Paper Details

Integral abutment bridges establish a monolithic connection between bridge superstructure and substructure, theydo not have bearings to accommodate horizontal movements induced in bridge superstructure. The motivation that madethese bridges popular is it reduces maintenance cost produced due to leakages and deterioration of structure. The uncertaintyof integral bridges are the continuity in structural members leading to the development of thermal stresses and since thehorizontal movements are restrained the lateral pressure in soil behind the abutment increases. Apart from these issues,behavior of skew integral bridges is different than the straight joint-less bridge in case of load distribution pattern.To gain better understanding of behaviorskew bridges a 3D finite element model is developed in STAAD Pro. Software, deadload is applied on bridge and vehicular load is introduced using STAAD Beava software. The study was carried out forperformance of bridge deck and longitudinal girder in terms of bending moment, shear force, deflection and torsional momentfor different skew angles. With introducing skew in bridge the bending moment, shear force and torsion in the deck due todead load and live load increases from straight to 30ᵒ skew bridge and further it reduces. Whereas deflection along the deckreduces with increase in skew.

Priyanka G Patil, Manjunath M, “BEHAVIOR OF SKEW INTEGRAL BRIDGES”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 3, Issue 8, pp. 69-76, August 2016.