US20120090262A1

US20120090262A1 - Structure for the production of armatures for beams and assembly method of said structure

Info

Publication number: US20120090262A1
Application number: US13/318,744
Authority: US
Inventors: Marcello Scola; Marco Di Prisco; Gianluigi Norberto Pigazzi
Original assignee: PIGAZZI RETI Srl
Current assignee: PIGAZZI RETI Srl
Priority date: 2009-05-05
Filing date: 2010-04-21
Publication date: 2012-04-19
Also published as: EP2427606A1; ITMI20090761A1; WO2010127799A1; CA2761113A1; WO2010127799A8; IT1393961B1

Abstract

A structure (10, 10′, 10″, 10′″) for producing beams, comprising a lower mesh element (11) and an upper mesh element (12), said two mesh elements (11, 12) being arranged parallel, spaced apart and connected by at least one counteraction strut element (60, 80), at least two L-shaped side connection groups (14, 14′) arranged along opposite sides of said two mesh elements (11, 12) and at least one central connection group (13, 13′, 70, 15, 16) arranged between said at least two side connection elements (14, 14′).

Description

The present invention relates to a round armature for reinforced concrete for the production of beams, and an assembly method of said structure.
Particular structures are currently used as supports/armatures in the field of building constructions for the production of beams and construction elements in general, obtained by the coupling of metal elements called “armature bars”.
At present, these support/armature structures are normally produced in the construction site, by joining the above armature bars.
The above procedure, however, unfortunately requires long assembly times, as each element must be coupled with the others to produce the required structure, and it is also exposed to the use of more armature bars than is necessary, due to the necessity of standardizing the armature as much as possible to avoid excessively complicating the assembly.
The general objective of the present invention is to solve the above drawbacks of the known art in an extremely simple, economical and particularly functional way.
Another objective is to produce a structure for making beams which is equivalent, with respect to static performances, to analogous structures, but at the same time allowing a reduced assembly time and the use of a smaller quantity of material.
A further objective is to produce a structure for making beams which can be obtained through pre-shaped elements only, that can be positioned in some specific points on the basis of a relative static calculation effected in advance.
Another objective is to produce a structure for making beams capable of using non-standard optimized meshes which allow the use of both a longitudinal and transversal armature, suitably situated.
A further objective is to produce a structure for making beams whose rapid and easy assembly does not require welding and/or binding points.
In view of the above objectives, according to the present invention, a structure for making beams has been conceived together with a relative assembly method of said structure, having the characteristics specified in the annexed claims.
The structural and functional characteristics of the present invention and its advantages with respect to the known art will appear even more evident from the following description, referring to the enclosed drawings, which show a structure for making beams produced according to the innovative principles of the same invention.

In the drawings:

FIG. 1 is a perspective view of a first embodiment example of a structure for making beams, according to the present invention;

FIG. 2 shows some elements of the structure of FIG. 1;

FIG. 3 and FIG. 4 show other elements of the structure of FIG. 1;

FIG. 5 shows an assembly phase of the structure of FIG. 1;

FIG. 6 shows another assembly phase of the structure of FIG. 1;

FIG. 7 is a perspective view of a second embodiment example of a structure for making beams, according to the present invention;

FIG. 7′ is a perspective view of a structure for making beams, according to the present invention, of the type of FIG. 7;

FIG. 8 is a perspective view of another structure for making beams, according to the present invention, of the type of FIG. 7;

FIG. 9 shows an element of the structure of FIG. 7;

FIG. 10 shows an element of the structure of FIG. 7′;

FIG. 11 is a perspective view of a third example of a structure for making beams, according to the present invention;

FIG. 12 is a raised view of a fourth example of a structure for making beams, according to the present invention.

