EP3561199A1 - Élément de raccordement pour coffrages et procédé de raccordement du coffrage - Google Patents

Élément de raccordement pour coffrages et procédé de raccordement du coffrage Download PDF

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Publication number
EP3561199A1
EP3561199A1 EP19153661.4A EP19153661A EP3561199A1 EP 3561199 A1 EP3561199 A1 EP 3561199A1 EP 19153661 A EP19153661 A EP 19153661A EP 3561199 A1 EP3561199 A1 EP 3561199A1
Authority
EP
European Patent Office
Prior art keywords
rod
formwork
connecting element
bar
elements
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.)
Pending
Application number
EP19153661.4A
Other languages
German (de)
English (en)
Inventor
Georg GRZONDZIEL
Tobias Streit
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.)
Huennebeck Deutschland GmbH
Original Assignee
Huennebeck 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 Huennebeck GmbH filed Critical Huennebeck GmbH
Publication of EP3561199A1 publication Critical patent/EP3561199A1/fr
Pending 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements

Definitions

  • the invention relates to a method for connecting formwork elements of a formwork with a connecting element, wherein the formwork is provided for a concrete sheathing.
  • the invention also relates to a connecting element for carrying out the method.
  • Formwork is formed by a plurality of formwork elements.
  • Each formwork element comprises a formwork panel.
  • a formwork panel may for example consist of wood or plastic.
  • a formwork element includes as protection for the formwork panel a frame that can be made of steel.
  • On the back of a formwork panel usually consisting of metal supporting elements such as longitudinal and transverse beams are attached, which provide the required mechanical stability.
  • a formwork panel may be attached to the frame and support members by nails, screws or rivets.
  • Formwork elements comprising a formwork panel and a frame for the formwork panel are known from the documents DE 02848154 A1 such as DE 102004050564 A1 known.
  • Formwork consist of a plurality of formwork elements which are fastened together by fasteners. From the pamphlets DE 35 17 307 A1 such as DE 10 2012 214 396 A1 are known fasteners for such attachment of adjacent formwork elements. These fasteners comprise two jaws that can be tensioned with a tensioning mechanism. The jaws are sufficient for connection into lateral grooves of two adjacent frame members. Such fasteners can connect two formwork very reliable. Due to the clamping mechanism, however, these are technically relatively expensive to produce. The bracing also takes a relatively long time.
  • each wall formwork For the production of a wall, the two sides of a wall to be produced by wall formworks are limited. The front of each wall formwork then adjoins the concrete with its formwork.
  • Opposite wall formwork according to the invention are generally held by a plurality of anchor systems according to the invention.
  • the anchor rods of the anchor systems are inserted through openings in the wall formworks and fastened at their ends to the respective formwork skin supporting elements by means of locking devices so that at least the force acting on the anchor rods during concreting tensile force is absorbed.
  • These openings passing through the wall formwork are also called anchor rod bores.
  • Each wall formwork can be formed from a plurality of wall formwork elements, which are fixedly connected to one another by connecting elements.
  • the length and width of the box shape is usually much larger than the height of the side walls of the box shape.
  • adjacent formwork elements of wall or ceiling formwork to be able to be firmly connected to each other in a technically simple manner.
  • a method comprises for achieving the object the features of the main claim.
  • the object is achieved by a connecting element which comprises the features of the independent claim.
  • Another claim comprises a system with two shuttering elements and the connecting element.
  • each formwork element a formwork skin and one on the formwork skin attached, consisting of metal frames.
  • the formwork skin can be z. B. by rivets, nails or screws attached to the frame.
  • each formwork element comprises further supporting elements made of metal.
  • Each frame has a groove. Such a groove is located on the inside of each frame. Openings are present in the groove base, which pass through the frame.
  • a connecting element comprises a first rod and a second rod connected to the first rod.
  • the second and optionally the third rod are initially from the first rod in the same direction from the side and preferably perpendicular.
  • the second rod forms, together with a portion of the first rod, a type U which serves as a clamp for a firm connection of two formwork elements.
