Discussion on Detection and Evaluation of Simply Supported Prestressed Concrete Small Box Girder Bridge After a Fire

Qing  Yang; Jiang  Feng

doi:10.26689/jard.v8i2.6335

Qing Yang China Merchants Chongqing Highway Engineering Testing Center Co., Ltd., Chongqing 400060, China
Jiang Feng China Merchants Chongqing Highway Engineering Testing Center Co., Ltd., Chongqing 400060, China

DOI: https://doi.org/10.26689/jard.v8i2.6335

Keywords: Prestressed concrete box girder, Simply supported small box girder, Fire damage, Concrete testing, Reinforcement testing

Abstract

The article takes a simply supported prestressed concrete small box girder bridge project as an example for inspection and evaluation after a fire incident. This includes appearance detection, concrete color hardness detection, concrete strength detection, concrete surface damage layer detection, reinforcement protective layer detection, and concrete carbonation detection. It is hoped that this analysis can be used as a reference for the detection and evaluation of future bridge projects with fire incidents to smoothen its subsequent repair and maintenance.

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