Tests on FRP-strengthened timber joints

Surprisingly little research has been conducted on the strengthening of timber with fibre reinforced polymer (FRP) composites as opposed to the much more widely researched strengthening of concrete and to a lesser extent metall ic structures. As with all FRP strengthening applications. the bond of the FRP to the substrate is of particular importance, A lack of understanding of the bond between FRP and timber is a major factor contributing to the reluctance of industry to utilise FRP for timber strengthening applications. This paper reports results of preliminary bond strength tests undertaken at the University of Technology Sydney (UTS) on FRP-strengthened timber joints. The aims of the tests were to observe the suitability of the test method. quality of the bond. bond strength and failure mode of the test specimens.