(黑龙江八一农垦大学土木水利学院, 大庆 163319)

摘要: 为简化四边连接开洞屈曲约束钢板墙结构的建模、分析和设计,提出采用等效多斜杆模型作为四边连接开洞屈曲约束钢板墙的等代模型. 确定了合理的杆件数量、位置和斜杆截面面积分配比例. 基于刚度和承载力等效原则给出了斜杆截面面积和等效材料强度的计算公式. 利用有限元方法对四边连接开洞屈曲约束钢板墙和等效多斜杆模型进行了分析对比,验证了等效多斜杆模型的准确性. 结果表明:提出的等效多斜杆模型不仅能够准确模拟四边连接开洞屈曲约束钢板墙的受力过程,还能较好地模拟开洞屈曲约束钢板墙对边缘构件的传力,结构的初始刚度、屈服承载力、荷载-位移曲线和边缘构件的内力大小与分布均符合较好,可以作为四边连接开洞屈曲约束钢板墙的等代模型进行结构分析与设计.

关键词: 屈曲约束钢板墙; 开洞; 四边连接; 等效多斜杆模型

中图分类号:TU392. 4 文献标志码:A 文章编号:1002-848X(2023)03-0122-05

DOI:10. 19701 / j. jzjg. LS210346

Simplified analysis model for four-side connected buckling restrained steel plate shear wall with holes

LIU Wenyang, DAI Qipeng, GUO Wei, ZHANG Ronghua

(College of Civil Engineering and Water Conservancy, Heilongjiang Bayi Agricultural University, Daqing 163319, China)

Abstract:In order to simplify the modeling, analysis and design of four-side connection buckling restrained steel plate shearwall (FBRW) with holes, the equivalent diagonal strip model was presented as the equivalent model of holed FBRW. Thereasonable number of diagonal strips, location and section area distribution ratio of diagonal strips were proposed. Based onthe principle of equal stiffness and bearing capacity, the formulas for calculating the section area and equivalent materialstrength of diagonal strips were presented. The holed FBRW and the equivalent diagonal strip model were analyzed by finiteelement method to verify the accuracy of the equivalent diagonal strip model. The results indicated that the equivalentdiagonal strip model can accurately simulate the loading process of the holed FBRW and the force transmission of the holedFBRW to boundary elements. The initial stiffness, bearing capacity, load-displacement curve, the magnitude anddistribution of internal forces of boundary elements were all in good agreement. So the proposed equivalent diagonal stripmodel can be used as the equivalent model of the holed FBRW in structural analysis and design.

Keywords:buckling restrained steel plate shear wall; holes; four-side connection; equivalent diagonal strip 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),黑龙江八一农垦大学研究生创新科研项目(YJSCX2021-Y118).

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,代启鹏,郭巍,等. 四边连接开洞屈曲约束钢板墙简化分析模型[ J]. 建筑结构,2023,53(3):122-126. LIU Wenyang,DAI Qipeng,GUO Wei,et al. Simplified analysis model for four-side connected buckling restrainedsteel plate shear wall with holes[J]. Building Structure,2023,53(3):122-126.