双层双跨混凝土框架结构加固后抗震性能试验研究  

Studies on Seismic Performance of Double Story and Double Span RC Strenthened Frame

作　　者：郑昊[1,2] 郑乔文[1,2] 朱春明[1,2] 李向民[1,2] 

机构地区：[1]上海市工程结构新技术重点实验室,上海200032 [2]上海市建筑科学研究院(集团)有限公司,上海200032

出　　处：《工程抗震与加固改造》2010年第5期57-62,74,共7页Earthquake Resistant Engineering and Retrofitting

基　　金："十一五"国家科技支撑计划项目(2006BAJ03A10-02)

摘　　要：通过低周反复水平荷载试验对四榀双层双跨混凝土框架结构加固后的破坏形态、破坏机制、滞回曲线、骨架曲线、位移延性、刚度退化、耗能能力等性能进行了较为深入系统的研究。研究表明,混凝土框架在加固后均具有良好的抗震性能。同时采用软件SeismoSoft 4.0对模型框架进行数值分析,计算结果表明,计算值与试验结果吻合较好。The seismic performance such as failure pattern,failure mechanism,hysteresis loop curves,displacement ductility,rigidity degradation and energy dissipation of four pieces of strengthened frame with double-story and double-span are studied systematically by testing of low reversed cyclic loading.The result shows that seismic performance of the strengthened frames is better.Analyzing the frames is based on soft SeismoSoft 4.0,calculations are in good agreement with the testing results.

关 键 词：双层双跨混凝土框架 低周反复水平荷载 滞回分析 

分 类 号：TU375.4[建筑科学—结构工程] TU311.3