EP3997285B1 - Dispositif de raccordement - Google Patents

Dispositif de raccordement Download PDF

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Publication number
EP3997285B1
EP3997285B1 EP21711527.8A EP21711527A EP3997285B1 EP 3997285 B1 EP3997285 B1 EP 3997285B1 EP 21711527 A EP21711527 A EP 21711527A EP 3997285 B1 EP3997285 B1 EP 3997285B1
Authority
EP
European Patent Office
Prior art keywords
base
connecting device
openings
loop element
casing
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.)
Active
Application number
EP21711527.8A
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German (de)
English (en)
Other versions
EP3997285A1 (fr
EP3997285C0 (fr
Inventor
Christoph Neef
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.)
Pfeifer Holding GmbH and Co KG
Original Assignee
Pfeifer Holding GmbH and Co KG
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
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Publication of EP3997285A1 publication Critical patent/EP3997285A1/fr
Application granted granted Critical
Publication of EP3997285B1 publication Critical patent/EP3997285B1/fr
Publication of EP3997285C0 publication Critical patent/EP3997285C0/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • E04G21/126—Reinforcement continuity box for cable loops

Definitions

  • the invention relates to a connecting device according to the preamble of claim 1.
  • the precast concrete parts In order to construct supporting structures of a building made of precast concrete parts, the precast concrete parts must be connected to one another in a non-positive manner.
  • Disc-shaped wall elements are connected to each other or to vertical supports at vertical joints.
  • Corresponding grouting grooves are arranged on the end faces of the elements, on the basis of which connecting elements with storage boxes are arranged, which contain reinforcement elements that can be folded out.
  • These reinforcement elements can consist of reinforcing steel, for example.
  • Such a so-called reverse bending connection is for example in DE 39 37 275 A1 discloses, but has the disadvantage that the bending back of the reinforcing steel is cumbersome and forceful and requires robust storage boxes with large dimensions.
  • the reinforcement elements can also be designed as flexible cable elements.
  • Such storage boxes are, for example, in WO 03/008737 , the EP 0 914 531 A1 or the EP 0 534 475 A1 disclosed.
  • loop-like elements are available perpendicular to the front side, which overlap in the joint when the prefabricated elements are assembled.
  • the loops that overlap in the joint are usually over the entire height of the precast elements cast in the grouting joint with grout. After it has hardened, the grouting joint can transmit forces in different directions thanks to the overlapping connecting elements, i.e. on the one hand tensile forces in the overlap perpendicular to the joint, i.e.
  • transverse forces perpendicular to the front side of the precast elements on the other hand transverse forces perpendicular to the plane of the pane and, particularly important, transverse forces parallel to the longitudinal direction of the joint.
  • the latter represents a load case that occurs very frequently in construction practice.
  • the end of the flexible reinforcement loop elements on the anchoring side is arranged at a suitable angle of, for example, 90° with respect to a floor of the storage box.
  • plastic inserts are often provided at the bottom of the containment box which hold the anchor end of the flexible reinforcement loop member in a desired orientation.
  • this complicates the structure of the connecting device.
  • there is a risk of loss of the plastic inserts which can lead to improper alignment of the anchor end of the flexible reinforcement loop element and thus reduced load-bearing capacity.
  • connection device discloses a connection device according to the preamble of claim 1.
  • Other connection devices are in US Pat EP 2 382 363 A1 , FR 2 591 258 A1 and EP 0 819 203 A1 disclosed.
  • the invention is based on the idea of designing the bottom of the storage box directly in such a way that the desired alignment of the end of the flexible reinforcement loop element on the anchoring side results.
  • the invention provides that the reinforcement loop element bears against at least two contact points of the edge provided in the storage box floor, with at least a first contact point being at a greater distance from a floor extension plane than at least a second contact point.
  • the configuration of the storage box floor according to the invention makes it possible to precisely determine the orientation of the reinforcement loop element in relation to the storage box floor without requiring additional components, holding devices or the like. This allows the construction and parts count of the connecting device according to the invention to be minimized, while at the same time reliable load-bearing properties are ensured.
  • the at least one through-opening has an extension axis that defines an angle of at most 85°, preferably at most 75°, with respect to the extension plane of the base.
