Abstract: Our project deals with design and analysis and design of Bridge Sub-Structures consists of Pier, Pier cap, Abutment, Foundation. According to IRC: 6-2017. This paper aims to understand the concepts involved in the analysis and design of Flyover Substructure subjected to different loadings namely Dead load, Super Imposed Dead Loads, Carriageway Live loads. The bridges are subjected to different live load cases namely IRC Class A, IRC Class 70R wheeled& tracked. Also the braking load, impact load, wind load, longitudinal forces are to be considered in the analysis. Here the structural analysis is carried out by using STAAD Pro V8i software. Structures are designed for critical loading combinations. Moment of inertia and neutral axis are the key components in calculating the moment of resistance, however moment of resistance should always be greater than design bending moments for a structure to be safe. The Serviceability limit state checks are very essential in providing additional reinforcement to resists shear and torsion.

Keywords: Pre-stressed Concrete, Flyover, Sub-Structures, STAAD Pro, IRC Codes.

| DOI: 10.17148/IARJSET.2022.9758