Flexural Behavior of Continuous GFRP Reinforced Concrete Beams
Publication: Journal of Composites for Construction
Volume 12, Issue 2
Abstract
The results of testing two simply and three continuously supported concrete beams reinforced with glass fiber-reinforced polymer (GFRP) bars are presented. The amount of GFRP reinforcement was the main parameter investigated. Over and under GFRP reinforcements were applied for the simply supported concrete beams. Three different GFRP reinforcement combinations of over and under reinforcement ratios were used for the top and bottom layers of the continuous concrete beams tested. A concrete continuous beam reinforced with steel bars was also tested for comparison purposes. The experimental results revealed that over-reinforcing the bottom layer of either the simply or continuously supported GFRP beams is a key factor in controlling the width and propagation of cracks, enhancing the load capacity, and reducing the deflection of such beams. Comparisons between experimental results and those obtained from simplified methods proposed by the ACI 440 Committee show that ACI 440.1R-06 equations can reasonably predict the load capacity and deflection of the simply and continuously supported GFRP reinforced concrete beams tested.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 12 • Issue 2 • April 2008
Pages: 115 - 124
Copyright
© 2008 ASCE.
History
Received: May 4, 2006
Accepted: Feb 27, 2007
Published online: Apr 1, 2008
Published in print: Apr 2008
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