AN ASSESSMENT METHOD OF HIGH-RISE STRUCTURAL EARTHQUAKE DAMAGE USING MEASURED FLOOR ACCELERATION MESSAGES
It is more important to assess the postearthquake damage of the high-rise structures. But current researches on post-earthquake damage assessment of complex structures are inadequate, and only slight damage in elastic stage can be evaluated. Wavelet transform is sensitive to the change of the response signal, and this paper takes this advantage. First, wavelet package decomposition is done to the monitoring acceleration time history signals of floors, and then the change rates of the band energy are calculated and the relationships between the change rate and the actual damages is analyzed. Based on the analysis results the damage degree is scored. Second, the fuzzy mathematics method is used to calculate the damage degree membership degree of the floors. Finally, the fuzzy comprehensive evaluation method is used to score damage degree of every stories and whole structure. The verification results of a shaking table test show that this method using measured floor acceleration message can effectively assess the damage extent of the high-rise structures under strong earthquake excitations.
Chunkai He Jun Teng Zuohua Li
Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 518055,P.R.China School of Civil Engineering,Dalian University of Technology,Dalian 116024,P.R.China
国际会议
厦门
英文
671-678
2011-10-28（万方平台首次上网日期，不代表论文的发表时间）