COMPARISON OF SIMPLY SUPPORTED AND CONTINUOUS BOX GIRDERS

‘Nation’s development depends on the Infrastructure growth’. In the current trend a lot of importance is being given to the infrastructure development by the central and state governments. Currently, a lot of National Highways are being proposed, upgraded by the National Highways Authority of India and the State Highways are being developed by respective State governments. Bridges / Flyovers / Road Over Bridges / Road under Bridges play vital role in the planning and construction of Highways. Box girder type of Bridge is the most advanced type of Bridge superstructure and it provides the best features of aesthetics, comforts & economy over the other types of superstructure for longer spans. But as per the design trend a lot of simply supported box girders were proposed against the same span compared to that of continuous box girders even though the continuous box girder superstructures are more economical. In this project the effort was made to compare the analysis (Shear force and Bending moments) of simply supported and continuous box girders and to enable the option of choosing the best type of Highway structure to meet the comfort, safety and economic considerations of the Highways