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EP0322751B1 - Dispositif à incorporer dans un coffrage pour éléments en béton - Google Patents

Dispositif à incorporer dans un coffrage pour éléments en béton Download PDF

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Publication number
EP0322751B1
EP0322751B1 EP88121457A EP88121457A EP0322751B1 EP 0322751 B1 EP0322751 B1 EP 0322751B1 EP 88121457 A EP88121457 A EP 88121457A EP 88121457 A EP88121457 A EP 88121457A EP 0322751 B1 EP0322751 B1 EP 0322751B1
Authority
EP
European Patent Office
Prior art keywords
base
concrete
dovetail
raised portion
partial area
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
EP88121457A
Other languages
German (de)
English (en)
Other versions
EP0322751A1 (fr
Inventor
Ludwig Penzkofer
Claude Meyers
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.)
Max Frank GmbH and Co KG
Original Assignee
Max Frank 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
Publication date
Application filed by Max Frank GmbH and Co KG filed Critical Max Frank GmbH and Co KG
Priority to AT88121457T priority Critical patent/ATE72867T1/de
Publication of EP0322751A1 publication Critical patent/EP0322751A1/fr
Application granted granted Critical
Publication of EP0322751B1 publication Critical patent/EP0322751B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a device for inserting into a formwork for a concrete component, for example a concrete wall, according to the preamble of claim 1.
  • connection connection Such a device, also known as a “reinforcement connection”, is known (DE-U-85 30 376). This device is used to create a connection reinforcement in the connection area between a concrete component created first and a connected concrete component, the storage element also remaining in the concrete between the concrete components.
  • a reinforcement connection (DE-A-35 35 254), which has two storage elements arranged parallel to one another and at a distance from one another, each formed by an elongated profile, and a molded body which has one for each storage element Forms lid and is provided with a profile between the storage elements.
  • the molded body is removed so that the connecting parts of the reinforcing bars are accessible and can be bent.
  • the concrete of the concrete component created first has a profiled surface between the two storage elements.
  • a toothing is achieved in the concrete after the completion of the subsequent concrete component and an improvement in the thrust force transmission is achieved there.
  • the invention has for its object to provide a device of the type mentioned, which ensures a significantly improved integration or anchoring of the storage element in the concrete.
  • the configuration according to the invention ensures that the storage element is already reliably embedded in the concrete of the concrete component to be created first, so that any loosening of the storage element when bending the connecting parts is effectively counteracted. Furthermore, the design according to the invention also ensures optimal transmission of thrust despite the storage element remaining in the concrete.
  • both are achieved by the combination or interaction of the partial area having the dovetail-shaped cross-sectional profile and the at least one elevation on this partial area, which (interaction consists in the fact that, on the one hand, the storage element is caused by the elevation is also positively anchored in the concrete in the longitudinal direction of the dovetail-shaped cross-sectional profile, and that where this elevation is provided and effective, the dovetail-shaped profile cross-section effectively prevents the advance element from being lifted off the concrete, so that this in turn ensures the full effectiveness of the elevation.
  • this partial area which has the dovetail-like cross-sectional profile, is formed by at least one longitudinal groove with a dovetail-shaped cross-section, in which case a plurality of elevations which follow one another in the direction of the longitudinal groove are then preferably provided.
  • the elevations themselves can have a wide variety of shapes, but they are preferably designed such that they have a constant height transverse to the longitudinal groove or longitudinal extent of the storage element.
  • the elevations are shaped like a mushroom or a truncated cone in such a way that they have a cross section which increases with increasing distance from the bottom of the storage element.
  • the projections or elevations provided in the longitudinal groove achieve a transmission of thrust in the longitudinal direction of the storage element.
  • the dovetail-shaped cross section of the longitudinal groove ensures that the bottom of the storage element is positively connected to the subsequent concrete and thus cannot lift off from this concrete (in the direction perpendicular to the floor plane), which then also fully effects the projections Can come into effect.
  • the device shown in the figures consists of a box-shaped or profile-shaped storage element 1, which is made of sheet steel, preferably with a roughened surface.
  • the storage element 1 consists essentially of a base 2 and two legs 3 and 4 which are made in one piece with this base by angling and extend over the entire length of the storage element and which are level with the base 2 or with the surface sides of the legs 3 and 4 adjoining bottom regions 2 'enclose an angle of less than 90 °, so that the storage element 1 has an approximately dovetail-shaped cross section formed by the legs 3 and 4.
  • a longitudinal groove extending over the entire length of the storage element 1, which is formed in the illustrated embodiment so that the material of the bottom in the region of this longitudinal groove 5 in the from the bottom 2 and the legs 3 and 4 limited interior 6 of the storage element 1 is drawn.
  • the longitudinal groove 5 lying between the two regions 2 'of the base immediately adjacent to the legs 3 and 4 also has a dovetail cross-section, i.e. this longitudinal groove is formed by a floor area 7 lying parallel to the areas 2 'and by two leg areas 8 and 9, each of which forms an acute angle with the floor area 7, merges into the areas 2' of the floor and there faces the interior 6 Side with the respective area 2 'also form an acute angle.
