Abstract: - In recent years, rapid urbanization and increasing transportation demand have led to the development of elevated metro systems across major cities. These systems rely heavily on prestressed concrete (PSC) box girder bridges due to their high strength, durability, and efficiency for long-span structures. However, these bridges are highly vulnerable to seismic forces due to their elevated configuration, slender geometry, and dynamic loading conditions. This review paper presents a comprehensive analysis of previous research studies related to seismic performance of PSC box girder bridges, elevated metro structures, and advanced analysis techniques. The study covers various aspects such as structural behavior, dynamic response, prestressing techniques, material performance, and design methodologies including force-based design (FBD) and displacement-based design (DDBD). The literature indicates that trapezoidal and multi-cell box girder configurations provide better structural performance compared to conventional rectangular sections due to improved load distribution and torsional rigidity. Advanced analysis methods such as nonlinear time history analysis and pushover analysis provide more realistic results compared to conventional response spectrum methods. The review also highlights the importance of considering factors such as soil-structure interaction, corrosion effects, residual prestress loss, and train-bridge interaction for accurate evaluation of structural behavior.
Meshram et al. (Mon,) studied this question.