EP2739413A2 - Method and apparatus for making concrete reinforcement cages and product obtained thereby - Google Patents
Method and apparatus for making concrete reinforcement cages and product obtained therebyInfo
- Publication number
- EP2739413A2 EP2739413A2 EP12750345.6A EP12750345A EP2739413A2 EP 2739413 A2 EP2739413 A2 EP 2739413A2 EP 12750345 A EP12750345 A EP 12750345A EP 2739413 A2 EP2739413 A2 EP 2739413A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stirrup
- interconnection element
- stirrups
- plane
- preassembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
- B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
- B21F27/125—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching individual stirrups to longitudinal wires
-
- 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
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
Definitions
- the present invention concerns a method and apparatus for assembling reinforcements for reinforced concrete, as well as the product obtained thereby.
- stirrups in order to make transverse stirrups, machines which automatically perform the folding of metal rods according to a predetermined profile are used.
- the so-obtained stirrups generally shape a polygonal profile, for example quadrangular.
- Made stirrups are separated from the rod to be worked by means of cutting, performed by a suitable cutting device of the machine for making stirrups, then they are collected and transported to the following working stations.
- stirrups technically defined as ātransverse reinforcementsā
- transverse reinforcements have a primary role in the endurance of buildings. Their number and their position are carefully defined through complex calculations, generally filed with competent offices for official controls, as an attachment to a detailed project, also as an anticipatory evidence of the due diligence in case of disputes.
- the task of the present invention is that of devising a method and an apparatus which allows to perform in an easy and automatic way the union and the desired reciprocal positioning of stirrups for reinforcement of reinforced concrete, so as to obtain a preassembly, itself object of the invention, of simple handling, transport and final assembling at the building site.
- Another scope of the present invention is that of providing an apparatus for the spacing and the fixing of stirrups used for the making of the cited preassembly, with an easy assembling and functional conception and with a surely reliable functioning, a versatile use as well as relatively economic cost.
- a further scope of the present invention is that of providing a method as well as an apparatus able to make a preassembly for reinforcements for reinforced concrete, which definitely corresponds to the project requirements, in particular assuring an optimal endurance against the forecasted stresses.
- the method and apparatus provide to make a preassembly being able to be uncompacted, wherein the stirrups made for making the reinforcement are spaced and reciprocally fixed according to the desired positioning.
- the stirrups of so-called "transverse" reinforcement are united with a plurality of longitudinal interconnection elements of easily flexible materials and substantially inextensible, that is able to assure that the distance of fixing between one stirrup and another will not substantially change during the following handlings of the preassembly for the transport and the preparing for the building site.
- the union between the stirrups and such interconnection elements enables to obtain a preassembly easy to compact in a compacted configuration wherein the stirrups are approached to each other, suitable to ease the handling, storing and transporting operations and able to be uncompacted from said compacted configuration to an uncompacted or outstretched configuration, wherein further to the extension of the interconnection means the stirrups result to be spaced according to the desired positioning, that is predetermined, thanks to the fixing to the cited interconnection means. Therefore such fixing simply imposes a maximum limit to the reciprocal spacing between the stirrups.
- Such fixing preferably occurs out of such stirrup by means of welding, or through other fixing systems.
- the distance between united stirrups is determined in a definite way by the presence of control means associated with the feeding means of the interconnection means, which measure the extension of the fed tracts, that is of the tracts between a stirrup fixing and the following stirrup fixing.
- the pitch, or more generally the axial distance between correspondent portions of the stirrups is therefore controlled in a precise and repeatable way.
- the method provides, in suitable step relationship, the relative operation of two planes: an interception plane, on which the correct positioning of the single stirrup is operated together with the union of this one with the interconnection element, and a mobile abutment plane in direction orthogonal to the interception plane, for enabling the placement of the united stirrups in a compacted configuration. Therefore, at the end of the operative steps the method allows to store on the abutment plane a preassembly, able to be uncompacted, in compacted configuration. The final product, obtained with the method, is therefore very easy to pick up from the apparatus, to handle and to transport.
