Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Sociedad Española de Integridad Estructural
Grupo Español de Fractura

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DEVELOPMENT OF STRENGTHENING SOLUTIONS FOR DOWEL-TYPE WOOD CONNECTIONS

C.L. Santos  A.M.P. de Jesus  J.J.L. Morais  E.R.M.A. Queirós  A.M.V. Lima    

Anales de la Mecánica de la Fractura, nº 27 . 2010 . Pág. -
Ver (.pdf): 102

Resumen: This paper presents a study concerning the development of reinforcing techniques for dowel-type wood connections. One of the proposed techniques is based on the application of CFRP laminates (glued with epoxy resin) in the areas surrounding the holes of the wood members. The other technique is based on the application of steel inserts, glued to the holes of the timber members. In this latter technique two distinct commercial epoxy adhesives are investigated. Both techniques are demonstrated for the maritime pine wood. The experimental program included embedding tests, carried out according to the EN 383/1993 standard, with and without reinforcement, and covering parallel and perpendicular-to-grain quasi-static loading. The proposed experimental program allowed the evaluation of the embedding strength and foundation modulus. The analysis of this information showed the improved performance of the strengthening solutions. Also, it is important to emphasize that the reinforcement based on CFRP laminates eliminated fragile failure modes in the wood members.

LocalizaciónPorto

Engineering Department, School of Sciences and Technology University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5001-801 Vila Real
Engineering Department, School of Sciences and Technology University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5001-801 Vila Real, Portugal
Engineering Department, School of Sciences and Technology University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5001-801 Vila Real
Engineering Department, School of Sciences and Technology University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5001-801 Vila Real, Portugal
Engineering Department, School of Sciences and Technology University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5001-801 Vila Real, Portugal


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