Análise da Confiabilidade de Estructuras de Concreto Armado Incluindo Campos Estocásticos

Abstract

In this paper special emphasis is given to uneertainties in the evaluation of the structural. behaviour, looking for a better repmeatation of the system. cbaracteristics and quantification of the significance of those uncertainties in the structural design.
The reliability analysis of reinfim:ed concrete stnK:tures is considerecl taking into account the spatial variability of the material properties. A finite element algorithm is used to analyze the reinforced concrete structure. It is proposed and developed a multidimensional non-Gaussian stochastic field generation model (independent of the finite element mesh). An example is presented to study the reliability of a simple
reinforced concrete beam with respect to a limit state function which establishes that the displacement of the mid span cross section does not exceed a prescrived value, considering the Young modulus as a stochastic field.