摘要
为研究装配整体式连梁的抗震性能,完成了2个两层装配整体式双肢剪力墙试件的拟静力试验。2个试件的几何尺寸相同,配筋基本相同,区别在于组成连梁的一层预制窗上墙、后浇带与二层预制窗下墙之间,试件A采用单排钢筋套筒浆锚连接,试件B无此连接。试验结果表明:2个试件的破坏形态相同,为连梁端部形成塑性铰,以整体弯曲破坏为主,连梁后浇带与二层预制窗下墙相对错动,连梁整体有剪切斜裂缝;2个试件的承载能力、刚度基本相同,极限位移角都大于1/90。装配整体式连梁是否采用钢筋套筒浆锚连接,其抗震性能均满足要求。
To investigate the seismic behavior of assembly integrated coupling beams,quasi-static tests of 2 two-story assembly integrated coupled shear walls were performed.The geometrical sizes of the two specimens are same and the reinforcements are basically same,the differences lie in the connection mode among the window wall of the first floor,post-poured strip and the spandrel under the window of the second floor,Specimen A adopts single row of grout sleeves splices while there is no in specimen B.The test results indicate that the failure mode of the 2 specimens is same,the ends of coupling beams formed plastic hinges,the main damage is bending destruction,there is relative sliding between the post-poured strip of the coupling beam and the spandrel under the window of the second floor,there are shear skew cracks at the whole coupling beams of specimens.The bearing capacity and stiffness of the 2 specimens are basically same,the ultimate drift ratios are greater than 1 /90.For the assembly integrated coupling beam with or without reinforcements grout sleeves splices,its seismic behavior meets the requirements.
出处
《世界地震工程》
CSCD
北大核心
2013年第4期26-32,共7页
World Earthquake Engineering
基金
北京市科技计划课题(Z10110602231003)
关键词
双肢剪力墙
装配整体式连梁
后浇带
套筒浆锚连接
拟静力试验
抗震性能
coupled shear wall
assembly integrated coupling beam
post-poured strips
grout sleeve splicing
quasi-static test
seismic behavior
