正交异性钢桥面数值计算中网格划分对精度的影响研究

Influence Research of Meshing on Accuracy in Numerical Calculation of Orthotropic Steel Deck

针对有限元数值模拟计算中,网格划分尺寸影响计算精度的问题,采用不同单元尺寸对正交异性钢结构典型疲劳细节进行数值模拟。分析表明:网格划分尺寸对计算结果影响显著,铺装层、顶板、U肋、横隔板弧形切口的合理网格划分尺寸分别为8 mm、4 mm、8 mm、4 mm。

In order to solve the problem that mesh size affects the accuracy of finite element numerical simulation,different element sizes are used to simulate the typical fatigue details of orthotropic steel structures.The results show that the mesh size has a significant influence on the calculation results.And the reasonable mesh size of pavement,roof,U-rib and diaphragm arc notches is 8 mm,4 mm,8 mm and 4 mm.