- the preassembly for its use at the building site, for example, by simply acting on the end stirrups of the compacted preassembly according to opposed directions of reciprocal spacing.
- the preassembly then acquires the outstretched configuration.
- the outstretching of the interconnection elements of the preassembly allowed by the flexibility of the same elements, arranges the stirrups in the position predetermined in the project and made during the assembling step through the controlled feed to the interconnection elements.
- the interconnection elements can be for example tape-shaped, that is with a flat section, of the so-called "strap" type, or with a circular section or different, anyway suitable to be united to the support stirrups without interruption and at reciprocal predefined distances.
- the feature of the preassembly of being able to be uncompacted in particular is determined by the fact that the interconnection elements, as for example tapes, or metal wires of easy deformability or flexibility, or of other suitable materials compatible with concrete, for example carbon fibre, are easily led to form bights when the union zones of two correspondent consecutives stirrups are approached. Therefore, thanks to the "natural" bight-disposition, when the preassembly is in the compacted configuration, with approached stirrups, the interconnection element is easily led to arrange itself in the internal side of the preassembly.
- the interconnection element is as well suitable to outstretch in a configuration substantially rectilinear by means of a traction stress applied preferably by operating on the edge stirrups or directly on the same interconnection elements.
- each tract folded or bended comprised between two following fixings to the stirrups, inside the preassembly to be formed.
- each tract comprised between a union point and a following one exceeds the distance between said stirrups in the compacted configuration.
- the exceeding tracts form bights inside the preassembly in the compacted configuration, for example by simply feeding the same interconnection elements towards the inside of the preassembly.
- Such arrangement is particularly advantageous, since it allows to obtain a compacted preassembly without protrusions external to the perimeter of the stirrups, so as to completely avoid to hold out the steps of handling and transport towards the building site and without needing to use further guide members.
- the inner arrangement of the interconnection elements does not compromise in a substantial manner the consistence of the concrete cover, since the shim of this one is minimally engaged by the presence of such elements when the preassembly is arranged in use in outstretched configuration.
- At least one of the interconnection elements used for the making of the preassembly, able to be uncompacted is united with each stirrup of the product at both open vertexes of each stirrup.
- Such arrangement is particularly advantageous since it stabilizes at the same time the shape of the single stirrups and the one of the whole preassembly.
- the shape of the preassembly able to be uncompacted is in fact principally issued by the shape of the single stocked stirrups. Therefore the closing of the open vertexes of the single stirrups determines a compacted preassembly minimally deformable by the handling and the transport.
- the particular bight shape turned toward the inside of the fixing elements of the preassembly on compacted configuration assures that, also in the uncompacted or outstretched configuration and in absence of tractions operating on the preassembly, the fixing tracts are substantially oriented toward the inside of the structure. Therefore there is substantially no risk that the interconnection tracts could engage the space external to the concrete product where they could get, trigger or diffuse undesired corrosion occurrences.
- an advantageous aspect of the invention consists of an uncompacted preassembly in the cited outstretched configuration and as well completed with a plurality of strengthening bars which constitute the longitudinal or main reinforcement, by means of turnable fixing means.
- Such turnable fixing means are suitable to perform the union of the stirrups with the above mentioned strengthening bars with a function similar to articulated junctions or hinges.
- the so-made reinforced preassembly is suitable to be closed again in a flatten configuration, thanks to the cited articulated junctions.
- the reinforced preassembly can be put again in its outstretched configuration directly at the building site for performing the accomplishment operations, exclusively related to the definitive blocking.
- figure 1 shows a perspective view of the apparatus for assembling reinforcements for reinforced concrete according to the invention
- FIGS. 2 and 3 show a perspective view of a unit used in the apparatus in following operative steps
- figure 4 shows a schematic perspective view of the unit shown in figures 2 and 3, together with the preassembly, able to be uncompacted, which can be obtained thereby;
- FIGS 5, 6 and 7 show schematic views of further advantageous configurations of the product object of the invention.
