EP0136283B1 - Armature pour constructions en béton armé - Google Patents

Armature pour constructions en béton armé Download PDF

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Publication number
EP0136283B1
EP0136283B1 EP84890164A EP84890164A EP0136283B1 EP 0136283 B1 EP0136283 B1 EP 0136283B1 EP 84890164 A EP84890164 A EP 84890164A EP 84890164 A EP84890164 A EP 84890164A EP 0136283 B1 EP0136283 B1 EP 0136283B1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
elements
bar
open
bends
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.)
Expired - Lifetime
Application number
EP84890164A
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German (de)
English (en)
Other versions
EP0136283A2 (fr
EP0136283A3 (en
Inventor
Georgi Dipl.-Ing. Oroschakoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Best - Baueisen- und Stahl-Bearbeitungsgesellschaft Mbh
Original Assignee
Best - Baueisen- und Stahl-Bearbeitungsgesellschaft Mbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Best - Baueisen- und Stahl-Bearbeitungsgesellschaft Mbh filed Critical Best - Baueisen- und Stahl-Bearbeitungsgesellschaft Mbh
Publication of EP0136283A2 publication Critical patent/EP0136283A2/fr
Publication of EP0136283A3 publication Critical patent/EP0136283A3/de
Application granted granted Critical
Publication of EP0136283B1 publication Critical patent/EP0136283B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E04C5/0609—Closed cages composed of two or more coacting cage parts, e.g. transversally hinged or nested parts

