EP2019174A2

EP2019174A2 - Modular floor

Info

Publication number: EP2019174A2
Application number: EP08161156A
Authority: EP
Inventors: Fausto Elimiani
Original assignee: De Agency SRL
Current assignee: De Agency SRL
Priority date: 2007-07-27
Filing date: 2008-07-25
Publication date: 2009-01-28
Also published as: EP2019174A3; ITBO20070528A1

Abstract

A modular floor comprises a set of supporting section-bars (2) fit to be positioned mutually parallel and with the ends supported by beams of a structure to be equipped with the floor. Each supporting section-bar (2) has a transversal section roughly "U"-form shaped.

Description

The present invention relates to the building industry field and it refers to a modular floor.
There are known floors carried out by cement concrete jets on structures made by girders or rafters and hollow flat tiles.
A drawback of said floors consists in that they need support bearing structures till the consolidation of the concrete.
Other drawback consists in that the upper surface of said floors becomes very irregular and it needs the placing of thick layer of concrete.
An object of the present invention is to propose a self-supporting modular floor, or that it does not need supporting structure and that it is practicable in very short time.
Other object is to propose a floor with the very regular and virtually perfectly horizontal upper surface.
Further object is to propose a floor whose lower surface comprises a finishing slab.
Further object is to propose a floor which is thermally and/or acoustic isolated.
The characteristics of the invention are underlined in the following with particular reference to the attached drawings, in which:

figure 1 shows an axonometric, partial and sectioned view of the modular floor object of the present invention;
figures 2 - 5 show respectively top, side, front and axonometric partial views of a supporting section-bar of figure 1;
figures 6 - 8 show respectively top, side and axonometric views of a slab means of figure 1;
figures 9 and 10 show respectively front and axonometric views of particulars of figure 1 in which are partially represented two or one supporting section-bars with respective slab means in mutual connection;
figures 11 - 14 show respectively front, side, top and axonometric views of supporting means of figure 1;
figures 15 and 16 show respectively front and axonometric views of a levelling guiding means of figure 1;
figures 17 - 19 show front, top and axonometric views of a particular of figure 1 comprising a supporting means, levelling guiding means and a reinforcement net;
figures 20 - 23 show respectively front, top views and two axonometric views from opposite point of view of a closing means for an end of a supporting section-bar;
figure 24 show partial axonometric view of a variant of the closing means of figure 20;
figure 25 shows a partial and axonometric view of some elements of the floor setup and supported by a beam;
the figures from 26 to 28 show respectively partial axonometric, front and partial side views of pulling means of the floor.

