全再生混凝土框架抗震性能  

Seismic performance of reinforced totally-recycled concrete frame

作　　者：吕西林[1] 张翠强[1] 周颖[1] 卢文胜[1] 曹万林[2] 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092 [2]北京工业大学建筑工程学院,北京100124

出　　处：《中南大学学报（自然科学版）》2014年第6期1932-1942,共11页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51078274);北京市科技计划重大项目(D09050600370000)

摘　　要：全再生混凝土是指混凝土中的粗细骨料均来自建筑废料,其性能与普通混凝土有一定的区别,因此有必要研究全再生混凝土框架结构的抗震性能。土木工程防灾国家重点实验室研究人员设计一个1/4缩尺8层全再生混凝土框架结构模型,来研究全再生混凝土框架结构的抗震性能。通过研究全再生混凝土框架结构振动台模型试验,揭示全再生混凝土框架结构的抗震性能,并通过CANNY计算软件进行弹塑性时程分析和易损性分析,来综合评价全再生混凝土框架结构的抗震性能。结果表明:通过合理的设计,全再生混凝土8层框架结构基本可以满足8度抗震设防要求。The definition of the totally-recycled concrete is that both coarse and fine aggregates of the concrete are made of the building wastes. Because of the different mechanical property between new and totally-recycled concrete, it is necessary to study the seismic performance of totally-recycled concrete structure. The shaking table test on a 1/4 scaled 8-story reinforced totally-recycled concrete （RTRC） frame was conducted in the State Key Laboratory of Disaster Reduction in Civil Engineering at Tongji University to study the seismic performance of the structure. This paper puts emphasis on shaking table test of the RTRC frame. Meanwhile, elasto-plastic time history analysis and fragility analysis using CANNY were made to simulate and evaluate the behaviors of the RTRC frame. Both the experimental and analytical results show that through reasonable design, the seismic performance of the RTRC frame can basically meet the requirement of the seismic design at intensity 8.

关 键 词：全再生混凝土 框架 振动台试验 弹塑性时程分析 易损性分析 

分 类 号：TU375[建筑科学—结构工程] TU317