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Polymers 2014, 6(3), 667-685; doi:10.3390/polym6030667

Flexural Behavior of RC Members Using Externally Bonded Aluminum-Glass Fiber Composite Beams

1
School of Civil Engineering, Chungbuk National University, Chungbuk 361-763, Korea
2
School of Architecture, Chosun University, Philmundaero, Dong-Gu, Gwangju 501-759, Korea
3
Department of Civil Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
*
Author to whom correspondence should be addressed.
Received: 25 December 2013 / Revised: 26 February 2014 / Accepted: 3 March 2014 / Published: 10 March 2014
(This article belongs to the Special Issue Fiber-Reinforced Polymer Composites in Structural Engineering)
View Full-Text   |   Download PDF [768 KB, 11 March 2014; original version 10 March 2014]   |  

Abstract

This study concerns improvement of flexural stiffness/strength of concrete members reinforced with externally bonded, aluminum-glass fiber composite (AGC) beams. An experimental program, consisting of seven reinforced concrete slabs and seven reinforced concrete beams strengthened in flexure with AGC beams, was initiated under four-point bending in order to evaluate three parameters: the cross-sectional shape of the AGC beam, the glass fiber fabric array, and the installation of fasteners. The load-deflection response, strain distribution along the longitudinal axis of the beam, and associated failure modes of the tested specimens were recorded. It was observed that the AGC beam led to an increase of the initial cracking load, yielding load of the tension steels and peak load. On the other hand, the ductility of some specimens strengthened was reduced by more than 50%. The A-type AGC beam was more efficient in slab specimens than in beam specimens and the B-type was more suitable for beam specimens than for slabs. View Full-Text
Keywords: aluminum-glass fiber composite (AGC) beam; flexural stiffness; flexural strength; failure mode; ductility aluminum-glass fiber composite (AGC) beam; flexural stiffness; flexural strength; failure mode; ductility
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Hong, K.-N.; Cho, C.-G.; Lee, S.-H.; Park, Y. Flexural Behavior of RC Members Using Externally Bonded Aluminum-Glass Fiber Composite Beams. Polymers 2014, 6, 667-685.

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