Definitions

  • the invention relates to reinforcement for reinforced concrete structures, in particular basket reinforcement for rod-shaped, such as supports, beams, piles and the like, and flat, planar components, such as walls, ceilings and the like, consisting of at least one pair of flat and / or angular and / or curved bracket elements which have bends at the ends of their brackets and at least one connecting rod at a distance therefrom, at least one pull-in bar being insertable by the aligned bends of at least two bracket elements, as a result of which the bracket elements form a reinforcement cage and are inseparable and non-positive with one another are connected.
  • the reinforcement for rod-shaped reinforced concrete components traditionally consists of load-bearing reinforcing bars which run in the longitudinal direction of the component and which are combined with brackets. Closed components are used for components that are subject to pressure, such as supports. For components that are subject to bending, such as beams, open brackets are used in the center of the field, but closed in the support area.
  • the load-bearing longitudinal reinforcement bars must be threaded into the expensive baskets.
  • these reinforcing bars often have a length of 5, 6 and more meters.
  • they usually have to extend beyond the support.
  • the overhead reinforcement must even extend up to half over the support, which is normally the point of intersection between the beam and the beam or column.
  • a reinforcement cage consists of longitudinal reinforcement bars which are fastened to transverse ring elements of the cage.
  • These ring elements consist of two mats with longitudinal and cross bars, which are connected by spot welding.
  • Each of these mats is bent along their longitudinal edges so that their crossbars form aligned eyelets: after an approximately circular arc-shaped bend, the bent back end of the crossbar is brought up to it again and placed parallel and in contact with it, so that a closed eyelet is formed.
  • the bent back ends of the cross bars are connected and held together by the outer longitudinal bars.
  • the object of the invention is to provide reinforcement of the type mentioned at the outset, which avoids the difficulties described, and which offers the possibility of a simple reinforcement offers professional production, namely both the bracket with its eyelets and the load-bearing longitudinal reinforcement in the form of stackable elements, whereby the assembly of these parts on the construction site, in hardly any time, can be carried out easily and without complaint while securing the rows of eyelets when threading, and where A wide range of possible basket reinforcements can be produced, the elements of which are designed to be non-positive and fully resilient.
  • the reinforcement of the type mentioned is characterized in that the connecting rod is attached to the open bends from the inside or outside at a distance Y1 or Z1 from the outer edge of the open bend, this distance Y1 or Z1 between the Outer edge of the bend and the connecting rod corresponds approximately to D + 2.01, where D is the diameter of the bend and 01 is the rod diameter of the bracket, and that by pushing the bracket elements into one another, known per se, the open bends together form a closed eyelet through which the pull-in rod can be inserted .
  • two bracket elements are thus arranged side by side so that their open bends, which are therefore easy to produce by bending, are aligned; the pull-in rod is then inserted through these bends forming a closed eyelet, the connecting rods associated with the open bends cooperating in such a way that securing the position of the closed eyelet for threading the pull-in rod is ensured.
  • the elements are folded towards each other until their other open bends are also in alignment, through the closed eyelet of which they are formed, with appropriate securing of the position, then the other pull-in rod is pushed, making the spatial reinforcement cage easy to produce in this way.
  • Bracket elements are combined to form a partial reinforcement element by longitudinal reinforcement bars extending along them.
  • Such partial reinforcement elements can be easily prefabricated in the desired length, transported in a space-saving manner and simply combined into baskets.
  • the procedure is such that at least one pair of stirrup elements or partial reinforcement elements with the open bends at one end of their stirrups are aligned with the formation of a closed eyelet, so that the pull-in rod then passes through this eyelet is inserted that thereupon the elements are folded towards each other until the open bends at the other ends of their brackets are in alignment with the formation of a further closed eyelet, and that another pull-in rod is then inserted through this eyelet, further elements and pull-in rods being interposed if necessary can.
  • basket reinforcements of any desired type can be put together quickly and easily.
  • the bracket element E1 shown in Figs. 1 to 3 consists of a series of angularly bent, legs in length Y, Z having brackets 1, which have the rod diameter 01 and at both ends a 180 ° around a (not shown) bending mandrel bent from the diameter D have an open bend hook, and from connecting rods 2, with which they are combined, preferably by welding, to form the bracket element E1.
  • the connecting rods 2 are arranged on the outside of the hooks at a distance Y1 and Z1 from the end of the hook in order to enable a non-detachable connection to other bracket elements which are constructed on the same principle, where:
  • the hooks at the two ends of the bracket 1 are preferably to be bent by 180 °. However, the smallest bending angle must be so large that when two bracket elements are rotated 90 ° to each other, the hook ends intersect.
  • the connecting rods 2 are, preferably also made of round steel or wire, connected to the brackets 1 by welding. However, other connections are also possible, e.g. Plastic rods and couplings. It is essential that the individual brackets 1 are too rigid, i.e. dimensionally stable and in their plane not movable elements are summarized and that the connecting rods 2 are arranged as described. 4 and 5 are schematic representations of the bracket element E1 in a side view according to FIGS. 2 and 3; these schematic representations have been chosen to make the following figures clearer.
  • reinforcement cages with any dimensions and degrees of reinforcement are used.
  • FIGS. 1-5 show a partial reinforcement element E2, consisting of three mutually identical, side-by-side bracket elements E1 according to FIGS. 1-5, which are connected to the required longitudinal reinforcement in the form of bars 3 at points a to form such a reinforcement cage.
  • These longitudinal reinforcement bars 3 can also be replaced by a family of bars manufactured according to AT-PS 346 046.
  • the connections between the bars 3 or such a family of bars and the bracket elements E 1 can be carried out by welding.
  • the bracket elements E1 are not displaceable in their plane, it is sufficient if the longitudinal bars 3, or the family of bars replacing these bars, are connected to the bracket elements E1 at points a with wire.
  • Fig. 7 shows in the direction of arrows Pf.3 of Fig. 6 the view of two partial reinforcement elements E2, the second element E2 has been rotated by 90 ° with respect to the first.
  • the longitudinal bars 3 are to be arranged in such a way that the hook area remains free. It is advantageous if the distance between the end of the hook and the first rod is equal to the rod spacing e 1 or e 2.
  • the described design of the two sub-baskets E2 r and E2 I allows for a complete factory production except for the two longitudinal bars 4 and 5, which enables a sharp reduction in labor costs.
  • the complaint-free stackability of the baskets E2 I and E2 r despite the factory completion of the stirrups with the much heavier supporting reinforcement, secures secondly low freight costs. Assembling the sections E2 r and E2 on the construction site requires hardly any significant time, which, in the third place, enables the construction progress to be accelerated.
