EP2604775B1 - Schalwand, die eine Führungsvorrichtung für eine Verstrebungsstange umfasst - Google Patents

Schalwand, die eine Führungsvorrichtung für eine Verstrebungsstange umfasst Download PDF

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Publication number
EP2604775B1
EP2604775B1 EP20120008223 EP12008223A EP2604775B1 EP 2604775 B1 EP2604775 B1 EP 2604775B1 EP 20120008223 EP20120008223 EP 20120008223 EP 12008223 A EP12008223 A EP 12008223A EP 2604775 B1 EP2604775 B1 EP 2604775B1
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EP
European Patent Office
Prior art keywords
spacer
support
panel
bearing support
rod
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
EP20120008223
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English (en)
French (fr)
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EP2604775A1 (de
Inventor
Thierry Braud
Patrick Micheneau
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.)
Sateco SA
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Sateco SA
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Filing date
Publication date
Application filed by Sateco SA filed Critical Sateco SA
Publication of EP2604775A1 publication Critical patent/EP2604775A1/de
Application granted granted Critical
Publication of EP2604775B1 publication Critical patent/EP2604775B1/de
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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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/0642—Devices for extracting or inserting wall ties or parts thereof
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/002—Workplatforms, railings; Arrangements for pouring concrete, attached to the form
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
    • E04G17/0651—One-piece elements
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
    • E04G17/0651—One-piece elements
    • E04G17/0652—One-piece elements fully recoverable
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G2011/067—Integrated forms comprising shuttering skin, bracing or strutting arrangements, workplatforms and railings

