IT202000020629A1 - METALLIC REINFORCEMENT FOR STRUCTURAL ELEMENTS IN REINFORCED CONCRETE AND STRUCTURAL ELEMENT CONTAINING SUCH REINFORCEMENT - Google Patents
METALLIC REINFORCEMENT FOR STRUCTURAL ELEMENTS IN REINFORCED CONCRETE AND STRUCTURAL ELEMENT CONTAINING SUCH REINFORCEMENT Download PDFInfo
- Publication number
- IT202000020629A1 IT202000020629A1 IT102020000020629A IT202000020629A IT202000020629A1 IT 202000020629 A1 IT202000020629 A1 IT 202000020629A1 IT 102020000020629 A IT102020000020629 A IT 102020000020629A IT 202000020629 A IT202000020629 A IT 202000020629A IT 202000020629 A1 IT202000020629 A1 IT 202000020629A1
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- Prior art keywords
- reinforcement
- reinforced concrete
- mesh
- wires
- dimensional
- Prior art date
Links
- 230000002787 reinforcement Effects 0.000 title claims description 24
- 239000011150 reinforced concrete Substances 0.000 title claims description 8
- 239000002184 metal Substances 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000004567 concrete Substances 0.000 description 9
- 238000005266 casting Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0627—Three-dimensional reinforcements composed of a prefabricated reinforcing mat combined with reinforcing elements protruding out of the plane of the mat
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
- E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Description
Descrizione del brevetto per invenzione industriale avente per titolo: Description of the patent for an industrial invention entitled:
?ARMATURA METALLICA PER ELEMENTI STRUTTURALI IN CEMENTO METALLIC REINFORCEMENT FOR CONCRETE STRUCTURAL ELEMENTS
ARMATO ED ELEMENTO STRUTTURALE CONTENENTE TALE ARMATURA? ARMOR AND STRUCTURAL ELEMENT CONTAINING THIS ARMOR?
DESCRIZIONE DESCRIPTION
Settore tecnico dell?invenzione Technical sector of the invention
[0001] La presente invenzione riguarda l?armatura metallica di rinforzo per muri doppi prefabbricati in cemento armato (double-walls). L?armatura secondo l?invenzione ? formata da una particolare rete elettrosaldata tridimensionale con cuspidi di forma triangolare, interposta tra due reti piane con duplice funzione di distanziale e collegamento. [0001] The present invention relates to the reinforcing metal framework for prefabricated reinforced concrete double-walls. The armor according to the invention ? formed by a particular three-dimensional electro-welded mesh with triangular cusps, placed between two flat meshes with the dual function of spacer and connection.
La presente invenzione riguarda inoltre un elemento strutturale, quale un muro doppio, contenente tale armatura. The present invention also relates to a structural element, such as a double wall, containing this reinforcement.
Stato della tecnica dell?invenzione State of the art of the invention
[0002] L?edilizia moderna ricorre sempre pi? spesso alla prefabbricazione automatizzata per produrre manufatti in calcestruzzo di varia tipologia in ambiente controllato. Questo permette tipicamente un contenimento dei costi, dei tempi in cantiere ed un aumento della qualit? delle strutture rispetto all?edilizia tradizionale. [0002] Modern building is increasingly used often to automated prefabrication to produce concrete products of various types in a controlled environment. This typically allows cost containment, time on site and an increase in quality? of the structures compared to traditional building.
[0003] Un elemento prefabbricato molto utilizzato ? il muro doppio (double-wall), costituito da due paramenti in calcestruzzo armato divisi da un?intercapedine che viene riempita successivamente in cantiere con un getto di calcestruzzo. Ciascuna faccia del muro doppio viene armata nel suo piano prevalentemente da uno strato di barre ordite nelle due direzioni principali, longitudinale e trasversale, oppure da una rete elettrosaldata. Ortogonalmente al piano, le due facce del muro sono collegate mediante tralicci elettrosaldati posizionati a contatto dei due strati di rete, di altezza variabile a seconda della larghezza che dovr? assumere l?intercapedine e dello spessore finale del muro. [0003] A widely used prefabricated element? the double-wall, consisting of two reinforced concrete facings divided by a cavity which is subsequently filled on site with a concrete casting. Each face of the double wall is reinforced in its plane mainly by a layer of bars warped in the two main directions, longitudinal and transversal, or by an electro-welded mesh. Orthogonally to the plane, the two faces of the wall are connected by means of electro-welded pylons positioned in contact with the two layers of mesh, of variable height according to the width that it will have to be. assume the cavity and the final thickness of the wall.
