【摘要】 讨论了场地条件对场地设计地震动参数的影响问题，对国际上一些国家的抗震设计规范考虑该问题的相关规定作了介绍和分析，探讨了抗震设计规范对该问题处理的发展趋势．基于相关的强震纪录统计分析和场地模型计算反应分析已有的结果．研究了场地条件对场地设计地震动参数的影响特点和规律，重点考虑了场地类别和场地土体非线性的影响．结合这些分析与探讨结果，建议了用于不同类别场地设计地震动参数确定的一组经验系数．更多还原

【Abstract】 The relevant problems are considered for the influence of site condition on design earthquake ground motion. The stipulations related to the consideration of site condition are introduced and analyzed on the regulations for seismic design in some countries and areas. The tendency is analyzed for improvement of the regulations to deal with the problems. The features and laws of the influence of site condition on earthquake ground motion are discussed based on the research results of statistical analyses of strong ground motion records and calculating responses of site models. In the discussion, we focus on the influence of soil classes and nonlinearity. A set of empirical coefficients is suggested for the determination of ground motion parameters for different site classes in the end of this paper.更多还原