With reference to the figures 1 - 28, numeral 1 indicates the modular floor of the present invention comprising a set of supporting section-bars 2 placed mutually parallel and with ends laid on T-beams, one of which is illustratively shown in figures 24 and 25, of a structure for example made of steel and/or reinforced concrete, to be equipped with the floor.
Each supporting section bar 2 has a transversal section approximately in "U"-shaped with respective lateral borders 4 turned to the outside, defining a plane.
The free longitudinal ends of the lateral borders 4 are equipped with edges 5 bended at 90° in direction and orientation in accordance with that of the central portion of the "U", in other words, in the assembled condition, the edges 5 are oriented upwards. The flanks 6 of the supporting section-bar 2, corresponding to the sides of the central portion of the "U"-shaped section, are flat, mutually parallel and joined at a flat bottom 7 of the "U", by means of connection portions 8 flat and at 45° or curved.
In order to improve the grip and the keeping with eventual concrete jets, the longitudinal edges of each supporting section-bar 2 can be equipped with respective anchorages 90 each comprising a peripheral folded border which extends itself starting from the edge 5 bended at 90° of the corresponding lateral border 4.
Each supporting section-bar 2 is fit to be assembled to form the floor with the "U"-section upside down, in other words with the concavity turned down.
Said supporting section-bars 2 are preferably made by bended metallic sheet or slabs, for instance 1,5 mm (15/10 of mm) thick or anyway having a thickness adapted to the load, or, in alternative, made by made of reinforced concrete or other building materials and the like.
The supporting section-bar 2 are equipped with respective slab means 10 having almost the same transversal dimension of a set of supporting section-bars 2, for example the transversal dimension of a slab means 10 can be double of the transversal dimension of a section-bar 2; said slab means 10 being fixed to the lateral borders 4 of the respective supporting section-bars 2. Each slab means 10 is placed along the longitudinal direction of the supporting section-bars 2.
It's provided that the longitudinal dimension of the slab means 10 is a little bit smaller than that of the respective supporting section-bars 2 whose ends protrude slightly and symmetrically from said slab means 10 for the direct support by a girder of the structure.
The floor can comprise a plurality of spacer means and insulating means, for example consisting of polyethylene slabs or ribbons with a thickness of about 13 mm, interposed between the slab means 10 and the lateral borders 4 of the supporting section-bars 2.
The invention provides that the supporting section-bar 2 could be carried out in some standardized transversal dimensions and that it and the slab means 10 can be cut in factory, or in another place, at the opportune length for the structure in which the floor should be assembled.
It is also provided that the slab means can be fixed, for example with suitable screws, to the respective supporting section-bars 2 in factory, or in other place before the transport to the place for final use or also directly in building yard.
The floor comprises also a plurality of transversal connection means 70, consisting of, for example, metallic section-bars with rectangular or "O"(omega)-shaped section, fixed to the lateral borders 4 and positioned almost orthogonally to the supporting section-bars 2 for all the transversal width of the floor to fasten e stiffen it.
The floor comprises a plurality of support members 11, made of cut and shaped sheet, equipped with respective fixing means 16 fixed, for example by welding, to the longitudinal middle portions of the supporting section-bars 2 that are higher in the assembled condition of the floor 1.
Each fixing means 16 can comprise, for example, a horizontal fin equipped with one or more holes for welding or for screwing to the own supporting section-bar 2.
Each support member 11 has at least a first seat 12, for example, consisting of a slot opened upward, for a weft or warp member of an upper reinforcing net 13, for example an electrum-welded net for reinforced concrete works or the like.
Each support member 11 has furthermore at least a second seat 14 for a levelling guiding means 15, higher than the reinforcing net 13, transversal to the supporting section-bars 2 and extending itself till the whole transversal dimension of the floor. The second seat can be obtained from a horizontal portion of the support member 11 with the lateral edges bended upward to form a complementary housing to the levelling guide. The first seat can be obtained in a vertical portion of the support member 11 interposed between the horizontal portions of fixing means 16 and of the second seat.
Each levelling guiding means 15 consists of a channel bar made of bended and cut iron plate whose transversal section is rectangular, or "C", or the like shaped.
The support members 11 are fixed at equidistant manner above the respective supporting section-bar and with the first seat 12 and the second seat 14 aligned to a line transversal to the longitudinal axis of the supporting section-bar 2.
The floor comprises a plurality of closing means 17 almost flat and having plant shape almost equal to the transversal section of the concavities of the supporting section-bars 2.
Said closing means 17 are fit to be blocked to the ends of the supporting section-bars 2.
The closing means 17 can have respective supporting means 18 that, in the support condition of supporting section-bars 2 to the beams, protrude longitudinally from the ends of said supporting section-bars 2 and match the beams supporting said section-bars 2 on said beams as shown in figures 24 and 25.
The closing means 17 and supporting means 18 are made of metal and are mutually welded and screwed by means of nuts and bolts.
Figure 24 shows a possible variant of the closing means 17 constituted by a plate or slab having elongated rectangular form, extending on the ends of several supporting section-bars 2. Said closing means 17 can be blocked to the ends of several supporting section-bars 2 to close the end or the ends. The longitudinal edges of the closing means 17 are folded in the same direction to carry out matching wings for the supporting section-bars 2.
The floor comprises reinforcement means 20, for example consisting of lattices or cages made of steel rods for reinforced concrete and having almost the same length of the supporting section-bars 2.
The reinforcement means 20 are positioned between pairs of adjacent supporting section-bars 2.
The floor comprises a concrete casting 60, or the like, fit to occupy the volume comprised among the supporting section-bars 2 and the levelling guiding means 15. The closing means prevent the concrete enter into the longitudinal cavities of the supporting section-bars. In alternative, it is possible to allow the concrete to occupy said cavities by using perforated closing means or not using them
The levelling guiding means 15 allow to flatten and to smooth perfectly and quickly the concrete operating as sliding guides for a levelling shaft or other means to smooth and to flatten the concrete.
Optionally, it is also provided to insert insulating means insertion, for example, polyurethane or polyester or polystyrene foam or rock wool, into the cavities of the supporting section-bars 2.
As shown in figures 26 - 28, each of the reinforcement means 20 can comprise at least a tie-rod 80 set into the longitudinal cavity between two supporting section-bars and whose ends are connected, by means of respective coupling 81, to the ends of one or both of the two adjacent supporting section bar 2. One or both couplings 81 are equipped with tensioning means 82 of the tie-rod 80, for example of screw type.
The floor is provide with, for each tie-rod 80, at least one bending means 83 connected to an intermediate portion of one or of two supporting section-bars 2.
The bending means, for example consisting of a pulley or of an eyelet equipped with a short fixing arm on the supporting section-bars 2, it is blocked by the respective harm in a out of alignment position in respect to the geometric line joining the couplings 81. Said misalignment is in the direction of the loading force acting on the floor.
In such manner, the tension of the tie-rod transmits to the middle portion of the floor a force directly upward which can contrast the bending downward of the floor reducing the rise thereof
Preferably the tensioning means 82 are of adjustable type for adjusting the pulling tension of the tie-rod 80.
An advantage of the present invention is to provide a self- supporting modular floor namely that it does not need supporting structures and that it is practicable in short time.
Other advantage is to provide a floor with the upper surface very regular and virtually perfectly horizontal.
Further advantage is to provide a floor whose lower surface is finished and dose not need plastering.
Other advantage is to provide a floor comprising, in particular in its lower portion, cavities for housing technological nets.
Further advantage is to supply a thermally and/or acoustic isolated floor.

