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本文从平面曲梁桥的混合微分方程组出发,用样条积分配点法来求得平面曲梁内力和位移数值的解。但平面曲梁轴线可以是多心圆或S形曲线,也可以是静定或超静定结构,还可以是变刚度的结构。而文中给出了几种桥型的计算实例,与解析法作了比较,其内力和位移位的精度都是相当高的。以供参考。
In this paper, we start from the mixed differential equations of a planar curved beam bridge and derive the solutions of the internal forces and displacements of the planar curved beam by using the spline product distribution point method. But the plane curved beam axis can be a multi-circle or S-shaped curve, can also be statically or statically indeterminate structure, but also can be a variable stiffness structure. In the paper, several calculation examples of bridge types are given, which are compared with the analytical method. The precision of internal force and displacement is quite high. for reference.