  • the legs 3 and 4 are each provided with an angled portion 10 and 11, which also extends over the entire length of the storage element, over the outer surface of the respective leg 3 or 4 protrudes and forms an acute angle with this outer surface.
  • the device shown also has a plurality of reinforcing bars 12, each of which is U-shaped or bent as a bracket and thus each has two legs 13 and a yoke section 14 connecting this leg.
  • the reinforcement bars 12, which are arranged with the yoke sections 14 perpendicular to the longitudinal extent of the storage element 1, are guided with their legs 13 through the areas 2 'of the floor 2 in such a way that each leg 13 has the corresponding passage point through the floor 2 at the one on the left in FIG. 1
  • Area 2 'and the other legs 13 of each U-shaped reinforcing bar 12 have the corresponding passage point at the area 2 'on the right in FIG. 1.
  • Each leg 13 consists of a first section 13 ', which directly adjoins the yoke section 14, projects vertically outwards beyond the outer surface of the base 2 facing away from the interior space 6 and, together with the other section 13' and the yoke section 14, the anchoring area of the relevant section Reinforcing bar 12 forms.
  • a second section 13 "of each leg 13 is bent approximately perpendicular to the section 13 'and is arranged in the interior 6 of the storage element 1, the sections 13" forming the connecting parts of the reinforcing bars 12 to be bent out later.
  • the device In the manufacture of the concrete component to be created first, for example the concrete wall 15, the device is inserted into the formwork in question before the concrete is introduced in such a way that on its open long side (between the bends 10 and 11) through a cover and on its two end faces Closure elements closed storage element 1 with the longitudinal side closed by the cover abuts against the inner surface of a formwork wall.
  • the interior space 6 delimited by the storage element 1 is kept free of the concrete introduced into the formwork.
  • the anchoring areas of the reinforcing bars 12 and also the storage element 1 with its bends 10 and 11 are embedded in the concrete.
  • the longitudinal groove 5 is also filled with concrete.
  • the connecting parts or sections 13 "of the reinforcing bars 12 are bent in accordance with the arrow A in FIG. 2, so that these connecting parts or sections 13" are then used when creating the concrete component to be connected, namely, for example, the concrete wall 18 in the there are embedded concrete.
  • these elevations 16, which take up almost the entire width of the longitudinal groove 5 are curved in the shape of a partial cylinder in such a way that the respective cylinder axis is perpendicular to the longitudinal extent of the storage element 1, so that each elevation 16 has the same length over almost the entire width of the longitudinal groove 5 Height h protrudes above the bottom region 7 of the longitudinal groove 5 and is thus fully effective in the sense of an improvement in the transmission of thrust in the direction of the arrow C over its entire width b extending transversely to the longitudinal groove 5 or to the longitudinal extent of the storage element 1.
  • a different shape is also possible for the elevations 16, which, moreover, do not protrude beyond the regions 2 'from the longitudinal groove 5.
  • elevations 16 have a constant height h over their entire width b.
  • the accommodation of the elevations 16 in the longitudinal groove 5 has the advantage that the actual outer cross section of the storage element 1 is not increased by these elevations, which is important, inter alia, when the storage element 1 is separate from the reinforcing bars 12 or without these reinforcing bars is delivered to the respective place of use or to a manufacturer who assembles the device shown using the storage element and the reinforcing bars 12.
  • FIGS. 4 and 5 show an embodiment in which, instead of the elevations 16 or in addition to these elevations, 5 elevations 17 are provided within the longitudinal groove, which also protrude beyond the surface side of the base region 7 facing away from the interior 6.
  • the elevations 17 are formed like a mushroom or a truncated cone in such a way that they have, for example, a circular cross section in cross-sectional planes parallel to the base region 7, which cross section increases with increasing distance from the base region 7.
  • the elevations 17 are produced, for example, by first pressing out, for example, a cylindrical projection from the material of the storage element 1, as indicated by broken lines in FIG.
  • the projection 17' finally deforms into the elevation 17.
  • the dovetail shape can also be used Longitudinal groove 5 are completely dispensed with, ie in this case the storage element is then provided with a flat bottom 2 on which the elevations 17 are provided. It may then also be expedient to provide the elevations 17 in such a way that the legs 13 are each guided through the base 2 of the storage element 1 in the region of such an elevation 17, in which case in particular those when the connecting parts or the sections 13 " Particularly advantageous effects of the frustoconical or mushroom-shaped shape of the elevations 17 are present where the greatest forces are exerted on the storage element 1 when the connecting parts or sections 13 "(arrow A) are bent open.
  • the arrangement of the projections 16 and 17 in the longitudinal groove 5 on the one hand ensures that these projections do not protrude above the top of the bottom regions 2 '.
  • the arrangement of the projections 16 and 17 in the longitudinal groove 5 also ensures that the bottom 2 of the process element is positively anchored in the concrete of the concrete wall 15 by the dovetail-shaped cross section of the longitudinal groove 5, where the projections 16 and 17, respectively are effective to increase the thrust transmission, so that the floor 2 or the floor area 7 can not lift off the concrete of the concrete component 15 and thus the projections 16 and 17 are fully effective.
  • the depth of the longitudinal groove 5 is substantially smaller than the height of the storage element 1 determined by the width of the legs 3 and 4.
  • the part of the interior space 6 below the longitudinal groove 5 can also accommodate the Connection parts or sections 13 "are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Claims (10)

