A method for flexural reinforcement of old wood beams with CFRP materials

Borri, Antonio, Corradi, Marco and Grazini, Andrea (2005) A method for flexural reinforcement of old wood beams with CFRP materials. Composites Part B: Engineering, 36 (2). pp. 143-153. ISSN 13598368

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Official URL: http://dx.doi.org/10.1016/j.compositesb.2004.04.01...

Abstract

This paper presents a study on the reinforcement of existing wood elements under bending loads through the use of FRP materials. An analytical investigation was first conducted on the behavior of a generic FRP-reinforced wood section. This study, in turn, led to a numerical procedure based on non-linear wood properties, suitable for application in the design of FRP reinforcement of old, pre-existing wood beams under varying configurations of intervention layouts and materials. An experimental programme based on a four-point bending test configuration is proposed to characterize the stiffness, ductility and strength response of FRP-wood beams. Mechanical tests on the reinforced wood showed that external bonding of FRP materials may produce increases in flexural stiffness and capacity. The FRP composite material was made of High Tensile Carbon monodirectional reinforcing fabrics embedded in an epoxy resin matrix. This reinforcing method can be applied without necessitating the removal of the overhanging part of the pre-existing wood structure, thus maintaining the original historical structure. In addition, a beam non-linear model was proposed to predict ultimate load. At the end of this paper results of the experimental programme are presented and used for comparison with the numerical procedure.

Item Type: Article
Uncontrolled Keywords: Carbon fibre, analytical modelling, mechanical testing, strength
Subjects: H200 Civil Engineering
K200 Building
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 04 Aug 2014 09:25
Last Modified: 10 Aug 2015 11:35
URI: http://nrl.northumbria.ac.uk/id/eprint/17312

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