摘要
过小的边缘构件截面易出现钢板剪力墙的内拉现象,难以充分发挥防屈曲钢板剪力墙的抗震性能,边缘构件截面设计与其内力需求相关,分析边缘柱的内力需求显得尤为必要。基于提出的带多块混凝土板的防屈曲钢板剪力墙,本文理论推导了带多块混凝土板的防屈曲钢板剪力墙边缘柱内力的解析计算表达式,结合已开展的带多块水平拼装的混凝土板的防屈曲钢板剪力墙试验研究,建立并验证了其数值模型,进一步对比了数值分析和解析计算得到的边缘柱的内力分布情况。研究结果表明,带多块混凝土板的防屈曲钢板剪力墙的内藏钢板划分为约束区域和非约束区域。边缘柱的轴力、剪力及弯矩分布的解析计算结果与数值分析结果较为接近,边缘柱的内力计算表达式正确。研究成果可为该类钢板剪力墙的设计提供参考。
Small cross-sections of boundary elements easily induce the“internal tension”phenomenon of steel plate shear walls,making it difficult to fully utilize the seismic performance of buckling-restrained steel plate shear walls.The design of cross-sections of boundary elements is related to their internal force requirements,and analyzing the internal force requirements of boundary columns is meaningful.Based on the proposed buckling-restrained steel plate shear wall with multi-concrete panels(MBRSPSW),the analytical expressions for the internal force of the boundary column of the MBRSPSW were theoretically derived in this paper.Combined with the experimental research on the buckling-restrained steel plate shear wall horizontally assembled multi-concrete panels(H-MBRSPSW),its numerical model was established and verified.The internal force distributions of the boundary column obtained from numerical analysis and analytical calculation were further compared.The research results indicate that the inner steel plates in the MBRSPSW are divided into constrained regions and unconstrained regions.The axial force,shear force,and bending moment distributions of the boundary column from the analytical calculation results agree with those from the numerical analysis results,and the internal force calculation expressions of the boundary column are correct.The research results can provide a reference for the design of this category of steel plate shear walls.
作者
韩启浩
李俊如
汪大洋
赵宇飞
HAN Qihao;LI Junru;WANG Dayang;ZHAO Yufei(School of Civil and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;School of Civil Engineering,Guangzhou University,Guangzhou 510006,China)
出处
《计算力学学报》
北大核心
2025年第5期831-838,共8页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金(52378496,52178467)
江西省自然科学基金(20242BAB20226)
江西省教育厅项目(GJJ210858)
江西理工大学高层次人才项目(2021001)资助.
关键词
防屈曲钢板剪力墙
多块混凝土板
边缘柱
内力需求
解析计算
buckling-restrained steel plate shear wall
multi-concrete panels
boundary columns
internal forces demand
analytical calculation
