EP1847666A1 - Dispositif d'ancrage pour lier des planches de coffrage - Google Patents

Dispositif d'ancrage pour lier des planches de coffrage Download PDF

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Publication number
EP1847666A1
EP1847666A1 EP06008263A EP06008263A EP1847666A1 EP 1847666 A1 EP1847666 A1 EP 1847666A1 EP 06008263 A EP06008263 A EP 06008263A EP 06008263 A EP06008263 A EP 06008263A EP 1847666 A1 EP1847666 A1 EP 1847666A1
Authority
EP
European Patent Office
Prior art keywords
anchor
formwork
shank
head
anchoring device
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.)
Withdrawn
Application number
EP06008263A
Other languages
German (de)
English (en)
Inventor
Alexander Bauer
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.)
Bauer Sondermaschinenbau Alexander Bauer
Original Assignee
Bauer Sondermaschinenbau Alexander Bauer
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 Bauer Sondermaschinenbau Alexander Bauer filed Critical Bauer Sondermaschinenbau Alexander Bauer
Priority to EP06008263A priority Critical patent/EP1847666A1/fr
Publication of EP1847666A1 publication Critical patent/EP1847666A1/fr
Withdrawn legal-status Critical Current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
    • E04G17/06—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

Definitions

  • the invention relates to an anchoring device for connecting at least two mutually spaced, spaced formwork panels of concrete wall formwork, with a formwork anchor having a shank and a head, with two anchor plates sitting on both sides of the ends of the shank on the formwork anchor, and with an anchor nut, which is screwed onto a thread of the shaft at a head opposite the end of the formwork anchor and rotatable relative to the head.
  • Concrete wall formwork is understood to mean all types of formwork with which, for example, walls, pillars, foundations, manholes and the like can be produced from concrete or reinforced concrete.
  • Formwork anchor devices are used in the production of about concrete walls which define the concrete walls to be cast limiting formations to each other so that when introducing the concrete into the casing this remains despite their occurring mechanical stresses in their position.
  • the two opposing formwork which may have one or more shuttering panels, thereby fixed to each other that a commonly designed as a screw fastening element, hereinafter referred to as formwork anchors, through the remains.
  • the two opposing formwork which may have one or more shuttering panels, thereby fixed to each other that a usually designed as a screw fastening element, hereinafter referred to as shuttering anchors, extends through the casing and the filling space, in which the concrete is poured later .
  • shuttering anchors a usually designed as a screw fastening element, hereinafter referred to as shuttering anchors, extends through the casing and the filling space, in which the concrete is poured later
  • This formwork anchor is fixed on both sides outside the formwork, for example by nut-like elements on the formwork, whereby the mechanical load on the casing is caught when pouring the concrete, so that the formwork panels do not move.
  • formwork anchor devices may be formed.
  • One solution provides to allow the removal of the formwork anchors after pouring the concrete in that the formwork anchors do not come into direct contact with the concrete.
  • the formwork anchors are protected within the filling space for the concrete by radially surrounding cardboard or plastic sleeves against contact with the concrete, whereby the formwork anchors can be easily pulled out of the concrete wall after curing of the concrete.
  • Another solution provides for the use of multi-part formwork anchors without surrounding sleeve, in which a middle formwork anchor part remains as a lost part in the concrete wall, at both ends of the actual tension rods are fixed.
  • an anchor device having become known over its length conical formwork anchors, which consists of a bolt element and two locking elements, which are coupled in the two opposite end portions of the bolt member with this.
  • the anchor device is designed for the transmission of tensile and compressive forces.
  • the locking elements are equipped with fastening means for fixing to the formwork panels. Due to the conical shape of the formwork anchor is achieved that this after solidification of the concrete with little effort from the anchor holes of the formwork panels or can be pulled out of the concrete.
  • a disadvantage of the latter anchor device is the fact that the locking elements are expensive to produce and must be provided on the formwork panels in addition to the anchor holes corresponding fixing means for frictional connection with the locking elements. In addition, it means an additional time for the fitter to attach the locking elements when switching on and off respectively on the formwork panels or to solve these.
  • the invention is therefore based on the object to propose a generic anchor device that can be used for conventional formwork panels and inexpensive to produce and its formwork anchors is easily removable despite direct contact with the concrete from the solidified concrete.
  • a shank of the formwork anchor has lengths of different diameters, the diameters of the different lengths ranging from a head of the formwork anchor formed at one end of the shank to a thread of the shank disposed at the other end of the shank , are reduced from one length range to the next.
  • shank tapering along its length shank anchors can be removed when stripping a hardened concrete wall particularly easy in the axial direction of the anchor holes of the formwork panels or, from the form-fitting connected to the shank site concrete.
  • the thread of the formwork anchor is not damaged when pulling out, since this length range has the smallest diameter.