Un esempio di tale soluzione ? riscontrabile nel brevetto europeo EP 2246499. An example of such a solution? verifiable in the European patent EP 2246499.
[0004] Un fattore critico risiede nella notevole complessit? di produzione e composizione delle armature. Vi ? infatti la necessit? di preparare, manualmente o con appositi macchinari, tralicci tagliati a misura di tipologia continuamente variabile da elemento ad elemento, a partire da cataste di tralicci acquistati sul mercato. In alternativa ? possibile ottenerli direttamente a partire da bobine di filo, con macchine apposite e molto flessibili, in grado di produrre tutte le varie tipologie e lunghezze. [0004] A critical factor lies in the considerable complexity? of production and composition of the reinforcements. there ? in fact the need? to prepare, manually or with special machinery, pylons cut to size of continuously variable typology from element to element, starting from stacks of pylons purchased on the market. Alternatively ? It is possible to obtain them directly starting from reels of thread, with special and very flexible machines, capable of producing all the various types and lengths.
[0005] Un secondo fattore critico ? rappresentato dalla resistenza di questi elementi prefabbricati durante le fasi di trasporto in cantiere, per le loro non indifferenti dimensioni e peso, e del getto di calcestruzzo fresco nell?intercapedine, a causa della pressione laterale da esso generata. [0005] A second critical factor? represented by the resistance of these prefabricated elements during the phases of transport to the construction site, due to their considerable size and weight, and of the fresh concrete cast in the cavity, due to the lateral pressure it generates.
[0006] Una ulteriore criticit? deriva dalla necessit? di limitare quanto pi? possibile lo spessore delle due facce del muro doppio, al contempo rispettando le normative riguardanti gli spessori di copriferro minimi delle armature. Spesso risulta impossibile intercalare i tralicci all?interno dei fili della rete piana e questo causa sovrapposizioni indesiderate che costringono ad un aumento dello spessore delle due facce in calcestruzzo. [0006] A further critical point? comes from the need to limit as much as possible possible the thickness of the two faces of the double wall, at the same time respecting the regulations concerning the minimum thickness of the reinforcements' concrete cover. It is often impossible to insert the pylons inside the wires of the flat mesh and this causes unwanted overlaps which force an increase in the thickness of the two concrete faces.
Sintesi dell?invenzione Summary of the invention
[0007] La presente invenzione propone un sistema costruttivo innovativo per i muri doppi, che prevede l?impiego di sola rete elettrosaldata, evitando interamente l?utilizzo dei tralicci elettrosaldati. Secondo l?invenzione i tralicci sono sostituiti da una rete elettrosaldata di supporto, tridimensionale, che presenta in vista laterale una serie cuspidi di forma triangolare, e la cui altezza ? variabile in funzione dello spessore desiderato del muro. La rete tridimensionale ? sempre posizionata tra le reti piane che fungono da armatura delle due facce. [0007] The present invention proposes an innovative construction system for double walls, which provides for the use of electro-welded mesh only, entirely avoiding the use of electro-welded pylons. According to the invention, the pylons are replaced by a three-dimensional electro-welded support mesh which, in lateral view, has a series of triangular-shaped cusps, and whose height is ? variable according to the desired thickness of the wall. The three-dimensional network? always positioned between the flat meshes that act as reinforcement of the two faces.
[0008] Un primo vantaggio ? una sensibile riduzione dei pezzi componenti il rinforzo. Non ? pi? necessario possedere macchinari per tagliare a misura o produrre tralicci elettrosaldati, con conseguente risparmio di manodopera e spazio. Inoltre, un unico macchinario potrebbe produrre le reti elettrosaldate piane, comunque necessarie, ed anche la rete tridimensionale di supporto. [0008] A first advantage? a significant reduction of the pieces making up the reinforcement. Not ? more It is necessary to have machinery to cut to size or produce electro-welded trusses, with consequent savings in manpower and space. Furthermore, a single machine could produce the flat electrowelded meshes, however necessary, and also the three-dimensional support mesh.
[0009] Una seconda caratteristica importante ? rappresentata dal fatto che i fili longitudinali della rete tridimensionale possono essere posizionati in modo da risultare intercalati (complanari) ai fili della rete piana su cui si appoggia, in modo da ridurre lo spessore dell?armatura e quindi del calcestruzzo. [0009] A second important feature? represented by the fact that the longitudinal wires of the three-dimensional mesh can be positioned so as to be intercalated (coplanar) with the wires of the flat mesh on which it rests, so as to reduce the thickness of the reinforcement and therefore of the concrete.
