Performance-based material evaluation of reinforced glued laminatedtimber (glulam) beam
Published: 2005
Publication Name: Abstracts of the Proceedings. 3rd International Conference on AEWCs. 2005 July 10 14; Bar Harbor, ME.
Publication URL: https://www.researchgate.net/publication/216694159_Performance-based_material_evaluation_of_reinforced_glued_laminated_timber_Glulam_beams
Abstract:
A performance-based material evaluation methodology is reviewed as part of a broader project on the development of ?ber-reinforcedpolymer (FRP) composite reinforced glued-laminated (glulam) members. The glueline interface was examined under test conditions that includedthe presence of moisture and temperature ?uctuations, and the effect of wood preservatives. The objectives of this study were: 1) to determine if thecurrent test methods used to assess durability of wood-wood bonds for exterior use (ANSI/AITC and ASTM D 2559 protocols) can be adopted fortesting FRP composite reinforcement of wood; 2) to research possible modi?cations to the standard procedures when necessary to accommodatespeci?cs of the adhesive bonds in hybrid FRP-wood assemblies; and 3) to propose a uni?ed interpretation approach for FRP-wood interface testresults focusing on development of acceptance criteria. Four commercially available FRP composite systems exhibiting exterior durability potentialfor glulam reinforcement were selected to validate the material quali?cation protocol. Two wood species were considered in this study: southernyellow pine and Douglas-?r. The four FRP composite material systems represented a broad spectrum of ?ber reinforcement, matrix, adhesives, andfabrication processes. Experimental studies using the composite systems were conducted to validate the proposed methodology.