Rehabilitation of timber beams with reinforced epoxy plates: Fid-Bau Portal

Rehabilitation of timber beams with reinforced epoxy plates

Duarte, A. / Negrão, J. / Cruz, H.

This paper discusses practical and theoretical issues concerning a rehabilitation system for timber beams, consisting of the replacement of the damaged or decayed parts by new pieces of timber, connected to the remaining original material through a cast-in-situ reinforced epoxy plate. Mild steel ribbed bars, stainless steel threaded rods and pultruded GFRP bars were used as reinforcement and the performance for each alternative was found through bending tests of a number of spliced beams. A proposal for an analytical model for the design of such system was developed, which shows good agreement with the experimental results. ; The tests referred to in this paper were undertaken in the Laboratory of Structures and Materials, in the Department of Civil Engineering of University of Coimbra, with the valuable support of its technicians. SIKA Portugal supported this study by supplying part of the Sykadur-42 epoxy resin used in the rehabilitation plates, while ROTAFIX provided the pultruded GFRP bars at a low-cost. ; 8 ; 2 ; 6p ; DE/NEM ; 2004 ; 14 a 17 de Junho

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