EP0717159B1 - Dispositif de liaison des panneaux de coffrage, coffrage composite ainsi obtenu et procédé de fabrication - Google Patents

Dispositif de liaison des panneaux de coffrage, coffrage composite ainsi obtenu et procédé de fabrication Download PDF

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Publication number
EP0717159B1
EP0717159B1 EP95119722A EP95119722A EP0717159B1 EP 0717159 B1 EP0717159 B1 EP 0717159B1 EP 95119722 A EP95119722 A EP 95119722A EP 95119722 A EP95119722 A EP 95119722A EP 0717159 B1 EP0717159 B1 EP 0717159B1
Authority
EP
European Patent Office
Prior art keywords
connecting apparatus
plug
formwork
spacer
formwork panels
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
EP95119722A
Other languages
German (de)
English (en)
Other versions
EP0717159A1 (fr
Inventor
Walter Stadel
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.)
Robert Klinger GmbH
Original Assignee
Robert Klinger GmbH
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 Robert Klinger GmbH filed Critical Robert Klinger GmbH
Publication of EP0717159A1 publication Critical patent/EP0717159A1/fr
Application granted granted Critical
Publication of EP0717159B1 publication Critical patent/EP0717159B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8635—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties attached to the inner faces of the forms

Definitions

  • the invention relates to a connecting device in EP-B1-0 537 727 described type, namely in the form of the variant from there S.6 Z.55-S.7, Z.2 with one each to be attached to a formwork part and between two parts of a spacer strut.
  • the assembly of the known device for producing composite formwork is carried out as follows:
  • the two mostly designed as chipboard Formwork panels for the production of composite formwork are on their in Composite position facing inner surfaces evenly distributed Equipped system parts.
  • the plant parts are with their foot surfaces on the inner surfaces screwed tight. They are positioned so that mutually assigned system parts of the two formwork panels for two and two face to face in alignment.
  • the one to be produced by the composite formwork Reinforced wall using a steel mesh.
  • the system parts Provided with fixing devices for holding a steel mat. This ensures that the structural steel mat is in a parallel position occupies the assigned inner surface of the formwork panel.
  • With the finished cast Wall is therefore the structural steel mat with a sufficient distance from the Poured wall surface parallel to this in the wall material.
  • the connecting devices that hold together a composite formwork are used when pouring, and often also with a vibrator Solidification of the concrete is very opposite in its direction of joining Direction loaded on train.
  • This train is from the connector between the two parts of the system and the one between them Spacer strut added.
  • the plug connections are as spring catches formed which the tensile forces mentioned without loosening the locking connection have to record.
  • the two parts of the system and the one that connects them Spacer struts are one-piece parts made of plastic and are based on the one-piece molded spring latch connections acting tensile force create a significant material and shaping problem.
  • the pressure exerted by the joining press are sufficient to the spring-loaded ratchet equipped with high tensile strength to snap into place.
  • the spacer is used to overcome the design and material problems the known device is tubular.
  • the one for stability important pipe shape is just at the ends of the spacer strut axial incisions weakened sustainably, which is a radial deflection of there allow attached spring tongues.
  • the pipe jacket must also be of sufficient large openings to be pierced when pouring the wall to ensure complete filling of the pipe interior. Otherwise empty spaces would appear in the wall from the wall material, that absolutely must be avoided.
  • These shaping problems place high demands on the plastic material, which in addition to this in considerable Scope (approx. 30%) is glass fiber reinforced.
  • connection device is known in which the Place system parts in recesses in the formwork panels. From the with the formwork surface aligned with the inside of the formwork a bracket emerges in which a spacer with a hook-shaped part can be attached. A fixing device for holding a steel mesh is not scheduled.
  • the invention has for its object a device of the beginning to propose the type with which the manufacture or assembly of a Composite formwork made easier, especially with the help of a robot is feasible. This task is achieved through the combination of features of the Claim 1 solved.
  • the holding forces to maintain the plug position are relatively low, so that the joining forces to be overcome by the mechanical device are also limited.
