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Gewählte Publikation:

Hammerl, M; Kromoser, B.
(2022): Bending Behaviour of Prestressed T-Shaped Concrete Beams Reinforced with FRP-Experimental and Analytical Investigations
MATERIALS. 2022; 15(11), 3843 FullText FullText_BOKU

Materials such as high performance (HPC) or ultra-high performance concrete (UHPC), and fibre-reinforced polymer (FRP) reinforcement can be used to improve the resource efficiency in concrete construction by, for example, enabling the production of thin-walled structures. When building filigree concrete beams two essential factors must be considered: the low stiffness of the structure and the bond between the materials. By prestressing the structural stiffness is improved while an adequate concrete cover ensures sufficient bond strength. Based on this the bending behaviour of prestressed T-shaped beams reinforced with FRP, focussing on determining the influence of four parameters on the bearing capacity, bond behaviour and failure mode, is investigated in this paper. Comprehensive experimental investigations prove the potential of the approach and show that a reduction of the web thickness down to 40 mm, a lower concrete quality, and the use of glass FRP instead of carbon FRP allow a more resource-efficient structure while the applied prestressing leads to a higher utilisation of the high performance materials.
Autor*innen der BOKU Wien:
Hammerl Mathias
Kromoser Benjamin

Find related publications in this database (Keywords)
prestressed concrete
filigree structures
carbon concrete
pre-tensioned CFRP
resource efficiency
textile reinforcement
FRP anchorage

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