Damage prediction of long-period structures during subduction earthquakes Part2：Prediction of damage to high-rise buildings in the Osaka basin in future Nankai earthquakes

摘要：

High-rise buildings in mega-cities such as Osaka and Nagoya in Japan have a high probability of damage due to strong long-period ground motions from a great subduction earthquake. We predict the damage potential of steel and reinforced concrete high-rise buildings and construct damage prediction maps for the Osaka basin using the long-period ground motions of future Nankai earthquakes predicted in our other paper (Part 1). In this study, a one mass model (an analytical model for the equivalent mass of one degree of freedom) is adopted due to the need for a great deal of earthquake response analysis. We have confirmed through both earthquake observation and analytical results regarding high-rise buildings that the displacement and earthquake input energy of high-rise buildings subjected to long-period ground motion can be approximately estimated by this simple model. Using damage prediction maps, we point out that the dynamic response of high-rise buildings exceeds the present seismic design criteria in wide areas inside the Osaka basin.

关键词： Long-period ground motion Nankai earthquake Osaka basin High-rise building One mass model Damage prediction map

作者: Yoshihisa NAKAGAWA Katsuhiro KAMAE Hidenori KAWABE Kojiro IRIKURA

作者单位: Yasui Architects & Engineers Inc. ,Osaka, Japan Professor, Research Reactor Institute, Kyoto University ,Osaka, Japan Assistant Professor, Research Reactor Institute, Kyoto University ,Osaka, Japan Professor, Disaster Prevention Research Center, Aichi Institute of Technology ,Toyota, Japan

会议类型: 国际会议

会议名称: 14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）