自锚式滑板体系的设计及框构桥顶进施工控制

Design of Self-anchorage Sliding Plate System and JackingConstruction Control of Frame Bridge

以新建框构桥下穿城市主干道设计为背景,在不影响主干道交通通行及不影响下穿道路施工工期的情况下,采用自锚式滑板体系设计,解决了25.6m×51.61m大型框构桥顶进施工、就位等问题,详细介绍了施工过程中的方向、高程误差控制措施,可为类似工程的设计、施工提供参考。

Taking the design of the new frame bridge undercrossing the urban main road as the background,under the condition of not affecting the traffic of the main road and the construction period of undercrossing road,the self-anchorage sliding plate system is adopted,so as to solve the problems like jacking construction,position and so on of a 25.6m×51.61m large frame bridge.The direction and elevation error control measures during the construction are introduced in detail,so as to provide reference for the design and construction of similar projects.