Structural Response of a Three-Span Concrete Bridge with a ۴۰-cm Deck Slab under Concentrated Vertical Loading: A Case Study

This study presents a behavioral assessment of a three-span continuous reinforced concrete bridge with a ۴۰-cm thick deck slab, specifically evaluated under vertical point loading conditions. Given the complexity of load distribution in multi-span configurations, the research employs finite element analysis to quantify the structural response in terms of stress distribution and vertical displacement. The findings highlight the performance of the bridge under concentrated traffic loads, illustrating the influence of intermediate pier supports on the structural integrity and load-sharing capacity of the deck. Detailed analysis of the resulting stress contours and deflection profiles provides critical insights into the structural efficiency of the ۴۰-cm deck system. The results demonstrate that the chosen configuration maintains serviceability standards, effectively managing local stress concentrations while controlling global deflections. This study contributes to the understanding of continuous span bridge behavior, offering valuable data for the optimization of slab-on-girder or solid slab designs in similar infrastructure projects.

کلیدواژه ها:

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