Evaluation on Earthquake-Induced Sudden Damage of Multistory Building Structures by Using Wavelet Transform

摘要：

The degradation of civil engineering structures due to intensive earthquake may lead to a sudden loss of structural stiffness in a structure and cause a discontinuity in acceleration response time histories recorded in the vicinity of damage location at damage time instant. A damage detection approach based on wavelet transform is developed and implemented in this paper to detect the damage time instant and location of a multistory building structure due to sudden stiffness damage. Three mother wavelets with different vanishing moments and supporting length in the time domain are utilized for comparing the detection performance on sudden damage events. To examine the feasibility of the wavelet-based detection approach, parameter studies are carried out to investigate the detection quality for different damage severities.

关键词： Sudden damage Signal discontinuity Damage indez Wavelet transform Damage detection

作者: Jianping Wang Bo Chen

作者单位: Guizhou University for Nationalities, Guiyang, China Key laboratory of Roadway Bridge and Structural Engineering, Wuhan University of Technology, Wuhan,C

会议类型: 国际会议

会议名称: The First Anniversary of Wenchuan Earthquake(纪念汶川地震一周年国际学术会议)

会议地点: 成都

会议语种:英文

页码: 237-242

在线出版日期: 2009-05-10（万方平台首次上网日期，不代表论文的发表时间）