  • the from the connector to the Formwork panels of the composite formwork to be applied considerable tensile forces are not in the direction of joining, but approximately at right angles to it effective and can accordingly in a simple manner according to claim 2 or 3 can be included.
  • there is no tube shape for the spacer strut required because the tensile forces occurring when casting the wall are not effective in the direction of release of the connector. This means the freedom of design significantly increased for the distance strut. This results in same tensile strength, considerable savings in part weight and material quality, which costs up to 30% in terms of costs.
  • claim 9 can be kept in the usual standard dimensions Structural steel mat by simply clipping onto a system part in its target position the formwork panel parallel to it.
  • Structural steel mats usually have the shape of a square grid usually brought into the wall to be cast in such a way that their wire rods framing intermediate square passages either are aligned horizontally or vertically.
  • the feature of claim 11 comes to this extent a meaning to, so that the insertion direction for the joining process of the spacer strut is determined becomes. This is because it is carried out at an angle of approximately 45 ° to the vertical when standing upright Formwork panels from top to bottom.
  • the Lifting a fully assembled formwork unit using a connection unit attacking crane does not counter the weight load Joining direction, but at an angle of about 45 ° to it. This is always another insertion of the spacer struts into the space between vertical Upright formwork panels possible from above.
  • the further invention is based on an assembly method of a composite formwork according to claim 15 and on the composite formwork itself according to claim 16 directed.
  • the plant part 1 has - but not necessarily - about the outer shape of a truncated cone with the foot surface 2 and a head surface 3. It is a plastic injection molded part, which in its interior is hollow because it essentially has a constant wall thickness 4. This creates a bell shape in cross section with below the head surface 3 lying cavity 5.
  • the plant part 1 is assigned with its foot surface 2 on the inside of the Formwork wall (not shown) mounted, especially screwed tight.
  • the annular flange 6 forming the base surface 2 has a contact flange A large number of fastening holes 7 distributed uniformly over its circumference on, whose axes run approximately parallel to the central longitudinal axis 8, which at the same time forms the central longitudinal axis of the spacer 9, which in the assembled state normal or perpendicular to the surface of the two the formwork unit to the side bounding formwork walls runs.
  • An insertion guide 10 is located on the top surface 3 of the plant part 1 as a receptacle for the arranged at the two ends of the spacer 9 Slide-in shoes 11.12.
  • the positive insertion of a shoe 11 or 12 into a slide-in guide 10 takes place in the slide-in direction 13.
  • the cross-sectional shape of the insertion groove 10 can be seen particularly clearly from FIG. 1.
  • the shape is the Hit top surfaces 14 of the shoe heads 11, 12, that the shoes 11, 12 firmly with their sole surfaces 16 against the groove bottom 17th be pressed.
  • a spring catch projection 18 is incorporated, which in the direction of insertion 13 ramped out of the head area with his Locking end 19 protrudes beyond the head surface 3 in the axial direction 8.
  • the spring catch projection is pressed into the plane of the head surface 3.
  • the locking end 19 of the exposure through the sole surface 16 of the shoe 11, 12 free and the Locking tongue springs upwards out of the head surface 3 and the locking end 19th lies behind the heel end 22 of the respective shoe 11, 12 and secures it captively in its insert end position.
  • FIG. 1 shows the plant part with an orientation of the slide-in guide 10 or an insertion direction 13 in which the latching tongue 18 in the lower left quadrant is arranged and the insertion direction 13 at an angle of about 45 ° to the upper right quadrant. This is about the turning position, which occupies the system part 1 in a form mounted on a formwork wall.
  • This orientation of the insertion direction of the system part 1 ensures that by lifting the fully assembled formwork unit a crane the weight load on the through the slide 10 bounding fixed groove side walls or at the end stop, but not on the spring latching projection or the latching tongue 18.
  • the lateral surface of the system parts contains the notches 7 of analog EP-B1-0 537 727 for snap-in connection or for adhesive insert fixing of locking elements suitable for reinforcing steel mesh, namely recesses 23.
  • the locking troughs 23 are through Spring tongues 24 flanked when inserting the strut one Spread the reinforcement mat apart and thus a special fixation Wires or the like spare.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Claims (16)