[0010] Un ulteriore vantaggio si ottiene per le fasi di getto e vibrazione del muro prefabbricato. Tipicamente i tralicci necessitano di legature o saldature con la rete piana sulla quale vengono posizionati perch? rimangano in posizione. La rete tridimensionale pu? invece rimanere semplicemente appoggiata, con risparmio di tempo e manodopera. [0010] A further advantage is obtained for the casting and vibration phases of the prefabricated wall. Typically the pylons need tying or welding with the flat mesh on which they are positioned because? remain in position. The three-dimensional network can instead, it simply remains supported, saving time and manpower.
Breve descrizione delle figure Brief description of the figures
[0011] Vantaggi e caratteristiche dell?invenzione risulteranno evidenti dalla descrizione che segue, a titolo esemplificativo e non limitativo, con riferimento alle allegate figure, in cui: [0011] Advantages and characteristics of the invention will become apparent from the following description, by way of non-limiting example, with reference to the attached figures, in which:
- la figura 1 mostra in prospettiva un elemento strutturale con un?armatura metallica di rinforzo per un muro doppio secondo l?invenzione; - figure 1 shows in perspective a structural element with a reinforcing metal frame for a double wall according to the invention;
- la figura 2 mostra in prospettiva un?armatura di rinforzo con rete tridimensionale sagomata da inserire nell?intercapedine tra i paramenti dell?elemento strutturale di figura 1, con un particolare ingrandito; - figure 2 is a perspective view of a reinforcing framework with a three-dimensional shaped mesh to be inserted in the interspace between the facings of the structural element of figure 1, with an enlarged detail;
- la figura 3 mostra in prospettiva esplosa l?armatura di rinforzo di figura 2; - figure 3 is an exploded perspective view of the reinforcement of figure 2;
- la figura 4 mostra in prospettiva una prima forma di realizzazione della rete tridimensionale sagomata di figura 2; figure 4 is a perspective view of a first embodiment of the three-dimensional shaped network of figure 2;
- la figura 5 mostra di lato la forma di realizzazione dell?armatura con la rete tridimensionale sagomata di figura 4, con un particolare ingrandito; figure 5 is a side view of the embodiment of the reinforcement with the three-dimensional shaped mesh of figure 4, with an enlarged detail;
- la figura 6 mostra in prospettiva una seconda forma di realizzazione della rete tridimensionale sagomata di figura 2; figure 6 is a perspective view of a second embodiment of the three-dimensional shaped network of figure 2;
- la figura 7 mostra di lato la forma di realizzazione dell?armatura con la rete tridimensionale sagomata di figura 6, con un particolare ingrandito. - figure 7 is a side view of the embodiment of the reinforcement with the three-dimensional shaped mesh of figure 6, with an enlarged detail.
Descrizione dettagliata dell?invenzione Detailed description of the invention
[0012] Un elemento prefabbricato (muro doppio) 10 secondo l?invenzione, mostrato in figura 1, ? costituito da una coppia di paramenti 11, 12 in calcestruzzo armato, separati da un?intercapedine nella quale viene inserita un?unica armatura metallica tridimensionale 13. L?armatura metallica 13 viene poi riempita con un getto di calcestruzzo. [0012] A prefabricated element (double wall) 10 according to the invention, shown in figure 1, is consisting of a pair of facings 11, 12 in reinforced concrete, separated by a cavity in which a single three-dimensional metal reinforcement 13 is inserted. The metal reinforcement 13 is then filled with a concrete casting.
L?armatura metallica 13, rappresentata nel suo complesso in figura 2, viene realizzata in piano disponendo sovrapposte nell?ordine una prima rete piana 14, che forma l?armatura del paramento 11, una rete tridimensionale 15 e una seconda rete piana 16, che forma l?armatura del paramento 12. The metal reinforcement 13, represented as a whole in figure 2, is made flat by arranging, superimposed in order, a first flat mesh 14, which forms the reinforcement of the facing 11, a three-dimensional mesh 15 and a second flat mesh 16, which forms the armor of the facing 12.
Questa disposizione ? pi? chiaramente rappresentata nella vista in prospettiva esplosa di figura 3. This arrangement? more clearly represented in the exploded perspective view of figure 3.