  • a stiffening element E4 is provided according to FIGS. 10 and 11.
  • the angle brackets 6 are straight at one end, at the other end they have a hook bent over by 180 °; they are with two connecting rods 7 by welding or the like. combined to form element E4. If the longitudinal bar 3 in FIG. 12 is to be secured against kinking, the element E4 is to be hooked into the longitudinal bar 3 before the partial basket E2 r is folded up. Then, as shown in FIG. 8 and already described, the partial basket E 2 r is pivoted in the direction of the arrow Pf. 5 and closed with the pull-in rod 5, as shown in FIG. 9.
  • girder reinforcement There are two further requirements for girder reinforcement, which must be taken into account in order to ensure that the entire reinforcement including the ceilings and beam support reinforcement. First of all, there must be no longitudinal bar above the lower edge of the ceiling in the girder reinforcement so that the ceiling reinforcement can be placed without threading. Secondly, it is advantageous and saves a lot of work if the reinforcement cage remains open until the negative reinforcement is inserted and can only be closed afterwards.
  • the bracket element E6 designed according to FIGS. 14 and 15 meets these requirements.
  • the bracket 8 have the same shape as the bracket 1 of the element E1 in Fig. 1; they are combined with two connecting rods 9 to form an element E 6.
  • the difference to element E1 is that in addition to the one rod 9 which, as in E1 (FIG. 1), lies on the short leg of the bracket 8 at a distance Y1 from the end of the bracket, but the second rod 9 is arranged here at a distance Z4 from the other end of the bracket is, etc. on the inside of the temple.
  • the distance Z4 must be equal to or greater than the ceiling thickness.
  • several elements E6 according to FIGS. 14 and 15 are placed next to one another and, according to FIG. 16, are combined with the distributors 10 or the longitudinal bars 11 and 12 to form an element E7.
  • this supporting reinforcement 10, 11, 12 is drawn with two different lengths; the rod 11 stops in front of the support (not shown) and is supplemented with tabs in the support area, and the longitudinal rods 12 protrude into the support.
  • the support bars, which have to reach into the column reinforcement, which is normally 1/3 of the entire support reinforcement, are then to be laid as loose individual bars after moving the open cage into the formwork.
  • Fig. 17 shows the partial basket E7 in section; As in FIG. 16, all support rods 11 and 12 have been integrated into the sub-basket E7.
  • brackets 13 are in essence straight rods, which are bent like hooks at both ends, at the bottom by 180 °, at the top by approximately 135 °, and they are combined by the connecting rods 14 to form an element E8.
  • the upper rod 14 lies on the inside of the bow rods 13, the lower rod 14 on the inside of the end of the lower hook 13 '. 1, it is essential that the bracket is bent so far below that when the element E8 is pushed into the element E7 the ends of both hooks cross, so that both parts cannot be detachably and non-positively connected to be able to.
  • FIG. 19 shows the partial reinforcement element E9, which consists of three bracket elements E8, which are connected to the longitudinal bars 15.
  • an element E7 and an element E9 are now placed side by side, and then the element E9 is inserted into the element E7 in the direction of arrow Pf. 10 until it reaches the position shown in FIG. 22 Has. Now you pull the pull rod 16 in the way formed eyelet.
  • the two parts E7 and E9 are not detachable and non-positively connected to each other in the plane of the bracket 8.
  • the element E9 is then to be folded up in the direction of the arrow Pf. 11 until it has reached the position shown in FIG. 23.
  • the element E9 can only be rotated in the direction of the arrow Pf.
  • an additional shear reinforcement element E10 according to FIG. 24 is to be inserted. It consists, similar to the element E8 in FIG. 18, of straight stirrup rods 17 bent at both ends in a hook-like manner, which are combined to form an element E10 by two connecting rods 18 which lie on the inside of the stirrup rods 17.
  • the bars 17 are bent at one lower end by approximately 180 ° and at the other, upper end by approximately 135 °.
  • the difference to element E8 is that both retaining rods 18 must be arranged at a distance from the bent ends in order to be able to hook element E10 onto the longitudinal reinforcement.
  • a C-shaped bracket 19 according to FIG. 25 is provided, with two functions if the reinforcement cage has to be assembled outside the formwork, e.g. for precast reinforced concrete parts: firstly, after the bracket 19 has been hooked onto the bars 9 and 14, as shown in FIG. 26, the element E9 is prevented from falling back in the direction opposite the arrow Pf. 11 (FIG.
  • the open basket thus assembled according to FIG. 26 is designated E11 '.
  • Fig. 28 shows the subsequent closing of the reinforcement cage E11 with an element E10 according to Fig. 24.
  • the longitudinal bar 20 is lifted into the hook of the element E7 and then, e.g. tied with wire.
  • the element E 10 is then hooked onto the rod 20 in the manner shown in FIG. 28.
  • the remaining longitudinal bars 21, as shown in FIG. 29, can be fastened to the element E10, with which the closed reinforcement cage E12 according to FIG. 29 is completed.
  • FIG. 30 shows a four-section basket in the assembled state.
  • the elements E10 according to FIG. 24 serve as shear reinforcement elements E10, which are to be hooked onto the longitudinal bars 12 when the basket according to FIG. 22 is open.
  • the other process for completion corresponds to the description for FIGS. 23 to 29.
  • 32 to 36 illustrate further possible variations which the reinforcement according to the invention offers.
  • 32 shows a composite reinforcement element E15, essentially of the same type as the element E7 according to FIGS. 17 and 20. The difference between these two elements lies only in the length of the horizontal leg: the element E7 has a leg length Y, the element E15 has a leg length Y3, where Y3 is less than Y.
  • the element E15 consists of the bracket elements E14 and the longitudinal reinforcement bars 25, 26 and 27.
  • the description regarding element E1 (FIGS. 1 to 3) applies mutatis mutandis, only the bracket 1 with 24 and the connecting bars 2 are here 23 designated.
  • Fig. 33 shows in a similar way a bracket element E17, which is a further variation of the aforementioned element E7.
  • the length of the horizontal leg of the bracket 28 is Y4 for element 17, Y4 being greater than Y.
  • the longitudinal bars are designated here with 29, 30 and the distributors with 31.32.
  • 34 and 35 show the assembly of two angular partial reinforcement elements E7 and E15 to form an open reinforcement cage E18; the description of FIG. 22 applies mutatis mutandis, the pull-in rod 16, which is pushed there into the eyelet, being designated 33 here.
  • 36 is similarly the combination of the element E 7 with element E 17 can be seen via the pull-in rod 34; it can be seen that the basket width Y6 is even larger here after the insertion of the rod 34.
  • a bracket element E20 in an angular form according to FIGS. 37 and 38 is provided, consisting of eight angle brackets 36 held together by three connecting rods 35.
  • the short stirrup leg has the length Y7 and the width of the element E20 is Z6.
  • the partial reinforcement element E21 composed of three such elements E20 can be seen in FIG. 39; the elements E20 are held together by the longitudinal reinforcement bars 37 of length Z7, which are connected by wire or welding.
  • FIG. 40-43 shows the assembly of the wall reinforcement cage E22.
  • brackets of the individual elements also have shapes other than those shown, e.g. their legs could also include an angle deviating from 90 °, such as 60 ° or 120 °, depending on the shape of the desired geometric cross sections of the cage reinforcements to be produced.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (5)

