Tower design using Dynamic analysis method is now became easier than ever with this simple and effective PDF manual. Starting from modeling, defining till computing results based on Dynamic Analysis you can build the tower of your dream.
Engineering is fun and so does this PDF !
The document describes an upcoming seminar on optimizing the modeling and design of steel structures using the ETABS software. The seminar will cover general modeling techniques, static and dynamic loading, steel frame design, composite beam design, vibration analysis, and pushover analysis. Eight example models will be presented to illustrate skills like modeling curved ramps, shear walls, composite beams, braced frames, and nonlinear dynamic analysis. Attendees will learn how to efficiently model complex steel structures and optimize the design in ETABS.
This document provides an overview of modeling a three-story L-shaped concrete building in ETABS. Key steps include generating grids, drawing wall objects to form bays, modeling an elevator core using fine grid snapping, assigning properties like slab thickness and loads, and performing both static and earthquake analysis according to UBC97 code. The example demonstrates ETABS capabilities for integrated object-based modeling of concrete structures with features like automatic load transfer, shear wall design, and modeling of floor diaphragms and cores.
All mat-raft-piles-mat-foundation- اللبشة – الحصيرة العامة -لبشة الخوازيق ( ا...Dr.Youssef Hammida
This document provides guidance on the steps required for designing mat foundations with piles. The key steps include:
1) Determining total vertical loads and adding 1% for eccentricity.
2) Dividing the total load by the allowable soil bearing capacity to determine the number of piles.
3) Checking stresses on the mat and piles, including uplift, shear, and moment forces as required.
4) Calculating free pile length and location of fixity based on soil properties.
5) Designing the mat and piles considering both vertical and horizontal/seismic loads.
Book for Beginners, RCC Design by ETABSYousuf Dinar
Advancement of softwares is main cause behind comparatively quick and simple
design while avoiding complexity and time consuming manual procedure. However
mistake or mislead could be happened during designing the structures because of not
knowing the proper procedure depending on the situation. Design book based on
manual or hand design is sometimes time consuming and could not be good aids with
softwares as several steps are shorten during finite element modeling. This book may
work as a general learning hand book which bridges the software and the manual
design properly. The writers of this book used linear static analysis under BNBC and
ACI code to generate a six story residential building which could withstand wind load
of 210 kmph and seismic event of that region. The building is assumed to be designed
in Dhaka, Bangladesh under RAJUK rules to get legality of that concern organization.
For easy and explained understanding the book chapters are oriented in 2 parts. Part A
is concern about modeling and analysis which completed in only one chapter. Part B
is organized with 8 chapters. From chapter 1 to 7 the writers designed the model
building and explained with references how to consider during design so that
creativity of readers could not be threated. Chapter 8 is dedicated for estimation. As a
whole the book will help the readers to experience a building construction related all
facts and how to progress in design. Although the volume I is limited to linear static
analysis, upcoming volume will eventually consider dynamic facts to perform
dynamic analysis. Implemented equations are organized in the appendix section for
easy memorizing.
BNBC and other codes are improving and expending day by day, by covering new
and improved information as civil engineering is a vast field to continue the research.
Before designing something or taking decision judge the contemporary codes and
choose data, equations, factors and coefficient from the updated one.
Book for Beginners series is basic learning book of YDAS outlines. Here only
rectangular grid system modeling and a particular model is shown. Round shape grid
is avoided to keep the study simple. No advanced analysis is described and it is kept
simple for beginners. Only two way slab is elaborated with direct design method,
avoiding other procedures. In case of beam, only flexural and shear designs are made.
T- Beam, L- Beam or other shapes are not shown as rectangular beam was enough for
this study. Bi-axial column and foundation design is not shown. During column and
foundation design only pure axial load is considered. Use of interaction diagram is not
shown in manual design. Load centered isolated and combined footing designs are
shown, avoiding eccentric loading conditions. Pile and pile cap design, Mat
foundation design, strap footing design and sand pile concept are not included in this
CE 72.32 (January 2016 Semester) Lecture 8 - Structural Analysis for Lateral ...Fawad Najam
The document is a lecture on structural analysis for lateral loads in the design of tall buildings given by Dr. Naveed Anwar. It covers various topics related to seismic and wind analysis including basic elements of seismology, classifying earthquakes, the seismic analysis problem, forces generated by earthquakes, and analysis methods like equivalent static load, response spectrum, and time history analyses. The lecture also discusses analysis for wind loads and combining responses for member design.
The Manual explains the concept of transferring the load from the super structure up to the soil throughout Piles, which has a capacity of (End bearing, and Skin friction). It illustrates the steps needed to produce a full and safe foundation for your Super Structure.
Tutorial for design of foundations using safeAsaye Dilbo
This document provides a tutorial on designing foundations using the CSI-SAFE software. It outlines how to model isolated, combined and mat foundations. Specifically, it describes how to design a square isolated footing from the built-in model by inputting dimensions, loads and material properties. It also mentions how to model rectangular and circular footings using grids or importing from AutoCAD. The tutorial is intended for readers familiar with shallow foundation design theory.
Tower design using Dynamic analysis method is now became easier than ever with this simple and effective PDF manual. Starting from modeling, defining till computing results based on Dynamic Analysis you can build the tower of your dream.
Engineering is fun and so does this PDF !
The document describes an upcoming seminar on optimizing the modeling and design of steel structures using the ETABS software. The seminar will cover general modeling techniques, static and dynamic loading, steel frame design, composite beam design, vibration analysis, and pushover analysis. Eight example models will be presented to illustrate skills like modeling curved ramps, shear walls, composite beams, braced frames, and nonlinear dynamic analysis. Attendees will learn how to efficiently model complex steel structures and optimize the design in ETABS.