  • the length regions of the shaft are offset from one another in the radial direction.
  • the steps formed thereby can be arranged perpendicular or inclined to the axis of the shaft.
  • At least a portion of the successive longitudinal areas connecting annular surfaces of the formwork anchors is formed in the immediate vicinity of the filling space for the concrete limiting formwork skins of the formwork panels and can be pressed when screwing the anchor device to an area around the anchor holes of the formwork panels, in particular of the formwork skins penetrating anchor holes , They prevent leaks in the area of the clamping points by sealing an annular gap between the shank of the formwork anchor and the anchor holes of the formwork panels, so that no cement-water mixture (Schlemme) flows through the anchor holes.
  • visible defects in the concrete are avoided after demoulding the concrete wall, which are only laborious nachzuêtn.
  • the one or more conical length ranges are preferably provided in the area between the formwork panels, so that the positive and non-positive connection between the shank of the formwork anchor and the hardened in situ concrete when pulling out the formwork anchors already after a short distance triggers and the formwork anchors without much effort from the pull solidified concrete out.
  • the shank of the shuttering anchor on three lengths, wherein the central length region is conical.
  • the head of the formwork anchor is executed edged.
  • the head has thus attack surfaces for a tool, in particular for a square or hex wrench on.
  • the formwork anchor can thus be rotated by turning the head about its longitudinal axis, so that the anchor nut on the opposite side of the head can be easily moved back and forth on the thread of the shaft.
  • Another advantage is that the frictional connection between the shaft and the solidified concrete can be achieved or reduced by turning the formwork anchor.
  • the anchor nut and the armature plate associated with the armature nut are rigidly connected to each other.
  • the anchor nut can be arranged on the formwork panel associated side or on the other side of the anchor plate. It is also possible to perform the anchor plate as an anchor nut by providing them with a corresponding thread. Due to the fact that the anchor nut can be moved on the shaft by turning the formwork anchor from the head side, in particular can be tightened and detached from the formwork board, the anchor nut needs no contact surfaces for a tool, whereby it can be formed as a threaded sleeve. The threaded sleeve can thus also engage in the formwork panel, so that the formwork anchors must not or only slightly project beyond the formwork panels outside.
  • the single figure shown in the drawing shows an anchoring device according to the invention in a schematic representation.
  • the illustrated in the drawing embodiment of the anchor device 1 shows a shutter anchor 2 with a shaft 3, one end of a head 4 and the other end has a thread 5 for screwing an anchor nut 6.
  • the shuttering panel 12 and a formwork panel 13 spaced therefrom define a filling space 14 into which concrete 15 is filled.
  • the formwork panels 12, 13 with each other at these anchor holes 16, 17, 18, 19 are provided, through which the shaft 3 of the formwork anchor 2 is feasible.
  • the head 4 associated with the longitudinal section 7 and the longitudinal section 9 with the thread 5 in the formwork panel 12 and 13, while the interposed middle longitudinal section 8 extends in the filling space 14.
  • the two outer longitudinal sections 7, 9 are cylindrical, the central longitudinal section 8 is conical.
  • the longitudinal sections 7, 8, 9 of the shaft 3 are offset from one another in the radial direction and connected by means of annular surfaces 20, 21.
  • the annular surfaces 20, 21 are perpendicular to the axis of the formwork anchor 2 and are pressed against a formwork skin 22 and 23 in an area around the anchor holes 17, 19 and seal the filling space 14 to the outside.
  • the anchor nut 6 which is designed as an anchor sleeve 6, screwed onto the thread 5 of the longitudinal section 9 of the shaft 3.
  • the threaded sleeve 6 is rigidly connected to the second anchor plate 10 on its side facing the filling space 14 and extends through the anchor hole 18 to approximately in the middle of the shuttering board 13 and thereby engages over the thread 5 of the shaft 3 in a large area.
  • the anchor hole 18 is covered on its outwardly directed side by the anchor plate 10, which has no bore for the passage of the shaft 3. Consequently, the Formwork anchor 2 has a length which corresponds approximately to the sum of the thickness of the formwork panels 12, 13 plus the width of the filling space 14.
  • the formwork anchor 2 For screwing and loosening the threaded sleeve 6, the formwork anchor 2 by means of the head 4, which projects beyond the anchor plate 11 outside and is preferably formed hexagonal, relative to the fixed anchor plate 10 with the threaded sleeve 9 are rotated by a tool about its longitudinal axis.
  • the anchor plates 10, 11 When screwing the anchor device 1, the anchor plates 10, 11 are pressed against the outer formwork panels 12, 13 and can thus transmit the pressure forces of the formwork panels 12, 13 during the filling of the concrete 15 on the formwork anchor 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP06008263A 2006-04-21 2006-04-21 Dispositif d'ancrage pour lier des planches de coffrage Withdrawn EP1847666A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06008263A EP1847666A1 (fr) 2006-04-21 2006-04-21 Dispositif d'ancrage pour lier des planches de coffrage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06008263A EP1847666A1 (fr) 2006-04-21 2006-04-21 Dispositif d'ancrage pour lier des planches de coffrage