1. Armature pour constructions en béton armé, plus particulièrement armature en forme de cage pour des éléments de construction de forme allongée, tels que piliers, poutres, poteaux et similaires, ou de forme plane, s'étendant selon une surface, tels que murs, plafonds et similaires, se composant d'au moins deux éléments d'étriers, plans et/ou de forme coudée et/ou cintrés, que présentent aux extrémités de leurs étriers des parties repliées et au moins une tige de liaison située à distance de ces extrémités, les parties repliées placées en alignement d'au moins deux éléments d'etrien permettant le passage d'au moins une tige à insérer de telle sortie que les éléments d'étriers forment une armature en forme de cage et sont réunis entre eux de façon inséparable et avec assemblage en force, caractérisé en ce que, vers les parties repliées qui sont à conformation ouverte, la tige de liaison (2; 9; 18; 23; 35) est disposée intérieurement ou extérieurement à une distance Y1 ou Z1 du bord extérieur de la partie repliée ouverte, cette distance Y1 ou Z1 entre le bord extérieur de la partie repliée ouverte et la tige de liaison correspondant sensiblement à D + 2.01, où D représente le diamètre de la partie repliée et 01 le diamètre de la tige formant l'éteir (1; 8; 13; 17; 24; 28; 35), et en ce que, par l'imbrication connue en soi des éléments d'étriers (E1, E2; E6, E7; E10; E14; E16; E20), les parties repliées ouvertes forment ensemble un oeillet fermé, au travers duquel peut être introduite la tige à insérer (4, 5; 16, 20, 21; 33; 34; 38).
2. Armature selon la revendication 1, caractérisée en ce qu'au moins deux éléments d'étriers (E1, E2; E6, E7; E10; E14; E16; E20) sont réunis pour former un élément partiel d'armature (E2; E9; E15; E17; E21) au moyen de tiges d'armature longitudinale (3; 10, 11, 12; 15; 37) qui s'étendent le long de ces éléments d'étriers.
3. Armature selon la revendication 1 ou 2, caractérisé en ce qu'un élément de raidissement (E4) est prévu en outre, cet élément étant constitué d'étriers de forme coudée ([6) qui présentent une partie repliée ouverte seulement sur la branche la plus longue et qui sont réunis par des tiges de liaison (7) - Figure 10.
4. Armature selon l'une des revendications 1 à 3, caractérisée en ce qu'il est prévu en outre un élément d'armature (E10) résistant au cisaillement, constitué par des étriers droits (13) qui présentent à une extrémité une partie repliée ouverte d'environ 180° et, à l'autre extrémité, une partie similaire d'environ 135°, et par des tiges de liaison (14) - Figure 24.
5. Procédé pour l'assemblage d'une armature selon l'une des revendications 1 à 4, caractérisé en ce qu'au moins deux éléments d'étriers ou éléments partiels d'armature pourvus des parties repliées ouvertes à des premières extrémités de leurs étriers, sont disposés en alignement pour former un oeillet fermé, en ce que la tige à insérer est ensuite introduite au travers de cet oeillet, en ce que là-dessus les éléments sont rabattus l'un sur l'autre jusqu'à ce que les parties repliées ouvertes présentes aux autres extrémités de leurs étriers soient amenées en alignement pour former un autre oeillet fermé, et en ce qu'une autre tige à insérer est introduite au travers de cet autre oeillet, d'autres éléments et tiges à insérer pouvant être éventuellement intercalés.
EP84890164A 1983-09-01 1984-08-31 Armature pour constructions en béton armé Expired - Lifetime EP0136283B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0312883A AT378979B (de) 1983-09-01 1983-09-01 Bewehrung fuer stahlbetonkonstruktionen
AT3128/83 1983-09-01

