Experimental Analysis of through Type Steel Bridge by using SAP2000

Steel bridges are widely used around the world in different structural forms with different span length, such as highway bridges, railway bridges, and footbridges. The main advantages of structural steel over other construction materials are its strength, ductility, easy fabrication, and rapid construction. It has a much higher strength in both tension and compression than concrete, and relatively good strength to cost ratio and stiffness to weight ratio. Steel is a versatile and effective material that provides efficient and sustainable solutions for bridge construction, particularly for long span bridges or bridges requiring enhanced seismic performance. The structural steel for steel bridges should be selected according to the required material properties or the stress state where used, environmental conditions at the construction site, corrosion protection method, construction method, etc. (JSCE, 2007). The physical properties of structural steel such as strength, ductility, toughness, weldability, weather resistance, chemical composition, shape, size, and surface characteristics are important factors for designing and construction of steel bridges. Three categories of structural steel are often used for steel bridge construction including carbon steel, high strength steels, and heat-treated carbon steels (Kumar and Kumar, 2014). The analysis of a single span two lane composite bridge is carried out. The scope of this study is to confine to the design aspect related to variable parameters.Vary the Height to Span Ratio (H/L) of Through truss bridge and check the deflation of Deck slab. Depth of web, thickness of web, width of flange are the variable parameters considered during the design of Stringers of Steel Bridge by using SAP2000 v14 the bridge models are subjected to the IRC class AA Tracked loading system and concluded that with the increase in shear force, bending moment and deflection in the girder and variation of stresses in slab. In this study, 10 different bridge span lengths 40m, 60m, 80m, 100m and 1200m were studied for different H/L ratio for IRC loading. Thickness of stringer beam also vary 16mm to 30mm for parametric study.