大跨悬索桥主缆防腐及内部温湿度变化机理研究综述

摘要

When the main cable of the suspension bridge is in a humid and easy corrosion environment for a long time,it is likely to be broken and influence the safety of the bridge.The corrosion of main cable steel wire and the measures to prevent corrosion status in the anchorage zone,the distribution and variation mechanism of temperature and humidity of main cable are described in detail with the re-search of domestic and foreign scholars in this paper.The main problems existing in current research are summarized and the main re-search direction in the future is defined,at the same time.Also,it can provide theoretical support and practical guidance for prolon-ging the service life of long span suspension bridges.%大跨悬索桥的主缆长期处于潮湿易腐蚀的海洋环境中及其容易生锈，以致发生断裂而影响大桥的安全性能。从桥梁主缆钢丝及锚固区的防腐措施与其腐蚀现状、主缆内部温湿度分布情况及其变化机理等方面详细阐述了国内外学者进行的一系列调查与研究。同时总结了当前研究中存在的一些主要问题，明确了今后的主要研究方向，可为延长大跨径悬索桥的使用寿命等提供理论支持和实际指导。