随着我国交通事业的不断发展,以及目前超载现场的严重,部分跨河、跨江桥梁已出现不同损坏,成为危桥,既不满足目前交通量的增长,也给交通安全带来了隐患,需要进行拆除重建。本文以广清高速流溪河大桥为研究对象,从不同的工况对T型悬臂箱梁在拆除过程中的结构应力状态进行分析,为类似工程施工提供借鉴。 With the continuous development of China’s transport industry and the severe overload scene at present, some cross-river and cross-river bridges have been damaged differently and become dangerous bridges, which neither meet the current traffic growth nor bring hidden dangers to traffic safety. Need to be demolished and rebuilt. In this paper, the Guangzhou-Qinghai-Tibet high-speed Liuxi River Bridge as the research object, from different conditions on the T-shaped cantilever box girder in the demolition process of structural stress analysis for similar projects to provide reference.