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中国东部和西部地区水平向基岩加速度反应谱衰减关系
中国东部和西部地区水平向基岩加速度反应谱衰减关系
俞言祥* 汪素云
中国地震局地球物理研究所,北京100081
 [收稿日期]: 2006-06-12
摘要

把美国西部地区作为参考区,采用我国地震动参数区划图工作时所使用的美国西部地区强震资料建立参考区水平向基岩短周期加速度反应谱衰减关系;采用美国南加州地区数字宽频带记录建立参考区水平向基岩长周期加速度反应谱衰减关系。与由丰富的等震线资料统计得出的我国东部地区和西部地区的地震烈度衰减关系一起,用转换方法分别得到了我国东部和西部地区水平向基岩加速度反应谱衰减关系。对该衰减关系在重大工程地震安全性评价工作中的应用提出了建议。



Attenuation Relations for Horizontal Peak Ground Acceleration and Response Spectrum in Eastern and Western China
Yu Yanxiang* and Wang Suyun
Institute of Geophysics, China Earthquake Administration, Beijing 100081, China
Abstract

By taking the western part of North America as the reference region, the attenuation relations for horizontal peak ground acceleration and response spectrum in eastern and western China are developed using transform method. The attenuation relations for horizontal peak ground acceleration and short-period response spectrum for the western part of North America are derived based on the strong motion database, while the relations for long-period response spectrum are based on digital broad-band records. The seismic intensity attenuation relations in eastern and western China are established by regression analysis on isoseismal data. Some issues associated with the application of the attenuation relations are discussed.



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中国东部和西部地区水平向基岩加速度反应谱衰减关系
俞言祥* 汪素云
《震灾防御技术》, DOI:10.11899/zzfy20060304