Fundamental research on the statical analysis for RC buildings with holistic 3D calculation model

Nowadays, holistic 3D calculation models can be seen as a substantial part of structural engineering, especially in case of irregular, more complex and/or unconventional structures. The herewith presented research aims at an optimal use of such holistic 3D calculation models for the structural analysis of buildings. In detail, a representative high-rise building with flat slabs and a core for structural stability was modelled with a holistic 3D model taking into account the overall compatibility of the structural elements in the structure when loaded. This contribution concentrates on the comparison of the calculation results from the 3D models with and without construction stage analysis (CSA) with those from commonly used extracted 2D subsystems. Furthermore, the effect of stress distribution due to differential creep and shrinkage in the individual concrete columns and the concrete core will be discussed.