Analysis of the flexural behavior of reinforced concrete beam with rectangular crosssection according to nonlinear deformation model of material

Abstract

This paper presents the calculation of the bending moment of the reinforced concrete beam with a rectangle section using the nonlinear deformation model. First, the fundamentals of building the formulas for determining the bending moment of reinforced concrete beams of rectangular cross-section with singly reinforced according to the nonlinear deformation model are presented. Second, the investigation of the behavior of reinforced concrete beams through the bending moment and deformation relationship. The results of the bending moment of reinforced concrete beams according to the nonlinear deformation model are compared with that calculated according to the ultimate internal force, and these different values are insignificantly small. In addition, this study determines the maximum reinforcement
percentage arranged in the beam to avoid brittle failure.

Keywords: Reinforced concrete beam; nonlinear deformation model; bending moment; maximum reinforcement percentage.