张锡治 ,李军委 ,李福林,窦玉斌,郭红云 ,李雅楠
AuthorsHTML:张锡治 ^{1, 2}，李军委 ³ ，李福林 ³ ，窦玉斌 ¹ ，郭红云 ¹ ，李雅楠 ¹
AuthorsListE:Zhang Xizhi,Li Junwe,Li Fulin,Dou Yubin,Guo Hongyun,Li Yanan
AuthorsHTMLE:Zhang Xizhi^{1, 2}，Li Junweⁱ³，Li Fulin³，Dou Yubin¹，Guo Hongyun¹，Li Yanan¹
Unit:1. 天津大学建筑设计规划研究总院有限公司，天津 300072；
2. 滨海土木工程结构与安全教育部重点实验室(天津大学)，天津 300072；
3. 天津大学建筑工程学院，天津 300072

Unit_EngLish:1. Tianjin University Research Institute of Architectural Design and Urban Planning Co.，Ltd.，Tianjin 300072，China；
2. Key Laboratory of Coast Civil Structure Safety of Ministry of Education(Tianjin University)，Tianjin 300072，China；
3. School of Civil Engineering，Tianjin University，Tianjin 300072，China

Abstract_Chinese:为研究水平接缝处不同处理方式对复合齿槽连接预制剪力墙抗震性能的影响，对 3 片足尺预制剪力墙的水 平接缝分别采取普通凿毛、加设型钢抗剪键及增大穿过接缝的钢筋直径 3 种处理方式的复合齿槽连接预制剪力墙试 件进行拟静力试验，观察各试件最终破坏形态，对比分析其滞回曲线、骨架曲线、承载力、耗能能力、延性、刚度 退化和钢筋应变的差异．结果表明：所有试件破坏模式均为预制墙体两侧暗柱纵筋受压屈服或拉断、墙体两侧角部 混凝土压溃剥落的压弯破坏；预制试件的位移延性系数均大于 4，极限位移角为 1/51～1/42；各试件齿槽处 U 型钢 筋搭接连接锚固可靠，能有效地传递钢筋应力；增设型钢抗剪键及增大穿过接缝的钢筋直径的试件其滞回曲线更加 饱满，承载力、耗能能力及初始刚度均有较大提高，有更好的抗震性能；水平缝处增设型钢抗剪键的预制试件 YZW2 拥有更好的墙体变形能力，墙体延性更好，能够更好地提高预制墙体抗剪能力和整体的工作性能，避免发生 剪切滑移；增大钢筋直径的预制试件 YZW3 拥有更高的初始刚度，墙体开裂延迟，在工程中更便于施工操作．
Abstract_English:To investigate the influence of different treatment methods for horizontal joints on the seismic performance of prefabricated shear walls with composite alveolar，pseudo-static tests were conducted on the prefabricated shear wall specimens with three horizontal joints of full-scale precast shear walls，which were treated with a common chisel，by adding a steel shear key，and by increasing the diameter of the steel bar passing through the joints. The final failure patterns of each specimen were observed. The differences of the hysteresis curve，skeleton curve， bearing capacity，ductility，stiffness degradation，and steel bar strain were compared and analyzed. Results show that the failure modes of all specimens are tensile yield of the longitudinal reinforcements in the concealed column and compressive failure of concrete at the bottom of the wall. The displacement ductility ratio of the prefabricated speci\u0002mens is greater than 4，and the ultimate drift ratios of precast specimens range from 1/51 to 1/42. The U-type steel overlap in the composite alveolar area of each specimen is reliable and can effectively transfer the stresses of vertical reinforcement. The hysteresis curve of the specimen with the steel shear key and the large-diameter reinforcing barpassing through the joint is fuller than that of the other specimens，and its bearing capacity，energy dissipation capacity，and initial stiffness are considerably improved. Compared with the other specimens，the prefabricated specimen YZW2 with steel shear key at the horizontal joint has better wall deformation capacity and better wall ductility， which can improve the shear resistance and overall working performance of the precast wall to avoid shear slip. Compared with the other specimens，the prefabricated specimen YZW3 with reinforcing bar at the horizontal joint has higher initial stiffness and better performance on delaying wall cracking，which ensure convenience during engineering operation.
Keyword_Chinese:水平接缝；预制剪力墙；齿槽式连接；型钢抗剪键；抗震性能
Keywords_English:horizontal joint；prefabricated shear wall；alveolar-type connection；steel shear key；seismic perform\u0002ance

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