Structural Performance Evaluation and Failure Assessment of a Reinforced Concrete Bridge Using Numerical Modelling

Bridge failures represent a critical challenge in transportation infrastructure, leading to structural damage, traffic disruption, and significant safety risks. Analysis of failure data indicates that many bridge failures occur during the service stage, primarily due to design deficiencies, overloading, and inadequate maintenance. These issues highlight the disparity between theoretical design assumptions and actual field conditions, necessitating comprehensive performance evaluation. In this study, a reinforced concrete bridge is analysed using advanced numerical modelling techniques to evaluate its structural response under realistic loading conditions. Key parameters such as bending moment, shear force, deflection, and stress distribution are examined to identify critical zones susceptible to distress. The analytical results are correlated with observed failure patterns, including cracking, spalling, and material deterioration, to validate the structural behaviour. Based on this integrated analytical and observational approach, appropriate mitigation and strengthening strategies are proposed to enhance structural performance. The study emphasizes that bridge safety cannot rely solely on design compliance but requires continuous monitoring, maintenance, and performance-based evaluation. The findings contribute to improved bridge safety assessment by establishing a link between numerical analysis, failure mechanisms, and real-world operational risks.