This document provides an overview of modeling a three-story L-shaped concrete building in ETABS. Key steps include generating grids, drawing wall objects to form bays, modeling an elevator core using fine grid snapping, assigning properties like slab thickness and loads, and performing both static and earthquake analysis according to UBC97 code. The example demonstrates ETABS capabilities for integrated object-based modeling of concrete structures with features like automatic load transfer, shear wall design, and modeling of floor diaphragms and cores.
All mat-raft-piles-mat-foundation- اللبشة – الحصيرة العامة -لبشة الخوازيق ( ا...Dr.Youssef Hammida
This document provides guidance on the steps required for designing mat foundations with piles. The key steps include:
1) Determining total vertical loads and adding 1% for eccentricity.
2) Dividing the total load by the allowable soil bearing capacity to determine the number of piles.
3) Checking stresses on the mat and piles, including uplift, shear, and moment forces as required.
4) Calculating free pile length and location of fixity based on soil properties.
5) Designing the mat and piles considering both vertical and horizontal/seismic loads.
Book for Beginners, RCC Design by ETABSYousuf Dinar
Advancement of softwares is main cause behind comparatively quick and simple
design while avoiding complexity and time consuming manual procedure. However
mistake or mislead could be happened during designing the structures because of not
knowing the proper procedure depending on the situation. Design book based on
manual or hand design is sometimes time consuming and could not be good aids with
softwares as several steps are shorten during finite element modeling. This book may
work as a general learning hand book which bridges the software and the manual
design properly. The writers of this book used linear static analysis under BNBC and
ACI code to generate a six story residential building which could withstand wind load
of 210 kmph and seismic event of that region. The building is assumed to be designed
in Dhaka, Bangladesh under RAJUK rules to get legality of that concern organization.
For easy and explained understanding the book chapters are oriented in 2 parts. Part A
is concern about modeling and analysis which completed in only one chapter. Part B
is organized with 8 chapters. From chapter 1 to 7 the writers designed the model
building and explained with references how to consider during design so that
creativity of readers could not be threated. Chapter 8 is dedicated for estimation. As a
whole the book will help the readers to experience a building construction related all
facts and how to progress in design. Although the volume I is limited to linear static
analysis, upcoming volume will eventually consider dynamic facts to perform
dynamic analysis. Implemented equations are organized in the appendix section for
easy memorizing.
BNBC and other codes are improving and expending day by day, by covering new
and improved information as civil engineering is a vast field to continue the research.
Before designing something or taking decision judge the contemporary codes and
choose data, equations, factors and coefficient from the updated one.
Book for Beginners series is basic learning book of YDAS outlines. Here only
rectangular grid system modeling and a particular model is shown. Round shape grid
is avoided to keep the study simple. No advanced analysis is described and it is kept
simple for beginners. Only two way slab is elaborated with direct design method,
avoiding other procedures. In case of beam, only flexural and shear designs are made.
T- Beam, L- Beam or other shapes are not shown as rectangular beam was enough for
this study. Bi-axial column and foundation design is not shown. During column and
foundation design only pure axial load is considered. Use of interaction diagram is not
shown in manual design. Load centered isolated and combined footing designs are
shown, avoiding eccentric loading conditions. Pile and pile cap design, Mat
foundation design, strap footing design and sand pile concept are not included in this
CE 72.32 (January 2016 Semester) Lecture 8 - Structural Analysis for Lateral ...Fawad Najam
The document is a lecture on structural analysis for lateral loads in the design of tall buildings given by Dr. Naveed Anwar. It covers various topics related to seismic and wind analysis including basic elements of seismology, classifying earthquakes, the seismic analysis problem, forces generated by earthquakes, and analysis methods like equivalent static load, response spectrum, and time history analyses. The lecture also discusses analysis for wind loads and combining responses for member design.
The Manual explains the concept of transferring the load from the super structure up to the soil throughout Piles, which has a capacity of (End bearing, and Skin friction). It illustrates the steps needed to produce a full and safe foundation for your Super Structure.
Tutorial for design of foundations using safeAsaye Dilbo
This document provides a tutorial on designing foundations using the CSI-SAFE software. It outlines how to model isolated, combined and mat foundations. Specifically, it describes how to design a square isolated footing from the built-in model by inputting dimensions, loads and material properties. It also mentions how to model rectangular and circular footings using grids or importing from AutoCAD. The tutorial is intended for readers familiar with shallow foundation design theory.
The lecture is in support of:
(1) The Design of Building Structures (Vol.1, Vol. 2), rev. ed., PDF eBook by Wolfgang Schueller, 2016
(2) Building Support Structures, Analysis and Design with SAP2000 Software, 2nd ed., eBook by Wolfgang Schueller,
The SAP2000V15 Examples and Problems SDB files are available on the Computers & Structures, Inc. (CSI) website: http://www.csiamerica.com/go/schueller
Etabs example-rc building seismic load response-Bhaskar Alapati
This document provides step-by-step instructions for performing a modal response spectra analysis and design of a 10-story reinforced concrete building model in ETABS. It describes opening an existing model, defining response spectrum functions and cases based on IBC2000 parameters, running a modal analysis and response spectral analysis, and reviewing results including mode shapes, member forces, and designing concrete frames and shear walls. The objective is to demonstrate modal response spectra analysis and design of the building model according to IBC2000 seismic code provisions.
