Research Article
Apr 1976
Epoxy-Repaired Bolted Timber Connections
Authors: R. Richard Avent, M.ASCE, Leroy Z. Emkin, AM.ASCE, Robert H. Howard, and Charles L. Chapman Jr., M.ASCEAuthor Affiliations
Publication: Journal of the Structural Division
Volume 102, Issue 4
Abstract
A major maintenance cost associated with timber construction is the repair of structural members in which checking, cracking, and splitting have occurred, in particular, near bolted joint connections. The use of pressure injected epoxy to repair damaged timber connections has potential as a viable alternative to current repair procedures. To investigate the structural behavior of epoxy-repaired timber connections, a series of experimental studies were conducted to determine: (1) Epoxy-to-wood bond characteristics; and (2) behavior of epoxy-repaired bolted timber connections. Bond tests in both tension and shear showed that the epoxy-to-wood bond is at least as high as the allowable stress in the timber. Tension and bending tests of simple bolted joint connections were even more significant. Using a procedure of loading a defect-free joint to failure, repairing the joint by the epoxy injection method, and reloading the joint to failure, it was found that a 30%-60% increase in strength is obtained, and the stiffness of the joint is increased.
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Published In
Journal of the Structural Division
Volume 102 • Issue 4 • April 1976
Pages: 821 - 838
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Apr 1976
Published online: Feb 1, 2021
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Authors
Affiliations
R. Richard Avent, M.ASCE
Assoc. Prof. of Civ. Engrg. Mississippi State Univ., Starkville, Miss
Leroy Z. Emkin, AM.ASCE
Assoc. Prof. of Civ. Engrg. Georgia Inst. of Tech., Atlanta, Ga
Robert H. Howard
Design Engr., Production Engrg. Div., Exxon Production Engrg. Co., Houston Tex.; formerly, Grad. Asst. Dept. of Civ. Engrg., Georgia Inst. of Tech., Atlanta, Ga
Charles L. Chapman Jr., M.ASCE
Supervisory Engr. Robins Air Force Base, Ga
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.