Research on the random seismic response analysis for multi- and large-span structures to multi-support excitations

被引：9
|
作者：
Zhao Bo [1 ]
Wang Yuanqing [2 ]
Chen Zhihua [1 ]
Shi Yongjiu [2 ]
Jiang Yang [2 ]
Wang Yihong [1 ]
机构：
[1] Tianjin Univ, Sch Civil Engn, Tianjin 300072, Peoples R China
[2] Tsinghua Univ, Dept Civil Engn, Key Lab Struct Engn & Vibrat, Educ Minist, Beijing 100084, Peoples R China
来源：
EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION | 2015年 / 14卷 / 03期
基金：
中国国家自然科学基金;
关键词：
random seismic response; multi-support excitations; large-span structures; wave-passage frequency; coherence function; BRIDGES;
D O I：
10.1007/s11803-015-0042-1
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The pseudo excitation method (PEM) has been improved into a more practical form, on which the analytic formulae of seismic response power spectral density (PSD) of simplified large-span structural models have been derived. The analytic formulae and numerical computing results of seismic response PSD have been derived to study the mechanism of multi-support excitation effects, such as the wave-passage effect and incoherence effect, for the seismic response of multiand large-span structures. By using a multi-span truss as an example, the influence of multi-support excitation effects on the seismic response of such structures is studied.
引用
收藏
页码：527 / 538
页数：12
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