竹埠港湘江特大桥是湘潭～邵阳高速公路上最大的一座特大桥 ,为分离式双幅桥。根据地形地貌的情况 ,西引桥 8× 4 2 m预应力连续箱梁采用多点顶推法施工。重点介绍箱梁段施工平台布置 ,钢导梁的安装与连接 ,支承滑道 ,牵引装置 ,工艺流程 ,顶推操作 ,起落梁及支座安装等 Zhujiang Port Xiangjiang River Bridge is the largest in Xiangtan ~ Shaoyang Expressway a large bridge for the separation of double bridge. According to the topography and geomorphology, the construction of 8 × 4 2 m prestressed continuous box girder of Xifiao Bridge was carried out by multi-point push-in method. Emphasis will be placed on the installation of the box girder construction platform, the installation and connection of the steel guide beam, the support slide, the traction device, the technological process, the pushing operation, the landing beam and the support installation