Based on basic principles of grillage method , an improved grillage model of wide cantilevers bridge deck is brought forth and its effectiveness is verified after generalizing rules of grillage meshing and sectional characteristic 基于梁格法的基本原理,提出了寬翼緣上部結(jié)構(gòu)分析的改進梁格模型,并總結(jié)了梁格單元劃分和截面特性計算的一般方法,最后通過算例驗證了該模型和方法的有效性。