  1. Dispositif à incorporer dans un coffrage pour un élément en béton (15) à réaliser en premier, par exemple une paroi en béton, pour la garde de barres d'armature (12) à ancrer dans cet élément en béton (15), constitué d'un élément de garde profilé (1) à deux branches (3, 4) et à fond (2) à travers lequel passent les barres d'armature (12) à des emplacements de passage de manière telle que leurs zones d'ancrage (13', 14) sont disposées sur l'un des côtés et leurs parties de raccordement (13") devant être pliées vers l'extérieur pour le raccordement à un élément en béton (18) à raccorder ultérieurement sont disposées sur l'autre côté du fond dans un espace intérieur (6) formé par l'élément de garde (1), le fond (2) comportant entre les deux branches (3, 4) au moins une zone partielle (5) à section transversale en queue d'aronde s'étendant en direction longitudinale de l'élément de garde (1) et cet élément de garde (1) y compris la zone partielle (5) formée dans le fond (2) restant dans le béton entre l'élément en béton (15) réalisé en premier et l'élément en béton raccordé (18) caractérisé en ce
    qu'au moins une partie élevée (16, 17) est formée dans le fond (2) dans la zone partielle mentionnée (5).
  2. Dispositif selon la revendication 1 caractérisé en ce que la zone partielle (5) comportant la section en queue d'aronde forme à la face extérieure du fond (2) non en regard de l'espace intérieur (6) un évidement et la ou les parties élevées (au moins une) (16, 17) forment une saillie disposée dans l'évidement à cette face extérieure.
  3. Dispositif selon la revendication 1 caractérisé en ce que la zone partielle (5) comportant une section en queue d'aronde forme une saillie à la face extérieure non en regard de l'espace intérieur (6) de l'élément de garde (1) et la ou les parties élevées (au moins une) sur cette face extérieure forment un évidement prévu dans la zone de la saillie.
  4. Dispositif selon l'une des revendications précédentes caractérisé en ce que la zone partielle comportant la section en queue d'aronde est formé par une rainure longitudinale (5) en queue d'aronde, dont la profondeur est de préférence inférieure à la hauteur de l'élément de garde (1).
  5. Dispositif selon la revendication 4 caractérisé en ce que la rainure longitudinale (5) est ouverte à la face extérieure du fond (2) non en regard de l'espace intérieur (6).
  6. Dispositif selon la revendication 4 ou 5 caractérisé en ce qu'on prévoit au moins une partie élevée (16), de préférence une multiplicité de telles parties élevées (16), dans la rainure longitudinale (5).
  7. Dispositif selon l'une des revendications 1 à 6 caractérisé en ce que la ou les parties élevées (16) (au moins une) présentent une hauteur (h) restant sensiblement identique dans une direction d'axe transversale ou perpendiculaire à la direction longitudinale de l'élément de garde (1).
  8. Dispositif selon l'une des revendications 1 à 7 caractérisé en ce que la partie élevé (16) (au moins une) est agencée en arc ou en champignon ou en tronc de cône.
  9. Dispositif selon l'une des revendications 4 à 8 caractérisé en ce que la partie élevée (16) (au moins une) s'étend sur presque toute la largeur de l'évidement (5) en forme de rainure.
  10. Dispositif selon la revendication 8 ou 9 caractérisé en ce que la partie élevée (17) en forme de champignon ou de tronc de cône comporte simultanément aussi une zone partielle à section en forme de queue d'aronde.
EP88121457A 1987-12-29 1988-12-22 Dispositif à incorporer dans un coffrage pour éléments en béton Expired - Lifetime EP0322751B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88121457T ATE72867T1 (de) 1987-12-29 1988-12-22 Zum einsetzen in eine schalung fuer ein betonbauteil dienende vorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8717062U DE8717062U1 (de) 1987-12-29 1987-12-29 Zum Einsetzen in eine Schalung für ein Betonbauteil dienende Vorrichtung
DE8717062U 1987-12-29