Modelling Building Frame with STAAD.Pro & ETABS - Rahul LeslieRahul Leslie
The document discusses modeling a reinforced concrete building frame using STAAD.Pro and ETABS software. It describes how to model the beams, columns, slabs, walls, stairs, and foundations. Initial member sizes are determined based on architectural requirements and design formulas. The building is modeled by framing the beams and columns. Loads like self-weight, floor loads, and wall loads are applied to the frame. Material properties of concrete are also specified. The document provides guidance on modeling the structural elements and applying loads in STAAD.Pro and ETABS to analyze the building frame.
1. The document discusses the behavior of reinforced concrete sections subjected to combined flexural moment and axial force.
2. It describes the unified theory for analyzing concrete design, which can develop a single theory to determine stress resultants for various concrete member types, design methods, and codes.
3. The theory unifies the analysis of beams, columns, reinforced concrete, pre-stressed concrete, and different cross-section types by incorporating various stress-strain models.
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 provides a tutorial for modeling and analyzing a G+10 reinforced concrete building using the structural analysis software ETABS. It outlines the step-by-step process for creating an ETABS model, including defining materials, sections, geometry, loads, supports, and running the analysis. It also describes how to display and interpret the results tabularly and graphically. The tutorial uses the architectural plans and specifications of the example G+10 building to demonstrate modeling the building, assigning properties, meshing, applying loads, and checking the model before running the analysis in ETABS.
• A retaining wall construction method in which walls are constructed with small gaps between adjacent piles. The size of the space is determined by the nature of the soils.
• الخوازيق الساندة بيتم تنفيذها قبل حفر الموقع لأن وظيفتها سند جوانب الحفر
ولايتم الحفر قبل مرور 28 يوم على تنفيذ آخر خازوق ساند
• وبيتم استخدام الخوازيق البنتونيت فى حالة وجود مياة جوفية بمنسوب أعلى ممنسوب الحفرن
• وبيتم تنفيذ الخوازيق البنتونيت أولا ثم بين كل خازوقين بنتونيت يتم تنفيذ خازوق خرسانى بحيث يتداخل بالخوازيق البنتونيت أثناءالتنفي ولا تأثير انشائي له سواء الاملاء وسند التربة
Simplified design of reinforced concrete buildings Sarmed Shukur
This document provides an overview of a publication titled "Simplified Design of Reinforced Concrete Buildings" which outlines simplified design methods for reinforced concrete structures. The publication aims to reduce design time by providing timesaving procedures and aids for experienced designers. It focuses on conventional reinforced concrete buildings between 3-5 stories tall with typical framing systems. The document discusses loading calculations, frame analysis techniques using coefficients or analytical methods, and preliminary sizing of structural elements like floors, columns, shear walls and footings.
CE 72.52 Lecture 4 - Ductility of Cross-sectionsFawad Najam
This document provides information on ductility of concrete structures. It discusses how ductility is key to good seismic performance of structures. Ductility is defined and different levels of ductility are described, from the material level to the structural level. Factors that affect ductility include confinement of concrete, reinforcement, cross-section shape, and applied loads. Moment-curvature relationships are used to compute ductility at the cross-section level. Confinement improves concrete ductility by modifying its stress-strain behavior. Spiral reinforcement increases concrete strength under triaxial compression. Moment-curvature curves can indicate yield points and failure mechanisms for different types of sections.
(1) The document discusses nonlinear modeling of reinforced concrete frame structures. It focuses on concentrated plasticity approaches where plasticity is concentrated at specific points, typically at the ends of beams and columns.
(2) Two methods for defining plastic hinge behavior are described: distributed plasticity, where plasticity is spread over the element length, and concentrated plasticity, where it is localized at specific points. Concentrated plasticity is commonly used for nonlinear static analysis of frames.
(3) Procedures for developing moment-rotation relationships for plastic hinges based on moment-curvature analysis or empirical equations are presented. These relationships define the inelastic behavior of components in the nonlinear analysis.
The document discusses the different section assignment options for slabs and walls in ETABS - membrane, shell, and plate. Membrane sections have no out-of-plane stiffness and cannot contribute to resisting bending moments, while plate sections have full out-of-plane stiffness but no in-plane stiffness. Shell sections have both. The effects of each assignment are verified in models of a simple slab. Membrane assignment results in zero slab moments and increased beam moments. Shell and plate assignments produce similar results that account for slab contribution, with lower beam moments. Recommendations are provided on appropriate usage of each section type.
The document discusses the design of columns in concrete structures. It covers several topics related to column design including: member strength and capacity versus section capacity, moment magnification, issues regarding slenderness effects, P-Delta analysis, and effective design considerations. The key steps in column design are outlined, including determining loads, geometry, materials, checking slenderness, computing design moments and capacities, and iterating the design as needed. Factors that influence column capacity such as slenderness, bracing, and effective length and stiffness are also described.
This document provides an overview of wind load calculation procedures according to the International Building Code (IBC) 2012 and American Society of Civil Engineers (ASCE) 7-10 standards. It defines important terms related to wind loads and explains changes made in ASCE 7-10 from the previous ASCE 7-05 standard. The major wind load calculation procedures covered are the directional procedure for buildings of all heights, the envelop procedure for low-rise buildings, and the wind tunnel procedure. Steps of the directional procedure are outlined, including determining the risk category, basic wind speed, wind parameters, velocity pressure coefficients, and velocity pressure.
