配筋齿槽装配式低矮剪力墙抗震性能试验研究  

Experimental Research on Seismic Performance of Reinforced Tenon Precast Low-Rise Shear Walls

作　　者：吴东岳[1] 彭祥东 陆寅杰 陈伟 王石林 王旭 付倩 WU Dongyue;PEND Xiangdong;LU Yinjie;CHEN Wei;WANG Shilin;WANG Xu;FU Qian(School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212000,China;School of Science and Technology for Innovation,Yamaguchi University,Ube 755-0097,Japan;Jinan Urban Planning Exhibition,Jinan 250000,China;School of Engineering Audit,Nanjing Audit University,Nanjing 211815,China)

机构地区：[1]江苏科技大学土木工程与建筑学院,江苏镇江212000 [2]山口大学創成科学研究科,宇部755-0097 [3]济南市城乡规划编制研究中心,济南250000 [4]南京审计大学工程审计学院,南京211815

出　　处：《工业建筑》2022年第7期72-78,共7页Industrial Construction

基　　金：国家青年自然科学基金项目(51708260);江苏省高校自然科学基金面上项目(2016TM045J);江苏省水利科技项目(2019062);江苏科技大学博士科研启动项目(1122931603)。

摘　　要：装配式剪力墙拼缝部位发生水平相对滑移,对装配式剪力墙的抗震性能产生不利影响,为改善装配式剪力墙拼缝的力学性能,提出一种大尺寸配筋齿槽抵抗拼缝剪切力,纵向连接钢筋承受拉压应力并屈服耗能的新型配筋齿槽装配式剪力墙。为研究配筋齿槽装配式低矮剪力墙的抗震性能,对2片高宽比分别为1.76和1.5的配筋齿槽装配式剪力墙进行拟静力加载试验,观察试件的裂缝发展规律和破坏形态,分析其滞回曲线、骨架曲线、承载力、刚度退化、延性、耗能能力、钢筋应变及拼缝连接性能。结果表明:两片试件的破坏形态均为墙体底部拼缝处的压弯破坏,但拼缝界面并未发生较大剪切滑移,表现出较好的抗剪承载能力。墙体的初始刚度、耗能能力和延性等力学性能指标达到“等同现浇”水准。同时,具有较低高宽比的试件表现出更好的抗震性能。The horizontal relative slip of the precast shear wall joints has a negative impact on the seismic performance of the precast shear wall.In order to improve the mechanical properties of the precast shear wall joints,a new type of precast shear wall with large-size reinforced tenon to resist the shear force of the joints and the longitudinal connecting steel bars to bear tensile and compressive stress and yield energy dissipation was proposed.In order to investigate the seismic performance of reinforced tenon precast low-rise shear walls,two reinforced tenon precast low-rise shear walls with aspect ratio of 1.76 and 1.5 were tested under quasi-static loading.The crack development law and failure mode of the specimens were observed,and the hysteresis curve,skeleton curve,bearing capacity,stiffness degradation,ductility,energy dissipation capacity,steel bar strain and joint connection performance were analyzed.The results showed that the failure modes of the two specimens were compressive bending failure at the bottom joint of the wall,but there was no large shear slip at the joint interface,which showed a good shear bearing capacity.The mechanical properties such as initial stiffness,energy dissipation capacity and ductility of the wall could reach the level of‘equivalent cast-in-situ’.At the same time,the specimens with lower aspect ratio showed better seismic performance.

关 键 词：配筋齿槽 装配式低矮剪力墙 高宽比 抗震性能 拟静力试验 

分 类 号：TU352.11[建筑科学—结构工程]