悬索桥主缆设计

The Main Cable Design of Suspension Bridge

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。

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.