• Vivek P. Joshi
• Ronak S. Gajjar
• Javal J. Patel
• Prakash M. Joshi

Horizontally curved bridges are the most feasible options at complicated interchanges or river crossings where geometric restrictions and constraint of limited site space, make difficult the adoption of standard straight superstructures. Usually these bridges are of cellular cross section so that high torsion moment can be well resisted economically. Contrary to straight bridges, a very limited documentation on the study of horizontally curved bridges has been available. In the current specifications of IRC, no separate guideline is available for the curved bridge except consideration of torsion moment. The aim and objective of the work is to carry out comparison between Equivalent line model and Finite Element model on the basis of horizontally curved concrete box Girder Bridge of 50 m, 60 m 70 m radius and for 20 m to 30 m length span at 2 m interval in CSiBridge software. In order to validate the finite element modeling method, an example of curved box Girder Bridge is selected from literature to conduct a validation study. The example box girder is modelled and analysed in CSiBridge and the responses are found to be fairly matching with the results reported in literature. After analysis and comparison it is concluded that the shear force values obtained from the Equivalent line model and FEM are not varying much which is due to fact that the total force acting on section is same in both modelling. For a given length and radius the variation between line model and FEM are higher for torsion compared to Bending Moment.

Curved Span, Box Girder Bridges, FEM, Equivalent line model, torsion

"COMPARATIVE STUDY OF CURVED BOX GIRDER BRIDGE USING FINITE ELEMENT METHOD AND EQUIVALENT LINE METHOD", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.624-629, March-2019, Available :http://www.jetir.org/papers/JETIR1903G86.pdf

"COMPARATIVE STUDY OF CURVED BOX GIRDER BRIDGE USING FINITE ELEMENT METHOD AND EQUIVALENT LINE METHOD", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp624-629, March-2019, Available at : http://www.jetir.org/papers/JETIR1903G86.pdf