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本文是我们近年来研究非线性抗震钢筋混凝土结构随机动力分析、模糊动力可靠性分析及其可靠性设计与优化设计的思想、方法和成果总结。主要阐述了设计用随机地震动模型及模型参数确定;与结构设计参数对应的恢复力模型及参数确定、结构的抗震能力(极限变形和极限耗能)的确定,非线性钢筋混凝土结构的实用随机地震反应分析、随机破损分析、模糊动力可靠性分析和损失估计方法;基于上述分析方法的期望破损度设计、可靠性设计和双目标(造价与损失期望)优化设计方法。
This article summarizes the ideas, methods and results of our research on the random dynamic analysis, fuzzy dynamic reliability analysis and reliability design and optimization design of nonlinear seismic reinforced concrete structures in recent years. It mainly describes the design of a random ground motion model and the determination of model parameters; the determination of the restoring force model and parameters corresponding to the structural design parameters, the determination of the structure’s seismic capacity (limit deformation and limit energy consumption), and practical randomization of nonlinear reinforced concrete structures. Seismic Response Analysis, Random Damage Analysis, Fuzzy Dynamic Reliability Analysis and Loss Estimation Methods; Based on the above analysis methods, the design of the desired damage degree, reliability design, and double objective (cost and loss expectations) optimal design method.