Flexural and Shear Strength of Composite Lintels in Glass-Fiber-Reinforced Gypsum Wall Constructions
Publication: Journal of Materials in Civil Engineering
Volume 18, Issue 3
Abstract
Composite lintels are formed above the door and window openings of glass-fiber-reinforced gypsum (GFRG) wall constructions. These lintels are constructed by filling reinforced concrete into the hollow cores of the GFRG walls. The GFRG panel itself is a composite material composed of gypsum plaster and the reinforcing glass fiber. When filled with reinforced concrete the structural action of the lintels is derived from further composite action between the GFRG panel and the infill concrete. Experimental beam testing was conducted to study the flexural and shear behavior of these composite lintels. Typical failure modes and corresponding ultimate strengths were obtained and analyzed. Based on the test results, theoretical design models and guidelines are proposed for both the flexural and shear strengths.
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Acknowledgment
The work described in this paper was supported by a grant from City University of Hong Kong (Project No. 7001809).
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 18 • Issue 3 • June 2006
Pages: 415 - 423
Copyright
© 2006 ASCE.
History
Received: Nov 22, 2004
Accepted: Mar 25, 2005
Published online: Jun 1, 2006
Published in print: Jun 2006
Notes
Note. Associate Editor: Houssam A. Toutanji
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