- the apparatus for assembling reinforcements for reinforced concrete according to the invention is indicated in its entirety with 1 .
- the apparatus 1 comprises a fixed frame 2 suitable to shape in its inside a storage housing 3 for a preassembly, able to be uncompacted.
- a storage housing 3 for a preassembly, able to be uncompacted.
- the fixed frame 2 comprises a plurality of vertical rods 4, arranged at the vertexes of a correspondent base rectangle.
- the vertical rods 4 are stably linked through crossbars 5.
- the storage housing 3 shaped by the frame 2 is suitable to receive the stirrups 6 to be assembled at an inlet zone 7 and more precisely on a plane delineated by a centering device, as better described hereinafter.
- the frame 2 is arranged leant on suitable feet 8 and the inlet zone 7 is shaped at the top of the pillars 4, being circumscribed by the correspondent top crossbars 5 of the frame 2.
- the frame 2 can be oriented in a different way, for example vertically, with its inlet zone 7 arranged vertically on a respective side of the frame.
- the storage housing 3 is as well equipped with a mobile abutment plane or support plane 9, for example pierced-platform-shaped, assembled slidable on suitable sliding guides 10 preferably placed at the vertical rods 4.
- a mobile abutment plane or support plane 9 is horizontally arranged in figure 1 , but it can be differently placed, for example in vertical manner according to the orientation of the apparatus, as previously specified.
- the support plane 9 is mobile about the cited sliding guides 10, that is in the approaching and spacing direction of the inlet zone 7 to the storage housing 3.
- the apparatus 1 comprises the above mentioned centering device 1 1 for the stirrups 6 to be assembled, a union device 12 for the union of a stirrup 6 received from the centering device 1 1 with at least one interconnection element 13 of flexible and substantially inextensible material.
- the apparatus comprises as well a feeding unit 14 of the interconnection element or elements 13 to be united with the stirrups 6.
- the interconnection elements 13 are preferably metal elements of tape, wire or tubular type. Different elements or elements of different materials can also be provided, as long as they are provided with the cited mechanical characteristics. As concerns the technical meaning of such mechanical characteristics, the flexibility is to be intended so that such elements are suitable to freely assume a non-rectilinear shape, in particular folded, by means of approaching two spaced portions of the same element. On the contrary, the same property of the flexibility is to be intended so as that the interconnection element can on the contrary freely assume a shape substantially rectilinear coming from a bight-shape, when the above mentioned spaced portions are spaced in measure substantially equal to the extension of the tract, in the case defined by the structural project, which is interposed between them.
- the cited inextensibility characteristic refers to the fact that the correspondent tracts of the interconnection elements keep, both in the free bight- configuration and in the rectilinear one, a constant extension, that is able to assure in a reliable manner a predetermined spacing of the stirrups united with them, as described hereinafter.
- the centering device 1 1 preferably comprises a plurality of centering units independently mobile about the inlet zone 7 for allowing the correct positioning of a single stirrup 6 fed to the apparatus 1 and possibly the re-establishment of the correct shape of the stirrup 6 in case, because of an imprecision in the making or the deformability of row materials, it does not match the desired shape.
- the disclosed case provides a first centering unit 1 10a, a second centering unit 1 10b and a third centering unit 1 10c, each of them cooperating with a correspondent union unit 120 and with a respective feeding unit 140 of a correspondent interconnection element 13 (see figure 2).
- each centering unit 1 10 comprises a support arm 15 assembled slidable on at least one crossbar 5.
- first support unit 1 10a and the second support unit 1 10b are slidably assembled, in an independent manner, on a same crossbar 5 of the fixed frame 2 through respective support arms 15a, 15b, while the third centering unit 1 10c comprises a support arm 15c assembled slidable and on a respective transversal element extended between a couple of crossbars 5 substantially parallel, perpendicular to the direction in which the remaining centering units are slidable.
