Analysis of Box Girder Bridges Using Haunches

Abstract

A bridge is a structure providing passage over an obstacle without closing the way beneath. Recent developments in the field of Bridge engineering, Box Girder Bridges have heightened the need for improving the ability to carry the live load and undertaken as a result of code provisions .In this project deals with response of haunches in box girder bridges when subjected to standard moving load. Analysis of box girder bridges can be accurately done by finite element method. Maximum bending moment occurs at the junctions of box girder, therefore provision of haunches at junctions may lead to economic solution.
In this study it is proposed to develop finite element method for analysis of box girder with haunches. Parametric investigations will be performed for box type of bridges with and without haunches Span range is more for box bridge girder as compare to T-beam Girder Bridge resulting in comparatively lesser number of piers for the same valley width and hence results in economy. Effect of haunches on the performance of bridge girder will be studied and optimum size of haunches for various spans will be evaluated.