(1 四川省建筑设计研究院有限公司, 成都 610095; 2 四川省建筑设计研究院有限公司复杂结构设计研究中心, 成都 610095)

摘要: 为了研究加劲肋对大宽高比钢板剪力墙抗震性能的影响,参考实际工程的墙板宽高比,基于 ABAQUS 构建了钢板剪力墙的精细化非线性数值分析比对模型. 模型包括非加劲钢板剪力墙和竖向交替加劲钢板剪力墙两种,比较分析了二者的屈曲特征、抗剪性能、滞回性能、应力发展与变形分布等行为,明确了竖向交替加劲肋对大宽高比钢板剪力墙抗震性能的影响规律. 结果表明:竖向交替加劲肋可有效延缓墙板的面外屈曲,提高墙板的弹性屈曲荷载;竖向交替加劲钢板剪力墙滞回性能优异,墙板拉力带分布更加均匀,拉力带水平分量对柱引起的附加弯矩较小,墙板呈现出中厚板的工作特性.

关键词: 竖向交替加劲肋; 大宽高比钢板剪力墙; 弹性屈曲荷载; 抗剪承载力; 加劲系数

中图分类号:TU392. 4 文献标志码:A 文章编号:1002-848X(2023)07-0009-09

DOI:10. 19701 / j. jzjg. SADI2302

Study on influence of vertical alternate stiffeners on seismic performance of steel plate shear walls with large width to height ratio

FAN Qinchuan1,2, GONG Xiaobing1,2, LI Yan1,2, GUO Changling1, HE Fei1,2

(1 Sichuan Provincial Architectural Design and Research Institute Co. , Ltd. , Chengdu 610095, China;2 Complex Structure Design and Research Center, Sichuan Provincial Architectural Design and ResearchInstitute Co. , Ltd. , Chengdu 610095, China)

Abstract: In order to study the influence of stiffeners on seismic performance of steel plate shear walls with large width toheight ratio, the refined nonlinear numerical analysis comparison model of steel plate shear walls with ABAQUS wereestablished by referring to the width to height ratio of wall panels in practical projects. The model includes two models ofnon-stiffened steel plate shear wall and vertically alternately stiffened steel plate shear wall. The behaviors includingbuckling characteristics, shear resistance, hysteretic behavior, stress development and deformation distribution werecompared and analyzed, and the influence of vertical alternately stiffeners on the seismic performance of steel plate shearwall with large width to height ratio was clarified. The results show that the vertical alternate stiffeners can effectively delaythe out of plane buckling of the wall panel and improve the elastic buckling load of the wall panel. The vertical alternatelystiffened steel plate shear wall has excellent hysteretic performance, the tension band of the wall panel is more evenlydistributed, the value of additional bending moment caused by the horizontal component of the tension band to the column issmall, and the wall panel presents the working characteristics of medium thick plate.

Keywords:vertical alternate stiffener; steel plate shear walls with large width to height ratio; elastic buckling load; shearcapacity; stiffening coefficient

∗四川省建筑设计研究院有限公司科研项目(KYYN201803).

第一作者:樊秦川,硕士,工程师,主要从事钢结构的设计与研究,Email:17138190@ qq. com.

[引用本文] 樊秦川,龚小兵,李岩,等. 竖向交替加劲肋对大宽高比钢板剪力墙抗震性能的影响研究[ J]. 建筑结构,2023,53(7):9-17. FAN Qinchuan,GONG Xiaobing,LI Yan,et al. Study on influence of vertical alternate stiffenerson seismic performance of steel plate shear walls with large width to height ratio[ J]. Building Structure,2023,53( 7):9-17.