  • the optionally provided third bar resembles a hook. This then serves together with the first rod also as a terminal for a firm connection of two formwork elements.
  • first and the second formwork element are adjacently arranged such that an opening of the first formwork element adjoins an opening of the second formwork element. It can then be pushed through a rod through these two openings.
  • a U-like shape in the context of the present invention is when there are two interconnected rod areas, one of which can be pushed through said openings, then by final pivoting the two bar areas on the two frames laterally tight and the two As a result, frames are firmly connected to each other.
  • the connecting element is subsequently pivoted so that the two frames and thus the two formwork elements are firmly connected to each other by the first and second bar.
  • a third rod which is configured as a clamp
  • the two frames are also connected by the pivoting by the first and third rod.
  • the bar areas serving as a clamp exert a pressure on the two frames in the firmly connected state.
  • the corresponding rod areas are therefore preferably pressed apart somewhat elastically by the pivoting, so that the two frames are then pressed and therefore held together particularly stably.
  • the connecting element is preferably constructed so that the frames of the two shuttering elements are first fixedly connected to each other by the pivoting by the first and second rod and in addition thereto by the first and third rod.
  • the amount of force that can be spent on joining can be kept so low. This is especially true in the event that the corresponding rod areas are pressed apart by the pivoting slightly elastic.
  • a connecting element provided for carrying out the method comprises a first rod and a second rod connected to the first rod.
  • a third bar is available.
  • the second rod together with a portion of the first rod forms a kind U and the optional third rod forms a hook.
  • the second and third bars are meant portions of the connecting element which are rod-shaped and laterally protrude from an area which is rod-shaped and is therefore called the first bar.
  • the two frames can not be joined together sufficiently stably, they are additionally connected to one another by connecting elements known from the prior art which comprise two claws and a clamping mechanism for the claws.
  • the two jaws are sufficient for a connection in the grooves of the two frames and are clamped for a firm connection with the clamping mechanism.
  • the claws then exert a pressure on the two frames, thereby further improving the frames firmly held together become.
  • This design ensures a sufficiently strong cohesion even at very high loads. Nevertheless, the assembly effort and the manufacturing cost of the fasteners is significantly lower compared to the case that only fasteners are used, comprising two jaws and a clamping mechanism for the jaws.
  • the groove on a slope which acts as a ramp for the second rod during pivoting, to connect with little effort.
  • the first rod has a bend near one end.
  • the bend divides the first bar into a straight long section and a straight short section.
  • the rectilinear long portion acts as a lever to pivot the connector for a low effort connection. Therefore, the long portion of the first rod is advantageously more than twice as long, preferably more than four times as long, more preferably more than six times as long as the short portion of the first rod. The rectilinear sections thus reduce the production effort and are therefore not absolutely necessary in order to connect properly.
  • the short portion of the first rod preferably includes an angle of 120 ° to 160 ° with the long portion. This avoids that the connecting element protrudes in the assembled state excessively far from the frame.
  • the second rod is preferably attached, preferably welded, in order to produce with little technical effort.
  • the second rod is advantageously mounted adjacent to the bend of the first rod, so that the attached end of the second rod has a greater distance from the end of the first rod than the bend, in order to be able to fasten firmly.
  • the subsequent embodiments contribute to the fact that with little effort and / or with little technical manufacturing effort can be properly connected firmly.
  • the portion of the first rod that is part of the U-shape advantageously includes an angle with another portion of the first rod that is smaller than an angle enclosed by the other portion of the first rod and a portion of the third rod ,
  • the first rod is advantageously a round rod
  • the second rod advantageously has one or two flattened sides and, moreover, is rounded in cross section and / or the third rod is advantageously a round rod.
  • the second rod and / or the third rod are advantageously divided into a long section and a comparatively short section.
  • the sections are separated by a bend from each other and run advantageous for manufacturing reasons straight.
