大胜关长江大桥钢轨伸缩调节器选型及养护探讨

设置钢轨伸缩调节器是解决桥梁结构与钢轨变化不一致的主要方法.文章结合京沪高速南京大胜关大桥工程,全面系统地分析国内外高速铁路钢轨伸缩调节器的主要类型,并对300km/h SA60-1200（B）型钢轨伸缩调节器的日常养护及遇到的问题进行探讨,供类似工程参考.

Research on Expansion Joint Selection and Maintenance for Dashengguan Yangtze River Bridge

To solve the incoordination change between bridge structure and steel rail, setting expansion joint is the main method. Combining with Dashengguan Yangtze river bridge engineering of Jinghu high-speed railway in Nanjing, this paper introduces expansion joint types of high-speed railway at home and abroad comprehensively and systematically, analyzes daily maintenance and problems of expansion joint 300km/h SA60-1200（B） which could be taken as reference for similar engineering.