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Large rupture strain (LRS) fibre-reinforced polymer (FRP) composites for seismic retrofit of reinforced concrete (RC) piers

J.G. Dai and Y.L. Bai,    The Hong Kong Polytechnic University, Hong Kong, China

Abstract:

Large rupture strain (LRS) fibre-reinforced polymer (FRP) composites are usually made of polyethylene naphthalate (PEN) or polyethylene terephthalate (PET) fibres. They have a relatively low elastic modulus but a much larger rupture strain (usually greater than 5%) as compared to conventional FRP composites (i.e. carbon FRP, glass FRP and aramid FRP), and therefore provide a cheaper but more effective solution for the seismic retrofit of reinforced concrete (RC) columns. This chapter first discusses the strength and ductility of ...

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