likert Scale as part of the study's quantitative research design. The target population consisted of 289 IT professionals. The questionnaires were distributed and collected by the researcher directly. The Statistical Package for Social Sciences (SPSS) was used to collect and analyse the questionnaire responses. Hypotheses that were formulated for the various areas of the study were tested using a variety of statistical tests. The key findings of the study suggested that talent management had an impact on employee retention. The studies also found that there is a clear link between the implementation of talent management and retention measures. Management should provide enough training and development for employees, clarify job responsibilities, provide adequate remuneration packages, and recognise employees for exceptional performance.
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...IAEME Publication
Globally, Millions of dollars were spent by the organizations for employing skilled Information Technology (IT) professionals. It is costly to replace unskilled employees with IT professionals possessing technical skills and competencies that aid in interconnecting the business processes. The organization’s employment tactics were forced to alter by globalization along with technological innovations as they consistently diminish to remain lean, outsource to concentrate on core competencies along with restructuring/reallocate personnel to gather efficiency. As other jobs, organizations or professions have become reasonably more appropriate in a shifting employment landscape, the above alterations trigger both involuntary as well as voluntary turnover. The employee view on jobs is also afflicted by the COVID-19 pandemic along with the employee-driven labour market. So, having effective strategies is necessary to tackle the withdrawal rate of employees. By associating Emotional Intelligence (EI) along with Talent Management (TM) in the IT industry, the rise in attrition rate was analyzed in this study. Only 303 respondents were collected out of 350 participants to whom questionnaires were distributed. From the employees of IT organizations located in Bangalore (India), the data were congregated. A simple random sampling methodology was employed to congregate data as of the respondents. Generating the hypothesis along with testing is eventuated. The effect of EI and TM along with regression analysis between TM and EI was analyzed. The outcomes indicated that employee and Organizational Performance (OP) were elevated by effective EI along with TM.
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...IAEME Publication
By implementing talent management strategy, organizations would have the option to retain their skilled professionals while additionally working on their overall performance. It is the course of appropriately utilizing the ideal individuals, setting them up for future top positions, exploring and dealing with their performance, and holding them back from leaving the organization. It is employee performance that determines the success of every organization. The firm quickly obtains an upper hand over its rivals in the event that its employees having particular skills that cannot be duplicated by the competitors. Thus, firms are centred on creating successful talent management practices and processes to deal with the unique human resources. Firms are additionally endeavouring to keep their top/key staff since on the off chance that they leave; the whole store of information leaves the firm's hands. The study's objective was to determine the impact of talent management on organizational performance among the selected IT organizations in Chennai. The study recommends that talent management limitedly affects performance. On the off chance that this talent is appropriately management and implemented properly, organizations might benefit as much as possible from their maintained assets to support development and productivity, both monetarily and non-monetarily.
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...IAEME Publication
Banking regulations act of India, 1949 defines banking as “acceptance of deposits for the purpose of lending or investment from the public, repayment on demand or otherwise and withdrawable through cheques, drafts order or otherwise”, the major participants of the Indian financial system are commercial banks, the financial institution encompassing term lending institutions. Investments institutions, specialized financial institution and the state level development banks, non banking financial companies (NBFC) and other market intermediaries such has the stock brokers and money lenders are among the oldest of the certain variants of NBFC and the oldest market participants. The asset quality of banks is one of the most important indicators of their financial health. The Indian banking sector has been facing severe problems of increasing Non- Performing Assets (NPAs). The NPAs growth directly and indirectly affects the quality of assets and profitability of banks. It also shows the efficiency of banks credit risk management and the recovery effectiveness. NPA do not generate any income, whereas, the bank is required to make provisions for such as assets that why is a double edge weapon. This paper outlines the concept of quality of bank loans of different types like Housing, Agriculture and MSME loans in state Haryana of selected public and private sector banks. This study is highlighting problems associated with the role of commercial bank in financing Small and Medium Scale Enterprises (SME). The overall objective of the research was to assess the effect of the financing provisions existing for the setting up and operations of MSMEs in the country and to generate recommendations for more robust financing mechanisms for successful operation of the MSMEs, in turn understanding the impact of MSME loans on financial institutions due to NPA. There are many research conducted on the topic of Non- Performing Assets (NPA) Management, concerning particular bank, comparative study of public and private banks etc. In this paper the researcher is considering the aggregate data of selected public sector and private sector banks and attempts to compare the NPA of Housing, Agriculture and MSME loans in state Haryana of public and private sector banks. The tools used in the study are average and Anova test and variance. The findings reveal that NPA is common problem for both public and private sector banks and is associated with all types of loans either that is housing loans, agriculture loans and loans to SMES. NPAs of both public and private sector banks show the increasing trend. In 2010-11 GNPA of public and private sector were at same level it was 2% but after 2010-11 it increased in many fold and at present there is GNPA in some more than 15%. It shows the dark area of Indian banking sector.
