IDENTIFICATION ON SUDDEN DAMAGE OF BUILDING STRUCTURES BY USING CONTINUOUS WAVELET TRANSFORMS

摘要：

The sudden change of structural stiffness such as weld fracture,column buckling,and brace breakage will 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 continuous wavelet transform is developed and implemented in this study to detect the sudden damage event of a multi-story building structure. The Marr wavelet is utilized for examining 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 external excitations and noise pollution.

关键词： Building structure Acceleration response Continuous wavelet transform Damage detection

作者: Jian-Ping Wang Jin Zheng Bo Chen Su-Ming Sun

作者单位: College of Civil Engineering,Guizhou University for Nationalities,Guiyang 550025,P.R. China Design Institute of Wuhan University of Technology,Wuhan 430070,P.R. China Key Laboratory of Roadway Bridge and Structural Engineering,Wuhan University of Technology,Wuhan 430 Briline Corporation,Tokyo,Japan

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 1392-1397

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）