  1. Dispositif destiné à la jonction en écartement de plaques de coffrage afin de former un coffrage composite comprenant :
    une partie d'appui respective, avec :
    une surface de pied (2) pour la fixation sur les plaques de coffrage,
    une surface de tête (3) écartée de la surface de pied et présentant un logement d'enfichage, ainsi que
    des éléments à enclenchement (23) destinés à fixer une armature, comme par exemple un treillis en acier de construction, à mettre en place entre les plaques de coffrage, et comprenant
    une entretoise d'écartement (9) dont les deux extrémités sont susceptibles d'être fixées respectivement par une liaison à enfichage sur l'un des logements d'enfichage,
    caractérisé en ce que
    la direction d'enfichage (13) des deux liaisons à enfichage aux extrémités s'étend approximativement perpendiculairement à la distance d'écartement, respectivement à l'axe longitudinal médian (8) de l'entretoise d'écartement (9), et
    les éléments à enclenchement (23) sont agencés entre la surface de tête (3) et la surface de pied (2) par rapport à l'axe longitudinal médian (38) ou à la direction d'écartement.
  2. Dispositif de jonction selon la revendication 1, caractérisé en ce que l'entretoise d'écartement (9) présente aux deux extrémités des contre-dépouilles qui s'étendent dans la direction d'enfichage (13), et engage à l'aide de celles-ci des saillies correspondantes des parties d'appui (1).
  3. Dispositif de jonction selon la revendication 2, caractérisé par le fait que l'engagement postérieur a lieu avec coopération de formes.
  4. Dispositif de jonction selon l'une ou l'autre des revendications 2 et 3, caractérisé en ce que l'entretoise d'écartement (9) présente aux deux extrémités un patin d'enfilement respectif (11, 12), et les parties d'appui (1) présentent un guidage d'enfilement correspondant (10).
  5. Dispositif de jonction selon la revendication 4, caractérisé par selon la revendication 4, caractérisé en ce qu'il est prévu sur une partie des appuis (1) une butée finale (21) qui limite l'enfilement d'enfichage de l'entretoise d'écartement (9) dans une position finale d'enfichage.
  6. Dispositif de jonction selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'il est prévu sur les parties d'appui (1) un dispositif de fixation qui agit automatiquement dans la position finale d'enfilement pour assurer une fixation en coopération de formes des entretoises d'écartement (9).
  7. Dispositif de jonction selon la revendication 6, caractérisé par le fait que le dispositif de fixation est un dispositif de blocage avec enclenchement par ressort.
  8. Dispositif de jonction selon la revendication 7, caractérisé en ce que les éléments d'enclenchement sont des creux d'enclenchement (28) flanqués de languettes à ressort (24) pour la mise en place par encliquetage d'entretoises de renfort.
  9. Dispositif de jonction selon l'une des revendications 1 à 8, caractérisé en ce qu'il est prévu quatre creux d'enclenchement (23) disposés dans un plan et formant un carré qui entoure la position de fixation des entretoises d'écartement (9) au milieu, ledit carré correspondant à la maille dimensionnelle normalisée d'un treillis d'acier de construction.
  10. Dispositif de jonction selon l'une des revendications 1 à 9, caractérisé en ce que les creux d'enclenchement (23) sont disposés dans un plan entre la surface de tête (2) et la surface de pied (3) de la partie d'appui (1).
  11. Dispositif de jonction selon l'une des revendications 8 à 10, caractérisé en ce que la direction d'enfichage forme un angle d'environ 45° par rapport au tracé longitudinal des creux d'enclenchement (23) ou respectivement par rapport aux côtés du carré.
  12. Dispositif de jonction selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que l'entretoise d'écartement (9) est une pièce structurée nervurée sur ses flancs extérieurs et formant des espaces librement accessibles depuis l'extérieur.
  13. Dispositif de jonction selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ses pièces individuelles sont des pièces moulées en matière plastique d'une seule pièce.
  14. Dispositif de jonction selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ses parties d'appui (1) ont une forme identique.
  15. Procédé pour le montage d'un coffrage composite à partir de deux plaques de coffrage dressées en opposition mutuelle, en particulier debout parallèlement l'une à l'autre, au moyen d'un dispositif de jonction selon l'une des revendications précédentes, caractérisé en ce que les parties d'appui (1) associées à une entretoise d'écartement (9) sont montées sur les plaques de coffrage avec des logements d'enfilement (10) dirigés vers le haut sous un angle d'orientation égal d'environ 45°, et en ce que les entretoises d'écartement (9) sont enfilées depuis le haut jusque dans leur position de fixation.
  16. Coffrage composite comprenant des plaques de coffrage essentiellement rectangulaires, qui sont maintenues à distance les unes des autres par un dispositif de jonction selon l'une ou plusieurs des revendications précédentes 1 à 14, caractérisé en ce que les logements d'enfilement (10) des parties d'appui (1) sont orientés dans la même direction avec leurs ouvertures d'enfilement, et en ce que leur direction longitudinale (13) forme un angle aigu d'environ 45° avec les arêtes latérales des plaques de coffrage.
EP95119722A 1994-12-15 1995-12-14 Dispositif de liaison des panneaux de coffrage, coffrage composite ainsi obtenu et procédé de fabrication Expired - Lifetime EP0717159B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9420755U 1994-12-15
DE9420755 1994-12-15