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...IAEME Publication
An experiment conducted in this study found that BaSO4 changed Nylon 6's mechanical properties. By changing the weight ratios, BaSO4 was used to make Nylon 6. This Researcher looked into how hard Nylon-6/BaSO4 composites are and how well they wear. Experiments were done based on Taguchi design L9. Nylon-6/BaSO4 composites can be tested for their hardness number using a Rockwell hardness testing apparatus. On Nylon/BaSO4, the wear behavior was measured by a wear monitor, pinon-disc friction by varying reinforcement, sliding speed, and sliding distance, and the microstructure of the crack surfaces was observed by SEM. This study provides significant contributions to ultimate strength by increasing BaSO4 content up to 16% in the composites, and sliding speed contributes 72.45% to the wear rate
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...IAEME Publication
The majority of the population in India lives in villages. The village is the back bone of the country. Village or rural industries play an important role in the national economy, particularly in the rural development. Developing the rural economy is one of the key indicators towards a country’s success. Whether it be the need to look after the welfare of the farmers or invest in rural infrastructure, Governments have to ensure that rural development isn’t compromised. The economic development of our country largely depends on the progress of rural areas and the standard of living of rural masses. Village or rural industries play an important role in the national economy, particularly in the rural development. Rural entrepreneurship is based on stimulating local entrepreneurial talent and the subsequent growth of indigenous enterprises. It recognizes opportunity in the rural areas and accelerates a unique blend of resources either inside or outside of agriculture. Rural entrepreneurship brings an economic value to the rural sector by creating new methods of production, new markets, new products and generate employment opportunities thereby ensuring continuous rural development. Social Entrepreneurship has the direct and primary objective of serving the society along with the earning profits. So, social entrepreneurship is different from the economic entrepreneurship as its basic objective is not to earn profits but for providing innovative solutions to meet the society needs which are not taken care by majority of the entrepreneurs as they are in the business for profit making as a sole objective. So, the Social Entrepreneurs have the huge growth potential particularly in the developing countries like India where we have huge societal disparities in terms of the financial positions of the population. Still 22 percent of the Indian population is below the poverty line and also there is disparity among the rural & urban population in terms of families living under BPL. 25.7 percent of the rural population & 13.7 percent of the urban population is under BPL which clearly shows the disparity of the poor people in the rural and urban areas. The need to develop social entrepreneurship in agriculture is dictated by a large number of social problems. Such problems include low living standards, unemployment, and social tension. The reasons that led to the emergence of the practice of social entrepreneurship are the above factors. The research problem lays upon disclosing the importance of role of social entrepreneurship in rural development of India. The paper the tendencies of social entrepreneurship in India, to present successful examples of such business for providing recommendations how to improve situation in rural areas in terms of social entrepreneurship development. Indian government has made some steps towards development of social enterprises, social entrepreneurship, and social in- novation, but a lot remains to be improved.
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...IAEME Publication
Distribution system is a critical link between the electric power distributor and the consumers. Most of the distribution networks commonly used by the electric utility is the radial distribution network. However in this type of network, it has technical issues such as enormous power losses which affect the quality of the supply. Nowadays, the introduction of Distributed Generation (DG) units in the system help improve and support the voltage profile of the network as well as the performance of the system components through power loss mitigation. In this study network reconfiguration was done using two meta-heuristic algorithms Particle Swarm Optimization and Gravitational Search Algorithm (PSO-GSA) to enhance power quality and voltage profile in the system when simultaneously applied with the DG units. Backward/Forward Sweep Method was used in the load flow analysis and simulated using the MATLAB program. Five cases were considered in the Reconfiguration based on the contribution of DG units. The proposed method was tested using IEEE 33 bus system. Based on the results, there was a voltage profile improvement in the system from 0.9038 p.u. to 0.9594 p.u.. The integration of DG in the network also reduced power losses from 210.98 kW to 69.3963 kW. Simulated results are drawn to show the performance of each case.