With reference to FIGS. 1, 8, 11 and 12, four embodiment examples of structures for making beams according to the present invention, are indicated as a whole by 10, 10′, 10″ and 10′″.
According to the invention, the structures 10, 10′, 10″ and 10′″ for making beams, include a lower mesh element 11 and an upper mesh element 12.
Other integration meshes can be added to the lower mesh 11 and upper mesh 12, to be positioned directly resting on the meshes 11 and 12, according to the structural requirements.
These meshes 11, 12, as shown in FIG. 2, can have different geometries, and/or have a mesh, rectangular for example, which does not necessarily have a coinciding pitch.
These at least two mesh elements 11 and 12 are positioned separate from and parallel to each other and are maintained in this reciprocal position by suitable connecting means.
These connecting means, as shown, for example, in the first embodiment of FIG. 1, include at least two “L”-shaped side connecting groups 14 and 14′, situated in correspondence with two opposite sides of the at least two mesh elements 11 and 12.
The presence of at least one central connecting group 13, 13′, 70, 15, 16 situated between said two side connecting elements 14 and 14′, is also envisaged.
Various structures are defined for the production of the beams, according to the invention, in relation to the variations in the different embodiments of the central connecting groups 13, 13′, 70, 15, 16, which will be described subsequently.
A first structure for the production of beams 10 is shown in FIG. 1 and comprises at least one central “U”-shaped connecting group 13 situated between the meshes 11 and 12, in an intermediate position with respect to the previous at least two side connecting elements 14 and 14′.
The structure 10 can also include, laterally with respect to the central “U”-shaped connecting group 13, as shown in FIG. 1, two central inverted “U”-shaped connecting groups 13′, situated between the at least two side connecting elements 14, 14′.
Each central inverted “U”-shaped connecting group 13′ comprises a plurality of inverted “U”-shaped elements 13′ situated one after another, parallel and spaced apart.
These inverted “U”-shaped elements 13′ are joined to each other by at least one longitudinal rod along the lower sides, in correspondence with the lower mesh 11.
In particular, said inverted “U”-shaped central connecting group 13′ can be alternative to the central “U”-shaped connecting group 13, as shown in the embodiment of FIG. 11.
The structure is completed by the installation of strut elements 60 laterally interposed directly between the two mesh elements 11 and 12, preferably with a constant pitch, indicatively one meter.
In particular, as can be seen in FIG. 4, the at least one central “U”-shaped connecting group 13, comprises a plurality of “U”-shaped elements 13 situated parallel to each other, one after another and spaced apart.
These “U”-shaped elements 13 are joined to each other by means of at least one lower bar 23, 23′ to produce the above-mentioned central connecting group 13.
In particular, once the above lower bar 23, 23′ has been assembled to the relative “U”-shaped elements 13, the same 23, 23′ joins the lower sides of the “U”-shaped elements 13 to each other, in correspondence with the lower mesh 11.
The at least two “L”-shaped side connection groups, 14 and 14′, each comprises, as shown in FIG. 2, a plurality of “L”- shaped elements 14, 14′ situated one after another, parallel to each other and suitably spaced.
As can be seen in FIG. 1, the lower sides of said “L”- shaped elements 14, 14′, once assembled, are positioned in correspondence with the lower mesh 11 and directed towards the inside of the structure 10, 10′, 10″, 10′″.
In particular, the above-mentioned “L”- shaped elements 14, 14′ can be joined to each other by at least one lower bar 24, 25, 24′, 25′ along the relative lower sides, in correspondence with the lower mesh 11 and/or by a side bar 26, 26′ along the relative side portions between the at least two mesh elements 11, 12.
With the elements described so far, it is possible to produce two different structures 10, 10′, in particular for the production of construction beams, as shown in FIGS. 1 and 11 respectively.
These structures 10, 10′ comprise two meshes 11 and 12, lower and upper, respectively, which are maintained in a reciprocal parallel position, spaced by “L”-shaped side connection groups 14, arranged in series on one side of the meshes 11 and 12, “L”-shaped side connection groups 14′, in series, in a specular position with respect to the previous groups 14, and central connection groups 13, 13′ in series interposed between said side connection groups 14, 14′.
The elements 14 and 14′ can also be identical to each other.
In particular, said beams 10, 10′ are advantageously extremely easy to assemble, as all the elements used for the structure are in fact already shaped.
If there are any particular structural requirements, for example in correspondence with the pillars, the beam structure of the present invention can also include at least one element suitable for absorbing the punching stress caused by a concentrated load.
These elements can include a plurality of inverted “Ω”- shaped elements 15, 16, positioned longitudinally and/or transversally to the structure 10′″, as shown in FIGS. 7, 7′, 8.
As can be seen in FIG. 9, these inverted “Ω”-shaped elements 15, are joined to each other by at least one lower bar 25, 25′ in correspondence with the lower mesh 11 and by at least one upper bar 26, 26′ in correspondence with the upper mesh 12.
Analogously, as shown in FIG. 10, the inverted “Ω”-shaped elements 16, are joined to each other by a lower bar 27, 27′, in correspondence with the lower mesh 11 and by at least one upper bar 28, 28′, in correspondence with said upper net 12.
Finally, in another embodiment shown in FIG. 12, the structure 10″ can include at least two bracket elements 70 arranged in front of each other between the “L”- shaped elements 14, 14′, wherein said bracket elements 70 extend from the lower mesh 11 beyond the upper mesh 12.
In this case, in order to produce a structure for “T”-shaped beams, a second upper mesh 12′ is envisaged for connecting the upper ends of the bracket elements 70 situated in front of each other.
Also in this case, strut elements 60 are envisaged, vertically arranged and tilted struts 80, positioned between the bracket elements 70.
The assembly method of a structure 10, 10′, 10″, 10′″ for producing beams according to the present invention, comprises the assembly phases of:

