(1 清华大学土木工程安全与耐久教育部重点实验室，北京 100084;2 北京万科企业有限公司，北京 100125； 3 北京市城建技术开发中心，北京 100055)

［摘要］为研究竖向钢筋套筒浆锚连接的预制剪力墙的抗震性能，完成了5个剪跨比为2.25的剪力墙试件的拟静力试验，其中一个为现浇墙试件，两个为全预制墙试件，两个为采用竖向现浇带连接的预制墙试件，预制墙的竖向钢筋与地梁预留的竖向钢筋采用套筒浆锚直接连接。试验结果表明：套筒浆锚连接能够有效传递竖向钢筋的应力；预制墙试件的破坏形态与现浇墙试件的破坏形态相同，为钢筋受拉屈服、混凝土受压破坏；预制墙试件的刚度和耗能能力与现浇墙试件相当，极限位移角达1/59～1/48；预制墙的受压承载力可采用现行规范计算；竖向现浇带能将预制墙连接成整体，预制墙侧面采用粗糙面的连接性能优于键槽的连接性能。

［关键词］预制剪力墙； 套筒浆锚连接； 键槽； 粗糙面； 抗震性能； 拟静力试验

中图分类号：TU375文献标识码：A文章编号：1002-848X(2011)02-0001-06

Tests on seismic behavior of pre-cast shear walls with vertical reinforcements spliced by grout sleeves

Qian Jiaru¹, Peng Yuanyuan¹, Zhang Jingming², Qin Heng²,

Li Jianshu², Liu Guoquan², Zhao Fengdong³, Li Lurong³

(1 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Tsinghua University,

Beijing 100084, China; 2 Beijing Wanke Co., Ltd., Beijing 100125, China; 3 Center of Construction Science &

Technology, Beijing Municipal Commission of Housing and Urban-Rural Development, Beijing 100055, China)

Abstract:To study seismic behavior of pre-cast reinforced concrete (RC) shear walls with vertical reinforcements spliced by grout sleeves, quasi-static tests of 5 shear wall specimens with shear span ratio of 2.25 were performed. Among them, one is cast-in-site RC wall specimen, two are full pre-cast wall specimens, other two are specimens of two pre-cast walls connected with a cast-in-site RC stripe. The vertical reinforcements of the pre-cast wall specimens are spliced by grout sleeves. The test results indicate that the stresses of the vertical reinforcements can be transferred effectively by grout sleeves. The failure mode of the pre-cast wall specimens is the same as that of the cast-in-site wall specimen, i.e., tensile yield of reinforcements and compressive failure of concrete. The stiffness and the energy dissipation capacity of the pre-cast wall specimens are similar with those of the cast-in-site wall specimen. The ultimate drift ratios of the pre-cast wall specimens are 1/59～1/48. The current code formulas are suitable for calculating the compressive strength of the pre-cast shear walls. The cast-in-site stripe connects the pre-cast walls to be an unit, the integrity behavior of the rough interface of the side face of the pre-cast wall is better than that of the shear keys.

Keywords:pre-cast shear wall; grout sleeve splicing; shear key; rough interface; seismic behavior; quasi-static test

北京市科技计划课题(批准号：Z10110602231003)。

作者简介：钱稼茹，教授，Email:qianjr@tsinghua.edu.cn。

参考文献

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［2］GB50011—2010 建筑抗震设计规范［S］.北京：中国建筑工业出版社，2010.

［3］JGJ101—96 建筑抗震试验方法规程［S］.北京：中国建筑工业出版社，1996.