混凝土拱涵的优化设计

Optimum Design of Concrete Arch Culvert

针对常规混凝土拱涵材料用量大的问题,介绍了新颖的拱涵结构形式,应用遗传算法对拱涵的轴线进行了优化设计,得到受力合理的拱轴线坐标,拱圈各截面弯矩均比较小,使涵洞结构简单,施工方便,达到节省材料、加快施工速度、降低工程造价的目的。

The routine concrete arch culvert, which needs much concrete, is composed of the arch ring, the arch protection, the side-wall and the base. This article adopts new structure to take off arch protection and the side-wall. The arch culvert is composed of two parts of the arch ring and the inte- gral plate base. The optimum design uses the genetic algorithm to obtain the rational arch axis. The bending moment on the cross section is small. The culvert structure is simple. And the construction is convenient.