考虑重要性时抗震结构最优设防水准的决策方法 摘要：以设防烈度作为决策单体结构最优地震设防水准 (即最优设防荷载 )的参数，结合现行抗震设计规范，提出了考虑重要性时工程结构地震设防水准的定义和取值方法；同时提出了考虑重要性时基于变形的地震性能目标；探讨了工程结构 The decision-making method for the optimal anti-seismic structure based on importance consideration Abstract: The strength of the optimal single-structure seismic design (ie, the optimal fortification load) is determined by the fortification intensity, and the current seismic design code is proposed in consideration of the importance. The seismic structure of the seismic structure of the project defines the definition and value of the method; at the same time, it proposes the seismic performance target based on the deformation when considering the importance, and discusses the engineering structure.