悬索桥主缆设计

悬索桥因其主缆受拉力,材料利用效率高,己成为特大跨度桥梁的首选桥型。悬索桥尤其是大跨悬索桥的柔性特点,使其线形易受到施工现场条件、临时设施和环境温度的影响,因此主缆设计是悬索桥合理设计的关键。本文将以白鹤滩电站三滩悬索钢桥工程为例,从跨度、矢跨比、锚碇位置、主缆截面等方面对主缆设计进行介绍。

The Main Cable Design of Suspension Bridge

Because of the main cable of suspension bridge is tensioned, and its material is utilized efficiently, it has become the preferred type of large span bridge. Suspension bridges es- pecially flexible characteristics of long-span suspension bridge, the linear easily affected by the construction site conditions, te- mporary facilities and environment temperature, so the main c- able design is the key to the rational design of suspension br- idge. This paper will take Baihetan hydropower station three beach self-anchored suspension bridge project as an example, introduces the main cable design from the aspects of span, ris- e-span ratio, anchor position and the main cable section.