【摘要】 在综合文献研究的基础上,给出了本文的结构易损性矩阵﹑房屋损失比、物资损失比以及间接损失与直接损失比;推导了框架结构按照"小震不坏"和"中震不坏"设计时,对应的各自的目标函数表达式;通过比较寻找目标函数的最小值,把问题转化为各设计方案的造价比较,并计算给出了7度区各类建筑"小震不坏"和"中震不坏"方案对比的等值线图,为业主和设计人员提供决策参考。更多还原

【Abstract】 The vulnerability matrices and the ratios of various seismic losses to direct economic losses are presented in this paper based on summarizing the related literature.The target functions corresponding to the two design criteria of"no damage under moderate earthquakes"and"no damage under fortification intensity"are deduced using method of cost-benefit analysis.The problem of finding the minimum values of the target functions is transformed into the comparison of the respective structural costs by introducing reasonable assumptions.The result is given in the form of isoline figures for various buildings in areas of intensity grade 7,which are obtained by letting the two target functions to be equal.The result can be conveniently used for designers and owners to make better decisions.更多还原