Open AccessAn analytical design approach for post-tensioned concrete slabs with unguided tendons
Author(s) -
Traian-Nicu Toader,
Zoltán Kiss,
Sergiu-Gheorghe Țere,
Attila Puskas
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1141/1/012013
Subject(s) - dimensioning , tendon , deflection (physics) , slab , structural engineering , deflexion , prestressed concrete , engineering , strips , materials science , composite material , surgery , physics , optics , finite element method , medicine , aerospace engineering
This article contains practical information on the design and dimensioning of prestressed concrete solid flat slabs using unbonded post-tensioned tendons, in accordance with the European standard EN 1992-1-1 and German standard DIN 1045-1. The calculation method and the mathematical equations necessary for the dimensioning of the non-adherent unguided tendons are given. The paper presents a case study where a slab floor is dimensioned for deflection using prestressing only in the column strips. The deflection of the slab is calculated using equivalent loads (unguided tendon), a mixt tendon profile with 4 th degree curve segments (unguided tendon) and parabolic tendon profile with 2 nd degree curve segments (guided tendon-classical solution).