建筑钢结构进展2025，Vol.27Issue(7)：54-63,10.DOI:10.13969/j.jzgjgjz.20240223001
T形钢管混凝土柱-H形钢梁侧接板式节点承载力研究
Bearing Capacity of Joints with Side-Connected Plates Between T-Shaped Concrete-Filled Steel Tubular Column and H-Shaped Steel Beam
摘要
Abstract
To study the mechanical behavior of joints between T-shaped concrete-filled steel tubular(CFST)column to H-shaped steel beam with side-connected plates,finite element simulation and theoretical analysis were conducted on the joints.Firstly,an ABAQUS finite element numerical model was established,with its rationality validated through experimental results.Based on the structural characteristics of the joints,the calculation methods of the bending capacity and shear capacity were derived,which were further verified through numerical examples.The influence of different variables on bending bearing capacity and shear bearing capacity of the joint was analyzed with the calculation formula.The results show that the proposed finite element model effectively simulates the working state and ultimate bearing capacity of the side-plate connected joints.There are four modes of the bending failure of the joints.With proper design,it can be ensured that the tensile yield failure of steel beam flange occurs first as a ductile failure mode for the joints.The shear bearing capacity of the joints with side-connected plates is composed of the shear bearing capacity of the steel tube web in panel zone and the shear bearing capacity of the concrete in joint core area.Parametric analysis indicates that the shear capacity of the steel tube web is the predominant component of the joint's overall shear bearing capacity.Both experimental outcomes and finite numerical results have validated the accuracy of the proposed formulas for calculating bending and shear capacities,providing a basis for the engineering design of such joints.关键词
T形钢管混凝土柱-H形钢梁/侧接板式节点/受力机理/受弯承载力/受剪承载力/理论分析/有限元模拟Key words
T-shaped concrete-filled steel tubular column to H-shaped steel beam/joint with side-connected plates/mechanical principle/bending bearing capacity/shear bearing capacity/theoretical analysis/finite element simulation分类
建筑与水利引用本文复制引用
程卫红,储德文,时继瑞..T形钢管混凝土柱-H形钢梁侧接板式节点承载力研究[J].建筑钢结构进展,2025,27(7):54-63,10.基金项目
兵团科技攻关项目:BXSS建筑关键技术研发与示范应用(2018AB03) （2018AB03）