- a. laying the side connection elements 14, 14′;
- b. coupling the lower mesh 11 to the side connection elements 14, 14′;
- c. coupling the central connection group 13, 13′, 70, 15, 16 to the lower mesh 11;
- d. laying the upper mesh 12 on the side connection elements 14, 14′ and on the central connection group 13, 13′, 70, 15, 16;
- e. coupling the opposing strut elements 60, 80 to the lower and upper meshes 11, 12.

If a beam 10 is produced, as shown in FIG. 1, the coupling phase of the central connection group 13, 13′, 70, 15, 16 to the lower mesh 11 comprises the phase of coupling a plurality of “U”-shaped elements 13 to the lower mesh 11, as described above.
Alternatively, in order to produce a beam 10′, as shown in FIG. 11, the above plurality of “U”-shaped elements 13 can be replaced by the plurality of inverted “U”-shaped elements 13′.
If there are particular punctual loads, the coupling phase of the central connection group 13, 13′, 70, 15, 16 to the lower mesh 11, comprises the phase of coupling a plurality of elements inverted “Ω”-shaped 15, 16 to the lower mesh 11.
Finally, in the embodiment of “T”-shaped beams, as shown in FIG. 12, the method also comprises the following phases:
a) coupling brackets 70 with the lower mesh 11, said brackets 70 extending beyond the upper mesh 12;
b) positioning a top mesh 12′ above the brackets 70;
c) positioning strut elements 80 in an inclined position between the brackets 70 and coupling them to the meshes 11, 12′.
From the above description and with reference to the figures, it is evident that a structure for the production of beams and the assembly method of said structure according to the invention are particularly useful and advantageous.
The structure for the production of beams, object of the present invention, in fact, allows a time saving in the assembly and a smaller quantity of material in view of the fact that the mesh can be assembled in the factory and/or directly in the construction site with the sole coupling of pre-shaped elements which can be positioned in points obtained by a static calculation.
Finally, it should be pointed out that what is described in the text and drawings represents a portion or module of the beam of a certain length.
The system, in fact, envisages that, by the superimposition, if necessary, or juxtaposition of all the elements, except the struts 60 and 80 which are positioned occasionally according to necessity, desired lengths can be produced according to the requirements of the structural project, with the possibility of varying the dimensions of the elements from one module to another.
In other words, the system described is completely modular.
The objective indicated in the preamble of the description has therefore been achieved.
The forms of the structure for the production of beams of the invention, as also the materials and assembly procedures, can naturally differ from those shown for purely illustrative and non-limiting purposes in the drawings.
The protection scope of the invention is therefore delimited by the enclosed claims.

Claims

1. A structure (10, 10′, 10″, 10′″) for making beams comprising a lower mesh element (11) and an upper mesh element (12), said two mesh elements (11, 12) being arranged parallel to one another, spaced apart and connected by at least two L-shaped side connection groups (14, 14′) arranged along opposite sides of said two mesh elements (11, 12) and by at least one central connection group (13, 13′, 70, 15, 16) arranged between said at least two side connection groups (14, 14′)

characterized in that

said structure (10, 10′, 10″, 10′″) further comprises counteraction struts (60, 80), interposed between the two mesh elements (11,12).

