Comparative Structural Behavior and Serviceability Assessment of Post-Tensioned Single-Cell Box Girder and Post-Tensioned Precast Composite I-Girder Railway Bridges Under AREMA Loading

Author(s)	Mr. Ronanki Sanjay Kumar, Mr. Mamidi Sai Babu
Country	India
Abstract	Prestressed concrete railway bridges are widely used due to their strength, durability, and serviceability under heavy rail loading. A comparison is presented between a post-tensioned single-cell box girder and a post-tensioned precast composite I-girder railway bridge. Both bridge alternatives were designed for a 40 m single-track span and analyzed using MIDAS Civil in accordance with AREMA loading requirements. The evaluation considers stresses, deflections, prestressing requirements, material consumption, and serviceability performance to assess the relative efficiency of each bridge system.
Field	Engineering
Published In	Volume 8, Issue 5, September-October 2026
Published On	2026-09-26

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