- 摘 要
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(1 北京建筑大学北京未来城市设计高精尖创新中心, 北京 100044;2 山东艾科福建筑科技有限公司, 烟台 264006;3 大连理工大学土木工程学院, 大连 116024)
[摘要]为研究轴压比、水平钢筋配筋量对设置现浇边缘构件装配整体式剪力墙的受弯性能的影响,完成了3个装配整体式剪力墙试件和1个现浇钢筋混凝土剪力墙试件的拟静力试验。试验结果表明:剪跨比为1.5的装配整体式剪力墙的承载力略低于现浇钢筋混凝土剪力墙,但变形能力更好;提高水平钢筋配筋量以及增大轴压比,装配整体式剪力墙墙体破坏区域向榫卯接缝和中部竖向通孔等位置处发展,墙体根部混凝土压溃区域面积减小,墙体承载力及正常使用阶段的刚度增大;装配整体式剪力墙榫卯接缝连接性能良好,能够保证墙体的整体性。
[关键词]装配整体式剪力墙;榫卯接缝;现浇边缘构件;轴压比;剪跨比;受弯性能
中图分类号:TU973-1+6,TU317+.1文献标识码:A文章编号:1002-848X(2021)09-0030-08
Experimental study on bending behavior of assembled monolithic shear walls with mortise-tenon joint under medium and high shear span ratio
CHU Mingjin1, LI Xiangbin1, LIU Jiliang3, CAO Chunli1,2, CHEN Guoyao1, LI Aiqun1
(1 Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 2 Shandong Aikefu Building Technology Co., Ltd., Yantai 264006, China; 3 School of Civil Engineering, Dalian University of Technology, Dalian 116024, China)
Abstract:In order to study the influence of the axial compression ratio and the amount of horizontal reinforcement on the bending behavior of the assembled monolithic shear walls with cast-in-situ boundary members, the pseudo-static tests of three mortise-tenon shear wall specimens and one cast-in-situ reinforced concrete shear wall specimen were carried out. The test results show that the bearing capacity of the assembled monolithic shear walls with shear span ratio of 1.5 is slightly lower than that of the cast-in-place reinforced concrete shear walls, but the deformation capacity is better. With the increase of the amount of horizontal reinforcement and axial compression ratio, the damage area of the assembled monolithic shear walls develops toward the mortise-tenon joint and the vertical through hole in the middle. The area of the concrete compression area at the root of the walls decreases, the bearing capacity of the walls and the rigidity of the normal use stage increase. The connection behavior of mortise-tenon joint of assembled monolithic shear walls is very well, which can ensure the integrity of the walls.
Keywords:assembled monolithic shear wall; mortise-tenon joint; cast-in-situ boundary element; axial compression ratio; shear span ratio; bending behavior
*国家自然科学基金项目(51778034),山东省自然科学基金(ZR2018PEE024),北京市属高校基本科研业务费专项资金资助(X18179,X19003)。
作者简介:初明进,博士,教授,博士生导师,Email: chumingjin@bucea.edu.cn;通信作者:李爱群,博士,教授,博士生导师,Email: liaiqun@bucea.edu.cn。