型钢混凝土转换桁架节点的有限元分析

Numerical Simulation of Steel Reinforced Concrete TransferTruss Joints

基于混凝土的塑性损伤模型,利用ABAQUS软件分析了某工程的大跨度型钢混凝土转换桁架节点在正常使用和大震不屈服两种情况下的应力分布,给出应力较高部位及应力大小,结果表明,该方法能够较好地实现型钢混凝土节点的非线性有限元模拟,同时对于该类重要复杂结构,地震作用对应力的提高较大。

Based on plastic damage model of concrete, u-sing ABAQUS, both in the normal service condition and the un-yieldingness condition in large earthquakes, the stress distribu-tion of a steel reinforced concrete transfer truss joint in some en-gineering was analyzed by using the calculations of SATWE. The relatively high parts of the stress and stress values were pointed out. The results show that, the method could achieve a relative-ly good nonlinear finite element simulation of steel reinforced concrete joint, and for this kind of complex structure, seismic action could cause a large increased stress.