COMPUTATIONAL MODEL FOR REINFORCING BAR EMBEDDED IN CONCRETE UNDER COMBINED AXIAL PULLOUT AND TRANSVERSE DISPLACEMENT

Abstract

An enhanced computational model for the prediction of reinforcing bar behavior under the generic condition of axial pullout and transverse displacement is presented. Based on the compatibility relationship between the transverse displacement and the curvature induced in the embedded bar, the localized phenomenon of the bar close to the interface is formulated, and its formulation makes it possible to express the reduced pullout stiffness of embedded bars encountered under combined axial pullout and transverse dowel action.