Seismic Design of RC Diaphragms, Chords, and CollectorsRuangRangka
This document summarizes a presentation on seismic design of reinforced concrete diaphragms. It outlines the presentation topics which include an introduction to diaphragms, an overview of a case study building, calculating diaphragm forces from different methods, reviewing diaphragm components, using section cuts and simplified beam methods for analysis, and designing chords, collectors, and shear reinforcement. It also provides biographies of the presenters and describes assigning forces in structural analysis software.
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. It id offers a detail view of the design of steel framed buildings to the structural Eurocodes and includes a set of worked examples showing the design of structural elements with using software (CSI ETABS). It is intended to be of particular to the people who want to become acquainted with design to the Eurocodes. Rules from EN 1998-1-1 for global analysis, type of analysis and verification checks are presented. Detail design rules for steel composite beam, steel column, steel bracing and composite slab with steel sheeting from EN 1998-1-1, EN1993-1-1 and EN1994-1-1 are presented. This guide covers the design of orthodox members in steel frames. It does not cover design rules for regularities. Certain practical limitations are given to the scope.
The document discusses how to analyze and design a raft foundation modeled with plate elements in STAAD Pro. It explains that STAAD provides shear stresses (SQX, SQY) directly from the stress contour output. These stresses can be used to calculate shear forces and check design requirements for bending, one-way shear, and punching shear. The thickness of the plate model needs to be checked and updated if not adequate based on the design checks. Proper node numbering and orientation of local axes for each element is also important for interpreting the stress results correctly.
Peer review presentation for the strut and tie method as an analysis and design approach for the mat on piles foundations of the primary separation cell (vessel).
The lecture is in support of:
(1) The Design of Building Structures (Vol.1, Vol. 2), rev. ed., PDF eBook by Wolfgang Schueller, 2016
(2) Building Support Structures, Analysis and Design with SAP2000 Software, 2nd ed., eBook by Wolfgang Schueller,
The SAP2000V15 Examples and Problems SDB files are available on the Computers & Structures, Inc. (CSI) website: http://www.csiamerica.com/go/schueller
Etabs example-rc building seismic load response-Bhaskar Alapati
This document provides step-by-step instructions for performing a modal response spectra analysis and design of a 10-story reinforced concrete building model in ETABS. It describes opening an existing model, defining response spectrum functions and cases based on IBC2000 parameters, running a modal analysis and response spectral analysis, and reviewing results including mode shapes, member forces, and designing concrete frames and shear walls. The objective is to demonstrate modal response spectra analysis and design of the building model according to IBC2000 seismic code provisions.
Modelling Building Frame with STAAD.Pro & ETABS - Rahul LeslieRahul Leslie
The document discusses modeling a reinforced concrete building frame using STAAD.Pro and ETABS software. It describes how to model the beams, columns, slabs, walls, stairs, and foundations. Initial member sizes are determined based on architectural requirements and design formulas. The building is modeled by framing the beams and columns. Loads like self-weight, floor loads, and wall loads are applied to the frame. Material properties of concrete are also specified. The document provides guidance on modeling the structural elements and applying loads in STAAD.Pro and ETABS to analyze the building frame.
1. The document discusses the behavior of reinforced concrete sections subjected to combined flexural moment and axial force.
2. It describes the unified theory for analyzing concrete design, which can develop a single theory to determine stress resultants for various concrete member types, design methods, and codes.
3. The theory unifies the analysis of beams, columns, reinforced concrete, pre-stressed concrete, and different cross-section types by incorporating various stress-strain models.
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 provides a tutorial for modeling and analyzing a G+10 reinforced concrete building using the structural analysis software ETABS. It outlines the step-by-step process for creating an ETABS model, including defining materials, sections, geometry, loads, supports, and running the analysis. It also describes how to display and interpret the results tabularly and graphically. The tutorial uses the architectural plans and specifications of the example G+10 building to demonstrate modeling the building, assigning properties, meshing, applying loads, and checking the model before running the analysis in ETABS.
• A retaining wall construction method in which walls are constructed with small gaps between adjacent piles. The size of the space is determined by the nature of the soils.
• الخوازيق الساندة بيتم تنفيذها قبل حفر الموقع لأن وظيفتها سند جوانب الحفر
ولايتم الحفر قبل مرور 28 يوم على تنفيذ آخر خازوق ساند
• وبيتم استخدام الخوازيق البنتونيت فى حالة وجود مياة جوفية بمنسوب أعلى ممنسوب الحفرن
• وبيتم تنفيذ الخوازيق البنتونيت أولا ثم بين كل خازوقين بنتونيت يتم تنفيذ خازوق خرسانى بحيث يتداخل بالخوازيق البنتونيت أثناءالتنفي ولا تأثير انشائي له سواء الاملاء وسند التربة
Simplified design of reinforced concrete buildings Sarmed Shukur
This document provides an overview of a publication titled "Simplified Design of Reinforced Concrete Buildings" which outlines simplified design methods for reinforced concrete structures. The publication aims to reduce design time by providing timesaving procedures and aids for experienced designers. It focuses on conventional reinforced concrete buildings between 3-5 stories tall with typical framing systems. The document discusses loading calculations, frame analysis techniques using coefficients or analytical methods, and preliminary sizing of structural elements like floors, columns, shear walls and footings.
CE 72.52 Lecture 4 - Ductility of Cross-sectionsFawad Najam
This document provides information on ductility of concrete structures. It discusses how ductility is key to good seismic performance of structures. Ductility is defined and different levels of ductility are described, from the material level to the structural level. Factors that affect ductility include confinement of concrete, reinforcement, cross-section shape, and applied loads. Moment-curvature relationships are used to compute ductility at the cross-section level. Confinement improves concrete ductility by modifying its stress-strain behavior. Spiral reinforcement increases concrete strength under triaxial compression. Moment-curvature curves can indicate yield points and failure mechanisms for different types of sections.
