EP2157260B1 - Coffrage doté d'un dispositif d'ancrage arrière - Google Patents

Coffrage doté d'un dispositif d'ancrage arrière Download PDF

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Publication number
EP2157260B1
EP2157260B1 EP08016903.0A EP08016903A EP2157260B1 EP 2157260 B1 EP2157260 B1 EP 2157260B1 EP 08016903 A EP08016903 A EP 08016903A EP 2157260 B1 EP2157260 B1 EP 2157260B1
Authority
EP
European Patent Office
Prior art keywords
formwork
anchoring
connection
wall
tie 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
EP08016903.0A
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German (de)
English (en)
Other versions
EP2157260A1 (fr
Inventor
Willibald Fischer
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.)
FWR Solutions GmbH
Original Assignee
FWR Solutions 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 FWR Solutions GmbH filed Critical FWR Solutions GmbH
Priority to EP08016903.0A priority Critical patent/EP2157260B1/fr
Publication of EP2157260A1 publication Critical patent/EP2157260A1/fr
Application granted granted Critical
Publication of EP2157260B1 publication Critical patent/EP2157260B1/fr
Active 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
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • 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
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/365—Stop-end shutterings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges
    • 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
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms

Definitions

  • the invention relates to a formwork for concrete construction of the type explained in the preamble of claim 1.
  • Lost formworks are used, either the outer contours of the concrete part or, as Stirnabschalung, successively limit concrete sections to be potted.
  • These lost formworks contain a formwork wall which must be fastened substantially perpendicularly to a base, for example a cleanliness layer or a reinforcement layer lying thereon, and held against the concreting pressure.
  • tie-down anchoring devices which are fastened with one of their free ends to the shuttering wall and with the other free end to the base and extend over the angle between shuttering wall and base.
  • WO 2005/103412 A1 From the WO 2005/103412 A1 is a formwork with a Formungswandung known, which is supported on one side by support feet against the concrete pressure. These support feet consist of plates in the form of right-angled triangles, of which one side of the catheter is fastened to the formwork wall by means of aligned openings in the formwork wall and in the support legs, and of which the other side of the catheter is fixed to the floor by means of a concrete stain or floor anchors.
  • JP11062019 discloses a formwork according to the preamble of claim 1.
  • the invention has for its object to provide a formwork that is easy and secure fastened via a back anchoring device.
  • a structurally simple screw connection preferably includes a thread arranged on the tension strut, a lock nut and a bearing.
  • the bearing is preferably designed as a plug bearing made of two spaced-apart rods, which are fastened to the shuttering wall. In this way it is possible to use the rods at the same time for stiffening a panel, which can be pierced by the tension strut and thus would otherwise be relatively less stable.
  • a panel is preferably made of expanded metal. If the bars of the plug-in bearing are in the form of longitudinal members of the formwork wall, that is used in the direction of extension substantially perpendicular to the base, a compensation for dimensional changes of the tension struts is created in a simple manner.
  • the lock nut is a clamping nut or sleeve with an integrated washer, as used in the form of DYWIDAG® nuts, in particular wing nuts, in the construction sector, and in particular for the production of concrete parts, on a large scale and are present on every construction site.
  • connection via the tension strut via a hook connection, so that the tension strut can be easily hung in the corresponding part, so either the formwork wall or the base.
  • the tie rod is hung on a bracket, which provides an improved anchorage in the formwork wall or the base.
  • the bracket preferably includes a first and a second anchoring area and a connecting area arranged therebetween, which creates the connection with the tension strut. In this connection area, the turn provided with a hook tie bar is simply hung.
  • Tie rods for use in the formwork according to the invention comprise a thread at one of their free ends and a hook at their other free end.
  • the anchoring is particularly stable when the pad is designed as a reinforcing layer, since there, for example, the hook or the bracket can be hung easily.
