结构工程师2026，Vol.42Issue(1)：120-127,8.DOI:10.15935/j.cnki.jggcs.202601.0015
使用改进端板连接节点的钢框架力学性能试验研究
Experimental Study on Mechanical Performance of Steel Frame Connected by Improved End-Plate Joint
方瑜 1吴祖咸 1于明 1段雄 2罗金辉 2郭小农2
作者信息
- 1. 浙江华云电力工程设计咨询有限公司,杭州 310000
- 2. 同济大学土木工程学院,上海 200092
- 折叠
摘要
Abstract
At present,conventional end-plate connections can only join H-shaped steel beams to the strong axis of H-shaped steel columns.This paper presents an improved end-plate connection:by installing special stiffeners in the weak axis direction of the H-shaped steel column,frame beams in both directions can be connected to the column using identical end-plate joints.The study focuses on examining the influence of these special stiffeners on the mechanical behavior of the frame along its strong axis.Two single-story,single-bay steel frames—one braced and one unbraced-were designed,both incorporating the improved connection.Monotonic lateral loading tests were carried out to assess the mechanical performance,and the internal forces and deformations of the two specimens were analyzed.Results indicate that the shear deformation in the joint core area is significantly reduced when using the improved end-plate connection.The addition of bracing notably enhances the stiffness and load-bearing capacity of the frame;however,it also alters the failure mode from bending of the end-plate to tensile fracture of the brace net section,which substantially reduces the ductility of the frame.关键词
钢框架/端板节点/刚度/极限承载力/延性Key words
steel frame/end-plate joint/stiffness equation/ultimate bearing capacity/ductility分类
建筑与水利引用本文复制引用
方瑜,吴祖咸,于明,段雄,罗金辉,郭小农..使用改进端板连接节点的钢框架力学性能试验研究[J].结构工程师,2026,42(1):120-127,8.