(1) The document discusses nonlinear modeling of reinforced concrete frame structures. It focuses on concentrated plasticity approaches where plasticity is concentrated at specific points, typically at the ends of beams and columns.
(2) Two methods for defining plastic hinge behavior are described: distributed plasticity, where plasticity is spread over the element length, and concentrated plasticity, where it is localized at specific points. Concentrated plasticity is commonly used for nonlinear static analysis of frames.
(3) Procedures for developing moment-rotation relationships for plastic hinges based on moment-curvature analysis or empirical equations are presented. These relationships define the inelastic behavior of components in the nonlinear analysis.
The document discusses the different section assignment options for slabs and walls in ETABS - membrane, shell, and plate. Membrane sections have no out-of-plane stiffness and cannot contribute to resisting bending moments, while plate sections have full out-of-plane stiffness but no in-plane stiffness. Shell sections have both. The effects of each assignment are verified in models of a simple slab. Membrane assignment results in zero slab moments and increased beam moments. Shell and plate assignments produce similar results that account for slab contribution, with lower beam moments. Recommendations are provided on appropriate usage of each section type.
The document discusses the design of columns in concrete structures. It covers several topics related to column design including: member strength and capacity versus section capacity, moment magnification, issues regarding slenderness effects, P-Delta analysis, and effective design considerations. The key steps in column design are outlined, including determining loads, geometry, materials, checking slenderness, computing design moments and capacities, and iterating the design as needed. Factors that influence column capacity such as slenderness, bracing, and effective length and stiffness are also described.
This document provides an overview of wind load calculation procedures according to the International Building Code (IBC) 2012 and American Society of Civil Engineers (ASCE) 7-10 standards. It defines important terms related to wind loads and explains changes made in ASCE 7-10 from the previous ASCE 7-05 standard. The major wind load calculation procedures covered are the directional procedure for buildings of all heights, the envelop procedure for low-rise buildings, and the wind tunnel procedure. Steps of the directional procedure are outlined, including determining the risk category, basic wind speed, wind parameters, velocity pressure coefficients, and velocity pressure.
Seismic Design of RC Diaphragms, Chords, and CollectorsRuangRangka
This document summarizes a presentation on seismic design of reinforced concrete diaphragms. It outlines the presentation topics which include an introduction to diaphragms, an overview of a case study building, calculating diaphragm forces from different methods, reviewing diaphragm components, using section cuts and simplified beam methods for analysis, and designing chords, collectors, and shear reinforcement. It also provides biographies of the presenters and describes assigning forces in structural analysis software.
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. It id offers a detail view of the design of steel framed buildings to the structural Eurocodes and includes a set of worked examples showing the design of structural elements with using software (CSI ETABS). It is intended to be of particular to the people who want to become acquainted with design to the Eurocodes. Rules from EN 1998-1-1 for global analysis, type of analysis and verification checks are presented. Detail design rules for steel composite beam, steel column, steel bracing and composite slab with steel sheeting from EN 1998-1-1, EN1993-1-1 and EN1994-1-1 are presented. This guide covers the design of orthodox members in steel frames. It does not cover design rules for regularities. Certain practical limitations are given to the scope.
The document discusses how to analyze and design a raft foundation modeled with plate elements in STAAD Pro. It explains that STAAD provides shear stresses (SQX, SQY) directly from the stress contour output. These stresses can be used to calculate shear forces and check design requirements for bending, one-way shear, and punching shear. The thickness of the plate model needs to be checked and updated if not adequate based on the design checks. Proper node numbering and orientation of local axes for each element is also important for interpreting the stress results correctly.
Peer review presentation for the strut and tie method as an analysis and design approach for the mat on piles foundations of the primary separation cell (vessel).
الفصل الرابع الأعلان عن الإجراء Sub
الاجراء ( procedure )
هو مجموعة من الاوامر و التعليمات ( code ) تحت اسم ما عند استدعاء هذا الاسم يتم تنفيذ هذه الاوامر و التعليمات
6. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
Define……
1- Define material + material properties + add new material
أما الجديده الماده نسميConc.أوConc.250أوConc.300المهم نسميها نحب ما علي أو
.....الخواص
علي ندخل وبعدينadd new material....الموجوده المواد احد في نعدل أو
1- Write material Name as you like
2- Choose "Isotropic"
3- Mass per unit volume = 0.25
7. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
4-Weight per unit volume
5- Modulus of Elasticity = 14000*Sqr (Fcu) …………………………Kg/cm2
= 4400*Sqr (Fcu) …………………………..N/mm2
= 14000*10* Sqr (Fcu)...………………...T/m2
بـ الوحدات ان وحيثT.m... االخيرة العاللة هنستخدم البرنامج في المستخدمة
6- Poisson's Ratio = 0.2
7- Design …….. Concrete
اضغط وبعدينOKالـ عرفنا نكون ..وبكداMaterial.....
عل ندخلوتعريفها القطــــــــــــــــــــاعات ي........
