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Experimental investigation of a novel FRP-concrete composite floor slab

Xian Gai,Antony Darby,Tim Ibell,Mark Evernden-2011-12-01-The University of Bath Online Publications Store (The University of Bath)
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TL;DRAbstract

This paper presents the findings of an experimental investigation of a novel FRP-concrete composite floor system. The system consists of a moulded glass fibre reinforced polymer (GFRP) grating adhesively bonded to square pultruded GFRP box sections as structural formwork for a concrete slab. Holes cut into the top flange of the box sections at a variable spacing allow concrete ‘studs’ to form at the grating/box section interface. During casting, GFRP dowels are inserted into the holes to further connect the grating and box sections. Following component tests on the concrete-filled grating and shear connectors, six (300 x 150) mm and 3000 mm long slab specimens were designed and tested under five-point bending. From the resulting load-deflection curves, it was determined that all specimens behaved elastically and fully compositely until the initial peak was reached. No slip was observed between the concrete and GFRP box sections until the longitudinal shear failure occurred at the initi

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This paper presents the findings of an experimental investigation of a novel FRP-concrete composite floor system. The system consists of a moulded glass fibre reinforced polymer (GFRP) grating adhesively bonded to square pultruded GFRP box sections as structural formwork for a concrete slab. Holes cut into the top flange of the box sections at a variable spacing allow concrete ‘studs’ to form at the grating/box section interface. During casting, GFRP dowels are inserted into the holes to further connect the grating and box sections. Following component tests on the concrete-filled grating and shear connectors, six (300 x 150) mm and 3000 mm long slab specimens were designed and tested under five-point bending. From the resulting load-deflection curves, it was determined that all specimens behaved elastically and fully compositely until the initial peak was reached. No slip was observed between the concrete and GFRP box sections until the longitudinal shear failure occurred at the initi

Keywords

Fibre-reinforced plasticMaterials scienceStructural engineeringSlabFormworkFlangeComposite materialShear (geology)

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