Strengthening of Beams by Plate Bonding
Publication: Journal of Materials in Civil Engineering
Volume 9, Issue 4
Abstract
At Luleå University of Technology, Sweden, research has been carried out in the area of plate bonding, i.e., the problems that can arise when concrete members need to be strengthened using epoxy-bonded plates. Both comprehensive experimental and theoretical work have been done. In this paper a derivation of the shear and peeling stresses in the adhesive layer of a beam with a strengthening plate bonded to its soffit and loaded with an arbitrary point load are presented. The results from both theory and finite-element analysis show that the stresses are very large at the end of the plate, but they quickly diminish as we move nearer the center of the beam. The magnitude of the stresses is influenced not only by the geometrical and material parameters of the beam, but also by the adhesive and the strengthening material.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
ANSYS user's manual revision 5.0A. (1994). Swanson Analysis Systems, Inc., Houston, Pa.
2.
Arduini, M., and Di Lep, A. (1996). “Composite behavior of partially plated beams in the linear elastic range.”Repair and strengthening of concrete members with adhesive bonded plates, ACI SP-165, R. N. Swamy, and R. Gaul, eds., American Concrete Institute (ACI), Detroit, Mich.
3.
Hamoush, S. A. (1988). “A fracturing model for concrete beams strengthened by externally bonded steel plates,” PhD thesis, North Carolina State Univ., N.C.
4.
Hamoush, S. A., and Ahmad, S. H.(1990a). “Debonding of steel plate-strengthened concrete beams.”J. Struct. Engrg., ASCE, 116(2), 356–371.
5.
Hamoush, S. A., and Ahmad, S. H. (1990b). “Static strength of steel plate-strengthened concrete beams.”Mat. and Struct./Matèriaux et Constructions, (23), 116–125.
6.
Roberts, T. M.(1984). “Finite difference analysis of composite beams with partial interaction.”Int. J. Comp. and Struct., 21(3), 469–473.
7.
Roberts, T. M.(1989a). “Approximate analysis of shear and normal stress concentrations in the adhesive layer of plated RC-beams.”The Struct. Engr., 67(12), 229–233.
8.
Roberts, T. M.(1989b). “Shear and normal stresses in adhesive joints.”J. Engrg. Mech., ASCE, 115(11), 2460–2476.
9.
Roberts, T. M. (1990). “Analysis of stress concentrations in the adhesive layer of plated concrete beams.”Int. Seminar, Struct. Repairs/Strengthening by the Plate Bonding Technique, Univ. of Sheffield, 11.
10.
Täljsten, B. (1994). “PLATE BONDING, strengthening of existing concrete structures with epoxy bonded plates of steel or fibre reinforced plastics,” PhD thesis, Luleå Univ. of Technol., Div. of Struct. Engrg., Luleå Sweden.
11.
Theillout, J. N. (1989). “Renforcements de structures par la technique des tôles collées.”Proc., IABSE Symp. of Durability of Struct., 767–772.
12.
Vilney, O.(1988). “The analysis of reinforced concrete beams strengthened by epoxy bonded steel plates.”The Int. J. Cement Compos. and Lightweight Concrete, 10(2), 73–78.
13.
Yuceoglu, U., and Updike, D. P. (1980). “Stress analysis of bonded plates and joints.”J. Engrg. Mech. Div., ASCE, 37–56.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 9 • Issue 4 • November 1997
Pages: 206 - 212
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Nov 1, 1997
Published in print: Nov 1997
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.