Definitions

  • the invention relates to the field of construction formwork, and more particularly the formwork shuttering.
  • a panel conventionally comprises a wall, a front face, called formwork face, is intended to extend inside the formwork to come into contact with the material cast in the formwork.
  • the wall of the panel has a plurality of orifices therethrough transversely in each of which a spacer can be inserted.
  • a device for guiding a spacer rod is conventionally attached to the rear face of the wall of the box facing each spacer hole of the formwork.
  • a spacer rod conventionally comprises a proximal end for manipulation by an operator and a distal end having a thread for allowing its screwing into a complementary threaded portion.
  • an operator grasps a spacer rod by its proximal end 11 and introduces its distal end 12 into a first guiding device 4 of the first panel B1 so that the spacer rod 1 enters a first spacer hole 2 of the first panel B1 substantially perpendicular to the first form face AV1.
  • the operator then introduces the distal end 12 of the spacer rod 1 into a spacer hole 2 of the second panel B2 so that it is received and locked in the second guide device 4 of the second panel B2.
  • each guiding device 4 comprises a support plate 41 parallel to the formwork front face AV1, AV2 on which the clamping nut 3 comes to rest. In position locked, the spacer rod 1 keeps the form faces AV1, AV2 parallel to each other as shown in FIG. figure 1 .
  • an operator To remove a spacer rod 1, an operator conventionally uses a key to apply a loosening torque to the clamping nut 3 from the rear face AR1 of the first panel B1. Due to the mechanical tension, the clamping nut 3 is firmly locked and the operator is forced to force to apply a sufficient loosening torque. When the operator can not loosen the clamping nut 3, he is forced to add an accessory to lengthen his key and thus lengthen the lever arm of the key so as to apply a greater loosening torque.
  • This implementation is particularly restrictive because it requires the operator to have such an extension tube.
  • the withdrawal time of a spacer rod 1 is increased which is detrimental. In extreme cases, when the use of an extension attachment does not make it possible to loosen the clamping nut 3, the operator is forced to cut the clamping nut 3 in order to remove the spacer rod 11 and thus release the B1, B2 banches.
  • the present invention aims to eliminate at least some of these disadvantages to improve the removal of a spacer rod connecting two shuttering formwork after use.
  • the invention relates to a shuttering panel comprising a formwork front face in which is formed at least one spacer hole and a rear face on which is mounted a device for guiding a spacer rod through said orifice spacer, said guide device comprising a support support adapted to be in contact with a clamping nut locking the position of the spacer rod in said spacer hole, the guide device comprising means for moving the spacer; support support with respect to the formwork front face of the formwork.
  • the displacement means it is possible to release the tightening tension of the support support, which facilitates the loosening of the clamping nut and thus the removal of the spacer rod.
  • the support support By bringing the support support closer to the formwork front face, the support support is moved away from the clamping nut, which makes it possible to reduce the mechanical tension between the nut and the support support.
  • the displacement means are adapted to incline the support support relative to the formwork front face of the formwork.
  • Only a portion of the support support is movable which facilitates the design of the guide device and extends its life.
  • the displacement means are adapted to move the support support parallel to the formwork front face of the formwork.
  • the support support is in the form of a flat plate and advantageously allows a plane contact with the clamping nut which secures its clamping.
  • the support support comprises a guide orifice of a spacer rod in order to precisely guide the spacer rod.
  • the guide orifice is in the form of a groove, preferably vertical, to allow the inclination of the support support while guiding the spacer rod.
  • the displacement means comprise a pivot rod adapted to rotate the support support relative to the formwork front face.
  • a guide device with a pivot rod is robust which improves its service life.
  • the displacement means comprise an inclination rod rotatably mounted relative to the bearing support, the inclination rod comprising at least one cam whose circumferential surface is arranged to bear against a stop portion of the herehe.
  • the displacement of the support support is controlled by modifying the angular position of the inclination rod in an easy and practical manner.
  • the invention further relates to a method of removing a spacer rod mounted between two shuttering boxes opposite, at least one of the panels having a spacer hole and a guiding device in which is mounted the spacer rod through said spacer port, said guide device having a bearing support on which is tightened a clamping nut locking the position of the spacer rod in said spacer hole, wherein the support support is moved relative to the formwork front face of the formwork so that the support support is spaced from the clamping nut and the spacer rod is removed.
  • the mechanical tension relative to the support support is released prior to removal of the spacer rod which accelerates the withdrawal and limits the physical fatigue of the operator.
  • the support support is inclined relative to the formwork front face of the formwork so that the support support is spaced from the clamping nut.
  • FIG. 3 a formwork shuttering B comprising a vertical wall 20, defining a formwork front face AV which is flat and a rear face AR opposite to the flat front face AV.
  • wall 20 is meant a thickness of the panel B formed of one or more panels, identical or different.
  • the vertical wall 20 of the wall B is pierced, in this example, four spacer holes 2 extending perpendicularly to the plane defined by the formwork front side AV. Each spacer hole 2 is adapted to receive a spacer 1 for adjusting the parallelism of AV formwork faces of the panels B vis-à-vis to ensure the constant thickness of the formwork between the two panels B.
  • the spacer 1 is in the form of an elongated body intended to extend transversely, in the use position, through the formwork surfaces AV of two panels B vis-à-vis.
  • Each spacer 1 has a proximal end 11 to be manipulated by an operator and a distal end 12 having a thread to allow its screwing into a complementary threaded portion.
  • a clamping nut 3 is screwed to the proximal end 11 of the spacer rod 1 to lock it in position.
  • formwork board B comprises a device 5 for guiding a spacer rod 1 mounted on its rear face AR to allow the guide of a spacer rod 1 in a spacer hole 2 of the formwork board B.
  • a housing 21 is formed in the rear face AR of the wall 20 of the box B to accommodate the guide device 5 as shown in FIG. figure 4 .
  • the guiding device 5 comprises a support support 51 on which is intended to rest the clamping nut 3 when the latter is screwed to the proximal end 11 of the spacer rod 1.
  • the bearing support 51 is in the form of a support plate 51 which is flat and which extends substantially vertically so that the nut 3 is in plane contact with the support plate 51 when the latter is screwed.
  • the support plate 51 has a guide through orifice 52 in which the spacer rod 1 is intended to extend in the clamping position.
  • the guide through orifice 52 is in the form of a substantially vertical groove ( Figure 4 ).
  • the guiding device 5 comprises means for moving the support support 51 relative to the front formwork AV of the panel B.
  • these means when the latter is screwed in, it is possible to move the support support 51 away from the clamping nut 3, in order to significantly reduce the mechanical tension in the clamping nut 3, the spacer rod 1 and the support support 51. Indeed, by moving the support support 51, it no longer exerts mechanical force on the clamping nut 3. It can then unscrew the clamping nut 3 and remove the spacer rod 1 easily, without excessive effort.
  • the displacement means include, in this example, a pivot rod 6 adapted to allow the inclination of the support support 51 relative to the front formwork AV of the panel B.
  • the pivot rod 6 extends horizontally and is mounted in guide holes 53 of the guiding device 5 ( Figure 7B ) and in guide lights 23 ( Figure 4 ) of housing 21 of panel B.
  • the pivot rod 6 forms a pivot connection between the upper part of the support support 51 and the housing 21 of the B form to allow angular displacement of the lower part of the support support 51.
  • the support support 51 can tilt relative to the front formwork front AV of the B-side to facilitate the loosening the clamping lock 3 as will be presented later.
  • the guiding device 5 comprises a base 50 in the shape of a U, integral with the support support 51, which is mounted in the housing 21 of the panel B.
  • the guide lights 53 of the guiding device 5 are formed in the lateral parts of the base 50 of the guiding device 5.
  • the displacement means of the guide device 5 further comprises a tilt rod 7, rotatably mounted relative to the device 5, on which are mounted integrally two cams 8 whose circumferential surface 81 is arranged to bear against an abutment portion 22 of the wall B as shown in FIG. figure 6 .
  • Such cams 8 advantageously make it possible to modify the distance between the lower part of the support support 51 and the abutment portion 22 so as to modify the inclination of the support support 51.
  • the inclination of the support support 51 is as a function of the angular position of the inclination rod 7.
  • the inclination rod 7 extends in a horizontal housing formed in the guiding device 5 and comprises, at one of its ends, an activation head which is, in this example, of hexagonal shape so that it can be turned with a key.
  • the shape of the activation head is similar to the shape of the clamping portion of the clamping nut 3 so that the inclining rod 7 and the clamping nut 3 can be rotated. by the same key.
  • the cams 8 comprise a circumferential surface 81 adapted to be in contact with an abutment portion 22 of the panel B so as to move the support support 51 away from the wall 20 as a function of the angular position of the cams 8.
  • each guide device 1 When placing the formwork, before the concrete is poured into the formwork, the support 51 of each guide device 1 is locked in a vertical position so as to extend parallel to the formwork front face AV of the panel B.
  • an operator adjusts the angular position of the tilt rod 7 so that the cams 8 rest on the abutment portion 22 of the panel B.
  • the support support 51 extends in accordance with the prior art.
  • the operator can then introduce a spacer rod 1 and lock it in position by means of a clamping nut 3 resting on the vertical surface of the support support 51.
  • the cams 8 In formwork position, the cams 8 are in position. abutment with section B according to abutment portion 22.
  • the rotation R of the inclination rod 7 allows the inclination of the lower part of the support support 51, the upper part of the support support 51 being rotatably mounted relative to the B part thanks to the pivot rod 6.
  • the rotation of the cam 8 allows the tilt rod 7 to be closer to the formwork side of the panel B.
  • the support support 51 can then incline an angle of inclination with respect to the formwork front face AV as shown in FIG. figure 6 , the lower part of the support support 51 moving towards the front formwork AV. Since the guide aperture 52 of the support 51 extends vertically, the inclination of the support 51 has no disadvantage for the spacer rod 1, the sliding guide opening 52 vertically around the spacer rod 1.
  • the tilt rod 7 comprises in this example two cams 8 but it goes without saying that it could include only one or more cams 8.
  • the displacement means are adapted to incline the support support 51 relative to the front panel formwork AV of the B board but it goes without saying that they could also be adapted to move the support support 51 parallel to the front panel formwork AV of the form B.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Claims (10)

