(1 清华大学土木工程系清华大学结构工程与振动教育部重点实验室，北京 100084；2 北京东方京宁建材科技有限公司，北京 100083)
［摘要］按照“强节点弱构件”的思想，设计并完成了5个不同配筋形式的足尺现浇钢筋混凝土空心楼板-剪力墙节点试件在板端往复荷载作用下的试验研究。试验结果表明：试件的破坏模式与预期模式相同，实测名义屈服荷载与设计承载力基本相符；试件空心板横截面满足平截面假定；边肋中布置箍筋或预应力筋均可提高空心板的抗剪承载力；试件的极限位移角大于1/40，其中弯曲破坏试件的极限位移角大于1/25，位移延性比大于4；试件的滞回耗能稳定，模拟实际配筋的试件J5相对耗能比最好。说明按照文中建议的设计方法，可以满足现浇钢筋混凝土空心楼板-剪力墙节点的抗震延性设计要求。
［关键词］现浇；钢筋混凝土空心楼板；剪力墙；节点；抗震性能
Seismic behavior of cast-in-place reinforced concrete hollow slab-shear wall joints
Zhao Zuozhou1，Ke Jianghua1，Qian Jiaru1，Xu Yan2(1 Key Laboratory of Structural Engineering and Vibration of China Education Ministry,Department of Civil Engineering, Tsinghua University, Beijing 100084，China；2 Beijing Dongfangjingning Building Material Science and Technology Co.,Ltd., Beijing 100083，China)
Abstract:According to principle of “strong joint and weak member”, five full-scale cast-in-place reinforced concrete hollow slab-shear wall joint specimens with different reinforcement details have been tested under reversed cyclic loading. From the experimental results it is found that the real failure modes of the five specimens are the same as the designed failure modes. The measured nominal yield loads of the 5 specimens are close to the predicted values. Measured reinforcement strain distributions at the different positions reveal that the cross section of the hollow slab fulfills the assumption of the plan section remaining plan before yield load. Arranging stirrups or prestress tendons in the edge ribs can increase the shear resisting capacity of a hollow slab. The measured ultimate shear displacement angles of the five specimens are larger than 1/40 and the ultimate shear displacement angle of the flexural failure specimens are larger than 1/25- The displacement ductility ratios of the specimens are larger than 4- The hysteretic energy dissipation capacity of each specimen is stable and increases with the maximum control displacement increased. The specimen J5 which simulates the real reinforcement detailing has the largest hysteretic energy dissipation ratio. These test results prove that the cast-in-place reinforced concrete hollow slab-shear wall joints can meet the seismic design code requirements using the proposed design method.
Keywords:cast in place; reinforced concrete hollow slab; shear wall; joint; seismic behavior
作者简介：赵作周，博士，副教授，Email：zzzhao@tsinghua.edu.cn。
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