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http://dx.doi.org/10.5762/KAIS.2015.16.6.4245

An Experimental Study for Flexure/Shear Failure Behavior of Composite Beam with GFRP Plank Used As a Permanent Formwork and Cast-in-place High Strength Concrete  

Yoo, Seung-Woon (Department of Civil Engineering, Catholic Kwandong University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.6, 2015 , pp. 4245-4252 More about this Journal
Abstract
In this study, an experiment which utilized glass fiber reinforced polymer(GFRP) plank as the permanent formwork of cast-in-place high strength concrete structures was performed. The GFRP plank currently being produced has smooth surface so that it causes problems in behavior with concrete. Therefore, this research analyzed the flexure/shear failure behavior of composite beams, which used GFRP plank as its permanent formwork and has short shear span ratio, by setting the sand coated at GFRP bottom surface, the perforation and interval of the GFRP plank web, and the width of the top flange as the experimental variables. As a result of the experiments for effectiveness of sand attachment in case of not perforated web, approximately 47% higher ultimate load value was obtained when the sand was coated than not coated case and bending/shear failure mode was observed. For effectiveness of perforation and interval of gap, approximately 24% higher maximum load value was seen when interval of the perforation gap was short and the fine aggregate was not coated, and approximately 25% lower value was observed when the perforation gap was not dense on the coated specimen. For effectiveness of top flange breadth, the ultimate load value was approximately 17% higher in case of 40mm than 20mm width.
Keywords
Composite beam; GFRP; Perforated web; Permanent formwork; Sand coated;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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