  • the base has at least one projection which has a section which is inclined relative to the base and in which the through-openings are defined.
  • This configuration enables a particularly simple and rapid production method for the connecting device according to the invention, in which, for example, the projection is first formed with its inclined section in the base and then the through-opening is produced. It is therefore not necessary to penetrate the soil material at an angle. Rather, the material can be penetrated orthogonally in the area of the inclined section, which is generally much easier to carry out than an oblique breakthrough.
  • the bottom for each reinforcement loop element defines at least two through openings provided in the portion inclined with respect to the bottom. This results in a particularly precise alignment of the reinforcement loop element. At the same time, the risk of the reinforcement loop element slipping is minimized.
  • the section inclined relative to the ground is formed flat at least in regions.
  • the edge defining the through-openings—or the section inclined relative to the base— is formed by forming, in particular by deep-drawing. This allows you to work with a very small number of starting materials, and there are no joining or connecting steps required to Design edge of the through-opening according to the invention. This results in a quicker and simpler manufacturing process.
  • the area of the through-openings is also designed as a funnel-shaped opening with the contact points in the bottom of the box. This facilitates the threading process of the reinforcement loop.
  • the base has a plurality of further projections.
  • the interlocking of the storage box in the surrounding concrete can be further improved by these projections, so that the load-bearing capacity of the connecting device according to the invention can be increased, in particular with regard to transverse force loading.
  • the bottom has a plurality of indentations, which are preferably provided alternating to the projections.
  • the alternating arrangement of the floor projections and floor depressions results in a high level of overall interlocking between the storage box floor and the concrete, which can be achieved with comparatively little manufacturing effort, in particular with comparatively low degrees of deformation when forming the floor projections and floor depressions.
  • the high degree of overall interlocking means that transverse force stresses can be introduced into the respective concrete component via the storage box floor with little slippage, so that the force transmission can be activated via the connecting device before pronounced cracking occurs in the concrete.
  • the transverse force is introduced into the concrete component via the bottom of the storage box at a point where it is no longer weakened by the joint. In this way, a frequently critical breaking off of the component flanks in the area of the joint is minimized.
  • the design of the storage box floor also has a favorable effect on the transmission of forces within the joint itself, i. H. between the grout, the flexible rebar loop elements and the containment box.
  • the load-bearing behavior can be represented conceptually by a framework model with tension and compression struts (although the present invention is not restricted in any way by this model presentation).
  • tension and compression struts are created which emanate diagonally from the storage box floors and side walls and are supported on the respective opposite storage box.
  • This support of the inclined compression struts which is decisive for the load-bearing behavior, is significantly improved by the design of the storage box floor with alternating projections and depressions.
  • the flexible reinforcement loop elements ensure that the downforce generated by the inclined compression struts, which tends to widen the joint, is absorbed and passed on.
  • retaining means for retaining the reinforcement loop element within the storage box are provided on the mutually facing inner surfaces of the side walls, which are preferably designed in the form of points or ribs.
  • the connecting device 1 schematically shows a perspective view of a connecting device 1 as a basis for the explanation of the present invention.
  • the connecting device 1 is used for connecting concrete components, in particular precast concrete parts, with a transverse force.
  • the connecting device 1 comprises an elongate storage box 10 made, for example, from sheet metal and intended to be concreted into an end face of concrete structural members.
  • the storage box 10 has a base 12 and two side walls 14, 16 extending in the longitudinal direction of the base.
  • the base has through-openings 20 through which a flexible reinforcement loop element 2 extends in such a way that the loop section 6 comes to rest in the region of the side walls 14, 16, while on the opposite side an anchoring-side end 4 is provided with a press sleeve, which presses the free ends of the reinforcement loop running element 2 connects with each other and contributes to improved anchoring in concrete.
