连体结构行波效应的反应谱分析方法  

Seismic Response Spectrum Method Based Wave-passage Effects Analysis of the Double-Tower Structure

作　　者：王克峰[1] 李静斌[2] 丁洁民[1] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]郑州大学土木工程学院,河南郑州450002

出　　处：《郑州大学学报（工学版）》2006年第1期19-23,共5页Journal of Zhengzhou University（Engineering Science）

基　　金：建设部科技攻关资助项目(01-2-009)

摘　　要：从振型分解反应谱方法的原理出发,提出了一种考虑双塔连体结构行波效应影响的反应谱简化分析方法,其目的旨在通过对振型分解反应谱方法中参与系数的调整,在分析中合理的引入行波效应的影响.根据提出的方法,在算例分析中对比了反应谱简化分析与直接动力分析,从所得出的结果可以证明,作者所建立的简化谱该方法是一种行之有效的分析手段.Double-tower structure, as a kind of high-rise buildings owned much aesthetic approval, is typically sensitive to the wave - passage effects. It is especially the case when it comes to the long- span ones. Confined by the limits, which is based on the no spatially varying ground motion supposition, the seismic response spectrum method can hardly analyze the spatial effect enlarged by the span parameters. Errors, then, will be inevitable results. More often than not, the errors seriously undermine the safety and reliability of the seismic spectrum method. On the other hand, when the errors are unacceptable, the major and the only method engineers can use is the time history method. But, when it comes to the practicability and reliability, the perfect theory is merely a compromise tool to check the trends of the wave-passage effects and can hardly sign. Based on the analysis above, a convenient and reliable give the meaningful results to direct the structure demethod, to solve the wave-passage effects to the double- tower structures is necessary. Accordingly, a seismic response spectrum method based wave - passage analysis of the double- tower structures is recommended. And the validity of the method is nroved bv the followine examnle.

关 键 词：行波效应 振型分解反应谱法 参与系数 

分 类 号：TU318.4[建筑科学—结构工程]