独塔单索面混凝土斜拉桥换索技术研究

Study on Cable Replacement Technology of Single-pylon Single-plane Concrete Cable-stayed Bridge

由于斜拉索的防护技术不尽完善,斜拉桥在运营若干年后,不可避免地会出现斜拉索腐蚀问题。为保证桥梁安全运营,国内外一些斜拉桥不得不进行换索。通过对一座独塔单索面斜拉桥的病害状况、成因分析、换索过程及换索效果进行阐述,以期为此类斜拉桥的换索提供技术支撑。

Owing to the imperfect protection technology of cable-stayed bridge, the stayed cable will be unavoidably corroded after the cable-stayed bridge is operated for several years. To ensure the safe operation of bridge, the cables of some cable-stayed bridges have to be replaced at home and abroad.According to the analysis on the fault status and cause of a single-pylon single-plane concrete cable-stayed bridge, the article sets forth the cable replacement process and effect in order to provide the technical support for the cable replacement of the similar cable-stayed bridges.