曲线桥梁几何设计

公路桥梁设计中位于曲线上的桥梁几何设计比较繁琐，既要照顾到纵横线形符合规范要求，又要与布孔及桥梁结构设计相适应，还要考虑到施工的可操作性。主要介绍了含有直线、缓和曲线、圆曲线的曲线桥梁几何设计，并结合工程实例提出了装配式梁桥在设计和施工中处理桥面超高，加宽的一些实用办法。

Geometric design of curved bridge

The geometric design of curved bridge in the highway bridge design is complicated. Not only the cross line shape should meet the demands of codes but also arrangement of pores should adapt to bridge structure design. At the same time the operability of construction should be considered. In order to meet the demands of line's type design over high and broadened bridges always be encountered. In this article the geometric design of curved bridges with straight line, easement curve and circle curve are mainly introduced. And combined with engineering some applicative methods of using fabricated bridge to treat over high and broadened deck are proposed.