  • the long portion of the second rod is attached to the first rod and / or the short portion of the third rod is attached to the first rod.
  • the connecting element is preferably made entirely of steel.
  • the invention also relates to a system comprising a connecting element according to the invention and two formwork elements.
  • Each formwork element comprises a formwork skin and attached to the formwork, existing metal frame.
  • Each frame has a groove and openings in the groove bottom.
  • the two formwork elements can be firmly connected to each other by the connecting element in such a way that the two formwork elements are firmly connected to one another by the first and second rod and on the other hand by the first and third bar.
  • the first bar at the end of a transverse pin, which is not provided with a clamp.
  • a transverse pin Through this cross pin end pieces of sleeves, as these in the German patent application 102018205384.7 be turned out of hardened concrete.
  • the connecting element is used in this embodiment, then as a tool in the context of dismantling a wall formwork.
  • the FIG. 1 shows a connecting element 1, which consists entirely of steel.
  • the connecting element 1 comprises a metal rod 2, which is a round rod and bent near one end 3, that has a bend 4.
  • the bend 4 divides the first round bar 2 into two rectilinear sections, one section being a long section 5 which is much longer than the other short section 6.
  • the short section 6 has the end 3.
  • the long section 5 of the first round bar 2 has an end with a through hole 7.
  • the hole 7 is used in particular for receiving a bolt, which then represents a transverse bolt, with the aid of an end piece of a sleeve can be unscrewed from a finished wall.
  • the short section 6 of the first round bar 2 includes with the long section 5 of the first round bar 2 due to the bend 4 an angle ⁇ 1 , which is between 120 ° and 160 ° and may be for example 140 °.
  • a second steel rod 8 made of steel is welded, adjacent to the bend 4, so that the welded end 9 of the welded second rod 8 has a greater distance from the end 3 of the first round rod 2 than the bend 4.
  • the welded second rod 8 comprises a right angle bend 10 which also divides the second rod 8 into a long rectilinear portion 11 and a comparatively short rectilinear portion 12.
  • the short straight section 12 of the welded-on second rod 8 runs parallel to the short section 6 of the first round rod 2.
  • the second rod 8, together with the short section 6 of the first round rod 2 forms a U-shape from the weld 9 towards the end 3.
  • the long rectilinear portion 11 forms the bottom of the U-shape. Through the two sections 12 and 6, the legs of the U-shape are provided.
  • a third bar 13 is welded, which is also a round rod, that has a circular cross-section.
  • the welded third bar 13 is bent at right angles. Its bend 14 divides the welded third bar 13 into a short straight section 15 and a long straight section 16.
  • the short straight section 15 of the welded third bar 13 is parallel to the long section 11 of the welded second bar 8.
  • the short straight section 15 of the welded third bar 13 is the same length as the long straight section 11 of the welded second bar 8.
  • the long straight section 16 of the welded third bar 13 and the short straight section 12 of the welded second bar 8 are in a common Level.
  • the rod 2 runs parallel to this plane.
  • the weld of the welded third bar 13 is located closer to the bend 4 of the first round bar 2 than in the hole 7.
  • the welded second rod 8 has two flattened sides 17. Incidentally, its cross section is rounded, as can be seen from the FIG. 2 it can be seen that shows this cross section.
  • the FIG. 3 shows a side view of the connecting element 1.
  • the short straight section 6 of the first round bar 2 includes with the long straight section 5 of the first round bar 2 an angle ⁇ 1 , which is smaller than the angle ⁇ 2 , of the long straight section 5 of seen from the bore 7 and the long rectilinear portion 16 of the welded third bar 13 is included. Further clarifies the FIG. 3 in that the long straight section 16 of the welded third bar 13 is longer than the short straight section 6 of the first round bar 2.
  • FIG. 4 shows a section through a formwork element with a made of wood or plastic formwork 18 and made of steel frame members 19.
  • Each frame member comprises a groove 20 on the frame inside. Through the groove bottom 21 at regular intervals openings 22 pass through, which are drilled and therefore circular.
  • Such a bore 22 is shown only in the left frame member 19. In the connected state is then opposite to the right frame member 19 such a bore 22. Limits two such frame members 19 of two formwork elements to each other, then there is a passage through the two then adjacent holes 22, as shown in the FIG. 5 is shown in section.