  1. Schalwand (B), umfassend eine vordere Verschalungsfläche (AV), in der mindestens eine Querstrebenöffnung (2) ausgebildet ist, und eine hintere Fläche (AR), auf der eine Führungsvorrichtung (5) für eine Querstrebenstange (1) durch die Querstrebenöffnung (2) montiert ist, wobei die Führungsvorrichtung (5) einen Stützträger (51) umfasst, der dazu vorgesehen ist, mit einer Befestigungsmutter (3) in Kontakt zu sein, die die Position der Querstrebenstange (1) in der Querstrebenöffnung (2) verriegelt, wobei die Schalwand dadurch gekennzeichnet ist, dass die Führungsvorrichtung (5) Mittel zum Verschieben des Stützträgers (51) in Bezug zur vorderen Verschalungsfläche (AV) der Schalwand (B) umfasst.
  2. Schalwand nach Anspruch 1, bei der die Verschiebemittel derart vorgesehen sind, dass sie den Stützträger (51) verschieben zwischen:
    - einer ersten Verriegelungsposition, in der sich der Stützträger parallel zur vorderen Verschalungsfläche (AV) der Schalwand (B) und in einem vorbestimmten Verriegelungsabstand zur vorderen Verschalungsfläche erstreckt, und
    - einer zweiten Freigabeposition, in der sich der Stützträger (51) zumindest teilweise in einem Freigabeabstand kleiner als der Verriegelungsabstand erstreckt.
  3. Schalwand nach einem der Ansprüche 1 bis 2, bei der die Verschiebemittel dazu vorgesehen sind, den Stützträger (51) in Bezug zur vorderen Verschalungsfläche (AV) der Schalwand (B) zu neigen.
  4. Schalwand nach einem der Ansprüche 1 bis 3, bei der die Verschiebemittel dazu vorgesehen sind, den Stützträger (51) parallel zur vorderen Verschalungsfläche (AV) der Schalwand (B) zu verschieben.
  5. Schalwand nach einem der Ansprüche 1 bis 4, bei der der Stützträger (51) in Form einer ebenen Platte vorhanden ist.
  6. Schalwand nach einem der Ansprüche 1 bis 5, bei der der Stützträger (51) eine Führungsöffnung (52) für eine Querstrebenstange (1) umfasst.
  7. Schalwand nach einem der Ansprüche 1 bis 6, bei der die Verschiebemittel eine Schwenkstange (6) umfassen, die geeignet ist, den Stützträger (51) In Bezug zur vorderen Verschalungsfläche (AV) zu schwenken.
  8. Schalwand nach einem der Ansprüche 1 bis 7, bei der die Verschiebemittel eine Neigungsstange (7) umfassen, die in Bezug zum Stützträger (51) drehbar montiert ist, wobei die Neigungsstange (7) mindestens eine Nocke (8) umfasst, deren Umfangsfläche (81) derart vorgesehen ist, dass sie auf einem Anschlagteil (22) der Schalwand (B) zur Auflage gelangt.
  9. Verfahren Herausziehen einer Querstrebenstange (1), die zwischen zwei gegenüber liegenden Schalwänden (B) montiert ist, wobei mindestens eine der Schalwände (B) eine Querstrebenöffnung (2) und eine Führungsöffnung (5) umfasst, in der die Querstrebenstange (1) durch die Querstrebenöffnung (2) hindurch montiert ist, wobei die Führungsvorrichtung (5) einen Stützträger (51) umfasst, auf dem eine Befestigungsmutter (3) vorgesehen ist, die die Position der Querstrebenstange (1) in der Querstrebenöffnung (2) verriegelt, wobei bei dem Verfahren:
    - der Stützträger (51) in Bezug zur vorderen Verschalungsfläche (AV) der Schalwand (B) derart verschoben wird, dass der Stützträger (51) von der Befestigungsmutter (3) entfernt wird; und
    - die Querstrebenstange (1) herausgezogen wird.
  10. Verfahren nach Anspruch 9, bei dem der Stützträger (51) in Bezug zur vorderen Verschalungsfläche (AV) der Schalwand (B) derart geneigt wird, dass der Stützträger (51) von der Befestigungsmutter (3) entfernt wird.
EP20120008223 2011-12-16 2012-12-10 Schalwand, die eine Führungsvorrichtung für eine Verstrebungsstange umfasst Active EP2604775B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1161743A FR2984385B1 (fr) 2011-12-16 2011-12-16 Banche de coffrage comportant un dispositif de guidage d'une tige d'entretoise

