This document summarizes the objectives and content of a course on dynamics of structures. The course aims to teach time-series simulation of elastic and inelastic dynamic systems, modal idealization and reduction, response spectra, and differences in demand parameters for elastic vs inelastic systems. It describes idealizing a structure as a linear elastic or bilinear inelastic oscillator, scaling ground motions, simulating the structural response to 12 ground motions, and analyzing trends in base shear and ductility demand with increasing peak ground acceleration. The document concludes the inelastic oscillator model better captures rising demands with PGA.
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.
This publication provides a concise compilation of selected rules in the Eurocode 8 Part 1 & 3, together with relevant Cyprus National Annex, that relate to the seismic design of common forms of concrete building structure in the South Europe. Rules from EN 1998-3 for global analysis, type of analysis and verification checks are presented. Detail design check rules for concrete beam, column and shear wall, from EN 1998-3 are also presented. This guide covers the assessment of orthodox members in concrete frames. It does not cover design rules for steel frames. Certain practical limitations are given to the scope.
Due to time constraints and knowledge, I may not be able to address the whole issues.
Please send me your suggestions for improvement. Anyone interested to share his/her knowledge or willing to contribute either totally a new section about Eurocode 8-3 or within this section is encouraged.
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.
This publication provides a concise compilation of selected rules in the Eurocode 8 Part 1 & 3, together with relevant Cyprus National Annex, that relate to the seismic design of common forms of concrete building structure in the South Europe. Rules from EN 1998-3 for global analysis, type of analysis and verification checks are presented. Detail design check rules for concrete beam, column and shear wall, from EN 1998-3 are also presented. This guide covers the assessment of orthodox members in concrete frames. It does not cover design rules for steel frames. Certain practical limitations are given to the scope.
Due to time constraints and knowledge, I may not be able to address the whole issues.
Please send me your suggestions for improvement. Anyone interested to share his/her knowledge or willing to contribute either totally a new section about Eurocode 8-3 or within this section is encouraged.
PERFORMANCE BASED ANALYSIS OF VERTICALLY IRREGULAR STRUCTURE UNDER VARIOUS SE...Ijripublishers Ijri
In the recent years a lot of attention has been given to the earthquake analysis of structure it is one of the most devastating
natural calamity and which causes severe damage not only to the properties but also to the lives. This is the
reason there has been a lot of focus on the structures to be earthquake resistant. Buildings get damaged mostly due
to the earthquake ground motions. In an earthquake, the building base experiences high frequency movements, which
results in the inertial force on the building and its components and this problem gets worse when a structure is irregular
in shape, size etc,. Therefore, there is a lot to work on the seismic behavior of the irregular building which might not
respond the way regular building does. It makes the irregular building quite more complex and unpredictable during
the course of an earthquake.
Kansas City Summer Transportation Institute (KCSTI) program is a four week program by the Kansas City Summer Transportation Institute (STI)to provide an exciting opportunity for high school students in the Greater Kansas City area to learn about careers in transportation.
Poster Presentation at Missouri Concrete conferenceGunjan Shetye
'Comparison of performance of High-strength to Normal-strength Reinforced Concrete Slab under Blast Loading using Experiments and Finite Element Modeling' is a research study conducted at University of Missouri - Kansas city
PERFORMANCE BASED ANALYSIS OF VERTICALLY IRREGULAR STRUCTURE UNDER VARIOUS SE...Ijripublishers Ijri
In the recent years a lot of attention has been given to the earthquake analysis of structure it is one of the most devastating
natural calamity and which causes severe damage not only to the properties but also to the lives. This is the
reason there has been a lot of focus on the structures to be earthquake resistant. Buildings get damaged mostly due
to the earthquake ground motions. In an earthquake, the building base experiences high frequency movements, which
results in the inertial force on the building and its components and this problem gets worse when a structure is irregular
in shape, size etc,. Therefore, there is a lot to work on the seismic behavior of the irregular building which might not
respond the way regular building does. It makes the irregular building quite more complex and unpredictable during
the course of an earthquake.
