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Information Sciences Letters

Information Sciences Letters

Abstract

Concrete structures are usually subjected to short-term dynamic loads besides long-term static loads. Tensile strength and energy dissipation characteristics are reduced as a result of these loads as long as the concrete is weak in resisting impact loads. This paper studies the behavior of one-way concrete slabs reinforced with glass fiber reinforced polymer (GFRP) under an impact load. A comparison one-way concrete slabs reinforced with GFRP and normal steel has been done. Six slabs with dimensions of (4000*1000*180) mm are cast. Three specimens for each type of slab have been constructed and tested under impact load. A simple device has been made mainly to subject an impact load by applying a load of a weight 7 Kg that falls in the center of the slab from two different heights,1000 mm and 2000 mm. The concrete strain at different locations is measured during a specific time. Results have been taken as an average of three specimens for each type of slab. The results showed that the slabs reinforced with GFRP bars has a better behavior than the ones reinforced with normal steel. The strain of the slabs with GFRP is 25% less than the slab with steel bars, also the time interval was 37.5% less. The value of strains is greater in the short direction than the other directions.

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