Banding for Structural Repair at Timber Connectors

by R. Richard Avent, (M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Misssissippi State Univ., Starkville, Miss.,
Paul H. Sanders, (M.ASCE), Assoc. Prof. and Asst. Dir.; Dept. of Civ. Engrg., Georgia Inst. of Tech., Atlanta, Ga.,
Leroy Z. Emkin, (M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Georgia Inst. of Tech., Atlanta, Ga.,

Serial Information: Journal of the Structural Division, 1980, Vol. 106, Issue 1, Pg. 87-98

Document Type: Journal Paper


An experimental program combined with on-site inspections have been conducted to investigate the structural integrity of using metal bands to repair longitudinal splits in timber structures. The experimental program of testing five full-scale trusses and repairing with bands showed that banding is a questionable technique for many applications. Several disadvantages of utilizing banding repairs for timber structures were found: (1) There are inherent difficulties in determining which damaged areas are amenable to banding repairs; (2)the possibility of ineffective repairs is great with the current state of knowledge; (3) there is a lack of standard procedures to insure the proper number, placement, and prestressing of bands; and (4) moisture variations may cause significant shrinkage and swelling of wood leading to loose and ineffective bands. It is therefore recommended that banding not be used as a repair technique for timber structures.

Subject Headings: Wood structures | Rehabilitation | Wood | Connections (structural) | Inspection | Metals (material) | Full-scale tests | Trusses

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