梁格法在城市桥梁设计中的应用分析

Application analysis of grillage method in the design of urban bridges

分析了梁格法的基本原理,对梁格法应用的两个关键问题进行了讨论,即梁格划分和单元刚度计算。并通过工程案例分析了梁格法的应用,结果表明梁格法计算结果相对实体有限元具有很好的精度,具有概念清晰、易于理解和使用方便等特点,可以很好地用于城市桥梁设计计算中。

The basic principle of grillage method is analyzed,and further discussions on the critical issues of grillage method application are conducted,which include grid partition mesh and element stiffness calculation. Finally,the application of grillage method is demonstrated through a case study,and the results indicate the grillage method could yield accurate results as solid FE analysis. The grillage method has good features of clear concept,easy understanding,and simple use,thus could find wide application in the design of urban bridges.