  • the flexible reinforcement loop element 2 can be, for example, a cable formed from wires or wire strands, the reinforcement loop element 2 being able to be accommodated in the storage box 10 between the side walls 14, 16 and deflected out of it due to its flexibility. while showing 1 the collapsed state of the flexible reinforcement loop elements 2.
  • the storage box 10 is shown on the left with a flange 25, but for the most part discontinuously bent away from the storage box to the outside of the box.
  • the flange (25) is shown completely bent inwards throughout.
  • only one or the other flange variant is pronounced on a storage box.
  • the variant with the alternating flange bends 25/27 inwards and outwards is preferably used.
  • the third application point 8 is pressed laterally inwards into the sheet metal structure. It can also be created by inserting an object such as a wire pin through holes in the side of the storage box, or with a sheet metal tab inserted through a slot. It is also possible to integrate this contact point in the lateral flange as element 27 or it is part of the overall flange 25, as in an embodiment in 1 is shown.
  • the design of the through openings 20 is in 2 best seen in the schematic, a partially sectional side view of the 1 shown connecting device shows.
  • the through openings 20 are each defined by a peripheral edge 22, the reinforcement loop element 2 in 2 at two different contact points 22a and 22b of the edge 22 is present.
  • the first contact point 22a has a greater distance from an extension plane of the base 12 than the second contact point 22b.
  • the angle of the anchoring-side end of the reinforcement loop element 2 in relation to the ground 12 can be 90°, for example, or be in the range of 80° to 100°, for example.
  • the contact points 22 A and 22 B are thus present with a defined distance or lever arm between them for bending the reinforcement loop 2 . Spaced therefrom the third landing element 8 or 27, so that three elements can keep the elastic reinforcement element curved.
  • the region of the through-opening is also designed as a funnel-shaped through-opening 20 with the contact points 22 in the box floor 12 . This makes it easier to thread in the reinforcement loop 2, which consists of a wire rope.
  • edge 22 in the area of the through-opening 20 is designed like a piece of pipe and thus has an axis of extension 24 that defines an angle ⁇ of at most 85°, preferably at most 75°, with respect to the plane of extension of the base. In this way, the alignment of the end 4 of the reinforcement loop element on the anchoring side can be adjusted almost orthogonally to the bottom of the box 12 in a particularly reliable manner.
  • the side wall 14 shown has retaining means 8 for retaining the reinforcement loop element 2 inside the storage box 10, which in the present embodiment are point-shaped. Alternatively or additionally, however, it is also possible to provide other types of retaining means 8, for example in the form of ribs.
  • An embodiment of the connecting device according to the invention is 3 shown schematically in a detailed view.
  • the base 12 has a projection 18 which has a section 18a which is inclined relative to the base and in which two through-openings 20 are defined in the present embodiment.
  • the basic idea of this embodiment is to first form the projection 18 with its section 18a inclined relative to the bottom by a suitable manufacturing method such as forming, in order to then form the through-opening 20, which can be formed, for example, orthogonally to the section 18a inclined relative to the bottom. It is therefore not necessary to create a through opening that is inclined relative to the surrounding material, so that the manufacturing process can be simplified.
  • the section 18a that is inclined relative to the floor is designed to be flat, at least in sections, so that the through-openings 20 do not have to be made in curved material.
  • the arrangement is shown, inter alia, such that a kind of funnel-shaped inlet of the penetration opening results on one side. This makes it easier to thread in the elastic reinforcement loop element, for example in the form of a cut wire rope.
  • the bottom has a further projection 30 or, as in figure 5 shown, may have a plurality of further projections 30 .
  • the base 12 can also have a plurality of depressions 32, which are also in figure 5 are shown.
  • an alternating arrangement of projections 30 and depressions 32 is advantageous in order to optimize the load-bearing behavior of the connecting device according to the invention, in particular with regard to transverse force stresses.
  • FIGS. 4 and 5 are shown on the side of the storage box, for example in one of the possible embodiments, as round depressions 28 or projections 28, which ensure better retention in the concrete on the side wall of the storage box. They prevent the reinforcement loops 6 from being released from the surrounding concrete when folding out of the storage box.
  • reinforcement loop elements 2 is not limited within the scope of the present invention and that, depending on the application, a connecting device with a single reinforcement loop element 2 can also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Joining Of Building Structures In Genera (AREA)

