港口道路箱涵结构有限元简化分析

Simplified FEM Analysis On The Structure Of The Harbor Pavement's Box Culvert

港口道路箱涵的车辆荷载比较大,当上覆填土厚度为0时,采用传统的结构力学计算方法得到的内力过于偏大,现通过采用shell43壳体单元,建立有限元模型,模拟车辆荷载的实际作用面积,对箱涵内力进行分析,并与传统的计算方法进行比较。

Vehicle load on the box culvert of port road is usually very large. When the height of the covering soil is zero, the internal force is bigger than the real value when calculated by the traditional method.By adopting shell43 element and through Finite Element Method （FEM） , the real acting area of the vehicle load is simulated,the internal force is analyzed, and it is compared with the traditional method.