结构工程师2012，Vol.28Issue(1)：37-44,8.
加劲肋对钢管相贯节点力学性能的影响
Influence of Stiffeners on Mechanical Behavior of Steel Tubular Joints
摘要
Abstract
Strengthening with stiffeners could strongly enhance the stiffness and the ultimate bearing capacity of steel tubular intersecting joints. Accordingly, it will benefit the reliability of the joint and the overall stability of the structure. The factors of the stiffener such as the plane dimensions, shape, thickness and whether or not penetrating the pipe member have considerable impacts on the stiffness, bearing capacity and ductility of joints. In order to investigate the influence of the mentioned factors, a full-scale experiment and a series of finite element modeling were conducted. A few conclusions can be made from the experiment and the FEM results. First, the tubular joints strengthened by stiffeners have higher stiffness and bearing capacity than those without stiffeners. In addition, appropriate magnitude of α for those joints with stiffeners welded on the surface of the tube is 0. 5 ~ 1. 0, while appropriate magnitude of α for those joints with stiffeners penetrating the tube is 0. 5 ~0. 8. Finally, the magnitude of β, the ratio of the length of the stiffener and the diameter of the tube, is suggested to be 0. 6 ~ 1.关键词
加劲肋/钢管结构/钢管相贯节点/有限元分析Key words
stiffener/steel tubular structure/steel tubular joint/finite element modeling.引用本文复制引用
罗永峰,郑博通,郭小农..加劲肋对钢管相贯节点力学性能的影响[J].结构工程师,2012,28(1):37-44,8.基金项目
高耸与复杂钢结构检测与鉴定技术标准(2009-1-86) （2009-1-86）
