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基于变形破坏准则和规范推荐的弹塑性层间位移的简化计算方法,以层间位移为控制指标,提出了渡槽结构“大震不倒”的可靠度分析模型;基于现行相关规范的规定,提出了渡槽槽架结构层间位移的控制限值;根据各随机变量的统计特征,采用Monte-Carlo模拟与有限元相结合的方法对渡槽槽架结构弹塑性位移控制的可靠度进行了研究,结合实例,分析了层间位移可靠指标与层屈服强度系数ξy之间的关系,并为渡槽结构在地震作用下的可靠度分析和设计提供了一种新方法.
Based on the simplified calculation method of elasto-plastic interlayer displacement recommended by the deformation failure criterion and the specification, the reliability analysis model of aqueduct structure is proposed based on the displacement between layers. Based on the relevant provisions According to the statistical characteristics of each random variable, the reliability of elasto-plastic displacement control of aqueduct frame structures was studied by Monte-Carlo simulation and finite element method , The relationship between the reliable index of layer displacement and the coefficient of yield strength ξy is analyzed with examples. And a new method is provided for the reliability analysis and design of aqueduct structure under earthquake action.