پديدآورندگان :
Ahrabi A. Amirahrabi71@gmail.com M.Sc. student, Department Of Civil Engineering, Amirkabir University Of Technology(Tehran Polytechnic) , Tehran, 424 Hafez Ave, 159163-431, Iran; , Kabir M. Professor, Department Of Civil Engineering, Amirkabir University Of Technology(Tehran Polytechnic) , Tehran, 424 Hafez Ave, 159163-431, Iran , Rahai A. Professor, Department Of Civil Engineering, Amirkabir University Of Technology(Tehran Polytechnic) , Tehran, 424 Hafez Ave, 159163-431, Iran
كليدواژه :
Concrete Slab , GFRP Molded Grating , Experimental Investigation , Flexural Behaviour.
چكيده فارسي :
The objective of the current work is to investigate design options for a composite concrete slab without the use of ferrous materials but with relatively high stiffness. Such a target can be achieved by replacing the steel reinforcement of concrete slabs molded glass FRP (GFRP) structural sections (pultruded GFRP grating sections). The composite action between the FRP structural shapes and the concrete aims to reduce the previous observed high deformation when FRP rebar were used in the concrete. An experimental investigation was conducted to study the applicability and behavior of molded GFRP grating as a reinforcement of one-way concrete slabs and compare its behavior with that of concrete slab reinforced by steel rebar. Four medium-scale specimens were cast and tested under 3 point flexural loading. The first two specimens were used as control concrete slabs reinforced using same amount of reinforcing steel rebar. The third and fourth specimens were concrete slab reinforced using same amount of FRP grating. The test results indicated the feasibility of using pultruded fiberglass grating in resisting bending and shear stresses with reasonable ductility.