  • Fig. 1 shows a highly schematic representation of a formwork according to the invention 1 in side view for the preparation of a concrete part, wherein the formwork 1 is formed in the illustrated embodiment for producing a bottom plate.
  • the formwork 1 stands on a base, which in the illustrated embodiment comprises a conventional layer of cleanliness 2 and an overlying layer of reinforcement 3, which contains a plurality of cross bars 4 crossing each other and longitudinal bars 5, which are shown in several layers, four layers, one above the other.
  • the reinforcement layer 3 can also be formed by already prefabricated grid mats or the like.
  • the formwork 1 is designed as a permanent formwork, ie it remains in the finished embodiment and used as Häfugenschalung, ie it separates successively pouring concrete pouring from each other, in the illustrated embodiment, first a concreting 7 on the right side of the formwork wall 6 in Fig. 1 and then a concreting 8 on the left side of the shuttering wall 6 in Fig. 1 is created.
  • the formwork wall 6 contains in the illustrated embodiment, a panel 9, which preferably consists of a pierceable by hand with a suitable article material and in particular is an expanded metal sheet.
  • a panel 9 which preferably consists of a pierceable by hand with a suitable article material and in particular is an expanded metal sheet.
  • stiffening carrier 10 for stiffening the relatively bendable sheet material are on the panel 9 stiffening carrier 10 in the form of cross beams 11 and Longitudinal beams 12 attached.
  • the cross member 11 consist of the usual grid or rod carriers with triangular cross section and extend transversely to the plane of the drawing Fig. 1 and parallel to the pad. These cross members 11 are mounted directly on the panel 9, preferably welded to this.
  • At least some of the side members 12 are, in particular Fig. 2 shows, formed as parallel bars 12a and 12b, which extend at a distance from each other substantially perpendicular to the base on the shuttering panel 9 and are held by the cross beams 11 at a distance from the shuttering board 9.
  • the number of longitudinal members 12 and the number of cross members 11 is selected in view of strength requirements.
  • the formwork wall 6 is installed in the general formwork such that the longitudinal members 12 are arranged on that side which faces the last concrete section 8 to be concreted.
  • the Formungswandung 6 is in the in Fig. 1 shown, held substantially perpendicular orientation to the reinforcing layer 3 by a remindverank ceremoniess liked containing traction elements in the form of tie rods 13 (tie rods).
  • tie rods 13 tie rods 13
  • a plurality of tie rods 13 are shown, but their number can be selected depending on the expected concreting pressure.
  • the tie rods 13 are installed so that they bridge the angle between the Schalungswandung 6 and the base 3, 2 at the first concreted concrete section 7 facing side, in a vertically installed shuttering wall 6 preferably at an angle between 30 ° and 60 °, in particular 45 °.
  • the tension strut 13 is anchored at one end, preferably on the shuttering wall 6, via a screw connection 14 and at the other end, preferably on the reinforcement 3, via a hook connection 15.
  • the thread 16 may be incorporated directly into the tension strut 13, but may also be formed by a welded threaded rod.
  • a tension rod or the threaded portion of a tension rod is used for the tie rod 13, as it is available on the market under the name DYWIDAG® tension rod and is widely used in concrete construction.
  • the tension strut 13 is preferably bent, but the hook element 17 can also be welded or otherwise fastened.
  • the screw 14 further includes a lock nut 18, which is preferably designed as a clamping nut with integrated washer 19 and wings 20 for a manual screwing.
  • a clamping screw is preferably used, which is available on the market under the name DYWIDAG® screw and widely used in concrete construction.
  • the hook connection 15 can either, as Fig. 1 shows only consist of the hook member 17 which is hooked into the reinforcement layer 3, but preferably a bracket 21 is used as an intermediate element, as this even greater tensile forces can be absorbed.
  • the bracket 21 includes in the illustrated embodiment, a substantially wave-shaped and bent in a plane rod through which two hook-like anchoring regions 22 are formed (see also Fig. 6 ), between which a loop-like connection region 23 is arranged. With the anchoring regions 22, the bracket 21 is inserted into the reinforcement layer such that the anchoring regions 22 engage under suitable longitudinal rods 5 and preferably pass between superimposed transverse rods 4 with their free ends. Also, the connecting portion 23 passes between superimposed transverse bars 4 and points in the direction of the shuttering wall 6.
