RC构件损伤模型对比分析  

Comparative analysis on damage model of RC member

作　　者：赵志鹏[1,2] 胡克旭[1] 尹帅锋 ZHAO Zhipeng HU Kexu YIN Shuaifeng(Research Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai 200092, China Shanghai Tunnel Engineering and Rail Transit Design and Research Institute, Shanghai 200235, China Economic ＆ Technology Research Institute,State Gird Shandong Electric Power Company,Jinan 250021 ,China)

机构地区：[1]同济大学结构工程与防灾研究所,上海200092 [2]国网山东省电力公司经济技术研究院,山东济南250021 [3]上海市隧道工程轨道交通设计研究院,上海200235

出　　处：《四川建筑科学研究》2017年第1期39-44,共6页Sichuan Building Science

基　　金：国家科技支撑计划课题(2009BAJ28B02)

摘　　要：在对国内外典型的RC构件损伤模型进行梳理总结的基础上,对常见的损伤指标的合理性进行了分析,结果表明,与刚度退化指标相比,超越变形指标和累积耗能指标更为合理。进而选取了部分基于超越变形指标或累积耗能指标的损伤模型,分别对RC柱和RC节点试件进行了全过程损伤计算。通过比较分析发现,对于RC柱的震损分析Park-Ang损伤模型更为适用,而对于RC节点的震损分析牛荻涛损伤模型更为适用。所得结论为实际工程分析和后续研究提供了理论指导。On the basis of summarizing the typical damage model of RC component,the rationality of the common damage parameter is analyzed. The results show that the transcendental deformation parameter and the accumulative energy consumption parameter are more reasonable than the stiffness degradation parameter. Then the damage models based on the transcendental deformation parameter and the cumulative energy consumption parameter are selected, and the whole process damage calculation of RC column specimen and RC joint specimen are carried out. The results show that the Park-Ang damage model is more suitable for the seismic damage analysis of RC column, and the Niu Ditao damage model is more suitable for the seismic damage analysis of RC joint. The results provide theoretical guidance for practical engineering analysis and follow-up study.

关 键 词：RC构件 刚度退化 超越变形 累积耗能 损伤模型 

分 类 号：TU375.4[建筑科学—结构工程]