冷弯薄壁型钢节点静力试验研究及分析

Static Test Study and Analysis on Cold-formed Thin-wall Steel Joints

冷弯薄壁型钢结构自重轻、构件截面特性好,工业化程度高,广泛应用于各类工业和民用建筑。节点作为这种结构形式的重要组成部分,对其结构性能的发挥起到了关键作用。进行了焊缝连接节点和自攻螺钉连接节点两组试验,对其破坏过程、弯矩-转角关系以及承载力等方面进行了分析,得到了关于冷弯薄壁型钢节点的有益结论。试验结果与有限元分析结果比较一致。

Cold-formed thin-wall steel structure is used in building constructions extensively because it has light own weight,good sections and high industrialization.As one of the most important parts of the structure joint plays the key role for structural performance.Study was done on two groups of joints based on experiments,experiments.One group includes welding joints and the other includes tapping screw.The destructive process,the load-rotation relationships and the bearing capacities had been contrasted and analyzed.Some beneficial conclusions were Obtained.The testing results and the result of ANSYS are consistent.