摘要
钢框架梁柱弱轴双腹板底角钢连接是一种典型的半刚性连接,为研究此种半刚性连接的受力性能,引用欧洲规范Eurocode3采用的组件法来计算各纯钢连接的初始刚度,再计算出各组件的极限承载能力,并选取最小值作为连接的极限承载力。以Lima的试验为基础,建立有限元分析模型,模型的几何尺寸、材料特性、摩擦系数等几何参数均与试验相同。结果表明,理论计算结果、模拟结果与试验结果较吻合。弱轴双腹板底角钢连接具有良好的变形能力和一定的抗弯能力。
Beam-to-column seat angle with double web angles are a typical semi-rigid connection in steel frames.This paper cited the component method in Eurocode 3 specification to measure each element’s initial stiffness.Compared with the ultimate load-bearing capacity of its components,the minimum was selected.The finite element model which taking experimental parameters, was established, based on the Lima’s experiment.That the simulation results agree well with the experimental ones, it indicates that the seat angle with double web angles minor axis connections demonstrates good rotation capacity and certain moment capacity.
出处
《钢结构》
2013年第7期16-19,共4页
Steel Construction
关键词
双腹板底角钢
半刚性连接
初始刚度
有限元模型
seat angle with double web angles
semi-rigid connection
initial stiffness
finite element model
