CUMULATIVE DAMAGE OF HIGH-RISE BUILDINGS DURING THE IN-SERVICE PERIOD IN OSAKA, JAPAN
The objective of the research is to characterize the remaining performance of existing buildings in terms of the cumulative damage, such as the cumulative plastic ductility and cumulative residual deformation, of the buildings during the in-service period. We performed the response analysis using simulated ground motion records for the scenario earthquakes and/or observed ground motions records. Analysis models are practical models for the high-rise buildings. The cumulative damage of each building is evaluated from the result of the analyses. Our conclusions are; 1) the characteristics of input motions and building responses can be adequately categorized by using a concept of impulse index corresponding to the ratio of the maximum instantaneous input energy to total input energy. 2) the cumulative residual drift and plastic displacement during the in-service period is not so large, whereas the maximum shear story drift angle may equal or larger than 0.02.
Cumulative damage In-service period Nonlinear response analysis Impulse index
Takeshi Morii Yasuhiro Hayashi Yoshiaki Kumagai Yoshihiro Ohnishi
Dept. of Architecture and Architectural Eng., Kyoto Univ., Kyoto, Japan Dept. of Architecture and Architectural Eng., Kyoto Univ., Kyoto,Japan Obayashi Corporation, Tokyo, Japan Geo-Research Institute, Osaka, Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）