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  

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

作　　者：樊秦川 龚小兵 李岩 郭昌灵 何飞 FAN Qinchuan;GONG Xiaobing;LI Yan;GUO Changling;HE Fei(Sichuan Provincial Architectural Design and Research Institute Co.,Ltd.,Chengdu 610095,China;Complex Structure Design and Research Center,Sichuan Provincial Architectural Design and Research Institute Co.,Ltd.,Chengdu 610095,China)

机构地区：[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

出　　处：《建筑结构》2023年第7期9-17,共9页Building Structure

基　　金：四川省建筑设计研究院有限公司科研项目(KYYN201803)。

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

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 

分 类 号：TU392.4[建筑科学—结构工程]