Kansas City Summer Transportation Institute (KCSTI) program is a four week program by the Kansas City Summer Transportation Institute (STI)to provide an exciting opportunity for high school students in the Greater Kansas City area to learn about careers in transportation.
Poster Presentation at Missouri Concrete conferenceGunjan Shetye
'Comparison of performance of High-strength to Normal-strength Reinforced Concrete Slab under Blast Loading using Experiments and Finite Element Modeling' is a research study conducted at University of Missouri - Kansas city
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the water depth and environment conditions are very important, this paper will present a general overview of these aspects. This paper reviews the fundamentals
behind all types of offshore structures (fixed or floating) and, in the case of fixed platforms, will cover applications of these principles. The overall objective is to provide a general understanding of different stages of design, construction, loadout, transportation and installation of offshore platforms. Finally, for different sea-water
depths, in which the Cyprus platforms are intended to be installed, suitable kinds of offshore platforms are proposed.
Final Year Project Report on Structural Analysis and Design of Multistorey RCC Building for Earthquake Resistant Design as per IS Codes. - Khwopa College of Engineering - IOE, Tribhuvan university - Civil Engineering Final Report - Bachelor Level Project
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Baf Shaheen College (B+12) ETABS Dynamic Analysis.pptx
Dynamics Project
1. Presented to Dr. ZhiQiang Chen for CIV-ENGR-
5501DS – Dynamics of structures
Spring 2011
Gunjan Shetye
UMKC
2. Objectives
Learn to do basic time-series simulation for both elastic
and inelastic dynamic systems.
Understand the basic concept of modal idealization and
modal reduction.
Be familiar with the basic characteristics of response
spectra and the construction method.
Understand the difference between demand parameters
resulting from elastic and inelastic systems.
Enhance knowledge of Matlab[1] programming for pre- and
post-processing of simulation results
3.
4. Structure Idealization
The properties for the SDOF oscillator are:
Linear Elastic Oscillator
Mass of building: m = 800 kips / g * 0.95 = 760 * 103 lb.
Lateral stiffness: K = 800 kips / ft
Structure height: h = 0.75 * 36’ = 27’
Damping ratio: ᶓ 5%=
Bilinear Inelastic Oscillator
Reduced lateral stiffness after yielding αK = 0.025 * K
Structural displacement at yielding: Xy = 6.5 inch (2% of 27’)
Maximum ductility: µmax = 5 (i.e. the peak deformation of the structure allowed
to be 5 * 6.5” = 32.5” or 10% of 26’). This means that if a transient ductility
number is larger than 5, significant damage (leading to partial or full collapse)
will happen.
7. Ground Motion Scaling
Scaling of plots to match DBE, Sa (T1) =0.70g
Scale factor for most intensively scaled ground motion (The ground motion with
maximum PGA) =14.0135
12. For inelastic oscillator the trend suggests that as PGA increases Base shear demand
increases but the same is not true in case of elastic oscillator.
13. For inelastic oscillator the trend suggests that as PGA increases Ductility
demand increases but the same is not true in case of elastic oscillator.
14. Conclusion
The trends in base shear and ductility demand with
respect to PGA is more realistic in case of inelastic
oscillator where the demand is rising with Peak
ground acceleration of the motion.
However the comparison of PGA to spectral
displacement demand was not carried out as the
Spectral demand were plotted for the same scaled
motion Sa(T1=1.08). and thus the spectral demand
remained constant for all ground motions.
15. References-
1. Matlab , a technical-computing language software
product of MathWorks Inc.
2. SAP2000 Computers and structures Inc., Berkeley
3.Text book ‘ Dynamics of structures’, Author Anil
Chopra.
![Objectives
Learn to do basic time-series simulation for both elastic
and inelastic dynamic systems.
Understand the basic concept of modal idealization and
modal reduction.
Be familiar with the basic characteristics of response
spectra and the construction method.
Understand the difference between demand parameters
resulting from elastic and inelastic systems.
Enhance knowledge of Matlab[1] programming for pre- and
post-processing of simulation results](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)