An unified approach for the modeling of drying shrinkage and basic creep of concrete: analysis of intrinsic behaviour and structural effects

摘要

In this paper, a numerical modeling of the delayed behavior of concrete is presented. The model takes into account drying, shrinkage, creep and cracking phenomena. The coupling between all these phenomena is performed by using the theory of non-saturated porous media and the effective stress concept. The analysis of the long-term behavior is performed on a concrete specimen subjected to drying. Numerical simulations are compared to experimental data from the literature, in order to check the abilities of the model to describe the hydro mechanical behavior of concrete.