WO1999025941A9 - Element de serrage pour element constitutif en beton,pour serrer des pieces d'assemblage contre le coffrage - Google Patents

Element de serrage pour element constitutif en beton,pour serrer des pieces d'assemblage contre le coffrage

Info

Publication number
WO1999025941A9
WO1999025941A9 PCT/EP1998/007317 EP9807317W WO9925941A9 WO 1999025941 A9 WO1999025941 A9 WO 1999025941A9 EP 9807317 W EP9807317 W EP 9807317W WO 9925941 A9 WO9925941 A9 WO 9925941A9
Authority
WO
WIPO (PCT)
Prior art keywords
clamping element
spring
reinforcement
connecting piece
formwork
Prior art date
Application number
PCT/EP1998/007317
Other languages
German (de)
English (en)
Other versions
WO1999025941A1 (fr
Inventor
Thomas Notarfrancesco
Martin Reuber
Original Assignee
Betomax Kunststoff Metall
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 Betomax Kunststoff Metall filed Critical Betomax Kunststoff Metall
Priority to DE19881633T priority Critical patent/DE19881633D2/de
Publication of WO1999025941A1 publication Critical patent/WO1999025941A1/fr
Publication of WO1999025941A9 publication Critical patent/WO1999025941A9/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • 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
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms
    • 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
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E04G21/1841—Means for positioning building parts or elements
    • E04G21/185—Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires

