典型文献
Numerical study of a multiple post-tensioned rocking wall-frame system for seismic resilient precast concrete buildings
文献摘要：
A multiple rocking wall-frame(MRWF)system,in which the wall panels are directly connected to the adjacent beams and foundation is presented herein.In the MRWF system,the unbonded post-tensioned(PT)tendons are used to promote the self-centering ability,and O-shaped steel dampers are applied to enhance the energy dissipation capacity and reparability of the structure.First,analytical equations are proposed to determine the behavior of the O-shaped dampers.Then,the MRWF system is numerically evaluated for five different models consisting of rocking walls with varying numbers and arrangements while keeping the total effective width of wall panels constant.The numerical results show that with an increase in the number of wall panels and a decrease in the wall width,the hysteretic behavior of the MRWF system tends to the ideal flag-shaped pattern,resulting in little damage to the beams,insignificant strain in the wall toe,negligible residual drifts and damage index of less than 0.2 under severe earthquakes.In contrast,the conventional model demonstrates extensive damage to the structural elements due to undesirable wall-to-frame interaction,which leads to a damage index of 0.78 and residual drifts of 0.42％under seismic loads.
文献关键词：
中图分类号：
作者姓名：
Afshin Naserpour;Mojtaba Fathi
作者机构：
Department of Civil Engineering,Engineering Faculty,Razi University,Kermanshah 6714665989,Iran
文献出处：
引用格式：
[1]Afshin Naserpour;Mojtaba Fathi-.Numerical study of a multiple post-tensioned rocking wall-frame system for seismic resilient precast concrete buildings)[J].地震工程与工程振动（英文版）,2022(02):377-393
A类：
MRWF,reparability
B类：
Numerical,study,multiple,post,tensioned,rocking,frame,system,seismic,resilient,precast,concrete,buildings,which,panels,are,directly,connected,adjacent,beams,foundation,presented,herein,In,unbonded,PT,tendons,used,promote,self,centering,shaped,steel,dampers,applied,enhance,energy,dissipation,capacity,structure,First,analytical,equations,proposed,determine,behavior,Then,numerically,evaluated,five,different,models,consisting,walls,varying,numbers,arrangements,while,keeping,total,effective,width,constant,results,show,that,increase,decrease,hysteretic,tends,ideal,flag,pattern,resulting,little,damage,insignificant,strain,toe,negligible,residual,drifts,less,than,under,severe,earthquakes,contrast,conventional,demonstrates,extensive,structural,elements,due,undesirable,interaction,leads,loads
AB值：
0.554192
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