张弦梁结构的地震响应分析

英文篇名：Seismic response analysis of beam string structure
中文刊名：建筑结构
英文刊名：Building Structure
作者：田向阳 ; 张勇
英文作者：Tian Xiangyang1 ; Zhang Yong2 (1 Guangzhou Municipal Engineering Design & Research Institute ; Guangzhou 510060 ; China ; 2 School of Civil Engineering ; Beijing Jiaotong University ; Beijing 100044 ; China)
中文关键词：张弦梁结构 ; 时程分析 ; 谱分析 ; 抗震设计
英文关键词：beam string structure ; time history analysis ; spectrum analysis ; seismic design
出版日期：2011-04-15
机构：广州市市政工程设计研究院;北京交通大学土木建筑工程学院;
年：2011
期：S1
出版单位：建筑结构

摘要

采用由梁单元、杆单元和索单元组成的混合有限元法对简支和两端固定铰支张弦梁结构进行了地震响应分析,亦即按照我国抗震规范GB50011—2010的规定,确定地震加速度时程曲线和地震谱的取用,并导入ANSYS中,对张弦梁结构的地震响应进行了时程分析和谱分析,比较了撑杆数目、预应力值和矢跨比等结构参数对结构地震响应的影响,从而给出了结构抗震设计建议。
Based on finite element theory,beam string structure(BSS) was modeled by beam,truss and cable elements,and seismic response of BSS was investigated with ANSYS.According to Chinese seismic design code GB50011—2010,accelerogram and acceleration spectrum of ground motion were determined.The time history analysis and response spectrum analysis of BSS were conducted by introducing acceleration history curve and acceleration spectrum into ANSYS.Through multi-parameter analyses,the effects of such factors as strut number,prestress and ratio of rise to span etc.on seismic response of BSS in two kinds of supporting conditions were made clear,and some useful suggestions to seismic design were drawn.

引文

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