ANALYTICAL LOAD BEARING CAPACITY’S DETERMINATION OF REINFORCED CONCRETE BEAMS BY DIFFERENT "STRESS-STRAIN" DEPENDENCIES

Abstract

The article considers the comparison of analytical calculation results of the rectangular section reinforced concrete beam’s bearing capacity with double reinforcement using three different simplified "stress-strain" dependencies in accordance with the requirements of State Standard DSTU-N B EN 1992-1-1: 2010. «Design of Concrete Structures. Part 1-1. General rules and rules for buildings". In determining of beam’s carrying capacity used the calculating algorithm, proposed by Ph.D. Popov V.A. It is shown that the beam’s bearing capacity defined by the rectangular "stress-strain" simplified diagram almost by 6.5% more than bearing capacity determined by the bilinear simplified diagram, and almost equal to the bearing capacity of parabolic-rectangular diagram.