Alternative approach to compute shear amplification in high-rise reinforced concrete core wall buildings using uncoupled modal response history analysis procedure

2016 ◽  
Vol 26 (4) ◽  
pp. e1314 ◽  
Author(s):  
Tahir Mehmood ◽  
Pennung Warnitchai ◽  
Munir Ahmed ◽  
M.Irshad Qureshi
Keyword(s):  
Reinforced Concrete ◽  
Analysis Procedure ◽  
Concrete Core ◽  
High Rise ◽  
Modal Response ◽  
History Analysis ◽  
Alternative Approach ◽  
Response History Analysis

Seismic Performance Analysis of Steel Reinforced Concrete Frame-Concrete Core Wall Structure

2011 ◽  
Vol 243-249 ◽  
pp. 740-745 ◽  
Author(s):  
Qing Ning Li ◽  
Qing Mei Liu ◽  
Lin Zhao
Keyword(s):  
Reinforced Concrete ◽  
Time History ◽  
Wall Structure ◽  
Reinforced Concrete Frame ◽  
Concrete Core ◽  
Steel Reinforced Concrete ◽  
Concrete Frame ◽  
High Rise ◽  
History Analysis ◽  
Rare Earthquake

A steel reinforced concrete frame-concrete core wall structure is taken as the research object in this paper. The whole space finite element models are established by software ETABS, modal analysis, response spectrum method and elastic time-history analysis are conducted. And static elastio-plastic time history analysis of the high-rise structure is conducted by software MIDAS/GEN. Seismic response of the high-rise structure is analyzed under medium earthquake and rare earthquake , elastic deformation is calculated under conventional earthquake and elastic-plastic deformation is calculated under rare earthquake. The results show that the structure can meet the requirements of no-damage under light earthquake, repairable under medium earthquake and no-collapse under strong earthquake.

Modal Response History Analysis

Seismic Loads ◽  
2015 ◽  
pp. 165-179
Author(s):  
Finley A. Charney
Keyword(s):  
Modal Response ◽  
History Analysis ◽  
Response History Analysis

Two-degree-of-freedom modal response history analysis of buildings with specific vertical irregularities

2019 ◽  
Vol 184 ◽  
pp. 505-523
Author(s):  
Jui-Liang Lin ◽  
Chih-Chia Tsaur ◽  
Keh-Chyuan Tsai
Keyword(s):  
Degree Of Freedom ◽  
Modal Response ◽  
History Analysis ◽  
Response History Analysis ◽  
Two Degree Of Freedom

Numerical evaluations of a novel membrane element in response history analysis of reinforced concrete shear walls

2020 ◽  
Vol 220 ◽  
pp. 110760
Author(s):  
T.L. Chang ◽  
C.-L. Lee ◽  
A.J. Carr ◽  
R.P. Dhakal
Keyword(s):  
Reinforced Concrete ◽  
Shear Walls ◽  
Membrane Element ◽  
History Analysis ◽  
Response History Analysis

Estimation of Floor Response Spectra Using the Uncoupled Modal Response History Analysis

2016 ◽  
Vol 847 ◽  
pp. 266-272
Author(s):  
Andrea Lucchini ◽  
Paolo Franchin ◽  
Fabrizio Mollaioli
Keyword(s):  
Earthquake Engineering ◽  
Specific Capacity ◽  
Response Spectra ◽  
Seismic Demand ◽  
Reinforced Concrete Frame ◽  
Modal Response ◽  
History Analysis ◽  
Demand Models ◽  
Numerical Effort ◽  
Response History Analysis

In performance-based earthquake engineering, probabilistic seismic demand models are usually developed by using methods which need a large number of nonlinear dynamic analyses to be run. In order to reduce the numerical effort, simplified methodologies of analysis have been proposed. Objective of the present study is to use the uncoupled modal response history analysis for the estimation of acceleration floor spectra, engineering demand parameters commonly used for measuring seismic demand in acceleration-sensitive non-structural elements. The procedure is evaluated for a 6-story reinforced concrete frame case study, designed to be representative of an existing structure lacking in specific capacity design rules.

Research on Seismic Performance Objectives of High-Rise Diagrid Tube Structures

2010 ◽  
Vol 163-167 ◽  
pp. 1100-1106
Author(s):  
Jun Teng ◽  
Wei Liang Guo ◽  
Bai Sheng Rong ◽  
Zuo Hua Li ◽  
Zhi Jun Dong
Keyword(s):  
Seismic Performance ◽  
Design Method ◽  
Time History ◽  
Lateral Stiffness ◽  
Related Factors ◽  
Concrete Core ◽  
Core Tube ◽  
Plastic Energy ◽  
High Rise ◽  
History Analysis

Diagrid tube structures have advantages on constructing high-rise buildings for its great lateral stiffness, but its seismic design methodology researches are limited. The two-stage design method in Chinese code is not specific enough for the seismic fortification objectives of this kind of structures. It is necessary to propose some specific seismic performance objectives for the key components. Typical CFST diagrid tube-concrete core tube structures are studied by dynamic elastic-plastic time-history analysis using Perform-3D program. The structure plasticity developing process is summarized and the distribution characteristics of seismic fortification lines between tubes are discussed. The influences of main structure lateral stiffness related factors on the plasticity developing process are researched. The key components of structure lateral stiffness and plastic energy dissipation are studied. The seismic performance objectives of the key components are proposed for the three-level seismic fortification objectives.

Study on Reasonable Mode Number of Composite Frame and Reinforced Concrete Core Hybrid Structures in High-Rise Buildings

2011 ◽  
Vol 368-373 ◽  
pp. 285-288
Author(s):  
Shu Yun Zhang ◽  
Guo Liang Bai ◽  
Zhi Gang Gao
Keyword(s):  
Reinforced Concrete ◽  
Mode Shape ◽  
Natural Vibration ◽  
Response Spectrum ◽  
Hybrid Structures ◽  
Response Spectrum Method ◽  
Concrete Core ◽  
High Rise ◽  
Spectrum Method ◽  
Composite Frame

For seismic design of composite frame and reinforced concrete core hybrid structures in high-rise buildings, the response spectrum method is influenced to a large extent by mode combination rules and number of combined modes. The dynamic characteristics of composite frame and concrete core hybrid structures were studied through modal analysis, natural vibration periods and mode shape of hybrid structures had calculated and analyzed, the results show that the natural vibration frequencies are near, the complete quadratic combination of mode combination rule was recommended for avoiding higher order mode shape lose in the response spectrum method. The reasonable number of combined modes for response spectrum method were studied by truncation error analysis, it is proposed that more than 20 modes are combined. The results of the time history analysis und The three dimensional finite element er three earthquake waves were compared with results of response spectrum, indicating that the maximum response of hybrid structures can be obtained under reasonable mode number.

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