2. Structure (10, 10′, 10″, 10′″) according to claim 1, characterized in that said at least one central connection group (13) comprises a plurality of U-shaped elements (13) one after the other parallel to one another and spaced apart, said U-shaped elements (13) being joined together by at least one lower rod (23, 23′) along the lower sides at said lower mesh (11).

3. Structure (10, 10′, 10″, 10′″) according to claim 1, characterized in that said at least one central connection group (13′) comprises a plurality of inverted U-shaped elements (13′) one after the other parallel to one another and spaced apart, said inverted U-shaped elements (13′) being joined together by at least one lower rod along the lower sides at said lower mesh (11).

4. Structure (10, 10′, 10″, 10′″) according to claim 1, characterized in that said L-shaped side connection groups (14, 14′) each comprise a plurality of L-shaped elements (14, 14′) one after the other parallel to one another and spaced apart and equipped with lower sides at said lower mesh (11) pointing towards the inside of said structure (10, 10′, 10″, 10′″), said L-shaped elements (14, 14′) being joined together by at least one lower rod (24, 25, 24′, 25′) along the lower sides at said lower mesh (11).

5. Structure (10, 10′, 10″, 10′″) according to claim 4, characterized in that said L-shaped side connection groups (14, 14′) also comprise a side connection rod (26, 26′) of said L-shaped elements (14, 14′) along the lateral sides between said at least two mesh elements (11, 12).

6. Structure (10, 10′, 10″, 10′″) according to claim 1, characterized in that said at least one central connection group (15) comprises a plurality of inverted Ω-shaped elements arranged longitudinally.

7. Structure (10, 10′, 10″, 10′″) according to claim 6, characterized in that said inverted Ω-shaped elements (15) are joined together by at least one lower rod (25, 25′) at said lower mesh (11) and by at least one upper rod (26, 26′) at said upper mesh (12).

8. Structure (10, 10′, 10″, 10′″) according to claim 1, characterized in that it comprises at least one central connection group (16) comprising a plurality of inverted Ω-shaped elements arranged transversally.

9. Structure (10, 10′, 10″, 10′″) according to claim 8, characterized in that said inverted Ω-shaped elements (16) are joined together by at least one lower rod (27, 27′) at said lower mesh (11) and by at least one upper rod (28, 28′) at said upper mesh (12).

10. Structure (10, 10′, 10″, 10′″) according to claim 1, characterized in that it comprises at least two bracket elements (70) arranged one in front of the other between said L-shaped elements (14, 14′), said bracket elements (70) extending from said lower mesh (11) beyond said upper mesh (12) up to a second upper mesh (12′), said brackets (70) being arranged one in front of the other to make a structure for T-beams, with inclined struts (80) being foreseen between said brackets (70).

11. Method for assembling a structure (10, 10′, 10″, 10′″) for making beams according to claim 1, characterized in that it comprises the following assembly steps:

a) positioning said at least two side connection elements (14, 14′);

b) coupling said lower mesh (11) with said side connection elements (14, 14′);

c) coupling said central connection group (13, 13′, 70, 15, 16) with said lower mesh (11);

d) fitting said upper mesh (12) onto said at least two side connection elements (14, 14′) and onto said central connection group (13, 13′, 70, 15, 16);

e) coupling said counteraction strut elements (60, 80) with said lower and upper meshes (11, 12).

12. Method according to claim 11, characterized in that said step of coupling said central connection group (13, 13′, 70, 15, 16) with said lower mesh (11) comprises the step of coupling a plurality of U-shaped elements (13) with said lower mesh (11).

13. Method according to claim 11, characterized in that said step of coupling said central connection group (13, 13′, 70, 15, 16) with said lower mesh (11) comprises the step of coupling a plurality of inverted U-shaped elements (13′) with said lower mesh (11).

14. Method according to claim 11, characterized in that said step of coupling said central connection group (13, 13′, 70, 15, 16) with said lower mesh (11) comprises the step of coupling a plurality of inverted Ω-shaped elements (15, 16) with said lower mesh (11).

15. Method according to claim 11, characterized in that it also comprises the assembly steps of:

a) coupling brackets (70) with the lower mesh (11), said brackets (70) extending beyond said upper mesh (12);

b) fitting a top mesh (12′) above said brackets (70);

c) positioning strut elements (80) in inclined position between said brackets (70) and coupling them with said meshes (11, 12′).