ABSTRACT
Structural members of the Olive View Hospital main building as well as the stairway tower C were constructed out of cast-in-place reinforced concrete. Modelling of this material is extremely difficult, mainly due to highly non-linear behaviour of concrete and consideration of steel reinforcement. In this study, reinforced concrete has been modelled as layered material with rebar elements embedded into concrete. Concrete itself is a material with dramatically lower strength in tension than in compression, which shows highly non-linear stress-strain behaviour. It also experiences stiffness and strength degradation due to damage under large load reversals during cyclic loading. The assumed in the numerical model relation between stresses and strains under uniaxial cyclic loading of concrete is shown in Fig. 1.
