Torsional Strengthening of Spandrel Beams with Fiber-Reinforced Polymer Laminates
Publication: Journal of Composites for Construction
Volume 8, Issue 2
Abstract
Research has shown that fiber-reinforced polymer (FRP) composites can increase flexural, axial, and shear capacity of beams, columns, and walls. The present paper describes both experimental and analytical programs focused on the torsional strengthening of reinforced concrete spandrel beams using composite laminates. The variables considered in this study included fiber orientation, composite laminate, and effects of a laminate anchoring system. The study proved that the FRP laminates could increase the torsional capacity of concrete beams by more than 70%. The analytical procedure developed revealed a good comparison between experimental and analytical results.
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References
American Concrete Institute (ACI) Committee 440. (2001). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” Detroit.
American Concrete Institute (ACI) Committee 318. (2002). “Building code requirements for reinforced concrete.” and “Commentary.” ACI 318-02 and ACI 318R-02, respectively, Detroit.
Ghobarah, A., Ghorbel, M. N., and Chidiac, S. E.(2002). “Upgrading torsional resistance of reinforced concrete beams using fiber-reinforced polymer.” J. Compos. Constr., 6(4), 257–263.
Salom, P. R. (2001). “Spandrel beams retrofitted with carbon fiber polymer and subjected to torsion.” MSc thesis, Civil Engineering Dept., Univ. of North Carolina at Charlotte, Charlotte, N.C.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 8 • Issue 2 • April 2004
Pages: 157 - 162
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Sep 27, 2001
Accepted: Apr 9, 2003
Published online: Mar 15, 2004
Published in print: Apr 2004
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