摘要
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.
The elasto-plastic dynamic analysis methods, theoretical models of＇structures and failure criterion of reinforced concrete structures under earthquake are reviewed. Based on some problems of elasto-plastic dynamic analysis of struetures and evaluation of damaged structures, the key techniques of elasto-plastie dynamic analysis and its evaluation are presented. According to the relationship between the cumulative emission of elastic energy during damage degradation and the cumulative plastic energy in the hysteretic motion, the function between cumulative emission of elastic and plastic energy is obtained. Taking the cumulative emission of elastic energy as an evaluative index, a new idea to establish the model of structural damage and to evaluate the ductility and failure criterion, is put forward, which can be applied to solve the problems concerning non-linear vibration, such as the base isolation, vibration-absorption and energy-dissipation, vibration control.
出处
《华侨大学学报（自然科学版）》
CAS
北大核心
2009年第1期6-11,共6页
Journal of Huaqiao University(Natural Science)
基金
国家自然科学基金资助项目(50578066)
关键词
损伤结构
弹塑性振动
累积释放弹性能
性能分析
时程分析
damaged structures
elasto-plastic vibration
cumulative emission of elastic energy
perform evaluation
time history analysis
