DESIGN OPTIMIZATION OF A COMPOSITE REBAR FOR THE REINFORCEMENT OF CONCRETE

Abstract

This paper presents the design optimization for a new composite rod for the reinforcement of concrete. This rod has a wavy shape with lobes that provide positive mechanical interlock with the concrete when the rod is embedded in concrete. ANSYS finite element program is used for the calculation of stresses. One particular set of concrete properties and one particular set of composite properties are used. Lobes of spherical shapes are examined. Rods under uniaxial tension loading are studied. The result gives the optimal ratio between the lobe radius and the rod radius.