  • the most diverse anchoring positions of the bracket 21 are possible, such.
  • the tension strut 13 is passed through an aligned in the space between the rods 12 opening in the shuttering panel 9, wherein the opening is preferably created by piercing the shuttering panel 9 by means of the tie rod 13.
  • the tie rods 13 are inserted so far until their free threaded ends between the longitudinal bars 12a, 12b pass through.
  • the longitudinal bars 12a, 12b have a distance from each other which is greater than or equal to the diameter of the threaded portion 16 but smaller than the diameter of the flange 19 and the integrated or inserted washer of the lock nut 18. Then, the hook member 17 in the connecting portion 23 of the bracket 21 (FIG. Fig. 6 ) or suspended directly in a transverse bar of the reinforcement layer 3 ( Fig. 1 ).
  • the lock nut 18 is screwed onto the thread 16 and the tension strut 13 tensioned on train, ie the nut 18 is screwed so far until the hook member 17 has been tightened around the adjacent cross bar 4 or the bracket 21 so was pulled far in the direction of Schal formwandung 6, that the free ends of the anchoring area can no longer escape from the reinforcement layer 3.
  • the first concreting section 7 can be created.
  • the nuts 18 can be removed for further use, while the tie rods 13 and the shuttering wall 6 remain as lost in the component.
  • FIGS. 7 to 11 is a further embodiment of a bracket 121 can be seen, which is analogous to the bracket 21 preferably consists of a wavy curved rod.
  • the bracket 121 includes at least one anchoring portion 22 in the form of a hook and a connecting portion 23 in the form of a loop, wherein in the illustrated embodiment, two anchoring regions 22 are arranged on both sides of the connecting portion 23.
  • the anchoring areas 22 and the connection area 23 lie in one plane.
  • At least part of the regions between the hook region 22 and the connecting region 23, ie the loop provided there, is formed as an abutment 124 on the yoke 121. This anvil 124 is replaced by an angled arrangement of the loop to the plane E ( Fig.
  • the angle ⁇ between the anvil 124 and the plane E can be in the range between 60 ° and 120 °, which is sufficient for most applications.
  • it can for example be reduced in thinner reinforcing bars, the angle and increased with stronger reinforcing bars.
  • the bracket 121 is anchored in a suitable manner in the pad that the connecting portion 23 is exposed for hooking the hook member 17 of the tension member 13 and the anchoring portions 22 are in the pad that by pulling the tension member 13 in the direction Z the bracket 121 is not released from the pad.
  • the bracket 12 in a reinforcing layer 3 with intersecting and alternately superimposed transverse bars 4 and 5 longitudinal bars of the bracket 121 with its anchoring areas 22 under a unit of two transverse bars 4a, 4b and an intervening, crossing longitudinal bar 5a pushed so in that the transverse rods 4a, 4b are at an angle ⁇ and the longitudinal rod 5a passes through the loop forming the anvil 124.
  • the abutment 124 does not touch the transverse bar 4a, 4b, but is slightly behind. Now, if a train Z exerted, the bracket 121 strives to tilt about an axis extending in the direction of the crossbars 4, whereby the abutment 121 presses on the longitudinal bar 5a and pushes it down, while the lower cross bar 4b, the direct abuts the connecting portion 23 is lifted by the train. This ensures that the longitudinal bars 5a and the cross bars 4b, 4a are compressed and thus a stable tension connection is achieved without the transverse bar 4a can be pushed away.
  • the tension strut can be attached to the screw in a suitable pad and the other end are connected by means of the described hook connection with the formwork wall.
  • a hook connection and other connection options are used;
  • the second free end of the tension strut can be screwed, according to an embodiment which does not form part of the invention.
  • other lock nuts or locking sleeves including those that can be screwed by means of tools, can be used.
  • the parallel rods pierced plates, sleeves or the like. Can be used as a plug bearing.
  • the temple can also only one or more Anchoring and connecting areas have.
  • brackets for a rear anchorage in which the other ends of the tie rod is without screw and is attached in a conventional manner or to use in other arrangement cases in the construction sector, according to an embodiment which does not form part of the invention.
  • the counter bearing can also be arranged elsewhere on the bracket.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Claims (12)

