干燥空气除湿方法在悬索桥主缆防腐中的应用  

Application of Dry Air Dehumidification System on Main Cable Anticorrosion of Suspension Bridge

作　　者：牛小龙[1] 杨奉举[1] 

机构地区：[1]中铁大桥勘测设计院集团有限公司,武汉430050

出　　处：《交通科技》2013年第2期58-61,共4页Transportation Science & Technology

摘　　要：主缆是悬索桥最重要的受力构件之一,它长期暴露在大气环境中,经受着各种不利环境的侵蚀。同时,由于主缆为不可更换构件,因此主缆的寿命直接影响悬索桥的使用年限。干燥空气除湿方法是通过向主缆内部输入干燥空气,使主缆内部的相对湿度保持在某一临界值之下,从而解决了主缆内部积水问题,达到主缆系统的防腐效果。文中介绍了干燥空气除湿方法在悬索桥主缆防腐中的应用,以及除湿系统安装过程中应注意的事项。Main cable is one of the most important components of suspension bridge.As been exposed to the nature,the main cables are affected by all kinds of disadvantage environmental conditions.Meanwhile,as the main cable can not be replaced,the life of main cable is to affect the bridge service life directly.Dry air dehumidification system is by blowing dry air into the main cables in order to keep the relative humidity of the atmosphere in the cables under one critical value,so waterlogging problems in the cables are solved.This paper introduces the application of dry air dehumidification system on main cable anticorrosion of suspension bridge and suggests some items to be noticed during the installation process of this system.

关 键 词：悬索桥 主缆 防护 除湿系统 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]