Abstract: This collection of research endeavors encompasses a broad spectrum of studies focused on bridge analysis and design, providing distinctive insights into diverse bridge structures and their behaviors across varying conditions. The papers delve into a wide range of topics, from evaluations of T-beam girder bridges to assessments of aging T-beam bridges' capacities, investigations into dynamic responses of high-speed vehicles on bridges, and finite element analyses of deteriorated T-girder bridges subjected to cyclic loading. Additionally, the paper on finite element failure analysis underscores the vital significance of precisely modeling support conditions within the CSi Bridge software. Collectively, these studies make substantial contributions to the realm of bridge engineering knowledge, offering valuable insights for designers, engineers, and researchers committed to enhancing the safety and integrity of diverse bridge types across a multitude of operational scenarios.

Keywords: Bridge design, Bridge analysis, , CSi Bridge, T-girder Bridges.

| DOI: 10.17148/IARJSET.2023.10829