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

页码：527 / 538

页数：12

共 20 条

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