Recommended Citation
Tseng, T.-C., & Varma, A. H. (2022). Synthesis study: Repair and durability of fire-damaged prestressed concrete bridge girders (Joint Transportation Research Program Publication No. FHWA/IN/JTRP-2022/15). West Lafayette, IN: Purdue University. https://doi.org/10.5703/1288284317378
DOI
10.5703/1288284317378
Abstract
Recent research results from INDOT research project SPR-4221 indicate that the damage to prestressed concrete bridge girders from an intense hydrocarbon fire is limited to concrete material degradation up to a depth of 1 inch from the surface. Additionally, concrete cracking and spalling occur in the fire-damaged region, but the structural strength (flexure and shear) of fire-exposed prestressed concrete bridge girders is not compromised. The findings open the possibility for repairing damaged bridge girders and answers questions regarding the durability of damaged-unrepaired and damaged-repaired girders.
Report Number
FHWA/IN/JTRP-2022/15
Keywords
fire, prestressed, concrete, girder, bridge, repair, durability
SPR Number
4532
Performing Organization
Joint Transportation Research Program
Sponsoring Organization
Indiana Department of Transportation
Publisher Place
West Lafayette, IN
Date of this Version
2022