FINITE ELEMENT ANALYSIS OF SKEW-CURVED RC BOX GIRDER BRIDGES

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FINITE ELEMENT ANALYSIS OF SKEW-CURVED RC BOX GIRDER BRIDGES

Author: Vishhal S. Jawanjal and Manoj Kumar | Size: 194 KB | Format: PDF | Quality: Original preprint | Publisher: Birla Institute of Technology & Science, Pilani | Year: 2006 | pages: 8

Bridges are the key elements in any road network. Use of box girder bridges is gaining
popularity in bridge engineering fraternity because of its better stability, serviceability,
economy, aesthetic appearance and structural efficiency. Its rigidity against torsion under
asymmetrical loads makes it an optimum choice for bridges curved in plan or elevation.
The curved and skew box-girder bridges are common sight nowadays, however, some
times the site situation demands to go for intricate spans geometries such as skewedcurved
spans. The present paper deals with the Finite Element Analysis of simply
supported box-girder bridge curved in plan with skewed supports. In this study the finite
element analysis has been carried out using the 9-node degenerated shell element,
however, the geometry of the bridge has been modeled with the help of STAAD Pro. In
order to study the behavior of skewed-curved box-girder bridge, a 20m span Reinforced
Concrete (RC) bridge has been considered and the degrees of curvature and skewness has
been varied to study the effect of curvature and skewness on deflection, longitudinal
bending stress and shear lag.

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