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...IAEME Publication
Manufacturing industries have witnessed an outburst in productivity. For productivity improvement manufacturing industries are taking various initiatives by using lean tools and techniques. However, in different manufacturing industries, frugal approach is applied in product design and services as a tool for improvement. Frugal approach contributed to prove less is more and seems indirectly contributing to improve productivity. Hence, there is need to understand status of frugal approach application in manufacturing industries. All manufacturing industries are trying hard and putting continuous efforts for competitive existence. For productivity improvements, manufacturing industries are coming up with different effective and efficient solutions in manufacturing processes and operations. To overcome current challenges, manufacturing industries have started using frugal approach in product design and services. For this study, methodology adopted with both primary and secondary sources of data. For primary source interview and observation technique is used and for secondary source review has done based on available literatures in website, printed magazines, manual etc. An attempt has made for understanding application of frugal approach with the study of manufacturing industry project. Manufacturing industry selected for this project study is Mahindra and Mahindra Ltd. This paper will help researcher to find the connections between the two concepts productivity improvement and frugal approach. This paper will help to understand significance of frugal approach for productivity improvement in manufacturing industry. This will also help to understand current scenario of frugal approach in manufacturing industry. In manufacturing industries various process are involved to deliver the final product. In the process of converting input in to output through manufacturing process productivity plays very critical role. Hence this study will help to evolve status of frugal approach in productivity improvement programme. The notion of frugal can be viewed as an approach towards productivity improvement in manufacturing industries.
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENTIAEME Publication
In this paper, we investigated a queuing model of fuzzy environment-based a multiple channel queuing model (M/M/C) ( /FCFS) and study its performance under realistic conditions. It applies a nonagonal fuzzy number to analyse the relevant performance of a multiple channel queuing model (M/M/C) ( /FCFS). Based on the sub interval average ranking method for nonagonal fuzzy number, we convert fuzzy number to crisp one. Numerical results reveal that the efficiency of this method. Intuitively, the fuzzy environment adapts well to a multiple channel queuing models (M/M/C) ( /FCFS) are very well.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
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static (pushover) analysis of a relatively simple multi degree-of- freedom (MDOF) mathematical model and the response
spectrum analysis of an equivalent single-degree-of-freedom (SDOF) model. This is termed as N2 method. They can be
used for a variety of purposes such as design verification for new buildings and bridges, damage assessment for existing
structures, determination of basic structural characteristics in direct displacement based design, and rapid evaluation of
global structural response to seismic ground motion of different intensities. In recent years, a breakthrough of these
procedures has been observed. They have been implemented into the modern guidelines and codes (Euro code 8
standard- Annex B of part 1).
The basic assumption used in pushover-based methods is that the structure vibrates predominantly in a single
mode. This assumption is not always fulfilled, especially in the case of high-risebuildings and/or torsionally flexible
plan-asymmetric buildings. A lot of work has been done worldwide to take into account the influence of higher modes in
elevation and in plan. Development of the extended N2 method is applicable to structures with important higher mode
effects and the basic idea was to keep the procedure as simple as possible. The higher mode problem was approached by
using correction factors based on the results of elastic modal analysis. The same idea can be used in any pushover-based
approach. In the current study, the extended N2 method which takes into account higher mode effects in elevation is
presented. First, the basic idea of N2 method is explained followed by extended N2 method. The computational
procedure is then summarized, and applied to two test building.
1.2: Need for the Study
N2 method is a simplified analysis procedure used for the seismic evaluation and design of structures. Recent
improvements of this procedure, like the extended N2 method, made the application of it to irregular structures possible.
Asymmetric setback is a common form of vertical irregularity found in multi-storeyed building frames. Application of
the Extended N2 method for such structures, if found successful, will reduce the computational efforts greatly, as
Nonlinear time history analysis is the current requirement for such structures as per different design codes.