Claims (10)

  1. Dispositif d'assemblage (1) destiné à assembler par liaison à force transversale des composants en béton, en particulier de pièces en béton préfabriquées, comprenant
    un caisson de fixation (10) allongé destiné à être introduit dans un côté frontal d'un composant, qui présente un fond (12) et au moins deux parois latérales (14, 16) s'étendant dans une direction longitudinale du fond,
    au moins un élément de boucle d'armature (2) flexible, qui peut être logé dans le caisson de fixation (10) et qui peut être dévié hors de celui-ci, dans lequel
    le fond (12) pour chaque élément de boucle d'armature (2) définit au moins deux ouvertures de passage (20) avec un bord (22) respectif, à travers lesquelles l'élément de boucle d'armature (2) s'étend, dans lequel
    l'élément de boucle d'armature (2) repose sur au moins deux points d'appui (22a, 22b) du bord, dans lequel au moins un premier point d'appui (22a) possède une distance plus grande par rapport à un plan d'extension du fond (12) qu'au moins un deuxième point d'appui (22b),
    caractérisé en ce que
    les ouvertures de passage (20) présentent respectivement un axe d'extension (24), qui définit un angle (α) de 85° au maximum par rapport au plan d'extension du fond (12) si bien qu'une extrémité (4) côté ancrage de l'élément de boucle d'armature (2) est ajustée de manière quasiment orthogonale par rapport au fond (12) du caisson de fixation (10), et en ce que
    le fond (12) présente au moins une partie faisant saillie (18), qui possède une section (18a) inclinée par rapport au fond, dans laquelle les ouvertures de passage (20) sont définies.
  2. Dispositif d'assemblage selon la revendication 1, caractérisé en ce que l'axe d'extension (24) définit un angle (α) de 75° au maximum par rapport au plan d'extension du fond (12).
  3. Dispositif d'assemblage selon la revendication 1 ou la revendication 2, caractérisé en ce que la section (18a) inclinée par rapport au fond est déformée au moins par endroits de manière plate.
  4. Dispositif d'assemblage selon l'une quelconque des revendications précédentes, caractérisé en ce que le bord (22) définissant les ouvertures de passage (20) et/ou la section (18a) inclinée par rapport au fond sont réalisés par mise en forme, en particulier par emboutissage.
  5. Dispositif d'assemblage selon l'une quelconque des revendications précédentes, caractérisé en ce que la zone des ouvertures de passage (20) est réalisée en particulier par emboutissage en tant qu'ouvertures de passage et d'enfilage (20) en forme d'entonnoir pour la boucle d'armature (2) constituée d'un câble métallique.
  6. Dispositif d'assemblage selon l'une quelconque des revendications précédentes, caractérisé en ce que le fond (12) présente une multitude d'autres parties faisant saillie (30) et/ou de renfoncements (32).
  7. Dispositif d'assemblage selon la revendication 6, caractérisé en ce que les renfoncements (32) sont prévus en alternance par rapport à des parties faisant saillie (30).
  8. Dispositif d'assemblage selon l'une quelconque des revendications précédentes, caractérisé en ce que sont prévus, sur les faces intérieures tournées les unes vers les autres des parois latérales (14, 16), respectivement des moyens de retenue (8) destinés à retenir l'élément de boucle d'armature (2) à l'intérieur du caisson de fixation (10), qui sont réalisés de manière préférée en forme de point ou en forme de nervure ou sont réalisés sur le bord du caisson de fixation (10) en tant que zone de bride (25, 27) totale ou partielle ou par au moins un élément de maintien enfiché en supplément dans le caisson de fixation.
  9. Dispositif d'assemblage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il présente précisément un élément de boucle d'armature (2) ou plusieurs éléments de boucle d'armature (2).
  10. Dispositif d'assemblage selon l'une quelconque des revendications précédentes, caractérisé en ce que le caisson de fixation présente sur les parois latérales (14 et 16) des renfoncements ou des parties faisant saillie en tant que système de retenue lors du rabattement vers l'extérieur de l'élément de boucle d'armature (2) dans le béton environnant.
EP21711527.8A 2020-03-11 2021-03-09 Dispositif de raccordement Active EP3997285B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020203116.9A DE102020203116A1 (de) 2020-03-11 2020-03-11 Verbindungsvorrichtung
PCT/EP2021/055901 WO2021180712A1 (fr) 2020-03-11 2021-03-09 Dispositif de raccordement

