本文利用随机有限元方法 ,基于变形破坏准则 ,综合考虑了结构参数的随机性 ,场地类别的模糊性 ,各震害等级界限的模糊性 ,地震烈度的随机性与模糊性等一系列不确定因素对结构抗震可靠度的影响 ,提出了随机参数结构的抗震模糊可靠度的综合评判方法。以一幢 1 2层的框剪结构作为算得到了该结构在使用期限内对各震害等级的模糊可靠度。研究结果表明 ,上述诸不确定因素都能影响结构的抗震可靠度 ,综合考虑诸不确定因素的影响可使结构的抗震可靠度分析更为科学。本文的研究成果可用于对现有建筑结构进行抗震可靠度评估 ,并可用于指导基于可靠度理论的结构抗震设计。By use of random finite element method ,the influence in seismic design of structures based on deformed failure principle is discussed in this paper.The influence factors include structural parameter randomness,ground classification fuzzy,earthquake damage magnitude scale fuzzy,earthquake intersity scale randomnes and fuzzy.And Comprehensive aseismic fuzzy reliability judgement method is put forward.Through the calculation of a twelve-storey wall-frame structure,its fuzzy reliability ver earthquake damage magnitude scale in validate tenure of use is obtained.The research result show that aseismic reliability is influenced by the above factors,aseismic reliability analysis method accounting into the above factors in more scientifc.The existing buliding's aseismic reliability is eyaluated and seismic design based on reliability is guided by this research result
