(1 黑龙江八一农垦大学土木水利学院, 大庆 163319; 2 洲宇设计集团股份有限公司, 成都 610213)

摘要: 将 X 型屈曲约束钢板墙在上、下边与梁连接并在侧边与柱部分连接,即形成局部连接 X 型屈曲约束钢板墙. 侧边局部连接可避免两边连接屈曲约束钢板墙梁端剪力过大,同时 X 型墙的中部削弱也避免了屈曲约束钢板墙易于在角部首先发生破坏的问题. 采用有限元模拟的方法对局部连接 X 型屈曲约束钢板墙的受力性能进行了分析,研究发现增大侧边连接高度能够有效减小梁端剪力,而且结构的刚度和承载力也随之增大. 通过参数分析确定了 X 型屈曲约束钢板墙侧边连接高度的建议取值,提出了局部连接 X 型屈曲约束钢板墙初始刚度和屈服承载力的计算公式,分析结果表明提出的理论公式具有较高的准确性. 此外,还提出了局部连接 X 型屈曲约束钢板墙的等效支撑模型用于进行结构简化分析.

关键词: X 型屈曲约束钢板墙; 局部连接; 初始刚度; 屈服承载力; 等效支撑模型

中图分类号:TU392. 4 文献标志码:A 文章编号:1002⁃848X(2022)16⁃0088⁃06

DOI:10. 19701 / j. jzjg. LS210306

Research on mechanical behavior of partially connected X⁃shape buckling restrainedsteel plate shear wall

LIU Wenyang1, TANG Yuanjun2, SUN Yuzong1, BAI Na1

(1 College of Civil Engineering and Water Conservancy, Heilongjiang Bayi Agricultural University, Daqing 163319, China;2 Zhoyu Design Group Co. , Ltd. , Chengdu 610213, China)

Abstract: Connecting the X⁃shape buckling restrained steel plate shear wall (XBRW) to boundary beams on the top andbottom sides, and to boundary columns at local part on the left and right sides, which is the partially connected XBRW(PXBRW). Partial connection on the left and right sides could avoid the excessive shear force at the beam end for bucklingrestrained steel plate shear wall with two⁃side connections. Moreover, the weakening of the middle part of XBRW alsoavoids the damage at the corners of buckling restrained steel plate shear wall. The mechanical behavior of PXBRW wasanalyzed by finite element simulation. It indicated that increasing the side connection height could effectively reduce theshear force at beam ends. Meanwhile, the stiffness and bearing capacity of structure also increased. By parametricanalysis, the recommended value of side connection height of PXBRW was determined, and the formulas for initial stiffnessand yield capacity of PXBRW were proposed. The analysis results show that the proposed theoretical formulas can be usedto calculate the initial stiffness and yield capacity of PXBRW with adequate accuracy. Furthermore, an equivalent bracemodel of PXBRW was presented for simplified structural analysis.

Keywords:X⁃shape buckling restrained steel plate shear wall; partial connection; initial stiffness; yield capacity;equivalent brace model

∗国家自然科学基金项目(51608180),黑龙江八一农垦大学学成、引进人员科研启动计划课题(XDB⁃2017⁃05).

第一作者:刘文洋,博士,副教授,主要从事钢结构抗震研究,Email:wyliu81@ 126. com.

[引用本文] 刘文洋,唐远俊,孙玉宗,等. 局部连接 X 型屈曲约束钢板墙受力性能研究[ J]. 建筑结构,2022,52(16):88⁃93. LIU Wenyang,TANG Yuanjun,SUN Yuzong,et al. Research on mechanical behavior of partially connectedX⁃shape buckling restrained steel plate shear wall[J]. Building Structure,2022,52(16):88⁃93.