Skip to Main Content
Effect of fiberglass reinforcement on the behavior of bolted wood connectionsAuthor(s): Lawrence A. Soltis; Robert J. Ross; Daniel E. Windorski
Source: Journal of contemporary wood engineering. Vol. 8, no. 3 (fall 1997): Pages 19-24
Publication Series: Miscellaneous Publication
PDF: View PDF (265 KB)
DescriptionBolted connections often fail by a shear plug or by splitting beneath the bolt caused by tension perpendicular-to-grain stress as the bolt wedges its way through the wood. Preventing this type of failure enhances both the capacity and reliability of bolted connections. This research investigated the use of fiberglass reinforcement to enhance the load-carrying capacity of bolted wood connections. Matched specimens were reinforced with one, two, or three layers of bidirectional fiberglass cloth and configured to ensure a Mode I failure as defined by the yield theory in the National Design Specification. A total of 80 single-bolt, double-shear connections were tested, with 40 loaded parallel-to-grain and 40 perpendicular-to-grain. For parallel-to-grain loading, the reinforcement changed the mode of failure from an abrupt, catastrophic type associated with tension perpendicular-to-grain stress to a ductile type associated with bearing stress. These results are applicable to Mode I failures where surface reinforcement is most effective; smaller increases in strength are expected for thicker main members that experience Modes III and IV failures.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationSoltis, Lawrence A.; Ross, Robert J.; Windorski, Daniel E. 1997. Effect of fiberglass reinforcement on the behavior of bolted wood connections. Journal of contemporary wood engineering. Vol. 8, no. 3 (fall 1997): Pages 19-24
KeywordsFiberglass reinforcement, bolted wood connections, failure
- Feasibility of fiberglass-reinforced bolted wood connections
- Timber rivet connections in US domestic species
- The influence of juvenile wood content on shear parallel, compression,and tension perpendicular to grain strength and mode I fracture toughness of loblolly pine at various ring orientation
XML: View XML