两边连接屈曲约束钢板墙边缘构件的受力规律-《建筑科学与工程学报》

文章信息/Info

Title:: Mechanics Laws for Boundary Elements of Buckling Restrained Steel Plate Shear Wall with Two-side Connections

Author(s):: LIU Wen-yang, LI Guo-qiang; College of Civil Engineering, Tongji University

Keywords:: buckling restrained steel plate shear wall; boundary element; mechanics law; finite element analysis; force transferring model

摘要:: 利用理论分析和有限元方法对两边连接屈曲约束钢板墙边缘构件（梁）的受力规律进行研究，提出了两边连接屈曲约束钢板墙与边缘构件的传力模型和边缘构件内力计算方法。利用等效支撑模型对所提出的边缘构件内力计算方法进行了验证，对不同层数和跨数的框架屈曲约束钢板墙结构和框架等效支撑结构进行分析，对梁、柱构件的内力进行了对比，分析了屈曲约束钢板墙布置方式对边缘构件内力、变形的影响。结果表明：所提出的方法能够准确计算屈曲约束钢板墙边缘构件的内力；建议屈曲约束钢板墙的宽度宜设计成大于跨度的1/3，并将屈曲约束钢板墙布置在跨度中间；如果屈曲约束钢板墙的宽度只能小于跨度的1/3，则宜布置在靠近梁端部。

Abstract:: The mechanics law for boundary elements of buckling restrained steel plate shear wall (BRSPSW) with two-side connections was studied using theoretical analysis and finite element method. The force transferring model and internal force calculation method for boundary elements were presented. Structural analysis of frame-BRSPSW could be conducted using proposed equivalent brace model to replace BRSPSW. In order to validate the presented method, frame-BRSPSW and frame-equivalent brace structures with different stories and different spans were analyzed. Furthermore, the comparison of internal force for beam and column was carried out, and the effects for steel plate shear wall arrangement on the internal force, deformation of boundary elements were analyzed. The results show that the equivalent brace model can accurately simulate the effect of BRSPSW to the boundary elements. The width of steel plate shear wall is recommended to be more than 1/3 of the span, and the steel plate shear wall is arranged in the middle of the span. If the width of the steel plate shear wall is less than 1/3 of the span, it should be well to be placed near the end of the beam.