Definitions

  • the invention relates to a clamping element for pressing connectors, such as wall connection, anchor or hose connection elements to the formwork for a concrete component.
  • connectors When fastening reinforcement connections and other components, hereinafter referred to as connectors, there are currently only two options: first, to nail the connector to the formwork; this is the quickest and easiest way. Second, tie the connecting element to the reinforcement.
  • the first fastening option has the disadvantage of damage to the formwork. This problem does not exist with the second fastening option, but the reinforcement connection has no direct contact with the formwork, so that when
  • the object of the invention is to avoid the problems described in the introduction and to provide a device which eliminates these disadvantages, i. H. that the device holds the connector in place without substantial damage to the formwork.
  • a combination of at least one fastening means (for fastening to the reinforcement), at least one first support body (for supporting the device according to the invention, ie the clamping element, on the reinforcement), at least one second support body (for supporting the invention) Device on the connecting piece to be fixed to the formwork) and a spring element in other words, generally a spring-elastic means for producing a pretension (clamping tension) between the first and the second supporting body, which (spring element) in the installed state has a pressure force acting between the reinforcement and the formwork generated, easily holds the connector on the formwork inner surface and largely avoids backflow with concrete.
  • the formwork therefore remains undamaged and the clamping element according to the invention can also be used successfully with formwork consisting of metal plates, so-called steel formwork.
  • the thickness of the only relatively small concrete covering of the reinforcement ie the small spacing gap available between the reinforcement and the formwork, is sufficient, apart from the actual connecting piece, also to accommodate a clamp according to the invention. to enable miatas. It was namely recognized that the spring travel required to build a sufficient adhesive force only before attaching the formwork leads to the connection piece initially projecting further than the thickness of the intended concrete cover from the reinforcement. By attaching and the usual tensioning or supporting the formwork, a pressure force is generated between the connecting piece and the reinforcement, which leads to the compression spring being compressed or expanded until the connecting piece and the formwork gradually assume the desired distance and the desired position for the reinforcement.
  • a leaf spring proves to be particularly space-saving with regard to the available concrete cover; in particular it enables a one-piece design of the
  • the first support means at least one elongated rod, e.g. B. has at least one reinforcing bar section, this can be attached to the reinforcement in such a way, regardless of the spacing of the reinforcing bars of the reinforcement, in particular that the desired position of the connecting piece on the concrete surface to be produced can be maintained very precisely in the simplest way.
  • This advantage is also achieved with fasteners with rows of holes or the like.
  • the position between the connector and the clamping element can be done in any way.
  • the clamping element is advantageously fastened to the anchor bolt.
  • Fig. 1 to 36C show different embodiments of clamping elements according to the invention.
  • the clamping elements 10 can be made of plastic, sheet metal, spring steel, springs, spring steel pins or the like or
  • Each clamping element has a fastening means 11; 11A, 11B, such as clips, fastening clamps, tie rods or wires or other fastening means. These allow the clamping element 10 to be connected to one or more reinforcing bars 21 of the reinforcement of the concrete component to be produced.
  • First support body 12; 12A, 12B of the clamping element 10 support it against at least one reinforcing bar 21 of the concrete component to be produced.
  • At least one second support body 13; 13A, 13B supports the clamping element 10 against the connecting piece 23, 23A, ... and presses it against the formwork 22 for the concrete component (see FIGS. 1, 7B,
  • a spring element in the form of a compression or tension spring 14 is interposed between the first and second support bodies 12 and 13 and holds the first and second support bodies resiliently, at least in the installed state, under pressure (with respect to the formwork).
  • the assembly is carried out so that the clamping device 10 is attached to the reinforcing bars 21 of the concrete component to be produced with the at least one fastening means 11, for. B. by hanging, tying, screwing, welding and the like.
  • the clamping element 10 is supported by at least one support body 12 on the relevant, possibly a plurality of reinforcing bars.
  • the connecting piece 23, 23A,... To be pressed onto the formwork can, if desired, be fastened or fastened to the clamping element. Examples of this can be found in figures and are explained further below.
  • the reinforcement bars are usually connected to each other in a tensile and / or pressure-resistant manner.
  • spacers are usually provided so that the spring action of the clamping element is fully effective and is not lost in the reinforcement; however, if the reinforcement reacts resiliently, it can also be used to support the generation of contact pressure.
  • a one-piece stamped and bent leaf spring can combine all necessary device components of the clamping element in one piece and in one piece.
  • Fig. 2 shows the same embodiment in a view from the direction of the formwork.
  • Fig. 3 shows, as in the embodiment of Fig. 1
  • Dovetail-shaped, springy or non-springy Fastening means 25 can be provided for the connecting piece 23.
  • the available travel can be made particularly large by accommodating the connecting piece 23 in the zone determining the maximum travel.
  • large spring deflections and a correspondingly soft spring can also be achieved in those cases in which the spring cannot dip between the reinforcement bars of the reinforcement and / or the concrete coverage is relatively small, as is shown by way of example in FIG. 28A.
  • FIG. 4 shows how the anchor bolt 24 of an anchor rail 23B can be inserted, in particular clicked, into a recess 26A of the clamping element 10.
  • the clamping element which otherwise corresponds to the embodiment of FIG. 1, is only shown in part.
  • Fig. 5 shows the combination of a clamping element 10 with a hose connector 23C, as z. B. is applicable as a mouthpiece for connection with grouting hoses laid in concrete.
  • FIG. 6 shows the fastening of a connecting element 23 with a clamping element 10 by means of a rivet 27.
  • FIG. 7A shows a clamping means 10 similar to the exemplary embodiment according to FIG. 1 with a trapezoidal (instead of a curved) compression spring configuration.
  • FIG. 7B shows the same clamping element in the installed state.
  • the double support on the reinforcement (see also Fig. 1) can also be seen here.
  • FIG. 7C shows an embodiment of the clamping element 10 which is modified twice compared to FIG. 7A.
  • two instead of one fastening means ILA and 11B are provided in the form of bent metal tabs, so that the clamping element is attached Both ends can be hung in a reinforcing bar 21.
  • the tab-shaped fastening means 11A, 11B are each provided in pairs while maintaining a distance D from one another, so that the fastening of the clamping element is also possible in those applications in which reinforcing rods 21A crossing the reinforcing rod holding the clamping element are provided in the region of the fastening point .
  • reinforcing rods 21A crossing the reinforcing rod holding the clamping element are provided in the region of the fastening point .
  • the compression spring has a changed characteristic - namely, it is somewhat stiffer under otherwise identical conditions and must dip away from the formwork in the direction of the reinforcement if it is put under tension by attaching the formwork. This is shown in Figure 7D. From this figure it can also be seen that the compression spring in the tensioned state if necessary also in the
  • FIGS. 7E and 7F likewise show an application in which a screwable reinforcement connection with its reinforcement connection piece 23D has to be pressed onto a formwork.