2. THE PROPOSED APPROACH- EXTENDED N2 METHOD
The basic N2 method is, like other pushover-based methods, based on the assumption that the structure vibrates
predominantly in a single mode. If higher modes of vibration are important, either in plan or in elevation, some
corrections have to be applied to the basic procedure. The extension of the N2 method to plan-asymmetric buildings,
where torsional influences are important, was made by assuming that the torsional influences in the inelastic range are
the same as in the elastic range. The torsional influences are determined by the standard elastic modal analysis. They are
applied in terms of correction factors, which are used for the adjustment of results obtained by the usual pushover
analysis. Practically the same idea has been used for the extension of the N2 methodto medium- and high-rise buildings,
where higher mode effects are important along the elevation ofthe structure. It is assumed that the structure remains in
the elastic range when vibrating in higher modes, and that the seismic demands can be estimated as an envelope of
demands determined by a pushover analysis, which does not take into account the higher mode effects, and normalized
demands determined by an elastic modal analysis, which includes higher mode effects. Typically, the pushover analysis
controls the behavior of those parts of the structure where the major plastic deformations occur, whereas the elastic
analysis determines seismic demand at those parts where the higher mode effects are important. Due to the similarity of
the approaches, basically the same procedure as in the case of torsion can be applied. The influence of higher modes is
determined by standard elastic modal analysis, and used for the adjustment of the results obtained by the usual pushover
analysis.The proposed procedures (for taking into account higher mode effects in plan and in elevation) are consistent
and compatible. Both effects can be considered simultaneously bytwo sets of correction factors.
In order to predict the structural response for a building with a non-negligible effect of higher modes along the
elevation, the following procedure can be applied:
1. Perform the basic N2 analysis as explained in the previous section and target roof displacement is found out
2. Perform the standard elastic modal analysis of the MDOF model considering all relevantmodes. Determine
storey drifts for each storey. Normalize the results in such a way that thetop displacement is equal to the target
top displacement.
3. Determine the envelope of the results obtained in Steps 1 and 2.
(3a) For each storey, determine the correction factors CHM , which are defined as the ratio between the results
obtained by elastic modal analysis (Step 2) and the results obtainedby pushover analysis (Step 1). If the ratio is
larger than 1.0, the correction factor CHM is equal to this ratio, otherwise it amounts to 1.0. Note that the
correction factors fordisplacement are small and can be neglected in most practical applications. The correction
factors for storey drifts are important.
(3b)The resulting storey drifts (and displacements, if necessary) are obtained by multiplying the results
determined in Step 1 with the corresponding correction factors CHM.
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4. Determine other local quantities. The resulting correction factors for storey drifts CHMapplyto all local
deformation quantities (e.g. rotations). Correction factors CHM for storey driftsalso apply to internal member
forces, provided that the resulting internal forces do not exceedthe load-bearing capacity of the structural
member.
3. DESCRIPTION OF TEST BUILDING AND MATHEMATICAL MODELLING
3.1. Introduction
Two test examples, G+5storey and G+9storey reinforced concrete buildings having vertical setbacks are used
for the study. The structures designed for two different seismic zones. G+5storey building belongs to seismic zone III
and G+9storey building belongs to seismic zone IV.
Structures are modeled and designed using the software SAP2000. For the analysisthree-dimensional structural
model is chosen. The plastic rotational hinges at both ends of every line element (beam, column) are used. Five per cent
damping is assumed.
3.2. Application of Extended N2 method to G+5storeyReinforced Concrete building
Application of extended N2 method to G+5storey reinforced concrete building is described based on the
procedure described above and the results obtained are compared with the FEMA 356 values. The 3D model of the
structure considered is shown in Fig.1.Height of each storey is 5m.The structure belongs to seismic zone III (zone factor
Z=0.16).
Fig.1: 3D model of G+5storey RC building
The storey masses from bottom to the top amounts to
[m1, m2, m3, m4, m5, m6] = [848.04, 858.04, 618.28, 594.12, 347.28, 205.88]kN-S2
/m.
Linear displacement shape obtained from modal analysis is
Φ T
=[Φ1, Φ2, Φ3, Φ4, Φ5, Φ6] = [0.115, 0.324, 0.552, 0.769, 0.922, 1]
The MDOF system is transformed to an equivalent SDOF system using Eqs.
∆∗ = ∆τ/ Γ (1)
Φ∗ = ς/ Γ (2)
Mass of equivalent SDOF system, m* = ∑mi Φi = 1724.080 kN-S2
/m (3)
Transformation factor, Γ= m*/∑mi Φi2
= 1.509 (4)
With this force pattern, push over analysis were performed in both X and Y directions. Loading was applied
with +ve and– signs. The base shear Vstop displacement Dt relationship obtained from SAP 2000 in X- positive direction
is shown in Fig.2.
