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Erschienen in:
2021 | OriginalPaper | Buchkapitel
Behaviour of Concrete Filled FRP Tubular Columns Under Axial Compression
verfasst von : S. Ramanagopal
Erschienen in: Sustainable Practices and Innovations in Civil Engineering
Verlag: Springer Singapore
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Abstract
Fiber Reinforced Polymer (FRP) encased concrete columns are the alternative solution for the corrossive environment. The concrete filled FRP tubes are used due to high tensile strength to weight ratio, corrosion resistance and chemical resistance. The behaviour of concrete filled FRP tubular columns under axial compression was studied in this paper. The parameters varied in the study are Concrete strength (M30, M40 and M50), Number of casing (single and double) and D/t ratio (25 and 33.33). The load-strain and load-deflection behaviour were plotted for the specimens and compared. The performance of FRP tubes with higher grade of concrete (M50) was double when compared with M30. The load carrying capacity of the concrete filled FRP tubes increased one third for change in D/t ratio form 25 to 33.33. It was observed that the failure of the columns are due to rupture of the FRP tubes at single place without any significant damage in the rest of the section.