- the cited arms can be provided turnable with respect to the crossbar on which they are assembled.
- Each centering unit 1 10, in particular each support arm 15, carries a mobile support frame 16 suitable to be alternatively operated by respective operating means 17, mobile between an active advanced position, for intercepting at least one stirrup 6 and an inactive rear position for releasing the same stirrup.
- each support frame 16 has a couple of lateral protuberances 18 suitable to intercept, through the cited alternative movement, respective portions of one end of the stirrup 6 or of sides adjacent to a same vertex of a stirrup 6.
- the frame 16 intercepts a correspondent portion of the stirrup 6, holding up or blocking the passage to the inside of the storage housing 3, while, in the cited inactive rear position, the mobile frame 16 of the arm 15 frees the passage to the stirrup 6 of the inlet zone 7 towards the storage housing 3.
- the interception portions of the respective frames 16 of the support arm 15 of the centering units 1 10 are preferably coplanar, that is in any case arranged in such way to delineate the cited interception plane for each stirrup 6.
- Each centering unit 1 10 comprises as well auxiliary abutment means 19 suitable to enable the centering of a stirrup 6 and the re-establishment of the correct shape within the cited interception plane.
- the auxiliary abutment means 19 comprise for each centering unit 1 10 a couple of abutment bodies.
- the abutment bodies 19 can be cylindrical and can be arranged on the cited lateral portions for the interception of the mobile frame 16 of the support arm 15 (see figures 2 and 3).
- Each union unit 120 comprises union means for performing the union of a portion of a stirrup 6 intercepted and centred with respect to the abutment bodies 19, with a correspondent portion of an interconnection element 13.
- the unit comprises as well a tightening member 20 suitable to tighten the portion of stirrup 6 to be united with a portion of an interconnection element 13.
- the tightening member 20 shapes a jaw articulated to a pin 21 fixed transversally to the frame 16 of the support arm 15.
- the jaw 20 is articulated to operating means 22 suitable to allow its tilting about the transversal pin 21 .
- the jaw 20 is suitable to be alternatively operated between an opening position, wherein the portion of the stirrup 6 intercepted by the centering unit 1 10 is free from the tightening (see figure 3), and a closing position, wherein the portion of the stirrup 6 is blocked by the jaw 20 (see figure 2).
- the provided union means are welding means, therefore the tightening member 20 serves also as welding electrode, cooperating with a conjugated body 23 suitable to serve as opposed polarity electrode, being opposed to the jaw 20 with respect to the portion of the intercepted stirrup 6.
- the conjugated body 23 (see figure 2) is preferably carried by the support frame 16.
- the conjugated body 23 is preferably shaped so as to provide a curved operating surface 24 suitable to receive in unwinding the interconnection element 13 dragged by the feeding unit 140.
- the operating surface 24 is shaped so as to progressively orient the interconnection element 13 in a direction substantially perpendicular to the interception plane of the stirrup 6.
- the conjugated body 23 leads the interconnection element 13 to arrange itself according to a direction longitudinal with respect to the reinforcement to be assembled, in which the stirrups 6 represent the transversal reinforcement elements.
- union means of different kind, for example of mechanical union through crimping, riveting or sticking.
- the feeding unit 140 comprises dragging means 25, suitable to feed in controlled way tracts of the interconnection element 13 of predetermined extension.
- Such dragging means 25 can be made for example by a couple of dragging wheels, smooth, worked or suitably covered, suitable to drag while dragging the interconnection element 13.
- the element 13, preferably made by metal tape is interposed among the wheels 25 for being dragged with precision by the rotating motion of this one.
- the dragging means 25 are advantageously operated through control means, for example of encoder type.
- control means are suitable to drive the unwinding of a determined extension of tape 13, so as to assure that a quantity of tape or similar element 13 that is unwound between a union point and the following one is equal to the pre-established one.
