T形矩管节点不同强化方式的力学性能研究

研究了矩管钢管桁架T形强化节点的基本受力特征和性能差异,借助大型通用有限元程序ADINA,建立了无强化与4种不同的强化方式共5组不同构造参数的T形连接节点数值模型,结合节点实际受力状况分别考虑单向轴力、单轴拉压作用以及拉压轴力与水平干扰力组合作用三种工况,进行了极限承载力和滞回性能的数值分析计算,得出外套管强化节点具有相对较好的综合力学性能,可为类似工程节点强化构造设计以及后续矩管桁架强化节点试验研究提供参考.

The research of mechanical properties of reinforced T-type RHS Joints

The document studies the basic mechanical and procedures mechanical properties of different reinforced T-type RHS Joints by using the finite element software ADINA.Five finite element models,one non-strengthen and four different reinforced models included,are built.Set up three work conditions based on the real working status to research the ultimate bearing capacities and the hysteretic behaviors of these joints.It is found that the external casting strengthen model has a relatively good mechanical property,which would provide a reference for similar structure design and future experiment and research of RHS Joints.