Design of Prestressed Foundation Slab for Stands in Sports and Entertainment Hall

In order to explain this concept, the study part presents the basic issues concerning the dimensioning of the reinforced concrete slabs. The thesis was focused on the shrinkage in the structural elements mentioned above. The issue of the autogenous and drying shrinkage as well as the effects of its occurrence are discussed. The attention has also been paid to the loads on hardening concrete, which in turn generate stresses that are the source of the most important threats to reinforced concrete structures and the cause of their most frequent damage. The basic requirements for the limit crack width and the determination of the minimum reinforcement required for this have been presented.

Also, the concrete resistance against cracking by using expansion joints and structural connections was discussed. The thesis briefly describes the properties of non-adhesive tendons. It presents the differences between the conventional stressing with cables with adhesion and the non-adhesive tendons used in the design, in terms of the structural design, manufacturing, and operation of these prestressing forms in the concrete element. A method of securing the slabs against excessive cracking was also described by using axial tensioning of the slabs with non-adhesive tendons.