The present article describes some of the possible ways of usage of the post-tensioned flat slabs and the rational design procedures to provide their structural reliability. Theoretical background of the punching resistance checking, in the case when the piles support the foundation pos-tensioned slabs, presented. For ground floor slabs, an iterative method given for determining design compression pre-stresses distribution in slab sections, taking into account the restrained effect created by the friction shear stresses in contact between slab and the base. In addition, the article presents some uncial practical implementations of the post-tensioned slabs as an artificial base in the presence of weak soils and as a large-size ground floor (slab-on-grade) without any joints.
Regan P.E. The punching resistance of prestressed concrete slabs / Proceedings, Institution of Civil Engineers – 1985, N79 – p. p 657-680.
Ramos S., Lucio A. Safety on Punching of Prestressed Flat Slabs / fib – Proceeding of 2nd International Congress – Naples, 2000 – p. p 17-27.
EN 1992: Eurocode 2 – Design of concrete structures –Part 1-1: General rules and rules for buildings.European Committee for standardization, Brussels.
fib ModelCode for Concrete Structures 2010, International Federation for Structural Concrete (fib), Lausanne, Switzerland, 2010
Тур В.В. К расчету на продавливание плоских пост-напряженных плит перекрытий / МГСУ, Сборник научных трудов – М., 2011 – с. 51-53.
Tur V. Nadolski V. Belarusian national annex to eurocode 3: basic variables formulation for the partial factors calibration, Modern Engineering 1/2016