Publications (2)

Publication Number Publication Date
EP0322751A1 EP0322751A1 (fr) 1989-07-05
EP0322751B1 true EP0322751B1 (fr) 1992-02-26

Family

ID=6815554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121457A Expired - Lifetime EP0322751B1 (fr) 1987-12-29 1988-12-22 Dispositif à incorporer dans un coffrage pour éléments en béton

Country Status (3)

Country Link
EP (1) EP0322751B1 (fr)
AT (1) ATE72867T1 (fr)
DE (2) DE8717062U1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE2155T1 (de) * 1979-10-03 1983-01-15 Losinger Ag Abschalungsvorrichtung mit einer grundschale und mit verbindungsstaeben.
CH656418A5 (de) * 1981-11-06 1986-06-30 Pawe Ag Armierungseisenhalter mit armierungseisen zur verwendung bei anschlussbetonierungen.
FI824194L (fi) * 1982-12-07 1984-06-08 Rake Oy Foertillverkat betongarmeringselement.
DE3535294A1 (de) * 1985-10-03 1987-04-09 Lothar Tiletschke Vorrichtung zum einsetzen in eine schalung fuer ein betonteil
DE8530376U1 (de) * 1985-10-26 1986-04-24 Hifra GmbH, Olten Bewehrungsanschluß
DE8705002U1 (de) * 1987-04-03 1987-08-20 Max Frank GmbH & Co KG, 8448 Leiblfing Einbauhilfe zum Abschalen eines Betonbauteils in einem Anschlußbereich

Also Published As

Publication number Publication date
DE8717062U1 (de) 1988-04-07
ATE72867T1 (de) 1992-03-15
DE3868612D1 (de) 1992-04-02
EP0322751A1 (fr) 1989-07-05

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