Taking the construction trestle of Ma'anshan Yangtze River Highway and Railway Bridge as a case study,this paper analyzed the design points and structural characteristics of the construction trestle.The trestle structure innovatively designs a detachable pile head,which facilitates the installation of steel pipe piles and the reuse of steel pipe piles.The abutment adopts a steel pipe pile+baffle structure,which not only fully utilizes the lateral bending resistance of the steel pipe piles,but also effectively saves the structural materials of the retaining wall.A finite element calculation model was established to analyze the stress and deformation of the trestle under various lateral and vertical loads,and the calculation results met the requirements.The research findings have certain promotional and referential significance for the design of trestles under similar conditions of large variations in riverbed elevation and strong scour.
construction trestledetachable pile headfinite element calculation modeltrestle design
维普
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