Analysis of Prestressed Solid And Voided Slab type Bridge Superstructure on Curved Alignment
Keywords:
Prestressed Slab Type Bridge Superstructure, Solid Slab, and voided slab, Curved Alignment, STAAD ProAbstract
When Solid slab becomes uneconomical we have to go for the next alternative to make our deck economical as well as
safe. The object of the paper is to analyze prestressed horizontal curved solid and voided slab for 25m bridge span
using grillage analogy method. The analysis presented illustrates the behavior of bending moments, Shear Force,
displacement due to change in curvature for various load conditions of solid and voided deck slab. Slab analyzed
under various loading conditions as per IRC and results has been compared to know the effect of the curvature on
bridge deck. Width of the deck slab keep constant (12m) for various degree of curvature (15°, 30°, 45°, 60°) and
analysis has been done in STAAD Pro. In each analysis, the behavior of deck slabs was investigated, and maximum
bending moment, max shear forces and displacement developed in members were observed.