T形RAC短肢剪力墙抗震性能试验研究  

Experimental study on seismic performance of T-shaped RAC short-leg shear walls

作　　者：樊禹江[1,2] 余滨杉[3] 熊二刚[2] 苗晓瑜[2] 

机构地区：[1]长安大学建筑学院,陕西西安710061 [2]长安大学建筑工程学院,陕西西安710061 [3]西安建筑科技大学土木工程学院,陕西西安710065

出　　处：《河海大学学报（自然科学版）》2016年第4期317-324,共8页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金(51178388);陕西省教育厅重点实验室科研计划项目(13JS050);陕西省工业攻关项目(2013K07-07);陕西省博士后基金(SX2014120057)

摘　　要：通过对4个缩尺比例为1∶2的不同再生粗骨料取代率、不同轴压比的T形再生混凝土(RAC)短肢剪力墙结构模型进行低周反复荷载作用下的抗震性能试验,分析试验所得模型破坏形态、特征曲线、延性、刚度退化、耗能能力及正负向特征荷载的变化规律。分析结果表明:(a)T形RAC短肢剪力墙具有良好的抗震性能,能够应用于轴压比较小的实际工程之中。(b)随着再生粗骨料取代率的增加,T形RAC短肢剪力墙特征曲线、耗能能力等指标逐渐增强,同时,随着轴压比的增大,各指标逐渐减小;试件延性性能随着再生粗骨料取代率及轴压比的增加出现不同程度的降低。Based on seismic performance tests on four T-shaped recycled aggregate concrete（ RAC） short-leg shear walls at a reduced scale of 1 ∶2,with different replacement rates of recycled coarse aggregate and axial compression ratios at low-cyclic loading frequencies,the variation patterns of the failure mode,characteristic curve,ductility,stiffness degradation,energy dissipation capacity,and characteristic loads in forward and backward directions are analyzed. The results indicate that T-shaped RAC short-leg shear walls show strong seismic performance,and can be applied to actual projects with a relatively low axial compression ratio; the performance of shear walls reflected by the characteristic curve and the indices,such as the energy dissipation capacity,gradually increase with the replacement rate of recycled coarse aggregate,and gradually decrease with the increase of the axial compression ratio; and the ductility of test specimens decreases in different degrees with the increase of the replacement rate of recycled coarse aggregate and axial compression ratio.

关 键 词：再生混凝土 T形短肢剪力墙 抗震性能试验 再生粗骨料取代率 轴压比 

分 类 号：TU37[建筑科学—结构工程] TU317