US 8,910,450 B2Granted

Method and device for strengthening and lightening floor and roof framing

OwnerJavier Antonio Simon-Dominguezinventor

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Abstract

Method and device for strengthening and lightening floor and roof framing, using several devices, prefabricated beams, molds, mesh, concrete laid on site and where necessary reinforcing rods. The method involves affixing the device, including a section, two bolts and a pin, wrapped transversally around the beam. Several devices can be affixed along each beam. The beams are placed on their walls or girders, parallel and separated depending on the molds, then the molds are seated in the protruding segments of the bolts of the device until the spans are covered, affixing reinforcing rods in the sides of the device where necessary. The mesh is laid by attaching it to the ends of the devices. The concrete is poured until the compression slab and the channels above the beams are filled. Once set, the bolts are removed to recover the molds from below.

Claims9

Dependent claims

A method for strengthening and lightening floor and roof framing using a plurality of molds, the method comprising:

transversally installing on each of a plurality of prefabricated beams a device comprising a one-piece tensile-strength resistant profile having two walls connected by a base, two screws and a pin, and at least one of holes or projections to receive reinforcing rods to be used in combination with the prefabricated beam, the profile having a lower part, in such a manner that an inner face of the base of the profile is in direct contact with a base of the prefabricated beam and the walls of the profile are in direct contact with edges and adjacent sides of the prefabricated beam;
placing the screws into threaded holes for housing the screws in both profile walls until reaching the prefabricated beam without perforating the prefabricated beam, leaving a screw segment remaining protruding outwardly from an exterior surface of one of the two profile walls, wherein the threaded holes are formed in the walls of the profile symmetrically at a height from the base of the profile that is lower than a height of the prefabricated beam;
fixing the pin from a first one of the profile walls to a second one of the profile walls using the holes for housing the pin in both profile walls, the pin remaining parallel to the profile base and at a distance from said base equal to the beam height;
positioning the plurality of prefabricated beams with the installed devices, such that the beams are spaced apart from each other at a distance equal to a cross-sectional size of the molds on parallel walls or girders;
positioning the molds on the screw protruding segments between adjacent ones of the profiles to form channels partially surrounding the prefabricated beams and the profiles;
pouring the concrete to cover a top of the mold and fill the channels such that the screws are not encased in the concrete;
and
after the concrete is set, removing the screws and the molds.

5 more elements

A device for strengthening and lightening floor and roof framing comprising:

a one-piece tensile-strength resistant profile, the profile having a lower part, two screws and a pin, and at least one of holes or projections to receive reinforcing rods to be used in combination with a prefabricated beam, that has a base, a mesh, and removable molds;
wherein:
the profile is symmetrically folded to envelope the prefabricated beam in said lower part and comprises a base and two sides having free ends, said two sides extending substantially parallel to each other toward the free ends;
the profile has threaded holes for housing the screws and holes for housing the pin;
an inner wall of the base of the profile is coincident with a shape of the base of the prefabricated beam;
the holes for housing the pin are each one in each of the profile sides and symmetrically facing each other, said holes for housing the pin are located at a height from the base of the profile that is equivalent to a height of the prefabricated beam;
the threaded holes for housing the screws are defined in each of the profile sides and symmetrically facing each other, said threaded holes being located at a height from the base of the profile that is lower than the height of the prefabricated beam;
the screws are affixed through the threaded holes and have a length sufficient to extend completely through the profile sides and further include a protruding segment of the screws remaining outward of the profile sides, the protruding segment having a length greater than a length of heads on the screws,
screw protruding segments removably affix removable molds to form channels that partially surround the prefabricated beams and the profiles when in use;
the profile free ends receive the mesh, when in use;
and
the pin essentially consists of a substantially straight rod, and has a minimum length sufficient so that the pin can be affixed into the holes for housing the pin defined in both profile sides.

9 more elements

Dependencies are inferred from the claim text.