Publications (3)

Publication Number Publication Date
EP3997285A1 EP3997285A1 (fr) 2022-05-18
EP3997285B1 true EP3997285B1 (fr) 2023-07-26
EP3997285C0 EP3997285C0 (fr) 2023-07-26

Family

ID=74871392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21711527.8A Active EP3997285B1 (fr) 2020-03-11 2021-03-09 Dispositif de raccordement

Country Status (6)

Country Link
EP (1) EP3997285B1 (fr)
CN (1) CN115427648A (fr)
DE (1) DE102020203116A1 (fr)
HU (1) HUE062666T2 (fr)
PL (1) PL3997285T3 (fr)
WO (1) WO2021180712A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11885143B2 (en) * 2020-07-31 2024-01-30 Harry A. Thompson Oval cover member for pre-cast concrete lift hook

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819203B2 (fr) * 1995-04-04 2001-10-24 Betomax Kunststoff- und Metallwarenfabrik GmbH. & Co. KG. Dispositif de maintien d'au moins un element de fixation elastiquement deformable et procede de betonnage par section utilisant de tels elements de fixation comme jonction de betonnage
EP2773824B1 (fr) * 2011-10-31 2018-12-05 Inventio AG Boîte de brides de charge et dispositif d'ancrage
EP2382363B1 (fr) * 2009-01-23 2018-12-26 Philipp GmbH Dispositif de fixation de boucles de câble

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591258B1 (fr) * 1985-12-10 1991-04-05 Sauveplane Pierre Dispositif magnetique d'insertion d'armatures dans les coffrages metalliques notamment pour beton arme
DE3937275C2 (de) 1989-11-09 2000-06-15 Halfeneisen Gmbh & Co Vorrichtung zum Verwahren von Bewehrungsstäben für Verbindungsbereiche von Betonbauteilen
DE4131956A1 (de) 1991-09-25 1993-04-01 Philipp Gmbh Geb Seilschlaufeneinlegeteil fuer den verbund von betonfertigteilen
DE29612573U1 (de) 1996-07-20 1997-11-20 Pfeifer Seil- und Hebetechnik GmbH & Co, 87700 Memmingen Vorrichtung zum Verbund von Betonfertigteilen
DE20111702U1 (de) 2001-07-18 2002-11-21 Pfeifer Holding GmbH & Co. KG, 87700 Memmingen Vorrichtung zum Verbund von Betonfertigteilen
DE202005010080U1 (de) * 2005-06-27 2006-11-09 Pfeifer Holding Gmbh & Co. Kg Verbindungsvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819203B2 (fr) * 1995-04-04 2001-10-24 Betomax Kunststoff- und Metallwarenfabrik GmbH. & Co. KG. Dispositif de maintien d'au moins un element de fixation elastiquement deformable et procede de betonnage par section utilisant de tels elements de fixation comme jonction de betonnage
EP2382363B1 (fr) * 2009-01-23 2018-12-26 Philipp GmbH Dispositif de fixation de boucles de câble
EP2773824B1 (fr) * 2011-10-31 2018-12-05 Inventio AG Boîte de brides de charge et dispositif d'ancrage

Also Published As

Publication number Publication date
DE102020203116A1 (de) 2021-09-16
HUE062666T2 (hu) 2023-11-28
PL3997285T3 (pl) 2023-10-30
WO2021180712A1 (fr) 2021-09-16
EP3997285A1 (fr) 2022-05-18
EP3997285C0 (fr) 2023-07-26
CN115427648A (zh) 2022-12-02

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