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http://dx.doi.org/10.11112/jksmi.2014.18.2.021

Experimental Study for GFRP Reinforced Concrete Beams without Stirrups  

Ko, Seong-Hyun (제주국제대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.18, no.2, 2014 , pp. 21-29 More about this Journal
Abstract
This paper evaluates the shear strength, behavior and failure mode of reinforced concrete beams with deformed GFRP reinforcing bar. Four concrete beam specimens were constructed and tested. It was carried out to observe failure behavior and load-deflection of simply supported concrete beams subjected to four-point monotonic loading. In order to eliminate of the uncertainty by the shear reinforcements, any stirrups were not used. Variables of the specimens were shear span-depth ratio, effective reinforcement ratio. The dimensions of specimen is 3,300 or $1,950mm{\times}200mm{\times}240mm$. Clear span and shear span were 2,900mm, 1,000mm respectively. Shear span-depth ratios were 6.5 and 2.5. Effective ratios of Longitudinal GFRP reinforcing bar were $1.126{\rho}_{fb}$, $2.250{\rho}_{fb}$, $3.375{\rho}_{fb}$ and $0.634{\rho}_{fb}$. All beam specimens were broken by diagonal-tension shear and the ACI 440.1R, CSA S806 and ISIS, which was used to design test beams, showed considerable deviation between prediction and test results of shear strengths.
Keywords
GFRP bar; Without stirrup; Failure mode; Shear span-depth ratio; Shear strength; Effective reinforcement ratio;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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