COMPARATIVE STUDY ON VARIOUS CONFIGURATION OF STEEL TRUSS BRIDGES FOR DIFFERENT SPANS

Truss girder bridges owning to its rigid nature have load-bearing trusses in their superstructure to transfer its load. In truss bridges, steel members facilitate easy dissipation of forces in the truss. In the present study built-up section is used for the comparison of different type of truss configuration K-Truss, Pratt Truss, and Warren Truss for different span length of 40m, 50m, and 60m. The design and structural analysis of all the configuration of the Truss Girder Bridge is carried out on “MIDASCIVIL” software. Most of the Truss Girder Bridges are generally designed with an assumption that all the applied loads on the structures are static and the effect of the wind load is neglected. As a result, ignorance of the wind load during analysis might become the reason for disaster thus it is planned to perform wind analysis on the different configuration of Truss Girder Bridge for varying lengths of 40m, 50m, and 60m. Also, the most economical truss configuration of the Truss Girder Bridge is required to be identified for the different span lengths.