Publications (1)

Publication Number Publication Date
EP1847666A1 true EP1847666A1 (fr) 2007-10-24

Family

ID=36972951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008263A Withdrawn EP1847666A1 (fr) 2006-04-21 2006-04-21 Dispositif d'ancrage pour lier des planches de coffrage

Country Status (1)

Country Link
EP (1) EP1847666A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007034500A1 (de) * 2007-07-25 2009-02-05 Kleinsorge Verbindungstechnik Gmbh Spannschraube für den Schalungsbau, sowie Spannschraubenanordnung für den Schalungsbau
WO2011038808A1 (fr) 2009-10-02 2011-04-07 Rempel Stanztechnik Gmbh & Co. Kg Procédé de fabrication d'une plaque de support ou d'ancrage
CN101654954B (zh) * 2008-08-22 2011-06-22 浙江新源控股集团有限公司 塑料穿墙栓
CN111894153A (zh) * 2020-06-30 2020-11-06 江苏凯宇建材科技有限公司 通孔锚栓装置
CN114319867A (zh) * 2022-01-26 2022-04-12 佛山市长盛建筑科技有限公司 一种采用对拉杆的新型铝合金模板

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486683A (en) * 1949-01-31 1949-11-01 Sass Thomas Concrete form tie rod

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486683A (en) * 1949-01-31 1949-11-01 Sass Thomas Concrete form tie rod

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007034500A1 (de) * 2007-07-25 2009-02-05 Kleinsorge Verbindungstechnik Gmbh Spannschraube für den Schalungsbau, sowie Spannschraubenanordnung für den Schalungsbau
DE102007034500B4 (de) * 2007-07-25 2012-04-05 Kleinsorge Verbindungstechnik Gmbh Spannschraube für den Schalungsbau, sowie Spannschraubenanordnung für den Schalungsbau
CN101654954B (zh) * 2008-08-22 2011-06-22 浙江新源控股集团有限公司 塑料穿墙栓
WO2011038808A1 (fr) 2009-10-02 2011-04-07 Rempel Stanztechnik Gmbh & Co. Kg Procédé de fabrication d'une plaque de support ou d'ancrage
DE102009048114A1 (de) 2009-10-02 2011-04-07 Rempel Stanztechnik Gmbh & Co. Kg Verfahren zur Herstellung einer Stütz- oder Ankerplatte
CN111894153A (zh) * 2020-06-30 2020-11-06 江苏凯宇建材科技有限公司 通孔锚栓装置
CN114319867A (zh) * 2022-01-26 2022-04-12 佛山市长盛建筑科技有限公司 一种采用对拉杆的新型铝合金模板

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