西南交通大学学报 2007, 42(4) 389-394 DOI:     ISSN: 0258-2724 CN: 51-1277/U

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本文关键词相关文章
高层结构
地震作用
损伤分析
频率
模型试验
本文作者相关文章
施卫星
汪洋
刘成清
PubMed
Article by SHI Weixing
Article by WANG Yang
Article by LIU Chengqing

基于频率测量的高层建筑地震作用损伤分析

施卫星, 汪洋, 刘成清

同济大学结构工程与防灾研究所, 上海, 200092

摘要

为寻找一种更有效的地震引起的高层建筑损伤识别方法,在前人研究的基础上,根据地震作用下高层建筑结构自振频率的变化规律,提出了一种新的损伤模型.该损伤模型考虑了高阶振型、振型参与系数、结构形式和结构自振频率测试方法等影响因素.利用所提出的损伤模型对2个高层混凝土结构模型模拟地震振动台试验数据进行了分析,结果表明,该损伤模型与试验现象基本吻合.

关键词 高层结构   地震作用   损伤分析   频率   模型试验  

Damage Analysis of High-Rise Building under Seismic Load Based on Frequency Measurement

SHI Weixing, WANG Yang, LIU Chengqing

Research Institute of Structural Eng.and Disaster Reduction, Tongji University, Shanghai 200092, China

Abstract:

Based on the current methods of damage detection,a new detection model was proposed in order to search a more efficient detection method for reinforced concrete high-rise building damage induced by earthquake.This model is based on the regularity of change in the natural frequency of high-rise buildings,and the high order modes,mode participation coefficient and measure method of natural frequency,together with the type of structures,are taken into account in the model.The shaking test results for the two models of reinforced concrete high-rise buildings show that the damage detection results based on the proposed model are close to the test results.

Keywords: high-rise building   seismic load   damage analysis   frequency   model test  
收稿日期 2006-10-09 修回日期  网络版发布日期  
DOI:
基金项目:

通讯作者:
作者简介: 施卫星(1962- ),男,教授,博士,博士生导师,研究方向为工程结构抗震,电话:021-65986103,E-mail:swxtgk@126.sh.cn

参考文献:
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[3] FRISWELLM I,PENNY E T.The practical limits of damage detection and location using vibration data[C]//11th VPI&SU Symposium on Structural Dynamics and Control.Blacksburg:VPI&SU (Virginia Polytechnic Institute & State University),1997:31-40.
[4] YOUNG-JI P,ALFREDO H S A,YI K W.Seismic damage analysis of reinforced concrete building[J].Journal of the Structural Division,ASCE,1985,111:740-757.
[5] 吴波,欧进萍.钢筋混凝土结构在主余震作用下的反应与损伤分析[J].建筑结构学报,1993,14(5):45-53.WU Bo,OU Jinping.Reaction and damage analysis of reinforced concrete structures under earthquake series[J].Journal of Building Structures,1993,14 (5):45-53.
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