- control means are suitable to drive the unwinding of a determined extension of tape 13, so as to assure that a quantity of tape or similar element 13 that is unwound between a union point and the following one is equal to the pre-established one.
- the wheels 25 are preferably aligned to the conjugated body 23 and to the actuation direction of the support frame 16, that is transversally to the portion of the intercepted stirrup 6 and to the articulation pin 21 of the jaw 20. Therefore the dragging made by the wheels 25 drives the tape 13 firstly on the operating surface 24 of the conjugated body 23 and then in the passage channel between the same body 23 and the stirrup 6 to be united.
- first centering unit 1 10a is illustrated during the steps of respectively tightening interception and release. It is important to observe that the first centering unit 1 10a intercepts in this case a portion of the stirrup 6 which corresponds to the overlapping vertex of the end hooks 6a, while the remaining centering units 1 10b, 1 10c respectively intercept a second vertex and a middle portion of an opposed end of the same stirrup 6, as shown in figure 1 .
- first centering unit 1 10a is suitable to cooperate with the union means 120 for performing the union of both overlapped ends of the stirrup 6 with correspondent portions of the interconnection element.
- an interconnection element 13 for example a metal tape, is prearranged at each feeding unit 140.
- the unwound tape tract is long enough to reach and overcome the operating surface 24 of the conjugated body 23. More precisely the exceeding tape or similar element beyond the operating surface 24 can contribute together with an opposed edge tract of tape or similar corresponding exceeding element to the final binding of the compacted preassembly.
- a first stirrup 6 is fed to the apparatus 1 .
- the support frames 16 of the centering units 1 10 are prearranged in active advanced position.
- the first stirrup 6 is then fed and intercepted on the plane bounded by the side portions of the support frames 16, intercepting the tape or similar element 13 against the conjugated body 23.
- the mobile support plane 9 is prearranged in a position close to the interception plane, in the storage housing 3 beyond the inlet zone 7.
- the tightening members 20 are operated for firmly tightening the portions of tape or similar unwound externally to the portions of stirrups intercepted by the centering units 1 10.
- the union means are operated, performing the union of the tapes 13 or similar elements with the stirrup 6 in each of the intercepted positions.
- one of the unions with the fed stirrup 6 is made at the vertex of the stirrup comprising both overlapped portions of the hooks 6a, so as to assure a better structure endurance.
- the tightening members 20 are driven back to the inactive open position, disengaging the intercepted portions of the stirrup 6 and of the belt 13.
- the dragging means 25 are then operated in a controlled way, so as to unwind a tract of belt 13 of pre-established length. More precisely such extension corresponds to the distance between the first stirrup 6 and the following one according to the structural project.
- the project provides that the stirrups 6 are arranged in parallel manner, the measure of such unwinding is equal for each dragging element and corresponds to the projected step between the correspondent stirrups.
- the project could provide that the stirrups 6 are arranged within the reinforcement according to inclined laying planes, with the purpose of adapting their orientation to the distribution of the foreseen cutting loads.
- the unwinding of tape 13 or of other similar element could be driven in a different measure for different feeding units 140.
- the fed stirrups 6 have different shape, for making a preassembly of parallelepiped shape also with stirrup orientations on incident planes.
- the apparatus for making stirrups linked to the apparatus according to the invention is connected to the same apparatus through electronic communication means suitable to transmit in input to the centering units 1 10 the geometrical parameters of the stirrups to be shaped, so as to automatically adapt the position parameters according to the variations of the production parameters.
- the tape 13 or similar element is arranged in this way toward the inside of the stirrup 6. Thanks to the flexibility of the same, the tape 13 or other similar element is arranged inside the stirrup 6 forming a bight.
- interconnection means 13 of the tape or strap type that is with a substantially flat section
- the flexibility is increased around the main axis of the section, therefore the unwinding of exceeding material entails the arrangement of the same element in bights toward the inside of the stirrups 6.
- the first stirrup 6 united to the tapes 13 or to similar interconnection elements is released by the centering units 1 10, through the displacement of the support frames 16 in the inactive position.
