Analysis on Construction Control for High-speed Railway Arched Steel Truss Beam Bridge Erected by Incremental Launching and Pulling Method
In order to analyze the applicable construction methods of high-speed railway arched steel truss beam bridge,this paper takes a specific project as an example to compare and select the construction scheme according to the actual situation of the bridge,and discusses the key construction control points of the incremental launching support method.MIDAS/Civil software is used to construct the finite element analysis model of the bridge to simulate structural deformation,guide beam deformation,main truss deformation,and stress during construction.The results show that the incremental launching support method is very suitable for the erection construction of arched steel truss beam segment of river-crossing high-speed railway.Through the construction process control,the strain and deformation of the steel truss beam structure have not exceeded the allowable limit,and the structural strength,stiffness,stability and construction process safety are guaranteed.
incremental launching and pulling methodhigh-speed railwayarched steel truss beam bridgeconstruction control
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