FIELD: construction.
SUBSTANCE: invention relates to the installation of hairpins for hollow-core reinforced concrete slabs obtained by the method of casting inside a sliding formwork and equipped with a pre-tensioning reinforcement. Method of installing the hairpin into a fresh hollow-core reinforced concrete slab, the upper surface of which is opened to form an opening substantially in line with the wall between the voids, is constituted by placing an element forming the hairpin inside the obtained hole, while providing its support onto the hollow-core reinforced concrete slab pre-tensioning reinforcement. Herewith, end sections of the element forming the hairpin are placed under the hollow-core reinforced concrete slab pre-tensioning reinforcement by deliberate permanent deformation of this element after the said step of arranging the element forming the hairpin inside the obtained hole or by temporary deformation during arranging the element forming the hairpin inside the obtained hole.
EFFECT: increased efficiency of the hairpin installation.
8 cl, 10 dwg
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