  • the associated reinforcing bar 23E thus extends away from the formwork, in particular at right angles.
  • the reinforcing bar 23E can either penetrate a hole 26C in the clamping element 10, as shown in the exemplary embodiment according to FIG. 5, or into one
  • Recess 26A of the clamping element are used laterally, such as. B. shown in the embodiment of FIG. 4.
  • a supplementary second spring element (spacing element 14B) is provided in the exemplary embodiment according to FIG. 7F.
  • one or the two spring elements plunge deep into the area of the Reinforcement element holding the clamping element, because reinforcement screw connections of the type shown can have a not inconsiderable overall length, which is in any case greater than the intended concrete cover B (FIG. 7D).
  • the component shown in FIG. 7F and mentioned above as an additional spring element can also - possibly even exclusively - have the task of serving for a suitable consideration of the length of the reinforcement connection piece 23D, thus fulfilling the function of a spacer or length adjustment means.
  • FIG. 7A / B shows, in the exemplary embodiments according to FIGS. 7E and 7F the spring element is arranged in a direction oriented away from the formwork 22.
  • FIGS. 8 and 9 show that a plurality of spring elements can also be provided in a parallel arrangement, for example in order to press longer connecting pieces against the casing in a force-distributed manner (FIG. 8) or that the trapezoidal shape of the spring element, as was explained in connection with FIGS. 7A to 7F, can be inverted (Fig. 9).
  • FIGS. 10 to 11B show that a clamping element according to the invention is also possible with a single first and second support element for support on the reinforcement and the connecting piece.
  • FIGS. 12 to 16B show further variants of the possible designs of the spring element, which can also be made in a meandering shape from a spring sheet metal strip, as shown in the dashed variant of FIG. 12.
  • a first possibility of supporting the reinforcement is provided in the area of the fastening means 11.
  • the elongated area adjoining this can be attached to Serve anywhere on a further reinforcement bar (Fig. 16A / B).
  • a so-called wall connection box 23A is clamped to the one-piece clamping element 10.
  • FIGS. 17 to 19 represent further variants of a one-piece clamping element with double support possibility on the reinforcement, in FIG. 17 the combination with a wall connection reinforcement, in FIG. 18 a spiral leaf spring and in FIG Many different pressure points are realized.
  • the exemplary embodiments according to FIGS. 20 to 22 basically show two-part clamping elements in which the fastening means each represents a separate component.
  • the fastening means according to FIG. 20 is a pair of connecting wires 11C, according to FIG. 21 a clamp HD and according to FIG. 22 a fastening clip HE.
  • the clamping element is basically in three parts.
  • a coil spring is used as the compression spring
  • the second support body 13 is fastened to a spring end (FIGS. 23A and 23B), for. B. by welding (Fig.
  • the first support body 12 is arranged for at least one reinforcing bar together with fastening means.
  • a fastening clip HE welded to the second spring end is used, while according to the exemplary embodiment according to FIG. 24 a further form of a clamp HD is used.
  • the embodiment according to FIG. 24 also contains the special feature that the spiral spring is surrounded by short telescopic pipe sections 28A, B. 23B also provides a guide 33A / B for the connecting element 23.
  • FIGS. 23A a fastening clip HE welded to the second spring end
  • the combined fastening means with the first support body which is designed as a simple stamped / bent part and which holds a coil spring by means of holding tabs 29 punched out and bent out of a sheet metal blank.
  • the other end of the compression spring serves simultaneously as a second support body 13.
  • a fastening clip HE welded onto the opposite rear side is provided as the fastening means.
  • the embodiment according to FIG. 26 is simplified in that instead of a fastening clip, fastening tabs HF which are punched out and bent by approximately 180 ° are provided as fastening means.
  • FIGS. 27A to 29B show conical coil springs as compression springs and two reinforcement bar sections arranged parallel to one another as first support bodies. Since the section lengths are freely selectable, they can be long enough to be attached to two reinforcement bars 21, 21B (FIG. 30) by tying them in each case. The position of the clamping element with respect to the reinforcement can therefore be done somewhat freely and entirely according to the needs of the positioning of the connecting element. The pairing of the first
  • Support body enables the conical coil spring to be supported without tilting.
  • the free spring end (shown on the left in FIG. 27A) wraps around the foot 24A of an anchor bolt 24, which for anchoring is attached to an anchor rail 23B on the rear side thereof, e.g. B. is welded.
  • the coil spring is welded to the two reinforcing bar sections 12D.
  • This is also the case in the embodiment according to FIG. 28A.
  • the two exemplary embodiments according to FIGS. 27A to 28D is the conical
  • the conical compression spring in the exemplary embodiment according to FIG. 29A / B is prestressed when the clamping element is assembled.
  • the coil spring is not welded to the reinforcing bar sections 12D, but is secured in position in a locking plate 30 which is welded to the two reinforcing bar sections by the head 24B of the anchor bolt 24 penetrating the spring engaging in the locking plate, which is because of the selected length dimensions only succeed if the spring is slightly preloaded. This ensures that the latter cannot be lost without welding the spring to the rebar sections.
  • a clamping foot (foot 24A) which surrounds the anchor bolt in one-part (FIGS. 28B / C) or in a multi-part version (FIG. 28D) and the free one Spring end catches.
  • FIGS. 30 and 34A to 36C show first supporting bodies in the form of reinforcing bar sections 12D which can be variably attached to the reinforcement.
  • the compression spring and the second support body are similar to those in FIG. 1.
  • the two embodiments according to FIGS. 34A and 34B show the use of resilient flat strip strips instead of spiral compression springs for applications such as those shown in FIGS. 27A through 29B.
  • FIG. 35 shows a clamping element as can be used for the embodiment according to FIGS. 34A and 34B:
  • a resilient flat strip is connected to two reinforcing bar sections by welding and is provided with three cutouts for attachment to an anchor bolt 24 of an anchor rail 23B, the central cutout 26A similar to the exemplary embodiment according to FIG. 4 and the two other cutouts as keyhole-shaped passages. Refractions 34 after bending the resilient ribbon strip allow hanging in the head 24B of the anchor bolt. In the two embodiments, the spring can therefore be held under prestress from the outset.
  • FIGS. 36A to 36C is a special form of the one already shown in FIGS. 27A / B shown clamping element (in which case the spiral compression spring is cylindrical).
  • the clamping element in turn serves to fasten a reinforcement (screw) connection piece, as already described in connection with the exemplary embodiments according to FIGS. 7E and 7F.
  • a wedge 31 engaging in the spiral passages of the spring at a predeterminable point determines the length of the spring travel as a function of the length of the reinforcement connection piece and the concrete cover as well as the desired pressing force.
  • the spring is loaded under tension when installed.
  • the support body 12 (in contrast to FIG. 29B) is designed as an elongated sheet metal strip and is provided with a cut-out (opening 32) into which the head 24B of an anchor bolt 24, as is shown in the exemplary embodiments according to FIGS. 27A, 28A and 29A are used.
  • the anchor bolt can be hooked into an opening 32 in different positions between two adjacent reinforcing bars and can thus be particularly well adapted to the positioning requirements.
  • the head 24B is clamped by elements projecting resiliently into the opening 32, while in the exemplary embodiment according to FIG. Movement is hooked into an opening 32 adapted to the shape of the head 24B.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