[0013] La rete tridimensionale 15 risulta quindi interposta fra le due reti piane 14 e 16 che compongono l?armatura dei due paramenti 11, 12 dell?elemento prefabbricato 10, in modo da svolgere la funzione di elemento distanziale e di collegamento fra le due pareti del muro. [0013] The three-dimensional mesh 15 is therefore interposed between the two flat meshes 14 and 16 which make up the reinforcement of the two facings 11, 12 of the prefabricated element 10, so as to perform the function of spacer and connection element between the two walls of the wall.
La rete tridimensionale 15 ? costituita da una serie di fili metallici 17, paralleli fra loro e piegati in un rispettivo piano verticale in modo da assumere una configurazione a cuspidi 18 di forma sostanzialmente triangolare. I fili metallici 17 sono elettrosaldati con fili metallici 19 paralleli fra loro e disposti ortogonali ai fili metallici 17. The three-dimensional network 15 ? consisting of a series of metal wires 17, parallel to each other and bent in a respective vertical plane so as to assume a configuration of cusps 18 with a substantially triangular shape. The metal wires 17 are electro-welded with metal wires 19 parallel to each other and arranged orthogonal to the metal wires 17.
Il particolare ingrandito di figura 2 mette meglio in luce le modalit? di collegamento dei fili metallici 17 e 19 per formare la rete tridimensionale 15. Questo particolare consente di chiarire il principale vantaggio della soluzione innovativa della presente invenzione. Tale vantaggio consiste nella riduzione dello spessore dell?armatura in quanto i tratti rettilinei dei fili longitudinali della rete tridimensionale 15 risultano intercalati e complanari con i fili della rete piana 14 sulla quale la rete tridimensionale 15 si appoggia. La riduzione di spessore complessivo dell?armatura comporta anche la riduzione degli spessori di calcestruzzo dei due paramenti 11 e 12 della doppia parete. Quest?ultima risulta quindi pi? leggera da trasportare e mettere in opera. The enlarged detail of figure 2 better highlights the modalities? connection of the metal wires 17 and 19 to form the three-dimensional network 15. This detail makes it possible to clarify the main advantage of the innovative solution of the present invention. This advantage consists in the reduction of the thickness of the reinforcement since the straight sections of the longitudinal threads of the three-dimensional mesh 15 are interspersed and coplanar with the threads of the flat mesh 14 on which the three-dimensional mesh 15 rests. The reduction of the overall thickness of the reinforcement also involves the reduction of the concrete thicknesses of the two facings 11 and 12 of the double wall. The latter is therefore more? light to carry and operate.
[0014] La figura 4 mostra in prospettiva una prima forma di realizzazione della rete tridimensionale 15 e consente di vedere, in particolare, lo sviluppo dei fili metallici 17 e 19 incrociati fra loro, e la disposizione delle cuspidi triangolari 18. [0014] Figure 4 shows in perspective a first embodiment of the three-dimensional network 15 and allows to see, in particular, the development of the metal wires 17 and 19 crossed with each other, and the arrangement of the triangular cusps 18.
La figura 5 mostra la rete tridimensionale 15 di figura 4 vista di lato, con un particolare ingrandito per mettere in evidenza il collegamento fra i fili 17 piegati a cuspide e i fili 19 ortogonali ai fili 17 per creare la rete 15. Figure 5 shows the three-dimensional mesh 15 of Figure 4 seen from the side, with an enlarged detail to highlight the connection between the cusp-shaped wires 17 and the wires 19 orthogonal to the wires 17 to create the mesh 15.
[0015] La figura 6 mostra in prospettiva, analogamente alla figura 4, una seconda forma di realizzazione della rete tridimensionale 15. La differenza fra la forma di realizzazione di figura 6 rispetto a quella di figura 4 consiste soltanto nella diversa altezza delle cuspidi 18, che consente di adattare in modo molto semplice la dimensione, cio? lo spessore, dell?elemento strutturale (a doppia parete) da realizzare. [0015] Figure 6 shows in perspective, similarly to figure 4, a second embodiment of the three-dimensional network 15. The difference between the embodiment of figure 6 compared to that of figure 4 consists only in the different height of the cusps 18, which allows you to adjust the size in a very simple way, cio? the thickness of the structural element (double wall) to be made.