  1. Coffrage (1) pour la construction en béton, comprenant une paroi de coffrage (6) pouvant être agencée sur une base de support (2, 3) et comprenant un dispositif d'ancrage arrière, qui est destiné à assurer un appui de soutien de la paroi de coffrage (6) sur la base de support (2, 3) et comprend au moins un contrefort de traction (13) pouvant être relié aussi bien à la paroi de coffrage (6) qu'à la base de support (2, 3), caractérisé en ce que le contrefort de traction (13) est pourvu d'un filetage (16) à une extrémité libre, et d'un élément de crochet (17) à l'autre extrémité libre, et peut, à une extrémité, être relié à la paroi de coffrage (6) ou respectivement à la base de support (2, 3) par l'intermédiaire d'une liaison vissée (14), et, à l'autre extrémité, être accroché dans la base de support (2, 3) ou respectivement à la paroi de coffrage (6).
  2. Coffrage selon la revendication 1, caractérisé en ce que la liaison vissée (14) comprend le filetage (16) agencé sur le contrefort de traction (13), un écrou de blocage de sécurité (18) et un palier de support (12, 19).
  3. Coffrage selon la revendication 1 ou la revendication 2, caractérisé en ce que la paroi de coffrage (6) comprend un panneau (9) qui est rigidifié au moyen de traverses et de longerons (11, 12), et qui est réalisé en un matériau pouvant être transpercé par le contrefort de traction (13), notamment du métal déployé.
  4. Coffrage selon l'une des revendications 1 à 3, caractérisé en ce que le contrefort de traction (13) peut être relié à la paroi de coffrage (6) ou à la base de support (2, 3), par l'intermédiaire d'une liaison par accrochage (15).
  5. Coffrage selon la revendication 4, caractérisé en ce que la liaison par accrochage (15) présente un étrier (21, 121) avec une zone d'ancrage (22) destinée à la fixation dans la base de support (2, 3) ou à la paroi de coffrage (6), et une zone de liaison (23) destinée à la fixation au contrefort de traction (13).
  6. Coffrage selon la revendication 5, caractérisé en ce que l'étrier (21, 121) présente une première et une deuxième zone d'ancrage (22) et, agencée entre celles-ci, une zone de liaison (23).
  7. Coffrage selon la revendication 5 ou la revendication 6, caractérisé en ce que la zone d'ancrage (22) est réalisée sous forme de crochet destiné à accrocher l'étrier (21, 121) dans un système d'armature (3).
  8. Coffrage selon l'une des revendications 5 à 7, caractérisé en ce que la zone de liaison (23) est réalisée sous forme de boucle destinée à l'accrochage d'un élément de crochet (17) relié au contrefort de traction (13).
  9. Coffrage selon l'une des revendications 5 à 8, caractérisé en ce que la zone de liaison et la zone d'ancrage (22, 23) sont situées dans le même plan (E).
  10. Coffrage selon l'une des revendications 5 à 9, caractérisé en ce que l'étrier (21, 121) comporte un contre-appui de support (124).
  11. Coffrage selon la revendication 10, caractérisé en ce que la zone de liaison et la zone d'ancrage (22, 23) sont situées dans le même plan (E), et le contre-appui de support (124) s'étend selon une angle (α) par rapport à ce plan (E).
  12. Coffrage selon l'une des revendications 5 à 11, caractérisé en ce que l'étrier (21, 121) est fabriqué à partir d'une barre cintrée de manière ondulée.
EP08016903.0A 2008-08-19 2008-09-25 Coffrage doté d'un dispositif d'ancrage arrière Active EP2157260B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08016903.0A EP2157260B1 (fr) 2008-08-19 2008-09-25 Coffrage doté d'un dispositif d'ancrage arrière