L'invention concerne un élément de serrage (10) pour élément constitutif en béton armé à produire, qui permet de serrer des pièces d'assemblage (23), telles que des éléments d'assemblage de raccordement mural (23A), des éléments d'assemblage d'ancrage ou pour flexibles, contre le coffrage (22). Pour éviter tout endommagement dudit coffrage, l'élément de serrage comprend: au moins un élément de fixation (11; 11A, 11B) servant à fixer l'élément de serrage (10) sur au moins une barre d'armature (21) de l'élément constitutif en béton à produire; au moins un premier corps de soutien (12; 12A, 12B) servant à étayer l'élément de serrage contre au moins une barre d'armature de l'élément constitutif en béton à produire; au moins un second corps de serrage (13; 13A, 13B) servant à étayer l'élément de serrage (10) contre la pièce d'assemblage (23, 23A,...) et au moins un ressort de pression ou de traction (14) destiné à produire une précontrainte entre le premier et le second corps de soutien, à l'état monté, entre l'armature et le coffrage de l'élément constitutif à produire. Ce système simplifie l'opération consistant à enlever l'élément d'assemblage après décoffrage.
PCT/EP1998/007317 1997-11-14 1998-11-16 Element de serrage pour element constitutif en beton,pour serrer des pieces d'assemblage contre le coffrage WO1999025941A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19881633T DE19881633D2 (de) 1997-11-14 1998-11-16 Klemmelement zum Andrücken von Verbindungsstücken an die Schalung für ein Betonbauteil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29720149U DE29720149U1 (de) 1997-11-14 1997-11-14 Klemmelement zum Andrücken von Verbindungsstücken an die Schalung für ein Betonbauteil
DE29720149.2 1997-11-14

