桥墩计算长度系数的有限元计算法

Finite Element Calculation Method of Calculating Length Coefficient of Bridge Pier

考虑桥梁上部结构及下部桩基础对桥墩的约束影响,提出桥墩计算长度系数的有限元计算方法,根据稳定方程得出桥墩计算长度系数。通过实例计算表明计算结果与实际工程一致;利用有限元计算法可较为准确的得到计算长度系数,为工程设计应用提供借鉴。

The article considers the constraint influence of bridge superstructure and sub-pile foundation on the bridge pier, and puts forward the finite element calculation method of calculating length coefficient of pier. Based on the stability equation, the calculating length coefficient of pier is obtained. The calculation of examples shows that the calculation result agrees with the actual project. The use of finite element calculation method can more correctly obtain the calculating length coefficient, which can be referred for the engineering design application.