SIMULATION STUDY OF STRESS INITIAL CONDITIONS IN REINFORCED CONCRETE COLUMNS.

The influence of some non-mechanical parameters (relative environmental humidity, age of concrete at loading moment and concrete shrinkage) on the development of stresses in concrete and reinforcement of a reinforced concrete column is presented. The creep formula developed by Arutiunian (linear creep theory) is chosen. In addition, the principle of superposition of the creep and shrinkage strains is assumed. The variabilities of the initial stresses in the concrete and the reinforcement at the loading moment of this column and initial derivatives of those functions were based on the interpretation of the results of Monte Carlo simulations.