TY - JOUR
T1 - Flexural behaviour of hardwood and softwood beams with mechanically connected GFRP plates
AU - Corradi, Marco
AU - Vo, Thuc P.
AU - Poologanathan, Keerthan
AU - Osofero, Adelaja Israel
N1 - Funding Information:
The authors thank Mr. Tomas Pupsys, Fahad Husain and Chun Chan. The authors are also grateful for support from the Structures Laboratory at Northumbria University in person of Leon Amess and Steve Colvin. The experimental activity was partially sponsored by research funds from UoA15 at Northumbria University .
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/12/15
Y1 - 2018/12/15
N2 - 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.
AB - 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.
KW - Bending tests
KW - Composite materials
KW - GFRP plates
KW - Numerical modelling
KW - Screwed connection
KW - Wood
UR - http://www.scopus.com/inward/record.url?scp=85052871170&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2018.08.056
DO - 10.1016/j.compstruct.2018.08.056
M3 - Review article
AN - SCOPUS:85052871170
VL - 206
SP - 610
EP - 620
JO - Composite Structures
JF - Composite Structures
SN - 0263-8223
ER -