钢板剪力墙结构的结构影响系数研究  

RESEARCH ON STRUCTURAL INFLUENCING COEFFICIENT OF STEEL PLATE SHEAR WALL

作　　者：郑亮[1] 秦成 张大鹏 周明潭 郭宏[1] 耿少波[1] ZHENG Liang;QIN Cheng;ZHANG Dapeng;ZHOU Mingtan;GUO Hong;GENG Shaobo(School of Civil Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学土木工程学科管理部

出　　处：《工业建筑》2020年第1期154-161,共8页Industrial Construction

基　　金：国家自然科学基金青年科学基金项目(51408558)

摘　　要：现行JGJ/T 380—2015《钢板剪力墙技术规程》未给出钢板剪力墙结构的结构影响系数和位移放大系数。为此,按GB 50011—2010《建筑抗震设计规范》设计了A、B两组层数分别为4,8,12层的钢板剪力墙结构,通过Midas/Gen对在均匀和倒三角分布荷载作用下单榀和整体钢板剪力墙结构的模型进行静力弹塑性分析(Pushover),得出单榀与整体钢板剪力墙结构的位移放大系数与结构影响系数。分析表明:单榀和整体钢板剪力墙结构在均布加载模式下的结构影响系数和位移放大系数比倒三角加载模式下得到的系数大;单榀剪力墙结构的结构影响系数和位移放大系数比整体钢板剪力墙结构的相应系数大,用单榀结构计算的结构影响系数和位移放大系数不能代替整体计算的系数;建议对层数不超过12层的钢板剪力墙结构的结构影响系数和位移放大系数分别取3.25和6.45。Technical Specificatiors for Steel Plate Shear Walls(JGJ/T 380—2015)do not involve specific values for the structural influence coefficient and the displacement amplification factor of the steel plate shear wall.According to Code for Seismic Design of Buildings(GB 50011—2010),the steel plate shear wall structures of the A and B groups with 4,8,and 12 layers were designed.the displacement amplification factor and the structural influence coefficient of the single frame plane and the integrall steel shear wall structure were obtained under uniform load and inverted triangle load with Pushover analytical method by Midas/Gen.It was shown that:the structural influence coefficient and the displacement amplification factor of the single frame and the integral steel plate shear wall structure in the uniform load mode were generally larger than that in inverted triangle loading mode.The structural influence coefficient and the displacement amplification factor of the single frame shear wall structure were larger than the corresponding coefficients of the integral steel shear wall structure.The coefficient and the factor calculated by the single frame structure couldn’t replace the integral steel shear wall structure calculated coefficient.It was suggested that the structural influence coefficient and displacement amplification factor of the steel plate shear wall structure with no more than 12 layers should be 3.25 and 6.45.

关 键 词：钢板剪力墙 结构影响系数 位移放大系数 静力弹塑性分析 

分 类 号：TU398.2[建筑科学—结构工程]