Published: Građevinar 68 (2016) 10
Paper type: Original scientific paper
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Behaviour of precast concrete beams prestressed with CFRP strands
Abstract
Corrosion presents a serious problem in severe marine environments, especially for bridges. This paper explores the use of carbon fibre reinforced polymer (CFRP) strands for prestressing precast concrete girders. The research includes a practical prestressing process using the prestressing jacks normally applied in the precast industry. Bending tests are made on prestressed concrete T-beams (scaled models of typical T-section). The design and casting processes, and the test set-up used to load the beams up to failure, are discussed, and failure mechanisms are reviewed. Test results are compared with the ACI 318 guidelines.
KeywordsCFRP strand, concrete girder, prestressing, bending test, T-beam