地震动参数区划图场地条件影响调整  

Adjustment of seismic ground motion parameters considering site effects in seismic zonation map

作　　者：李小军[1,2] 

机构地区：[1]中国地震局地球物理研究所,北京100081 [2]北京工业大学建筑工程学院,北京100124

出　　处：《岩土工程学报》2013年第S2期21-29,共9页Chinese Journal of Geotechnical Engineering

基　　金：国家重点基础研究发展计划项目(2011CB013601);国家自然科学基金重大研究计划项目(91215301)

摘　　要：分析了工程设计地震动参数确定中场地条件对地震动影响考虑的要求和主要研究成果,开展了我国现行规范及国外规范的设计地震动场地影响考虑方法的比较。结合中国地震动参数区划图的编制工作,介绍了地震动参数场地条件影响考虑技术思路的发展与变迁,给出了区划图地震动参数场地条件影响调整新方案和基于场地类别划分的场地影响系数表。进一步分析了新一代中国地震动参数区划图中考虑场地条件的地震动参数调整结果和变化特征。The demand and main research results are analyzed considering the site effects on the determination of seismic ground motion parameters in the engineering design, and comparison is made among the consideration methods for the site effects in the existing seismic design codes in China and other countries. Combined with the compiling work of the seismic ground motion parameter zonation map of China, the development and change of the technical approach for the consideration of site effects are introduced, and an adjustment scheme of seismic ground motion parameters related to the site condition and the corresponding site coefficient table is proposed based on site classification in zonation map compilation. Furthermore, the results and change features of the strong motion parameters adjusted for site class effects are analyzed in the new generation seismic ground motion parameter zonation map.

关 键 词：场地条件 场地类别 地震动参数 区划图 场地影响系数 

分 类 号：P315.9[天文地球—地震学]