Assessment and Repair of Prestressed Bridge Girders Subjected to Over-Height Truck Impacts [Research Summary]

ElGawady, Mohamed; Harper, Jennifer

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Assessment and Repair of Prestressed Bridge Girders Subjected to Over-Height Truck Impacts [Research Summary]

2025-09-01
By ElGawady, Mohamed ; Harper, Jennifer

File Language:

English

Details

Creators:

ElGawady, Mohamed ; Harper, Jennifer
Corporate Creators:

Missouri University of Science and Technology
Corporate Contributors:

Missouri. Department of Transportation. Construction and Materials Division ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Accidental Lateral Eccentricity Assessments Bridge Decks Carbon Fibers CFRP Collisions Equivalent Static Force Flexural Strength Girders Loads Maintenance Prestressed Concrete Repairing Residual Prestress Forces Residual Stress Resilience (Materials) Shear Tests Static Loads Strand Splicing Strategic Planning Traffic Crashes Trucks
Publication/ Report Number:

TR202011
Resource Type:

Brief
Geographical Coverage:

United States
Corporate Publisher:

Missouri. Department of Transportation. Construction and Materials Division
Abstract:

This comprehensive research project addresses the increasingly frequent and costly problem of over-height vehicle collisions with prestressed concrete (PC) bridge girders. The research combined full-scale experimental testing, nonlinear three-dimensional finite element modeling (FEM), and analytical methods to quantify the extent of damage, assess residual structural capacity, and evaluate repair strategies for prestressed girders subjected to lateral impact. Fourteen MoDOT Type II prestressed concrete girders (46 feet long) were subjected to 23 full-scale tests, including lateral impacts and static flexural loading. Damage scenarios ranged from minor to severe, simulating strand losses from 17% to 50%.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:882c1bdd8f5b61ec1981d8ee3a0e98f3ed9353d7e279c50560ffc8cb1cabdbf3a47b7a05d8a31e675e4ee52b157afd08507ff7c1df444b57818cd4d9f427f102
Download URL:

https://rosap.ntl.bts.gov/view/dot/86973/dot_86973_DS1.pdf
File Type:

[PDF - 534.60 KB ]

File Language:

English

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