低周反复荷载下预制混凝土夹心保温剪力墙的试验研究  

Experimental study on precast concrete sandwich insulation shear walls under low reversed cyclic loading

作　　者：薛伟辰[1] 杨佳林[1] 董年才 李康 

机构地区：[1]同济大学建筑工程系,上海200092 [2]南通建筑工程总承包有限公司,海门226124

出　　处：《东南大学学报（自然科学版）》2013年第5期1104-1110,共7页Journal of Southeast University：Natural Science Edition

基　　金：新世纪优秀人才支持计划资助项目(NCET-10-0636);中央高校基本科研业务费专项计划资助项目

摘　　要：试件参数包括竖向钢筋连接排数(单排或双排)、竖向钢筋连接数量(全部或部分连接)以及内叶墙板、保温层和叶墙板厚度(分为200 mm+50 mm+60 mm与100 mm+50 mm+100mm两种).研究结果表明:6片剪力墙均发生受弯破坏;现浇剪力墙与200 mm+50 mm+60 mm预制剪力墙具有相近的耗能能力和位移延性,100 mm+50 mm+100 mm预制剪力墙的耗能能力和位移延性则稍差;采用单排全部钢筋连接方案的预制剪力墙的承载力、位移延性、耗能能力均与采用双排全部钢筋连接方案的剪力墙相近,而采用单排部分钢筋连接方案的预制剪力墙承载力与位移延性稍大,耗能能力则基本相同.Tests of five full-scale precast concrete sandwich insulation shear walls and one cast-inplace （CIP） concrete shear wall were carried out under low reversed cyclic loading. The main parameters of specimens are row number of connected vertical reinforcing bars （single-row or double- row）, number of connected vertical reinforcing bars （ full or part）, thickness of external concrete wythe, insulation layer and internal concrete wythe （ two kinds of cross sections of precast specimens with 200 mm ＋ 50 mm ＋ 60 mm and 100 mm ＋ 50 mm ＋ 100 mm respectively）. The results show that all specimens fail in bending. The CIP concrete and the 200 mm ＋ 50 mm ＋ 60 mm precast shear walls exhibit similar energy dissipation and displacement ductility. Comparatively, the energy dissi- pation and the displacement ductility of the 100 nun ＋ 50 mm ＋ 100 mm precast shear walls are slightly poor. In addition, the beating capacity, displacement ductility and energy dissipation of precast walls with single-row full connected vertical reinforcing bars are similar to those of the walls with double-row full connected reinforcing bars. In comparison, the former two capacities of precast walls with single-row partially connected vertical reinforcing bars are relatively higher. The energy dissipations of these three kinds of precast walls are almost the same.

关 键 词：预制混凝土 夹心保温剪力墙 低周反复荷载试验 承载力 延性 耗能 

分 类 号：TU375.2[建筑科学—结构工程]