Fig.3defines both the V–Dt relationship for the MDOF system, and the force F* -displacement D* relation for
the equivalent SDOF system.The scale of the axes, however, is different for the MDOF and SDOF systems. The
factorbetween the two scales is equal to Γ. Bilinear idealization of the pushover curve is shown in Fig.3. Iteration was
used for determination of the bilinear idealization of pushover curves.
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Fig.2: Push over curve in X- positive direction
From Fig.3Assume dm*= 0.3m
The yield strength and displacement amount tofy*= 2250 kN and dy*= 0.22m.
The elastic period is T*= = 2.57 s (5)
From response spectrum shown in Fig.4, accelerationSa/g = 0.4 and time period,
Tc = 0.5331
The period of the system T* is larger than Tc.
Thus the equal displacement rule applies: µ = Rµ ,Sd = Sde.
The seismic demand for the equivalent SDOF system is found out using the formulae,
Sde = Se(T*)[ T*/ ]2
(6)
Se(T*) will obtained from response spectrum for corresponding value of time period T* and the value is Se(T*) = 0.853.
Sd = Sde= 0.143m
This Sdvalue is then used as the new approximation for target displacement. Iteration continued until similar
displacements obtains. Table 1 shows the calculation involved in finding out the target displacement of SDOF system
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Fig.3: Bilinear idealization of push over curve in X- positive direction
Fig.4: Response Spectrum
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Table1: Calculation of target displacement of SDOF system in X-direction
X-direction (+ve) X-direction (-ve)
Trial 1 Trial 2 Trial 3 Trial 1 Trial 2 Trial 3
Target displacement
assumed, dm*(m)
0.3 0.143 0.13 0.3 0.139 0.136
Yield strength Fy*(kN) 2250 1700 1500 2250 1500 1500
Yield displacement
dy*(m)
0.22 0.143 0.13 0.22 0.139 0.136
Elastic Time period,
T*= 2π √((m)*dy*)/Fy* (sec)
2.57 2.39 2.43 2.57 2.51 2.51
Elastic accleration,
Se(T*) m/sec2
0.853 0.9005 0.8834 0.833 0.853 0.853
Target displacement
of SDOF(m), Sd
0.143 0.13 0.132 0.139 0.136 0.136
The seismic demand for the equivalent SDOF system in X direction obtained from Table1 is 0.136m (higher
value of +ve and –ve direction).
In the next step the displacement demand of the equivalent SDOF system is transformed back to the top
displacement of the MDOF system (using Eq.1)
Dt = 0.205m
Similarly pushover analysis is done Y- direction also.
Table 2 shows the displacements obtained at various floors by N2 method.
In extended N2 method correction factors are applied which are based on the ratio between the normalized
results obtained by elastic modal analysis and the results obtained by push over analysis. Here the correction factor
obtained is less than one. So the target displacement need not be multiplied with correction factors.
Inference:
Target displacementobtained from FEMA 356 in X- direction = 0.188m
Target displacementobtained from FEMA 356 in Y- direction = 0.184m
Since there is no correction factor required, the results of N2 method and Extended N2 method are the same.
The results of the N2 method were within the range of results obtained from FEMA 356 or fairly close to the test results.
Time period obtained for first three modes from software is given in the Table 3,results are similar to those obtained by
N2 method.
Table 2: Displacements obtained by N2 method
Displacements obtained by N2 method
Floor X-direction in cm Y- direction in cm
1 1.44 1.98
2 3.98 5.56
3 9.56 9.92
4 13.33 14.35
5 19.95 17.73
6 20.5 20.5
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Table 3: Time Period of first three modes
Mode Period (Sec)
1 2.648037
2 2.514996
3 1.889716
3.3. Application of Extended N2 method to G+9Storey Reinforced Concrete building
Application ofextended N2 method to G+9Storey Reinforced concretebuilding is described based on the
procedure described above and the results obtained are compared with nonlinear dynamic analysis. The 3D model of the
structure considered is shown in Fig.5. Height of each storey is 3.5m.The structure belongs to seismic zone IV( zone
factor Z=0.24).
