The Application And Research In The Curve Girder Bridge With Corrugated Steel Webs

Corrugated steel web box girder bridge is a new type bridge with corrugated steel, it has light weight, good durability and convenient construction compared with the traditional concrete box girder bridge. At present, Corrugated steel web box girder bridge attaches great importance to the domestic and international.Curve girder bridge has widely used in urban overpass and mountain roads and other fields,because of the corrugated steel web has more advantages, it applied to the curve box girder bridge, there will be a very good economic effect.This paper mainly around the curve of corrugated steel web girder bridge, completed the relevant mechanical properties research.Specific completed the following several aspects:1. On the basis of consulting a large number of literature, this paper sum up the loading characteristics of the corrugated steel web box girder, mainly including the axial mechanical properties, bending, shear and torsion, and analyzed the mechanical characteristics of the curve beam bridge.2. Combined with the corrugated steel web existing parameters, this paper researched the curved girder bridges parameters layout and put forward in curved girder bridge should consider the corrugated steel web interior Angle and exterior Angle difference, and analyzes the relationship between the internal and external Angle and the radius of the curved girder bridge.The curved girder Bridges with corrugated steel web of single box and room and single box double room was analyzed.3. According to the characteristics of the corrugated steel web box girder, considering the vertical deflection, web shear and torsion and external load cases, this paper deduced the total potential energy of beam when they work together. Derived the expression of bending and torsion coupling, and proposes the simplified calculation method of simply supported curve of corrugated steel web girder bridge, calculated the overturning resistance of two span continuous girder bridge.It can provide a reference for the related design.4. This paper analyzed the different thickness of corrugated web and the different wave height on the vertical deflection and the influence of the longitudinal buckling and key section stress of the corrugated steel web curve girder bridge through the finite element numerical simulation,And analyzed the Deflections and stresses of the curved girder Bridges with corrugated steel web and the influence of bearing reaction force at end surpport and the intermediate support different arrangement. And analyzed the differences of deflection and warping between the corrugated steel web and concrete web in curved girder bridge.