Publications (3)

Publication Number Publication Date
EP0136283A2 EP0136283A2 (fr) 1985-04-03
EP0136283A3 EP0136283A3 (en) 1986-06-11
EP0136283B1 true EP0136283B1 (fr) 1990-07-25

Family

ID=3545738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84890164A Expired - Lifetime EP0136283B1 (fr) 1983-09-01 1984-08-31 Armature pour constructions en béton armé

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Country Link
EP (1) EP0136283B1 (fr)
AT (2) AT378979B (fr)
DE (1) DE3482807D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE50454T1 (de) * 1987-09-23 1990-03-15 Egco Ag Armierungselemente zur erstellung von eisenbetonkonstruktionen.
DE3943654C2 (de) * 1989-04-22 1997-03-20 Hinrich Podendorf Bewehrungskorb aus Betonstabstahl
EP0517107A1 (fr) * 1991-06-06 1992-12-09 Hayashi Seiko Co., Ltd. Ossature de construction en béton armé
AU4677596A (en) * 1995-01-13 1996-07-31 Augustinus Wilhelmus Maria Bertels A coupling between two structural elements and spatial structure with such couplings
DE19754744A1 (de) * 1997-12-10 1999-06-17 Ludwig Dipl Ing Meese Verfahren und Vorrichtung zur Herstellung eines Bewehrungselements für ein Betonbauteil
IT1393961B1 (it) * 2009-05-05 2012-05-17 Pigazzi Reti S R L Struttura per la realizzazione di gabbie di armatura per travi e metodo di assemblaggio di tale struttura
ES2576790T3 (es) * 2010-07-01 2016-07-11 Sidenor S.A. Estructura para reforzar hormigón y método para producir una estructura para reforzar hormigón

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1554767A (en) * 1924-03-21 1925-09-22 Southern Joseph Heaton Metal reenforcement for concrete
BE766864R (fr) * 1970-05-12 1971-10-01 Oroschakoff Georgi Armatures pour constructions et beton
GB1396780A (en) * 1972-05-02 1975-06-04 British Reinforced Concrete Eng Co Ltd Reinforced concrete
FR2342383A1 (fr) * 1976-02-25 1977-09-23 Treillis Panneaux Soudes Perfectionnements aux armatures pour constructions en beton arme
DE2614026A1 (de) * 1976-04-01 1977-10-06 Bauunternehmung M Allmendinger Bewehrungskorb fuer einen betonpfahl, insbesondere gruendungspfahl
IT1104985B (it) * 1978-02-16 1985-10-28 Ferriere Nord Rappresentata Da Armatura componibile per pilastri e travi in vemento armato

Also Published As

Publication number Publication date
DE3482807D1 (de) 1990-08-30
EP0136283A2 (fr) 1985-04-03
EP0136283A3 (en) 1986-06-11
ATE54985T1 (de) 1990-08-15
ATA312883A (de) 1985-03-15
AT378979B (de) 1985-10-25

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