【摘要】 提出评估基准期的概念,推导出烈度的超越概率与重现期、年平均发生率三者间的关系。按照等超越概率原则确定不同后续服役期内小震、中震和大震的重现期。借鉴地震危险性分析的最新研究成果,给出基本烈度的计算方法及其与多遇烈度和罕遇烈度的换算关系,并落实到地震影响系数最大值以便实用。最后结合具有代表性的算例进行了说明。更多还原

【Abstract】 The concept of assessment reference period is put forward.The relation among exceeding probability,recurrence period and annual mean incidence of intensity is deduced.The recurrence periods of minor,moderate and major earthquake in different re-service periods are calculated based on equal exceeding principle.The method of determining basic intensity,frequent intensity and rare intensity,together with their relation is presented using the reference of the latest research findings of earthquake hazard analysis.And the maximum of seismic influence coefficient is given for practical use.Finally,a Typical example is given for explanation.更多还原