  • the welded second rod 8 is guided through the two holes 22 until the long straight portion 11 of the welded second rod 8 has been pushed through the two holes 22 in the maximum possible way is.
  • the long rectilinear portion 11 forms the bottom of the U-like shape.
  • the two legs of the U-shape are then laterally of the two holes 22.
  • the round rod 5 is pivoted about the straight long portion 11 of the first welded rod 8 around until both short sections 12 and 16 of the two welded rods 8 and 13 laterally abut the one frame element 19.
  • the short section 12 of the welded second rod 8 laterally abut the one frame element and at the same time the opposite U-leg, which is provided by the first round rod 8.
  • the short portion 16 of the welded third bar 13 to the frame member as in FIG. 6 abut shown in a plan.
  • the two frame members 19 are reliably and stably connected by the connecting element 1 together.
  • connection means with clamping mechanisms as these are known from the prior art, additionally be used.
  • connection means with clamping mechanisms are used in the exclusively conventional connection means with clamping mechanisms to connect two frame elements sufficiently stable together.
  • FIG. 7 shows the joining of two frames 19 of two formwork elements 19.
  • the second bar 8 has already been completely, so pushed through in a maximum manner by adjacent openings 22 and is located on a now serving as a ramp slope 23 of the groove 20 at. If, for example, the long section 5 of the first round bar 2 is then pivoted manually in the direction of the arrow 24, the short section 12 of the second bar 8 slides up the slope 23 and is thereby slightly bent away from the adjacent frame 19 and thus elastically bent outwards , In this way, first connects the second rod 8 together with the first rod 2, the two frames 19 firmly together. Only then does a further pivoting in the direction of arrow 24, that also the second rod 13 together with the first rod 2 as in the FIG. 6 shown the two frame 19 connects to each other. The angular position and dimensioning of the second rod 13 ensures that this second connection requires no excessive effort.
  • the slope 23 preferably does not reach the base 21 of the groove 20 is sufficient to act as a ramp for the short portion 12 of the second rod 8 so that the slope 23 may have a favorable angle, without the groove 20 thereby excessively broaden. Seen from the groove base 21, the side walls therefore initially extend perpendicularly and open into the bevel 23.
  • the flattened sides 17 of the second rod 8 facilitate the pivoting of the connecting element. 1
  • the third bar 13 is not necessarily required for a firm connection and can therefore be omitted. However, the third bar 13 is advantageous if it is to be connected in a particularly stable manner. Instead of the third rod, a short protruding bolt 25 as in the FIG. 8 be shown, which serves as a stop. By the bolt 25 pivoting is suitably limited in the context of a connection and thereby advantageously simplifies handling.
  • FIG. 8 further shows a bolt 26 inserted through the hole 7, which protrudes on both sides of the first bar 2 and is fixedly connected to the first bar 2, for example welded.
  • FIG. 9 shows a in the German patent application 102018205384.7 described end piece 27 of a sleeve.
  • This sleeve has an inner contour with two bulges 28.
  • there is a wavy outboard step 29 which causes unscrewing of hardened concrete.
  • a waveform is not absolutely necessary for unscrewing. It is sufficient a slope at such a stage to be able to unscrew.
  • Further details are given in the German patent application 102018205384.7 described. The disclosure of this German patent application, we include.
  • the bolt 26 is dimensioned and arranged so that its two ends can be pushed into the bulges 28. By subsequently rotating the first rod 2 about its longitudinal axis, such an end piece 27 can be unscrewed from a manufactured wall.
  • FIG. 10 shows a preferably made of plastic sleeve 30, which has a preferably made of plastic pipe 31.
  • plastic pipe 31 Into the ends of the tube 31 are the end pieces 27 inserted and held clamped.
  • An anchor rod is pushed through anchor rod holes in opposing wall formworks and through the sleeve 30, which is then located between the two wall formworks. Locking devices are attached to the then out of the wall formwork outwardly projecting ends of the anchor rod.
  • the sleeve 30 After making a wall and after dismantling the wall formwork, the sleeve 30 is in the prepared wall. As described, the end pieces 27 of the sleeve 30 are finally turned out of the wall.
EP19153661.4A 2018-04-24 2019-01-25 Élément de raccordement pour coffrages et procédé de raccordement du coffrage Pending EP3561199A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018206238.2A DE102018206238A1 (de) 2018-04-24 2018-04-24 Verbindungselement für Schalungen