Publications (2)

Publication Number Publication Date
EP0717159A1 EP0717159A1 (fr) 1996-06-19
EP0717159B1 true EP0717159B1 (fr) 1999-02-10

Family

ID=6917947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119722A Expired - Lifetime EP0717159B1 (fr) 1994-12-15 1995-12-14 Dispositif de liaison des panneaux de coffrage, coffrage composite ainsi obtenu et procédé de fabrication

Country Status (4)

Country Link
EP (1) EP0717159B1 (fr)
AT (1) ATE176700T1 (fr)
DE (1) DE59505087D1 (fr)
ES (1) ES2129743T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2209251C (fr) * 1997-07-04 2001-10-02 Frank B. Bentley Systeme de coffrage
DE29713879U1 (de) 1997-08-05 1997-10-02 Nemis Establishment, Vaduz Abstandhalter
DE19946320B4 (de) * 1999-09-28 2012-08-09 Max Bögl Bauunternehmung GmbH & Co. KG Doppelwand
CN111168837A (zh) * 2020-02-20 2020-05-19 上海三足鼎新材料股份有限公司 钢筋间隔件及应用该钢筋间隔件的pc墙生产方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH669235A5 (en) * 1984-12-19 1989-02-28 Paul Wuhrmann Concrete wall erection method - uses shuttering halves with couplings engaged by pushing together and left on site
US4698947A (en) * 1986-11-13 1987-10-13 Mckay Harry Concrete wall form tie system
DE59200259D1 (de) * 1991-10-18 1994-08-04 Kunz Gmbh & Co Verbindungseinrichtung für Platten und/oder Bewehrungen einer Verbundschalung.
DE9314513U1 (de) * 1993-09-24 1993-12-02 Bauelemente Heilig GmbH, 73540 Heubach Verbindungsvorrichtung für einander gegenüberliegende Platten einer verlorenen Schalung

Also Published As

Publication number Publication date
EP0717159A1 (fr) 1996-06-19
ES2129743T3 (es) 1999-06-16
DE59505087D1 (de) 1999-03-25
ATE176700T1 (de) 1999-02-15

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