文中针对地震危险性分析结果给出不同概率水准地震动参数的特点,提出最优设防标准的定义,并以此选取合理的地震动参数。根据考虑同等烈度震中距的概率分布建立其与常规抗震设计的联系,最后以一具体算例加以说明。 According to the analysis results of seismic hazard, the characteristics of ground motion parameters with different probabilities are given, and the definition of the optimal fortification standard is put forward to select reasonable ground motion parameters. According to the probability distribution considering the same intensity epicentral distance, it establishes the relationship with the conventional seismic design, and finally illustrates it with a concrete example.