Applications Claiming Priority (2)

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EP08014727 2008-08-19
EP08016903.0A EP2157260B1 (fr) 2008-08-19 2008-09-25 Coffrage doté d'un dispositif d'ancrage arrière

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EP2157260A1 EP2157260A1 (fr) 2010-02-24
EP2157260B1 true EP2157260B1 (fr) 2017-05-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020109531B3 (de) 2020-04-06 2021-07-29 Max Frank GmbH & Co. Kommanditgesellschaft Schalungssystem
DE202017007465U1 (de) 2017-09-15 2021-09-28 Fwr Solutions Gmbh Verlorene Schalung für den Betonbau

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010005218U1 (de) * 2010-04-16 2010-06-24 Peca-Verbundtechnik Gmbh Schalungssystem
DE102013220854A1 (de) * 2013-10-15 2015-04-16 Fwr Solutions Gmbh Schalung für den Betonbau
DE102014017529A1 (de) 2014-11-26 2016-06-02 Fwr Solutions Gmbh Schalung für Arbeitsfuge mit rückbaubaren Teilen
DE102016217430B4 (de) 2016-09-13 2022-09-22 Fwr Solutions Gmbh Dehnfugenschalung
CN106884534A (zh) * 2017-02-28 2017-06-23 合迪科技江苏有限公司 斜撑底座安装系统及安装方法
BE1025235B1 (fr) * 2017-05-17 2018-12-18 Thomas Et Piron Home Système de protection pour la construction de bâtiment
DE102017216383A1 (de) 2017-09-15 2019-03-21 Fwr Solutions Gmbh Verlorene schalung für den betonbau
CN109629826B (zh) * 2019-02-02 2023-11-17 魏志光 现浇混凝土墙模板锁具
DE102020109530B3 (de) * 2020-04-06 2021-05-27 Max Frank GmbH & Co. Kommanditgesellschaft Schalungssystem
DE102021104831A1 (de) 2021-03-01 2022-09-01 Fwr Solutions Gmbh Dehnfugenschalung mit Spannvorrichtung
CN114411505A (zh) * 2021-12-23 2022-04-29 中国建筑土木建设有限公司 一种可调节式水稳模板支护装置

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3881681A (en) * 1973-08-22 1975-05-06 Daniel O Sumpter Form anchor
DE4141917C1 (fr) * 1991-12-18 1993-05-27 Peri Gmbh, 7912 Weissenhorn, De
JPH1162019A (ja) * 1997-08-27 1999-03-05 Tokyu Koken Co Ltd 天端兼用インサート金物及びプレキャスト鉄筋コンクリート造の施工法

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Publication number Priority date Publication date Assignee Title
DE29505448U1 (de) * 1995-03-30 1995-07-27 Construmat Ag, Hegnau-Volketswil Randschalungselement
GB0409216D0 (en) * 2004-04-24 2004-05-26 Metaform Ltd Multi purpose screed rail, formwork and joint protection mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881681A (en) * 1973-08-22 1975-05-06 Daniel O Sumpter Form anchor
DE4141917C1 (fr) * 1991-12-18 1993-05-27 Peri Gmbh, 7912 Weissenhorn, De
JPH1162019A (ja) * 1997-08-27 1999-03-05 Tokyu Koken Co Ltd 天端兼用インサート金物及びプレキャスト鉄筋コンクリート造の施工法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017007465U1 (de) 2017-09-15 2021-09-28 Fwr Solutions Gmbh Verlorene Schalung für den Betonbau
DE102020109531B3 (de) 2020-04-06 2021-07-29 Max Frank GmbH & Co. Kommanditgesellschaft Schalungssystem

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