... التالية النافذة لينا هيظهر1- Define + Frame Sections
كان ان اي المطاع شكل هنختارadd Rectangular OR add Circular
8. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
هيظهر....,,, التالية النافذة كدا بعد لينا
... االتي عمل في هبدأ
1-Section Name………… Say "B 25x50" or "C 30x60"
2-select Material "Name of material that you are defined before"
3- Depth and width
4- SetModifiers…. According to the type of sec. Column or Beam or…
9. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
Modifiers for Column Modifiers for Beams
Torsional Constant= 1 Torsional Constant = 0.01
Momentof inertia about2 = 0.7 Moment of inertia about2 = 0.5
Momentof inertia about3 = 0.7 Moment of inertia about 3 = 0.5
Others Modifiers in Beams and in Columns Equal 1.0
Define Wall/Slab/Deck………
Define + Wall/Slab/Deck Sections..
بنختار بالطة بنعرف ....لو التالية النافذة لين هتظهرAdd New Slab
10. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
تانية لائمة علي هدخلنااالتي فيها ونكتب
................:
1- Section Name …..Say"S15"
2-Material….………"Conc"
3-Membrane.……"=t of slab"
4- Bending……….…"t of slab"
5- Choose……Shell
6- Modifiers………………………..
For Slabs
Bending m1 1 Modifier = 0.25
Bending m2 2 Modifier = 0.25
Bending m3 3 Modifier = 0.25
-...........االخر العنصر عن مغاير لون عنصر لكل اعطاء يجب
Eng.Mohamed Abd ElTwab
Civil Engineer
Fayoum
11. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
حائط بنعرف لو بمي أمابنختارAdd New Wall......
1- Section Name …..Say"W30"
2-Material….………"Conc"
3-Membrane.……"=t of wall"
4- Bending……….…"t of wall"
5- Choose……Shell
6- Modifiers………………………..
For Walls
Bending m1 1 Modifier = 0.35
Bending m2 2 Modifier = 0.35
Bending m3 3 Modifier = 0.35
12. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
…….General Notes
- Shell………………………………Use general for element on 3d" means that both in-plane membrane
stiffness and out-of-plane plate bending stiffness are provided for the section".
- Membrane…………………"means that only in-plane membrane stiffness is provided for the
section" Such as Walls.
- Plate……………………." means that only out-of-plane plate bending stiffness is provided for the
section" Such as Slabs and Raft in 2d only.
- Thick Plate…………."use if the thickness is huge thickness".
تحويل دور– Transfer Slab
ودي "بعدها ما غير لبلها كله المنشأ في االعمدة اماكن تغيير يراد عندما عمله بيتم "وده
....كبير سمن ذات بالطة بتكون(1الي م1.1. ) م
13. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
-لائمة في شوية هندخلDraw................
-الـ عملCore and Shear wall and Retaining wallلط واللي منهم كال أختيار يتم.. واحد اعهم
- Edit + Extrude line to area + dz = - h"Floor height" ,Linear, select "Delete Source object"to
delete line…….,Number = 1.
-لائمة من نرسمها الممكن منDraw........ أفضل بطريمة
- Draw + Draw area objects + Draw walls Plan + select cross sec. as you defined before.
-الـ شغلAll Storyالـ مع وينتهي يبدا الحائط وأعمل االدوار كل في الحائط لوShellsعشان
الـ اتجاه في للحوائط تمسيم محتجشShells. كدا بعد
14. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
-الـ اتجاه في الحوائط ممسم انا كداShellsاالتجاه في وهو التاني التمسيم بالي الرسم اثناء
........ كالتالي وهيكون االفمي...االتجاهين في الحوائط تمسيم من انتهينا يكون وبعدها
- Select wall that you need to divided then "Edit + mesh areas + mesh Q.../Tri…1>>>>3 + Ok.
15. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
- Choose all Wall in 3D
and Choose Assign shell/ area + Pier Label….
-الـ اسم نكتب وبعدينpierنمول ثمadd new pierوندوسOk...
-... باكمله الحائط تديد في للدلة للحوائط االفمي التمسيم لبل الخطوة هذه عمل يفضل
- Assign Pier فريم "كـ الحائط مع التعامل جعل في مهمة خطوة هذهالعزوم رسم في "ايلمنت
.....واالجهادات
- Difference between "Pier,,,Spandrel"
- Pier ……….. refer to deal with element as frame element in moment and stresses Such as
Columns..
- Spandrel ……….. refer to deal with element as frame element in moment and stresses Such
as Beams.." A wall spandrel can be made up from a combination of both area objects (shell elements) and
line objects (frame elements). To get output forces reported for wall spandrels or to design wall spandrels"
-For Opening in Walls
- Design" Couple Beam" as Spandrel and other element in the wall as Pier …
16. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
-ايمونة بختار اما لالعمدة بالنسبةCreate Col.
من المنشأ........أو في وضعه وكذلن العمود لطاع منها بختار نافذة ليا وهيطلعDraw
- Draw + Draw line object + Create Column in Region "Same window open to choose sec…"
..... القطاع باختيار الخاصة النافذه هذه لينا هيظهر بعدهاالكاد من الموضح المكان في العمود نرسم ونبدأ
ونشغلAll Story... كله المنشأ في واحد مكانها يكون العمدان عشان
-متظبط بيكون العمود ارتفاعautomatic. الدور مع
-وبشغل ده الدور باختار معين دور في موجود مش عمود لوOne Storyمن العمود بمسح ثم
.... بس واحد دور في ...أو معين دور من ابتدأ هضيفعمود لو الموضوع ونفس . ده الدور
- Be Carefully in Use (Similar, One, All) Story option when editing or deleting any element...
