摘要
本文以笔者公司承接的某大跨空间结构为项目背景,首先通过弹性时程分析和反应谱分析筛选确定了符合抗震规范要求的地震波组合,并将上述地震波调整应用到了随后的弹塑性时程分析中,通过观察该结构在不同罕遇地震波下的三维动力响应,掌握了该类典型椭球形空间结构的整体屈曲机制、控制点振动幅值、塑性铰滞回性能等各项动力指标,并对原设计提出了相应的意见和建议。
Based on a large-span spatial structure project constructed by JSBG recently,this paper primarily selects adequate earthquake waves combination according to the Chinese code suggestion via elastic time-history analysis and response spectrum analysis.Those earthquake waves were modified and applied in subsequent elastic-plastic timehistory analysis.This typical elliptic space structures dynamic features such as overall buckling mechanism、vibration amplitude、hysteretic behavior were well studied,suggestions towards the original design were given at the end.
作者
徐立丰
XU Lifeng(Zhejiang Jinggong Steel Building Group Co.,Ltd,Shaoxing 312030,China)
出处
《四川建材》
2018年第7期55-57,共3页
Sichuan Building Materials
关键词
椭球形空间结构
弹塑性时程
选波
屈曲机制
Elliptic space structure
Elastic - plastic time - history analysis
earthquake wave selection
buckling mechanism
