混凝土板厚度对端板型半刚性组合节点力学性能的影响分析

Analysis of the Effect of Concrete Slab Thickness on the Mechanic Property of Semi-rigidity End Slab Composite Joint

根据目前半刚性组合节点的研究现状、连接形式及分析模型,利用有限元分析软件AN-SYS8.0建立了端板型半刚性组合节点的有限元模型,在验证模型的正确性的基础上,利用该模型分析了混凝土板厚度、对组合节点初始转动刚度、塑性极限弯矩和塑性极限转角的影响。端板型半刚性组合节点的初始转动刚度、塑性极限弯矩和塑性极限转角都随组合节点中混凝土板厚度的增加而增加。

According to the current research on the status quo, connective forms and analytical models of semi - rigidity composite joint, a finite element model of semi - rigidity end slab composite joint has been set up by the use of finite analytical software ANSYSS0. Base on the correctness of the test model, the model is used to analyze the effect of the concrete slab thickness on the initial rotation stiffness, plastic limit moment and plastic limit rotation of the composite joint. The initial rotation stiffness, plastic limit moment and plastic limit rotation angle of the semi - rigidity end slab composite joint all increase with the increase of the concrete slab thickness in the composite joint.