Fig.5: 3D model of G+9 storey RC building
The storey masses from bottom to the top amounts to
[m1, m2, m3, m4, m5, m6, m7, m8, m9, m10] = [1920.52, 1887.21, 1278.78, 1272.38, 974.58, 971.43, 673.63, 670.48,
372.68, 366.38]kN-S2
/m.
Linear displacement shape obtained from modal analysis is
Φ T
= [Φ1, Φ2, Φ3, Φ4, Φ5, Φ6, Φ7, Φ8, Φ9, Φ10] = [0.064206, 0.16397, 0.291203, 0.429896, 0.567577, 0.692787,
0.800725, 0.88844, 0.954837, 1]
The MDOF system is transformed to an equivalent SDOF system using Eqs.(1).
Mass of equivalent SDOF system, m* = ∑mi Φi = 4435.576 kN-S2
/m
Transformation factor, Γ = m*/∑mi Φi2
= 1.556
With this force pattern, push over analysis were performed in both X and Y directions. Loading was applied
with +ve and – signs. The base shear V–top displacement Dt relationship obtained from SAP 2000 in X- positive
direction is shown in Fig.6.
Fig.7defines both the V –D t relationship for the MDOF system, and the force F*- displacement D* relation for
the equivalent SDOF system.The scale of the axes, however, is different for the MDOF and SDOF systems. The
factorbetween the two scales is equal to Γ. Bilinear idealization of the pushover curve is shown in Fig.7. Iteration was
used for determination of the bilinear idealization of pushover curves.
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Fig.6: Push over curve in X- positive direction
From Fig.7 Assume dm*= 0.3m
The yield strength and displacement amount tofy*= 4800 kN and dy*= 0.1m.
The elastic period is T* = 1.91s(Eq.5).
Fig.7: Bilinear idealization of push over curve in X- positive direction
From response spectrum, Acceleration Sa/g = 0.6 and time period, Tc = 0.5331
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The period of the system T* is larger than Tc. Thus the equal displacement rule applies,
µ = Rµ ,Sd = Sde.
The seismic demand for the equivalent SDOF system is found out using the formulae,
Sde = Se(T*)[ T*/ ]2
Se(T*) will obtained from response spectrum for corresponding value of time period T* and the value is Se(T*) = 1.68.
Sd = Sde= 0.155m
This Sdvalue is then used as the new approximation for target displacement. Iteration continued until similar
displacements obtains. Table4 shows the calculation involved in finding out the target displacement of SDOF system in
X-direction.
The seismic demand for the equivalent SDOF system in X direction obtained is 0.156m (higher value of +ve
and –ve direction).
In the next step the displacement demand of the equivalent SDOF system is transformed back to the top
displacement of the MDOF system (using Eq.1)
Dt = 0.242m
Table 4: Calculation of target displacement of SDOF system in X-direction
X-direction (+ve) X-direction (-ve)
Trial 1 Trial 2 Trial 3 Trial 1 Trial 2 Trial 3
Target displacement
assumed, dm*(m)
0.3 0.155 0.156 0.2 0.143 0.149
Yield strength Fy*(kN) 4800 4700 4700 5000 4900 4900
Yield displacement dy*(m) 0.1 0.1 0.1 0.1 0.095 0.1
Elastic Time period ,
T*= 2π √((m)*dy*)/Fy* (sec)
1.91 1.93 1.93 1.87 1.84 1.89
Elastic accleration,
Se(T*) m/sec2 1.68 1.663 1.663 1.612 1.743 1.698
Target displacement
of SDOF(m), Sd
0.155 0.156 0.156 0.143 0.149 0.152
Similarly pushover analysis is done Y- direction also.
Displacements Obtained at various floors by N2 method is given in Table5 and Inter storey drift is shown in Table 6.
