• Namrata A. Salvi
• P. R. Barbude
• S. A. Rasal
• R. R. Rele

Prestressed cantilever pier caps are crucial structural components in modern bridge engineering, providing support stability and controlling deformation in bridge decks. The present study investigates the design and analysis of a prestressed cantilever pier cap using CSI Bridge software to evaluate the structural impact of prestressing tendons on both bridge deck deformation and bearing performance. A comprehensive design procedure is established, combining manual analytical calculations with finite element modeling (FEM). Prestress forces and their spatial distribution within the pier cap are determined and incorporated into the CSI Bridge model. Structural response including stress distribution, displacement profiles, and support reactions is examined under varied loading scenarios. Comparative assessments between theoretical results and CSI Bridge simulations are performed to verify accuracy and reliability of software predictions regarding prestress effects. Particular emphasis is placed on how prestressing influences deck deflection and bearing reaction behavior, offering insight into deformation control and support demands. Key findings from the present study demonstrate that appropriately arranged prestressing tendons can significantly reduce deck deflection, optimize bearing load distributions, and enhance overall structural durability, all while maintaining efficient use of material. Results confirm a close correlation between manual and software-based calculations when modeling assumptions align. Where discrepancies arise, they highlight the importance of refined tendon layout design and careful interpretation of software limitations. The present study contributes a practical engineering workflow for pier cap design that bridges theoretical design principles with applied software modeling. Recommendations are provided for tendon placement strategies, modeling fidelity in CSI Bridge, and aligning analysis outputs with recognized concrete design codes (e.g. AASHTO, Eurocode, IRC). Ultimately, this work aims to advance the reliability, economy, and structural performance of prestressed cantilever pier caps in modern bridge engineering.

Prestressed Cantilever Pier Cap, CSI Bridge Software, Deck Deformation, Bridge Bearings, Structural Analysis, Prestressing Tendons, Finite Element Modelling.

"Design and Analysis of Prestressed Cantilever Pier Caps: For Gravity Loads using CSi Bridge Software", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 9, page no.e624-e632, September-2025, Available :http://www.jetir.org/papers/JETIR2509471.pdf

"Design and Analysis of Prestressed Cantilever Pier Caps: For Gravity Loads using CSi Bridge Software", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 9, page no. ppe624-e632, September-2025, Available at : http://www.jetir.org/papers/JETIR2509471.pdf