3.4 Repair of steel bridges with CFRP plates
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Published:2002
M Tavakkolizadeh, H Saadatmanesh, 2002. "3.4 Repair of steel bridges with CFRP plates", Advanced polymer composites for structural applications in construction: Proceedings of the first international conference, held at Southampton University, UK, on 15–17 April 2002, R A Shenoi, S S J Moy, L C Hollaway
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The conventional methods for repair or retrofit of the substandard structures are costly and time consuming. In recent years, several new techniques have examined the possibility of utilizing the superior mechanical and physical properties of Fiber Reinforced Polymer (FRP) composites. This paper presents the results of a study on the behavior of damaged steel-concrete composite girders repaired with Carbon Fiber Reinforced Polymers (CFRP) sheets under static loading. A total of three large-scale composite girders were prepared and tested. The thickness of the CFRP sheet was constant and 1, 3 and 5 layers of these sheets were used to repair the specimen with 25, 50 and 100% loss of the cross sectional area of their tension flange, respectively. The test results showed that epoxy bonded CFRP sheet could restore the ultimate load carrying capacity and stiffness of damaged steel-concrete composite girders.
INTRODUCTION
PREVIOUS WORK
EXPERIMENTAL STUDY
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