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综述结构弹塑性动力响应分析的方法、理论模型,以及地震作用下钢筋混凝土结构破坏准则.在分析结构弹塑性动力分析及其评价存在问题的基础上,提出其动力分析及评价关键技术.根据结构滞回运动中损伤退化累积释放弹性能与累积塑性变形能的关系,导出累积释放弹性能-位移关系函数.介绍以累积释放弹性能指标建立结构损伤程度评价模型、结构延性评价模型及相应的结构破坏准则新思路,并应用于解决结构基础隔震、减振耗能、振动控制和与非线性振动有关的工程问题.
In this paper, the method of elastic-plastic dynamic response analysis, the theoretical model and the criterion of failure of reinforced concrete structures under earthquake are reviewed. Based on the analysis of the elastic-plastic dynamic analysis and its existing problems, the dynamic analysis and evaluation of key technologies are proposed. The relationship between cumulative elastic deformation energy and cumulative plastic deformation energy in the period of hysteretic motion is deduced and the cumulative energy release-displacement relationship is deduced. The evaluation model of structural damage degree, structural ductility evaluation model and corresponding structure Destroy the new idea of criterion, and should be used to solve the structural problems such as base isolation, vibration energy dissipation, vibration control and nonlinear vibration.