Table 5: Displacements Obtained by N2 method
Displacements Obtained at various floors by N2 method
Storey
Displacement
(X-direction) in mm
Displacement
(Y-direction) in mm
10 0.24 0.264
9 0.2036 0.2558
8 0.1695 0.2184
7 0.1394 0.1977
6 0.111 0.1485
5 0.0874 0.1179
4 0.0638 0.0707
3 0.0423 0.0469
2 0.023 0.014
1 0.009 0.056
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Table 6: Inter Storey Drift
Inter Storey Drift
Storey Drift in X direction Drift in Y direction
9 &10 0.009742857 0.010685714
8&9 0.0086 0.005914286
7&8 0.008114286 0.014057143
6&7 0.006742857 0.008742857
5&6 0.006742857 0.013485714
4&5 0.006142857 0.0068
3&4 0.005514286 0.0094
2&3 0.004 0.012
1&2 0.002571429 0.016
Elastic modal analysis of the MDOF model was performed, considering the first three modes. Their
effectivemodalmassescontribute98%ofthetotalmass.TheSRSSruleforthecombinationof different modeswasapplied.
Displacements and storey drifts were determined and are shown in Table 7.
Table 7: Inter Storey Drift by Modal Analysis
Inter Storey Drift by Modal Analysis
Storey Drift in X direction Drift in Y direction
9 &10 0.00176846 0.000224214
8&9 0.002016678 0.000257008
7&8 0.0015465 0.000625204
6&7 0.001093343 5.60596E-05
5&6 0.000759428 0.001025099
4&5 0.000940758 0.000629244
3&4 0.001241681 0.001161497
2&3 0.001458921 0.000764556
1&2 0.001238861 0.000711759
Determination of correction factors
IntheextendedN2method,theresultsofpushoveranalysisaremultipliedbycorrection factors CHM,which depend on
the elevation of the structure.Different values of CHMapply to the displacements and storey drifts. The correction factors
are based on the ratio between the normalized results obtained by elastic modal analysis and the results obtained by
pushover analysis. If this ratio is larger than 1.0, then the correction CHM is equal to this ratio, otherwise it amounts
to1.0.The correction factors are in the range between 1.0 and 1.8. The correction factors obtained are given in the Table
8. Storey drifts obtained by N2 method, Extended N2 method and time history analysis are shown on Table 9 and Fig. 8
Table 8: Correction Factors for Storey Drift
Correction Factors for Storey Drift
Storey Correction factor
9 &10 1
8&9 1.217273833
7&8 1.057522429
6&7 0.792399804
5&6 0.662339309
4&5 0.820487556
3&4 1.188715224
2&3 1.555895923
1&2 1.821380533
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Table 9: Comparison of Storey Drift
Storey Drift obtained
Storey N2 method
Extended N2
method
Time history
analysis
9 &10 0.0104 0.0104 0.009842
8&9 0.009742857 0.011859725 0.009339
7&8 0.0086 0.009094693 0.008157
6&7 0.008114286 0.008114286 0.008014
5&6 0.006742857 0.006742857 0.01
4&5 0.006742857 0.006742857 0.006
3&4 0.006142857 0.007302108 0.007617
2&3 0.005514286 0.008579655 0.006787
1&2 0.004 0.007285522 0.0049
Fig.8: Storey Drifts obtained by N2, Extended N2 method and Time history analysis
Inference:
Storey drifts obtained by extended N2 method are compared with storey drifts obtained by time history analysis
shown in Fig.9. In the upper stories values obtained by extended N2 method are higher than time history values.
In asymmetric setback plane i.e. in X-direction, drift values are more dependent on higher modes or extended
N2 method can safely predict the drift demands. In Y-direction extended n2 method is overestimating the drift demands.
We can say that extended N2 method can be used for asymmetric plane performance evaluation.
From Fig. 5.19, it can be seen that at mid height the drift values obtained extended N2 method is less compared to time
history values due to the reason that the correction factors are obtained from elastic modal analysis which does not
consider the non-linear effects due to higher modes.
Extended N2 method is based on displacement controlled pushover analysis. In medium rise or higher storied
buildings push over results obtained from generally applied load pattern cannot predict the base shear demands
accurately due to the higher mode effects
CONCLUSIONS
Extended N2 method is a simple, rational analysis performance evaluation method for practical applications. It
has proven to better results for displacement and drift demands of asymmetric buildings. In this study buildings with
setbacks on one plane was chosen and the predictions of extended N2 method are evaluated with respect to the time
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history analysis. It could be seen that the predictions from this method are safer for the plane of asymmetry and for the
symmetric plane the performance evaluation can be done even with the basic N2 method.
This study focus on the application of extended N2 method for 3D building frames. Parametric study can be
conducted on set of buildings with varying irregularities. Soil structure interaction effects can be incorporated for further
studies.
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