-.. بمكانه االحتفاظ مع التاني االتجاه في تلفه عايز وانتا باتجاه عمود درب عندن أنتا لو
- Select column then "Assign + Frame (line) + local axis + angle =90…
الـ اختار ممكن كانLocal axes... فوق من الشريط من
17. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
- Refresh window to display new editing…
-لعمل.......... االدوار كل في أو معينه أدوار في معين لعنصر تكرار- Note That
- Select element then "Edit + Replicate + Story "
- Edit + merge area "to merge two meshes points to avoid warning"
- To Draw "Retaining Wall"….
-رسمها يتمالـ في بمطاعهاBasementللـ النزول ويتمBaseالـ نماط ونختارR.w and S.w, Core
كلها ونعملهاFixedعملها بيتم الـعمدان أماHinged Support.....
- SelectPoint then "Assign + joint/point + Restrain (Support) + Fixed ...
-عمل يتم البالطات فيAssignلطاعات من تعريفه تم ما حسب علي البالطات لمطاعات
......... مسبمة
- S22, S22BALC, S22BATH, S22CORR…
الـ مجموعة نختارmeshesاللي
المطاع باسم نسميه عاوزين
علي ندخل وبعدين المعرف
Assignموضح هو كما
منها نختار نافذة لينا هيظهر
ونضغط المطاع اسمOk
الـ هذه هيتحول وبالتاليmesh
.. المطاع خواص كامل لتاخذ
18. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
بختار اللي النافذة دي
اللي المطاع اسم منها
من عاوزة انا
المعرفة المطاعات
.........مسبما
- Define Diaphragm,,,,,,,,,,,………
1- Define + Diaphragms + Add new Diaphragm + "Select Rigid and write Diaphragm name "
دور لكل نحددDiaphragmالـ ان العلم "مع به خاصDiaph.له يحدد انه كما الدور بتربيط يموم
الـC.gت حتيعمل يتم ... فيه الزلزالية الموة ؤثرDiaphragmهذا باسم ونسميه دور لكل خاص
......الدور
19. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
-الــ اخفاء يتمColumns , Wallsالـ منDisplay optionالـ عمل هيتم اللي الدور اختيار يتم ثم
diaphragm....االول
- Assign + joint/point + Diaphragm + select the Diaphragm name prop. for floor……
- General notes ……………
- For each floor it's diaphragm.
- If there are any wrong in Floor's diaphragm "Assign + joint/point + Diaphragms + None "and
by that Floor diaphragm deleted and Do it again correctly…..
- To show Diaphragm in 3d use "Display option + diaphragm Extend + ok".
32. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
General notes on Static Load CombOooooo…
- α –حدوث أثناء المنشأ فوق الدائمة شبة الرأسية الحية االحمال تأثير يأخذ تراكب معامل هو
أن حيث الزلزال:-( جدول الثامن الباب االحمال لكود "وفما8-7)بند8-7-1
α المنشأ توصيف
0.25 السكنية المنشأت
0.5 : مثل العامة والمباني المنشأت
الرئيسية غير المخاذن–التجارية االسواق–المدارس–المستشفيات–المسارح–
المالكي السيارات جراجات–االستادات–.... العبادة دور
1.0 الصوامع
المياه خزانات
(المكتبات متصلة طويلة لفترات حية بأحمال المحملة المنشات–الرئيسية المخازن-
..... واالوتوبيسات السياحية والعربات الركوب عربات جراجات
- Dynamic Load Combinations
- UDL (Spec x)……………………………………………………………………… 1.12*SD + α*SL + Spec x
- UDL (Spec y)……………………………………………………………………… 1.12*SD + α*SL + Spec y
- UDL (Spec z)……………………………………………………………………… 1.12*SD + α*SL + Spec z
- UD (Spec x)………………………………………………………………………. 0.9*SD + Spec x
- UD (Spec y)………………………………………………………………………. 0.9*SD + Spec y
- UD (Spec z)………………………………………………………………………. 0.9*SD + Spec z
- SDL (Spec x)………………………………………………………….………… SD + 0.75*(SL + Spec x /1.4)
- SDL (Spec y) ………………………………………………….……………….. SD + 0.75*(SL + Spec y /1.4)
- SDL (Spec z) ………………………………….…………………………….…. SD + 0.75*(SL + Spec z /1.4)
- SD (Spec x)………………………………………….…………..……………… SD + Spec x /1.4
- SD (Spec y) ………………………………………………………….……….. SD + Spec y /1.4
- SD (Spec z) ………………………….……………….………………………. SD + Spec z /1.4
33. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
.... بالبرنامج الخاصة Inputs –انته أحنا يكون بكداالـ كل اتمام من ينا
- Ckeck model
-لتصحيح البرنامج مدخالت مع التعامل اثناء لوحدها دور بالطة لكل بس عاملينه كنا أحنا ودا
.........ككل الـموديل علي عملها يتم فسوف هنا ..أما باول أول تظهر أخطاء أي
- Analysis + Check model
في أخطاء اي يظهر ومنها...... الحل في البدأ لبل ونصححها الموديل
- Run model
.. تم لما وفما المنشا حل وتعني معها التعامل يتم أخطاء مفهوش الموديل لو حاله في ودي
- Analysis + Run Analysis,,,,
- Notes…..
-If there Unlogic results after Run there must be Errors in Defination of material and section .
Such as if mode shape has big period "Errors may be in material properities"..
34. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
- First Step after Run is check for Base shear modifier …….
- Display + Show tables+Analysis Results + Building output + Story Shears..
,Then Choose "SelectLoad Cases + and choose EXA,EXB,EYA,EYB..
