摘要
为了改善结构抗震性能,拟对高烈度区某中学框架结构食堂采用黏滞阻尼减震方案,运用ETABS对原结构和减震结构进行多遇地震下的弹性时程分析,对比减震前后层间剪力和位移的变化,以及阻尼器的耗能情况。接着采用PERFORM-3D对结构进行罕遇地震作用下的弹塑性时程分析,研究结构变形、构件性能以及阻尼器的耗能能力。结果表明:在安装黏滞阻尼器后,结构在小震、大震下的各项性能指标均能满足规范要求,且黏滞阻尼器能够正常工作并发挥耗能作用,使结构抗震性能得到了较大提升。
To improve structural seismic performance,viscous dampers is adopted in a middle school frame structure canteen in high intensity area.ETABS is used to analyze the elastic time history of the original structure and the energy dissipation structure under frequent earthquakes.The shear forces and displacement changes between stories are analyzed before and after damper equipment,and the energy consumption of dampers is analyzed too.PERFORM-3 D,another software,is used to analyze the elastic-plastic time history response of the structure under rarely occurred earthquake,and the structural deformation,component performance and energy dissipation capacity of dampers are analyzed.The results show that the seismic performance of the structure equipped with viscous dampers can satisfy the requirements of the code under frequently occurred earthquake and strong earthquake,and the viscous damper can work normally and dissipate energy as expected,and the structural seismic performance is greatly improved by equipping viscous dampers.
作者
胡庆生
仝强
常军
刘卓
Hu Qingsheng;Tong Qiang;Chang Jun;Liu Zhuo(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China;Shanghai Dynamic-Lab Architectural Technology Co.Ltd,Shanghai 200093,China)
出处
《建筑结构》
CSCD
北大核心
2019年第S02期448-453,共6页
Building Structure
基金
苏州科技大学研究生科研与创新实践计划项目(SKCX17_020)
江苏省自然科学基金资助项目(BK20141180)
江苏省研究生创新实践计划项目(SJCX18_0877).
关键词
黏滞阻尼器
框架结构
时程分析
消能减震
viscous damper
frame structure
time history analysis
energy dissipation
