有限元分析在12m标准轨道衡承重梁设计中的应用

Application of the Finite Element Analysis in Designing Bearing Beam of the 12m Standard Weighing-in-motion Bridge

在12 m标准轨道衡承重梁设计过程中采用有限元分析,利用Ansys建立承重梁的几何模型和以壳单元shell63为基本单元的承重梁有限元计算模型。计算模型在不同载荷作用下的最大应力以及变形情况,提出在不改变主体结构的情况下对承重梁进行加固。此方法可为12 m标准轨道衡承重梁的结构设计和改进提供理论依据。

The finite element analysis is applied to the design of bearing beam of the 12m standard weighing-inmotion bridge. The authors use Ansys to establish the geometric model of the bearing beams, and build the finiteelement analysis model with the shell63 element for the bearing beams. Based on the above models, the authors calculate the maximum stress and the deformation with different loads, give the idea of strengthening the beating beam without changing the main structure. This method can provide theoretical basis for designing and improving the structure of the bearing beams of the 12m standard weigh-in-motion bridge.