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Erschienen in:
2011 | OriginalPaper | Buchkapitel
An Experimental Investigation into the Behaviour of Filament Wound Hybrid FRP-Concrete Beam
verfasst von : A. Chakrabortty, A. Khennane, E. V. Morozov
Erschienen in: Advances in FRP Composites in Civil Engineering
Verlag: Springer Berlin Heidelberg
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This study presents the results of an experimental investigation into the performance of hybrid beams wrapped with filament winding. A cost-effective pultruded profile was used to reduce the high initial cost of the beam. High strength concrete was cast on top of the pultruded profile to take the compressive forces and CFRP laminate at the bottom to take the tensile forces. The whole system was then wrapped with GFRP using filament winding to eliminate the debonding of the concrete from the pultruded profile. Two different lay-up types of wrapping ±45° and 90°/±45° were used. The experimental results show that the wrapping did not only eliminate the debonding of concrete from the pultruded profile but also increased the overall stiffness and the load carrying ability of the beam. As a result, the beams carried a significant amount of load before failure.