Publications (2)

Publication Number Publication Date
WO1999025941A1 WO1999025941A1 (fr) 1999-05-27
WO1999025941A9 true WO1999025941A9 (fr) 1999-08-26

Family

ID=8048580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/007317 WO1999025941A1 (fr) 1997-11-14 1998-11-16 Element de serrage pour element constitutif en beton,pour serrer des pieces d'assemblage contre le coffrage

Country Status (2)

Country Link
DE (2) DE29720149U1 (fr)
WO (1) WO1999025941A1 (fr)

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DE10049006A1 (de) * 2000-09-27 2002-04-11 Deha Ankersysteme Ankerschienenanordnung
FI121677B (fi) * 2004-12-08 2011-02-28 Teraespeikko Oy Lävistysraudoite
ATE341672T1 (de) * 2005-01-14 2006-10-15 Halfen Gmbh & Co Kg Befestigungselement für eine montageschiene und schienenanordnung
NZ571533A (en) * 2008-09-24 2009-12-24 Stahlton Engineered Concrete A Hanger system for concrete building units
DE202010000544U1 (de) * 2010-04-09 2010-06-10 Kaiser Gmbh & Co. Kommanditgesellschaft Installationsdose für elektrotechnische Zwecke
DE102010029045A1 (de) * 2010-05-18 2011-11-24 Hilti Aktiengesellschaft Adapter und Haltesystem mit einem Adapter
DK2551416T3 (en) * 2011-07-27 2014-02-24 Hilti Ag anchor rail
EP2626484B1 (fr) 2012-02-10 2019-02-20 Christoph Morach Aide au montage pour installations à parois en béton
CN103866921B (zh) * 2014-03-26 2016-07-13 王睿敏 预制钢筋混凝土构件之间的钢筋连接件、制作方法及施工方法
DE102014107085B3 (de) * 2014-05-20 2015-08-13 Günther Spelsberg GmbH & Co. KG Elektroinstallationsvorrichtung für den Betonbau
CN106677419A (zh) * 2017-01-28 2017-05-17 初明进 带连接钢筋的预制混凝土构件制作方法
CN106869332A (zh) * 2017-01-28 2017-06-20 初明进 带连接钢筋的预制混凝土构件制作方法
CN106738306B (zh) * 2017-01-28 2019-01-01 初明进 带连接钢筋的预制钢筋混凝土构件制作方法
CN106738307B (zh) * 2017-01-28 2019-01-01 初明进 带连接钢筋的预制构件制作方法
CN106827226A (zh) * 2017-01-28 2017-06-13 初明进 带连接钢筋的预制构件制作方法
CN106626050A (zh) * 2017-01-28 2017-05-10 初明进 带连接钢筋的预制钢筋混凝土构件制作方法
DE102020121852A1 (de) * 2020-08-20 2022-02-24 Fischerwerke Gmbh & Co. Kg Ankerhalter, Ankerschiene und Anordnung mit der Ankerschiene
US20240217137A1 (en) * 2021-07-14 2024-07-04 Leviat Pty Ltd Recess former and anchor assembly
US20230417072A1 (en) * 2022-06-27 2023-12-28 JMR Technologies Thermally Insulated Tilt-Up Wall Lift and Brace Assemblies

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Also Published As

Publication number Publication date
DE19881633D2 (de) 2000-07-06
DE29720149U1 (de) 1999-05-12
WO1999025941A1 (fr) 1999-05-27

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