MODELING OF THE BEHAVIOR OF REINFORCED-CO NCRETE RECTANGULAR CROSS-SECTIONS IN STATIC BENDING

The authors propose an original method to determine the curvature unde r bending of a reinforced concrete rectangular cross-section subjected to static flexural loading. They propose using a behaviour law drawn- from the theory of linear elasticity coupled with an isotropic damage theory to model the behaviour of concrete under monoaxial compression. Their equation offers very close accuracy and also greatly facilitate s the resolution of this problem. This results in quicker computer pro cessing, saving considerable time in the non-linear physical calculati on of the behaviour of reinforced concrete hypostatic beams, especiall y for checking the ultimate limit state or for estimating their reliab ility by probabilistic methods.