• Vraj J. Shah
• A. R. Darji
• K. B. Parikh

Bridge is life line of road network, both in urban and rural areas. With rapid technology growth the conventional bridge has been replaced by innovative cost effective structural system. Box girders, have gained wide acceptance in freeway and bridge systems due to their structural efficiency, better stability, serviceability, economy of construction and pleasing aesthetics. Box girder design is more complicated as structure is more complex. Bridge design is an important as well as complex approach of structural engineer. The construction of curved span girder bridges in interchanges of modern highway system has become increasingly popular for economic and aesthetic reasons in many countries over the world. Particularly in India especially in growing cities such bridges of curved alignment have been used in the design of crowded urban areas where the multilevel interchanges must be built with inflexible geometric restrictions. Because of the addition of curvature, the design and the construction of curved box girder bridges is significantly more complicated than that of the straight bridges. With this aim the Parametric Study on Curved Span Box Girder Bridges considering the curved geometry for analysis and IRC: 112 CODE OF PRACTICE FOR CONCRETE ROAD BRIDGES for the design is performed. Span of Curved Bridge is 35 m consider. Carriage way width is 7.5 m having two lanes for that Single cell Box girder section & Carriage way width is 11.25 m having three lanes for that Double cell Box girder section is considered. Analysis and Design for Eight complete models of 100 m Radius curvature, 75 m Radius curvature, 50 m Radius curvature & Straight Span are to be prepared keeping the same depth 2.4 m of box girder cross section. The grade of concrete is 50 N/mm2 and grade of steel is 500 N/mm2. Analysis & Design is carried out using CSI Bridge 2015. On the completion of Analysis and Design; graphical relation between various parameters is prepared which in turn which will be useful to the structural designers for understanding of structural and economical aspects of curved box girder bridges. The graphical presentation of results includes comparison of shear force, bending moment, twisting moment, Prestressing Steel quantity, and Cost of Steel & Concrete.

Curved Box Girder Bridges, PSC BOX Girders, IRC: 112

"Parametric Study Of Curved Span PSC Box Girder Bridges As Per IRC: 112: 2011", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.3, Issue 6, page no.177-182, June-2016, Available :http://www.jetir.org/papers/JETIR1606029.pdf

"Parametric Study Of Curved Span PSC Box Girder Bridges As Per IRC: 112: 2011", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.3, Issue 6, page no. pp177-182, June-2016, Available at : http://www.jetir.org/papers/JETIR1606029.pdf