,Then Choose "SelectLoad Cases/Combinations + and choose" EXA, EYA, Spec x ,Spec y " Then
Press OK….
35. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
Table appear and then "Edit + Copy Entire Table "
And then fly to Exel and press Paste in new Book….
And then choose first row and choose Filter
Story… Story that force act on it. "Basement,Ground ,First ,R1 ,R2 ,…….."
Load… Load Case that you will study."EXA ,EYA ,Spec x ,Spec y "
Loc…Location where the shear force acting."Bottom ,Top "
P… Force acting on floor.
Vx… Shear in X.
Vy… Shear in Y.
- Choose From Load"EXA"and from Loc."Bottom Only"
Then Copy Vx Column and put it in new sheet…..Or in the same sheetbut bottom of Data.
- Choose From Load"Spec x"and from Loc."Bottom Only"
Then Copy Vx Column and put it in new beside the first col.
- Choose From Load"EYA"and from Loc."Bottom Only"
Then Copy Vy Column and put it in new beside the other col.
36. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
- Choose From Load"Spec y "and from Loc."Bottom Only"
Then Copy Vy Column and put it in new beside the other col.
Note… if there is no R.W Base Shear of Spec Compare with Base Shear of EQ in Basement.
And if there is R.W Base Shear of Spec Compare with Base Shear of EQ in the bottom of
Ground.
But there are another solution indicate that we must take average and that we will use...
EQ accurate than Spec ,But Spec distributed the force good than EQ
.EQ االشارة النظرعن بغضال لميمة توصل عشان أعليها الزمـ EQ أللمن Spec -الـ لو يعني
-ص لالحمال المصري للكود وفما تجري التعديالت هذه141بند8-7-3-3-1فمرة8مجموع والخاصة
ان علي تنص االفمية......والتي المص لوي"عن االساسات عند المحسوبة المص لوي مجموع اليمل
85المكافئي االستاتيكي الحمل بالطريمة المحسوبة المص لوي مجموع من %"...
-M =(EQ/Spec)*0.85 ….. then Product M of X in Spectrum fun. X and Y in Y…
And then Rerun ……………
Check Drift
- Display + Show tables+Analysis Results + Displacements+ DisplacementData + Story Drifts.
37. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
,Then Choose "SelectLoad Cases/Combinations + and choose" SDLSpec x ,SDLSpec y
,SDLSpec Z " Then Press OK….
Table appear and then "Edit + Copy Entire Table "
And then fly to Exel and press Paste in new Book, And then choose first row and choose Filter.
Story… Story Where Drift occurs on it. "Basement, Ground, First, R1, R2 , …….."
Item… "Max Drift x, Max Drift y"
Load… Load Case that you will study "SDLSpec x, SDLSpec y, SDLSpec z"
- Choose From Load "SDLSpec x "and from Item." Max Drift x "
Then Copy Drift x Column and put it in new sheet…...
- Choose From Load "SDLSpec y "and from Item."Max Drift x"
Then Copy Drift x Column and put it in sheet…...
- Choose From Load "SDLSpec z "and from Item." Max Drift x "
Then Copy Drift x Column and put it in sheet…...
38. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
- Choose From Load "SDLSpec x "and from Item." Max Drift y"
Then Copy Drift y Column and put it in sheet…...
- Choose From Load "SDLSpec y "and from Item."Max Drift y"
Then Copy Drift y Column and put it in sheet…...
- Choose From Load "SDLSpec z "and from Item." Max Drift y"
Then Copy Drift y Column and put it in sheet…...
Sheeeeeeeeeeeeeeeeeeeeeet Form
- Some Stories in dir. X and with dynamic working combinations. And dir. Y is the same Style.
- Note that "Max DRIFT" that resulted from Etabs is relative drift that mean "Drift/h"…
-المصري االحمال كود في ورد لما ووفما2012البند8-8-3-2"للدور النسبية الحركة "حدود.
… drv =dr * µ < 0.005h
Where . التشغيل حدود لحالة للدور التصميمية النسبية الحركة drv
.ويتولف التصميمي الزمن من ألل للزلزال رجوع زمن االعتبار في يأخذ االزاحة تخفيض معامل
.المنشأ أهمية علي µ
IV III II I األهمية مجموعة
0.5 0.5 0.4 0.4 ( التخفيض معاملµ)
- If drv = 0.4*h*Max. Drift < 0.005*h……Ok Safe
And if not increase S.W. Dim. Or add more S.W. or Core …..and Run again and Check Drift
39. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
- After we finally achieved Etabs checks we must turn to Column design….
-Take Col. Straining action and Design Column in CSI Or PCI program or Exel Sheet…
- Design Core and Shear walls also CSI Or PCI program or Exel Sheet…
- Design Raft either export Base Straining action Slab to Safe Prog. Or take Straining action
of Col. And Core and S.W and fly to Sap Prog. And Design Raft..
Now; Finally We Finished Etabs Learning………………………..
With my Best Wishes,…….
Eng. M.Abd ElTwab Mohamed
Civil Engineer
Fayoum; Egypt
M_g1647@yahoo.com
Civ.M.AbdElTwab@Skype.com
من االنتهاء هللا بفضل ...تم
برنامج مع التعامل كيفية شرح
االيتاب
الدعاء خالص نسألكم
40. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
41. 3D Model on Etabs Program
Eng. Mohamed Abd El Twab Mohamed Civil Engineering
Design&3D Model Analysis
Etabs Program
Twab Mohamed-Eng. M. Abd ElPrep. by
Civil Engineer
Fayoum, Egypt
2014 – 2015