本文通过结构的动力可靠性分析和损失估计建立了以动力可靠性为约束的非线性抗震结构双目标(造价与损失期望)优化设计模型,提出了具体实现这种优化设计思想的实际可行的方法。文中将地震地面运动模拟为平稳过滤有色噪声,建立了以破坏指数刻划的结构体系的模糊震害等级,提出了结构模糊动力可靠性分析和损失估计的具体方法,从而使优化设计模型中各有关量的分析和计算得以具体地实现。 In this paper, the dynamic reliability of the structure is established to establish a bi-objective (cost and loss expectation) optimization design model of nonlinear seismic structure with constraints of dynamic reliability, and a practical method for realizing this optimization design idea is proposed. . In this paper, the seismic ground motion is simulated as a smooth filtering of colored noise, and the fuzzy earthquake damage grade of the structural system delineated by the destruction index is established. The concrete methods of structural fuzzy dynamic reliability analysis and loss estimation are proposed, so that each of the optimization design models The analysis and calculation of relevant quantities can be achieved concretely.