THE DEVELOPMENT OF ATTENUATION RELATIONS IN THE ROCK SITES FOR PERIODS (T=0.04～10s,ξ=0.005, 0.02, 0.07, 0.1 & 0.2) BASED ON NGA DATABASE

摘要：

The design spectrum with different damping ratio is in general calculated from the spectral values of damping ratio 0.05 using the empirical modification relations. With the large-scale and important structures, such as nuclear plant, being built in large number, the current aseismic Codes cannot address the requirements in the multi-damping and the long-period aspects. The large amount of recordings in the US NGA project makes it possible for us to study the multi-damping characteristics of acceleration response spectrum in the period range up to 10s. By the statistical analysis to the 260 recordings selected from the NGA database, the spectral acceleration attenuation relationships in the period range 0.04-10s are proposed for the damping ratios 0.005,0.02, 0.07, 0.1, 0.2.

关键词： attenuation relationship different damping ratio NGA (Next Generation Attenuation) database

作者: Yong Chen Yan-Xiang Yu

作者单位: Ph.D.,Institute of Geophysics,China Earthquake Administration,Beijing.China Professor,Institute of Geophysics,China Earthquake Administration,Beijing.China

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）