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http://dx.doi.org/10.11112/jksmi.2015.19.4.057

Behaviour of Lightweight Concrete Slab Reinforced with GFRP Bars under Concentrated Load  

Son, Byung-Lak ((주) 선익)
Kim, Chung-Ho (경성대학교 건설환경도시공학부 토목공학전공)
Jang, Heui-Suk (부경대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.19, no.4, 2015 , pp. 57-66 More about this Journal
Abstract
This paper is a preliminary study to apply the lightweight concrete slabs reinforced with GFRP (glass fiber reinforced polymer) bars to the bridge deck slabs or some other concrete structures. So, some different behaviors between the conventional steel reinforced concrete slab and the lightweight concrete slab reinforced with GFRP bars were investigated. For this purpose, a number of slabs were constructed and then the three point bending test and numerical analysis for these slabs were performed. The flexural test results showed that the lightweight concrete slabs reinforced with GFRP bars were failed by the shear failure due to the over-reinforced design. The weight and failure load of the GFRP bar reinforced lightweight concrete slabs were 72% and 58% of the steel reinforced concrete slab with the same dimensions, respectively. Results of the numerical analysis for these slabs using a commercial program, midas FEA, showed that the load-deflection curve could be simulated well until the shear failure of the slabs, but the applied loads and the deflections continuously increased even beyond the shear failure loads.
Keywords
GFRP bar; Lightweight concrete; Slab specimen;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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