Case study of application of FRP composites in strengthening concrete headstock of a bridge structure

Nezamian, A and Setunge, S 2007, 'Case study of application of FRP composites in strengthening concrete headstock of a bridge structure', Journal Of Composites For Construction, vol. 11, pp. 531-544.


Document type: Journal Article
Collection: Journal Articles

Title Case study of application of FRP composites in strengthening concrete headstock of a bridge structure
Author(s) Nezamian, A
Setunge, S
Year 2007
Journal name Journal Of Composites For Construction
Volume number 11
Start page 531
End page 544
Total pages 13
Publisher American Society of Civil Engineers
Abstract Worldwide interest is being generated in the use of fiber-reinforced polymer composites (FRP) in the rehabilitation of aged or damaged reinforced concrete structures. As a replacement for the traditional steel plates or external posttensioning in strengthening applications, various types of FRP plates, with their high strength-to-weight ratio and good resistance to corrosion, represent a class of ideal material in externally retrofitting. This paper describes a solution proposed to strengthen the damaged reinforced concrete headstock of the Tenthill Creeks Bridge, Queensland, Australia, using FRP composites. A decision was made to consider strengthening the headstock using bonded carbon FRP laminates to increase the load carrying capacity of the headstock in shear and bending. The relevant guidelines and design recommendations were compared and adopted in accordance with AS 3600 and Austroads bridge design code to estimate the shear and flexural capacity of a rectangular cracked FRP reinforced concrete section.
Subject Structural Engineering
Keyword(s) polymer composites
retrofit
DOI - identifier 10.1061/(ASCE)1090-0268(2007)11:5(531
Copyright notice ©2007 ASCE
ISSN 1090-0268
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