Publications (2)

Publication Number Publication Date
EP2604775A1 EP2604775A1 (de) 2013-06-19
EP2604775B1 true EP2604775B1 (de) 2015-02-11

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EP20120008223 Active EP2604775B1 (de) 2011-12-16 2012-12-10 Schalwand, die eine Führungsvorrichtung für eine Verstrebungsstange umfasst

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EP (1) EP2604775B1 (de)
FR (1) FR2984385B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3035905B1 (fr) * 2015-05-07 2018-07-13 Outinord St Amand Banche et coffrage contenant une telle banche
FR3080132B1 (fr) * 2018-04-17 2020-05-01 Sateco Banche de coffrage comportant un dispositif de guidage d'une tige d'entretoise

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751358B3 (fr) * 1996-07-19 1998-09-18 Outinord St Amand Dispositif d'entretoisement de panneaux coffrants, de type reglable
DE102006023062A1 (de) * 2006-05-10 2007-11-15 Robusta-Gaukel Gmbh & Co. Kg Spannvorrichtung für Ankerstäbe von Betonschalungen
FR2944329A1 (fr) * 2009-04-10 2010-10-15 Sateco Sa Dispositif d'assemblage destine a cooperer avec une tige filetee, entretoise et dispositif de moulage de beton
DE102010003017A1 (de) * 2010-03-18 2011-09-22 Peri Gmbh Ankermutter und Verfahren zum Ankersetzen und Ankerlösen

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Publication number Publication date
EP2604775A1 (de) 2013-06-19
FR2984385B1 (fr) 2014-05-23
FR2984385A1 (fr) 2013-06-21

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