Baranya Megyei Allami Epitoipari Vallalat

Licencia Talalmanyokat Ertekesito Vallalat

Gyorgy Mayer

Laszlo Nemeskeri

Antal Banfai

Ervin Eszenyl

Janos Gyori

Mihaly Rikker

The object of the invention is a large post-tensioned floor bay consisting of a number of prefabricated reinforced-concrete floor elements for making floor structures, as well as a process for the production of floor elements and floor bays. The floor bays are composed of such floor elements, in which channels, optionally closed at the bottom, but open on top in any case, run along the whole length of the elements, the channels being broken by ribs provided with vertically oblong holes. The floor elements are assembled in a way such that the channels join each other. Cables spanning the elements along a straight line are laid in the channels, and the cables are given the required eccentricity at the points where necessary. The cables thus made eccentric are fixed by the channels being filled with concrete. No cable duct tubes are used and a single length of cable can be passed unbroken through several floor bays from wall to wall. Thus one-way or two-way load bearing floor bays can be formed.

Large post-tensioned floor bay consisting of a number of prefabricated

The invention is a process for making a large post-tensioned floor bay consisting of a number of prefabricated reinforced-concrete floor elements. The floor bays are composed of such floor elements, in which channels, optionally closed at the bottom, but open on top in any case, run along the whole length of the elements, the channels being broken by ribs provided with vertically oblong holes. The floor elements are assembled in a way such that the channels join each other. Cables spanning the elements along a straight line are laid in the channels, and the cables can be given the required eccentricity at the points where necessary. The cables thus made eccentric are fixed by the channels being filled with concrete. No cable duct tubes are used and a single length of cable can be passed unbroken through several floor bays from wall to wall. Thus one-way or two-way load bearing floor bays can be formed.

Process for making a large post-tensioned floor bay consisting of a

A process for producing reinforced concrete building units such as concrete floor panels having coffer-like inner holes with smooth upper and lower surfaces, comprises providing a layer of reinforced concrete on the lower edges of a building unit comprised by an upper panel and joining ribs intersecting each other. A reinforcing steel mat is secured to the lower edges of the ribs which is then immersed in a layer of concrete resting on a plate. The assembly is vibrated to consolidate the concrete around the mat and after hardening, the plate is removed, leaving a smooth undersurface on the resulting hollow construction. The panel can be prestressed to a downwardly convex shape, in which case the plate is given a corresponding upwardly concave curvature.

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Pecs, Hungary

Gyorgy Mayer