La figura 7, mostra, analogamente alla figura 5, la rete tridimensionale 15 di figura 6 vista di lato, con un particolare ingrandito per mettere in evidenza il collegamento fra i fili 17 piegati a cuspide e i fili 19 ortogonali ai fili 17 per creare la rete 15. Figure 7 shows, similarly to figure 5, the three-dimensional network 15 of figure 6 seen from the side, with an enlarged detail to highlight the connection between the wires 17 bent into a cusp and the wires 19 orthogonal to the wires 17 to create the network 15.
[0016] La rete tridimensionale 15 della presente invenzione realizza quindi i vantaggi prefissati, in particolare quello svolgere la funzione di distanziale e collegamento fra i due paramenti armati di un muro doppio, evitando l?impiego di tralicci singoli elettrosaldati, che complicherebbero la costruzione dell?armatura. [0016] The three-dimensional mesh 15 of the present invention therefore achieves the predetermined advantages, in particular that of performing the function of spacer and connection between the two reinforced facings of a double wall, avoiding the use of single electro-welded trellises, which would complicate the construction of the ?armor.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102020000020629A IT202000020629A1 (en) | 2020-08-28 | 2020-08-28 | METALLIC REINFORCEMENT FOR STRUCTURAL ELEMENTS IN REINFORCED CONCRETE AND STRUCTURAL ELEMENT CONTAINING SUCH REINFORCEMENT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102020000020629A IT202000020629A1 (en) | 2020-08-28 | 2020-08-28 | METALLIC REINFORCEMENT FOR STRUCTURAL ELEMENTS IN REINFORCED CONCRETE AND STRUCTURAL ELEMENT CONTAINING SUCH REINFORCEMENT |
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| Publication Number | Publication Date |
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| IT202000020629A1 true IT202000020629A1 (en) | 2022-02-28 |
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| IT102020000020629A IT202000020629A1 (en) | 2020-08-28 | 2020-08-28 | METALLIC REINFORCEMENT FOR STRUCTURAL ELEMENTS IN REINFORCED CONCRETE AND STRUCTURAL ELEMENT CONTAINING SUCH REINFORCEMENT |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1465570A (en) * | 1965-11-30 | 1967-01-13 | Prefabricated hollow reinforcement panel, with thin formwork walls, reinforced and braced, for the realization of construction elements | |
| DE1659036B1 (en) * | 1967-08-26 | 1971-05-19 | Baustahlgewebe Gmbh | Reinforcement for a reinforced concrete panel as shuttering for ceiling panels |
| FR2117739A1 (en) * | 1970-12-14 | 1972-07-28 | Ctre Internal Etu Techn | |
| US4104842A (en) * | 1977-02-25 | 1978-08-08 | Rockstead Raymond H | Building form and reinforcing matrix |
| DE3942753A1 (en) * | 1989-12-23 | 1991-06-27 | Schmidt Gerhard R | Mfg. three=dimensional reinforcing unit - sets longitudinal rods on supports and suspends zigzag diagnosis transversely to rods |
| DE19808509C1 (en) * | 1998-02-27 | 1999-08-19 | Beutelrock | Prefabricated double shell wall structure |
| EP2246499A2 (en) | 2009-04-22 | 2010-11-03 | Christian Prilhofer | Reinforcement element, device and method for producing a reinforcement element |
-
2020
- 2020-08-28 IT IT102020000020629A patent/IT202000020629A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1465570A (en) * | 1965-11-30 | 1967-01-13 | Prefabricated hollow reinforcement panel, with thin formwork walls, reinforced and braced, for the realization of construction elements | |
| DE1659036B1 (en) * | 1967-08-26 | 1971-05-19 | Baustahlgewebe Gmbh | Reinforcement for a reinforced concrete panel as shuttering for ceiling panels |
| FR2117739A1 (en) * | 1970-12-14 | 1972-07-28 | Ctre Internal Etu Techn | |
| US4104842A (en) * | 1977-02-25 | 1978-08-08 | Rockstead Raymond H | Building form and reinforcing matrix |
| DE3942753A1 (en) * | 1989-12-23 | 1991-06-27 | Schmidt Gerhard R | Mfg. three=dimensional reinforcing unit - sets longitudinal rods on supports and suspends zigzag diagnosis transversely to rods |
| DE19808509C1 (en) * | 1998-02-27 | 1999-08-19 | Beutelrock | Prefabricated double shell wall structure |
| EP2246499A2 (en) | 2009-04-22 | 2010-11-03 | Christian Prilhofer | Reinforcement element, device and method for producing a reinforcement element |
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