摘要
根据顶底翼缘角钢半刚性连接的受力特性、变形特点和破坏形态,对顶底翼缘角钢半刚性连接的初始刚度和极限承载力进行了研究。利用组件法和最小值法对顶底翼缘角钢半刚性连接的初始刚度和极限承载力进行了理论推导,得到了解析表达式和拟合公式,并与试验数据进行了对比分析。研究结果表明:所提出的拟合表达式能够较为准确地计算出顶底翼缘角钢半刚性连接的初始刚度和极限承载力,且与试验数据吻合较好,为此类半刚性连接的实用计算方法创造了条件。
In this paper, the initial stiffness and ultimate bearing capacity of top-and seat angle semi rigid connections were studied based on the mechanical properties,deformation characteristics and failure modes of top and seat angle semi rigid connections. Formulas on initial stiffness and ultimate bearing capacity of top-and-seat angle semi-rigid connections were derived utilizing component method and minimum value method. Numerical solution and fitted formula were obtained, and the predictions from these formulas were compared with test data. The comparison indicates that test data on the initial stiffness and ultimate capacity have good agreements with the predictions using formulas. Thus the formulas proposed in this paper may provide an effective approach for evaluating such semi-rigid connections.
出处
《建筑钢结构进展》
北大核心
2014年第1期7-14,共8页
Progress in Steel Building Structures
基金
<钢结构设计规范>国家标准管理组科研专项课题
关键词
顶底翼缘角钢
半刚性连接
初始刚度
极限承载力
top-and-seat angle
semi rigid connection
initial stiffness
ultimate bearing capacity