Publications (1)

Publication Number Publication Date
EP3561199A1 true EP3561199A1 (fr) 2019-10-30

Family

ID=65234471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19153661.4A Pending EP3561199A1 (fr) 2018-04-24 2019-01-25 Élément de raccordement pour coffrages et procédé de raccordement du coffrage

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EP (1) EP3561199A1 (fr)
DE (1) DE102018206238A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019204713A1 (de) * 2019-04-03 2020-10-08 Hünnebeck GmbH Schalungssystem für die Herstellung von Betonwänden

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US953383A (en) * 1909-03-15 1910-03-29 Joseph W Holman Wall-mold.
US2502849A (en) * 1946-04-27 1950-04-04 Economy Forms Corp Clamp device
DE2848154A1 (de) 1978-11-07 1980-05-14 Gerhard Dingler Stahlprofil fuer schaltafeln
DE3517307A1 (de) 1985-05-14 1986-11-20 Hünnebeck GmbH, 4030 Ratingen Vorrichtung zum zusammendruecken und verspannen benachbarter schalungselemente
DE29606960U1 (de) * 1996-04-17 1996-08-14 Lee Wen Yuan Aus mehreren Elementen bestehende Schalungsanordnung für Betonwände
EP0738808A1 (fr) * 1995-04-21 1996-10-23 Yoshiyuki Hayakawa Dispositif d'assemblage pour coffrages de béton
DE102004050564A1 (de) 2004-10-15 2006-04-27 Hünnebeck GmbH Beschichtete Schaltafel
EP2037057A2 (fr) 2007-09-11 2009-03-18 Hühnebeck Group Gmbh Eléments de coffrage pour plafonds et procédé
DE102012214396A1 (de) 2012-08-13 2014-02-13 Harsco Infrastructure Services Gmbh Wandschalung mit Verbindungseinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1840169A (en) * 1930-01-24 1932-01-05 Circular Concrete Container Co Combination clamp and drift pin
US3132405A (en) * 1962-10-12 1964-05-12 Economy Forms Corp Structural lock
US3473578A (en) * 1967-11-20 1969-10-21 John C Mcardle Form tie breaker tool
DE3601006A1 (de) * 1986-01-15 1987-07-16 Peri Werk Schwoerer Kg Artur Anordnung zum verbinden zweier schalelemente
DE102018205384A1 (de) 2018-04-10 2019-10-10 Hünnebeck GmbH Montage einer Wandschalung, Ankersystem und Hülse

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US953383A (en) * 1909-03-15 1910-03-29 Joseph W Holman Wall-mold.
US2502849A (en) * 1946-04-27 1950-04-04 Economy Forms Corp Clamp device
DE2848154A1 (de) 1978-11-07 1980-05-14 Gerhard Dingler Stahlprofil fuer schaltafeln
DE3517307A1 (de) 1985-05-14 1986-11-20 Hünnebeck GmbH, 4030 Ratingen Vorrichtung zum zusammendruecken und verspannen benachbarter schalungselemente
EP0738808A1 (fr) * 1995-04-21 1996-10-23 Yoshiyuki Hayakawa Dispositif d'assemblage pour coffrages de béton
DE29606960U1 (de) * 1996-04-17 1996-08-14 Lee Wen Yuan Aus mehreren Elementen bestehende Schalungsanordnung für Betonwände
DE102004050564A1 (de) 2004-10-15 2006-04-27 Hünnebeck GmbH Beschichtete Schaltafel
EP2037057A2 (fr) 2007-09-11 2009-03-18 Hühnebeck Group Gmbh Eléments de coffrage pour plafonds et procédé
DE102012214396A1 (de) 2012-08-13 2014-02-13 Harsco Infrastructure Services Gmbh Wandschalung mit Verbindungseinrichtung

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