Flexural behaviour of hardwood and softwood beams with mechanically connected GFRP plates

Corradi, Marco, Vo, Thuc, Poologanathan, Keerthan and Osofero, Adelaja Israel (2018) Flexural behaviour of hardwood and softwood beams with mechanically connected GFRP plates. Composite Structures, 206. pp. 610-620. ISSN 0263-8223

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Official URL: https://doi.org/10.1016/j.compstruct.2018.08.056


The use of Glass Fiber Reinforced Polymers (GFRP) can delay or prevent tension failure in timber beams under loading and highly reduce tensile stresses. In this paper, the problem of reversibility, compatibility, and poor performance at high temperatures, of “traditional” organic adhesives was mitigated through the use of metal connectors. The flexural behaviour of hardwood and softwood beams reinforced by mechanically connected GFRP plates, has been studied through series of experimental investigations and numerical modelling. The experimental program included strengthening and testing of a total of 91 beams (50 hardwood and 41 softwood). Each beam was loaded above its service load until complete failure. Different strengthening layouts and quantity of metal connectors were used. The increment in capacity and stiffness is the main focus of this paper and effects of strengthening on deflection, failure load and failure mode, strain, and beam ductility were discussed in details. The combination of different GFRP configurations with appropriate amount of metal connectors, led to the doubling of the maximum load carrying capacity of the beams.

Item Type: Article
Uncontrolled Keywords: GFRP plates, Wood, Screwed connection, Composite materials, Bending tests, Numerical modelling
Subjects: H200 Civil Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 26 Nov 2018 12:32
Last Modified: 27 Nov 2020 14:35
URI: http://nrl.northumbria.ac.uk/id/eprint/36914

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