- the stirrup 6 is then transferred to the mobile support plane 9 prearranged close to the storage housing 3 for receiving the preassembly in formation.
- a second stirrup 6 is fed for being united with the prearranged tapes 13, in the very same way of the preceding case.
- the controlled feed performed in the preceding step assures that the tract of tape 13 interposed between the just made union and the one to be made is equal to the distance pre-established by the project between the correspondent portions of the first and the second stirrup of the reinforcement to be formed.
- the first stirrup placed on the abutment plane and the second stirrup are preferably at an approached distance with respect the one of the project.
- the tract of the disengaged interconnection element 13 already united with one end of the first stirrup 6 arranged on the abutment plane forms the cited bight configuration turned inwards between the first and the second fed stirrup.
- the positioning of the second stirrup 6 intercepts, between the same stirrup 6 and the union and tightening means 20, a determined portion of tape or similar fed element 13. The distance between such determined portion and the portion of the interconnection element 13 previously united with the first stirrup 6 corresponds to the distance established by the project between the same stirrups.
- the mobile support plane 9 is suitably spaced from the interception plane of the centering groups 1 10, so as to create between them a space for the second stirrup 6 already united according to the thickness which it occupies and in suitable step relationship. Subsequently this second stirrup 6 is released towards the support plane 9 in contact with the already placed first stirrup. In this way a preassembly, able to be uncompacted, comprising the stirrups 6 and the interconnection tapes 13 is created on the above mentioned mobile support plane 9 (see figure 4).
- the stirrups 6 united in succession with the interconnection elements 13 are stored on the mobile support plane 9 in a not completely stacked configuration, that is maximally compacted, and that the complete compaction in instead performed in a final step, suitably approaching the mobile support plane 9 with the last stirrup 6 united with the preassembly.
- the preassembly results anyway completed in the storage housing 3 when all the stirrups 6 provided by the project are united at the pre-established distances and approached to each other in a final compacted configuration.
- the compacted preassembly preferably has exceeding corners of tape or similar element 13 exceeding from the edge stirrups.
- a preparation final step it is possible to perform the tying of such terminal corners in order to assure the preassembly to be in the compacted configuration.
- Such preassembly is anyway easy to uncompact, by simply removing the cited tying, if provided, and performing a traction to the edge stirrups. It will be also easy to introduce the longitudinal strengthening bars when the assembled preassembly is still in compacted configuration. In the uncompacted configuration then the preassembly brings the stirrups back to the precise positions imposed in the preassembly production step as provided by the project, thanks to the inextensiveness of the interconnection element.
- Such preassembly 60 is formed by means of the following union of longitudinal strengthening bars 61 with at least some stirrups of the preassembly. More precisely the longitudinal strengthening bars 61 are inserted inside the preassembly in the project positions, for example at the vertexes of the stirrups 6 with not tightened unions, that is rotatable bonds, so that they allow a minimum play and a correspondent articulation movement in the union points. In such way the preassembly can cinematically be represented by an articulated quadrilateral.
- the preassembly reinforced in flattered position 60a is then easy to transport to the building site, where it can easily be opened by picking up the longitudinal strengthening bars 61 arranged on the top.
- the reinforcement that is the reinforced preassembly 60, comes then back to the initial configuration, represented in figure 4, ready for the concrete casting.
- the reinforced preassembly keeps itself the characteristics of reduced dimensions, but its accomplishment requires less labour in the building site because the longitudinal bars 61 result already inserted and correctly positioned.
- the flexible interconnection means 13 of the preassembly are previously arranged on same opposed sides for easing the flattering of the product.
