基于双重破坏准则的抗震结构可靠指标算法

Method Based on Double Damags Criterion for Calculating the Reliability Index of Aseismatic Structure

以结构抗震分析的时程分析方法以及结构可靠度分析的Ｊ·Ｃ方法为基础，给出了多层剪切型结构基于双参数（变形与耗能）破坏准则的抗震可靠指标的计算方法。本方法可考虑结构参数随机性对结构抗震可靠度的影响，且可对结构进行地震全过程可靠度分析。

By combining J·C method with Wilson-θ method, this peper presents a new method for calculating the reliability index of multi-storey shear structure under strong earthquake based on double damage criterion that is the first time overstep failure and the cumulative damage. The random of structural parameters is liken into consideration in this new method. By using the method, the reliability index of multi-stotey shear Sttucture at any time during strong earthquake can be calculated.