再生混凝土框架中间节点延性及耗能分析  

Analysis of the ductility and energy dissipation of the recycled concrete frame joints

作　　者：贾胜伟[1] 李晓文[1] 刘超[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《新型建筑材料》2010年第8期7-10,共4页New Building Materials

基　　金：国家科技部科技支撑计划项目(2008BAK48B05);陕西省自然科学基础研究计划重点项目(2009JZ012)

摘　　要：对再生粗骨料取代率分别为0、50%、100%的3榀再生混凝土框架中间节点在低周反复荷载作用下的试验研究,根据不同框架节点的破坏形态、滞回曲线的对比分析,研究了在模拟地震作用下再生混凝土节点的滞回特性、延性、耗能性能等问题。研究表明,再生混凝土节点的破坏过程和普通混凝土相类似,再生混凝土节点的延性和耗能性能与普通混凝土接近,说明再生混凝土可用于有抗震设防要求的框架节点中。In this paper, the seismic behavior of 3-scaled frame joints with recycled aggregate is studied under low frequency reversed lateral loading. The mass ratio of recycled coarse aggregate to the whole coarse aggregate is 0,50% and 100% respectively. According to comparatively investigation on the failure features and the hysteresis loops of different frame joints, hysteresis characteristics,ductility,energy dissipation and other issues under seismic loads are studied. The test and analysis show that the failure process of the recycled concrete frame joints is similar to that of the original concrete frame joint, and their ductility and energy dissipation are close to each other. So it is concluded in this paper that the recycled aggregate concrete can be applied in frame joints with seismic resistant requirement.

关 键 词：再生混凝土 框架节点 延性 耗能性能 

分 类 号：X799.1[环境科学与工程—环境工程] TU375.4[建筑科学—结构工程]