- the embodiment of the invention may vary depending on the requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Wire Processing (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000483A ITBO20110483A1 (en) | 2011-08-03 | 2011-08-03 | METHOD AND EQUIPMENT FOR ASSEMBLING ARMORED REINFORCEMENT CONCRETE AND PRODUCT |
PCT/EP2012/065243 WO2013017684A2 (en) | 2011-08-03 | 2012-08-03 | Method and apparatus for making reinforcement irons and product obtained thereby |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2739413A2 true EP2739413A2 (en) | 2014-06-11 |
EP2739413B1 EP2739413B1 (en) | 2018-07-25 |
Family
ID=44653408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12750345.6A Not-in-force EP2739413B1 (en) | 2011-08-03 | 2012-08-03 | Method and apparatus for making concrete reinforcement cages and product obtained thereby |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2739413B1 (en) |
ES (1) | ES2692273T3 (en) |
IT (1) | ITBO20110483A1 (en) |
WO (1) | WO2013017684A2 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US919100A (en) * | 1908-02-21 | 1909-04-20 | Philadelphia Steel & Wire Co | Metallic reinforce for concrete construction. |
BE785759A (en) * | 1971-10-01 | 1973-01-02 | Thiel S Draadindustrie N V Van | DISTRIBUTION REINFORCEMENT COMPOSITION |
SU734361A1 (en) * | 1977-11-09 | 1980-05-15 | Š¦ŠµŠ½ŃŃŠ°Š»ŃŠ½ŃŠ¹ ŠŠ°ŃŃŠ½Š¾-ŠŃŃŠ»ŠµŠ“Š¾Š²Š°ŃŠµŠ»ŃŃŠŗŠøŠ¹ Š ŠŃŠ¾ŠµŠŗŃŠ½ŃŠ¹ ŠŠ½ŃŃŠøŃŃŃ Š¢ŠøŠæŠ¾Š²Š¾Š³Š¾ Š ŠŠŗŃŠæŠµŃŠøŠ¼ŠµŠ½ŃŠ°Š»ŃŠ½Š¾Š³Š¾ ŠŃŠ¾ŠµŠŗŃŠøŃŠ¾Š²Š°Š½ŠøŃ ŠŠ“Š°Š½ŠøŠ¹ Š¢Š¾ŃŠ³Š¾Š²Š»Šø,ŠŠ±ŃŠµŃŃŠ²ŠµŠ½Š½Š¾Š³Š¾ ŠŠøŃŠ°Š½ŠøŃ, ŠŃŃŠ¾Š²Š¾Š³Š¾ ŠŠ±ŃŠ»ŃŠ¶ŠøŠ²Š°Š½ŠøŃ Š Š¢ŃŃŠøŃŃŃŠŗŠøŃ ŠŠ¾Š¼ŠæŠ»ŠµŠŗŃŠ¾Š² | Reinforcement framework and method of its manufacture |
JPS5779035A (en) * | 1980-11-05 | 1982-05-18 | Fujita Corp | Method and tool for placing horizontal reinforcing bar group in reinforcement placing work |
JP2984054B2 (en) * | 1990-11-30 | 1999-11-29 | äøč±ć¬ć¤ćØć³ę Ŗå¼ä¼ē¤¾ | High strength fiber reinforcement |
IT1273800B (en) | 1994-02-10 | 1997-07-10 | Schnell Srl | METHOD AND EQUIPMENT FOR REALIZING METAL CAGES FOR REINFORCED CONCRETE AND METAL CAGE SO OBTAINED |
-
2011
- 2011-08-03 IT IT000483A patent/ITBO20110483A1/en unknown
-
2012
- 2012-08-03 WO PCT/EP2012/065243 patent/WO2013017684A2/en unknown
- 2012-08-03 EP EP12750345.6A patent/EP2739413B1/en not_active Not-in-force
- 2012-08-03 ES ES12750345.6T patent/ES2692273T3/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2013017684A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP2739413B1 (en) | 2018-07-25 |
WO2013017684A3 (en) | 2013-05-10 |
ES2692273T3 (en) | 2018-12-03 |
WO2013017684A2 (en) | 2013-02-07 |
ITBO20110483A1 (en) | 2013-02-04 |
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