Structural Response of a Three-Span Concrete Bridge with a ۳۰-cm Deck Slab under Combined Vertical Loading: A Case Study

This study presents a structural behavioral assessment of a three-span continuous reinforced concrete bridge, specifically evaluating the response of a ۳۰-cm thick deck slab under combined vertical loadings (uniformly distributed and concentrated loads). Given the importance of serviceability and stress distribution in multi-span bridge systems, a detailed finite element model was developed to capture the structural response. The analysis focuses on characterizing the von Mises stress distribution and vertical displacement profiles across the continuous deck under these integrated loading scenarios. Numerical results indicate that the structural continuity and the interaction between load types significantly influence the load path and deformation patterns, with peak stresses occurring at the intermediate supports and maximum deflections observed in the mid-span regions. These findings provide critical insights into the performance of ۳۰-cm thick bridge decks under combined loading conditions, offering a basis for optimizing design parameters to balance structural efficiency and compliance with serviceability limit states.

کلیدواژه ها:

two-span bridge ، concrete bridge ، deck continuity ، finite element analysis