Claims

Modular floor characterized in that it comprises a set of supporting section-bars (2) fit to be positioned mutually parallel and with the ends supported by beams of a structure to be equipped with the floor, were each supporting section-bar (2) has a transversal section approximately "U"-form shaped.
Floor according to claim 1 characterized in that the each "U"-shaped supporting section bar (2) is made of metallic sheet or slab bended with the respective lateral borders (4) turned to outside, defining a plane and equipped with edges (5) bended at 90° in same direction and orientation of the central portion of the "U"; the flanks (6) of the supporting section-bar (2), corresponding to the sides of the central portion of the "U" section, are flat, mutually parallel and joined at the flat bottom (7) of the "U" by means of connection portions (8) approximately at 45° or curved; each supporting section-bar (2) being assembled to form the floor with the "U"-section upside down with the concavity turned downwards.
Floor according to claim 2 characterized in that it comprises at least a slab means (10) having transversal dimension approximately equal to that of one or more supporting section-bars (2) and connected to the lateral borders (4) of said supporting section-bar (2) or supporting section-bars (2).
Floor according to claim 3 characterized in that at least one slab means (10) has approximately the same longitudinal dimension of the supporting section-bars (2) and the floor comprises a plurality of spacer means and insulating means interposed between the slab means (10) and the lateral borders (4) of the respective supporting section-bars (2).
Floor according to claim 3 characterized in that at least one slab means (10) has the longitudinal dimension slightly shorter than that of the respective supporting section-bars (2) whose ends protrude slightly and symmetrically from said slab means (10).
Floor according to any of preceding claims characterized in that it comprises a plurality of transversal connection means (70) fixed to the lateral borders (4) and positioned in almost orthogonal manner to the supporting section-bars (2) of the floor.
Floor according to any of preceding claims characterized in that it comprises a plurality of support members (11) blocked at the median upper portions of the supporting section-bars (2) in the assembled condition of these htter to form the floor (1); each support member (11) has fixing means (16) for the fixing it, for example by means of welding or screwing, on it own supporting section bar (2), each support member (11) has at least a first seat (12) for a weft or warp member of an upper reinforcing net (13) and at least one second seat (14) for a levelling guiding means (15) higher than the reinforcing net (13) and consisting of a channel bar whose transversal section is rectangular, or "C", or the like shaped, having length corresponding to the length of the respective supporting section-bar (2).
Floor according to claim 1 characterized in that it comprises a plurality of closing means (17) almost flat and having the plant shape almost equal to the transversal section of the concavities of the supporting section-bars (2) or having rectangular elongated form and having length equal to the transversal dimension of one or preferably more supporting section-bars (2); each of said closing means (17) being fit to be blocked to the ends of one or more supporting section-bars (2) to close the end or ends thereof
Floor according to claim 8 characterized in that the closing means (17) have respective protruding supporting means (18) that, in the supporting condition of the supporting section-bars (2) by the beams, interconnect the ends of said supporting section-bars (2) to said beams.
Floor according to claim 1 characterized in that it comprises reinforcement means (20) with length almost equal to the length of the supporting section-bars (2) and positioned beside them.
Floor according to claim 10 characterized in that it comprises a concrete casting (60) or the like fit to fill the volume comprised among the supporting section-bars (2) and the levelling guiding means (15).
Floor according to claim 5 characterized in that it comprises insulating means inserted inside the concavities of the supporting section-bars (2).
Floor according to claim 10 characterized in that each of reinforcement means (20) comprises a tie-rod (80) whose ends are connected, at least by means of couplings (81), to the ends of at least one supporting section-bar (2); at least one of the couplings (81) is equipped with tensioning means (82) for tensioning the tie-rd (80).
Floor according to claim 13 characterized in that it comprises for each tie-rod (80) at least one bending means (83) connected to an intermediate portion of at least one supporting section-bar (2), said bending means (83) being out of alignment in respect to the geometrical line joining the couplings (81) in accordance with the direction of the loading acting on the floor.
Floor according to claim 13 characterized in that the tensioning means (82) are of adjustable type for adjusting the tensioning of the respective tie-rod (80).
Floor according to claim 1 characterized in hat the longitudinal edges of each supporting section-bar (2) have respective anchorages (90) each comprising a bended peripheral border.