Research on Horizontal Displacement and Positioning Technology of Multi Type Prefabricated Box Girders for High-Speed Railway Bridge-Style Stations
There are various types of beams distributed horizontally in high-speed railway bridge-style stations,which are limited in space and difficult to directly use bridge erecting machines for positioning.Therefore,the in-situ casting method of supports or the low position casting and high position lateral displacement method are often used for construction,which has disadvantages such as long cycle,high cost,low efficiency and poor accuracy of beam body adjustment.The article takes the construction of the Huanjiang Station on the newly-built Guiyang-Nanning High-speed Railway(hereinafter referred to as"Guinan High-speed Railway")as the background,introduces the devices and methods for horizontally moving and positioning three different beam types on the same bridge span of the Huanjiang Station,and based on the coordinate transformation equation constructed by the anti symmetric matrix,proposes the relationship between the beam attitude response and the displacement of the adjustment jack,which makes up for the shortcomings of existing technology and has important guiding significance and promotion value for similar projects.
bridge-style stationprefabricatedmulti type box girderhorizontal displacement and positioningbeam posture
万方数据
维普
