Advanced approach in numerical modeling of reinforced concrete frames loaded by seismic actions

Abstract

Objective of the research presented in this paper is the formulation of one enough sophisticated and reasonably convenient FEM based numerical model for reinforced concrete frames loaded by seismic actions. For modeling of concrete and steel nonlinear behavior uniaxial constitutive rules are applied. The proposal for inclusion the frame joint deterioration and interaction of shear and flexural forces (inclined cracks effects), in this model, is given as an contribution for existing wide used models. The results of few numerical tests (linear/nonlinear analysis of reinforced concrete frame loaded by three seismic actions) are given as an illustration of presented theoretical research. © 2007 Civil-Comp Press.