EP2536899B1 - Anchor system of a concrete wall formwork - Google Patents

Anchor system of a concrete wall formwork Download PDF

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Publication number
EP2536899B1
EP2536899B1 EP11702442.2A EP11702442A EP2536899B1 EP 2536899 B1 EP2536899 B1 EP 2536899B1 EP 11702442 A EP11702442 A EP 11702442A EP 2536899 B1 EP2536899 B1 EP 2536899B1
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EP
European Patent Office
Prior art keywords
formwork
tie rod
thread
threaded nut
sealing
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
EP11702442.2A
Other languages
German (de)
French (fr)
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EP2536899A1 (en
Inventor
Hans Braun
Bernd Renz
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.)
Peri GmbH
Original Assignee
Peri 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 Peri GmbH filed Critical Peri GmbH
Priority to SI201130730T priority Critical patent/SI2536899T1/en
Priority to PL11702442T priority patent/PL2536899T3/en
Publication of EP2536899A1 publication Critical patent/EP2536899A1/en
Application granted granted Critical
Publication of EP2536899B1 publication Critical patent/EP2536899B1/en
Priority to HRP20160438TT priority patent/HRP20160438T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • 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
    • 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
    • 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
    • E04G17/0655—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts
    • E04G17/0657—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts fully recoverable

Definitions

  • the invention relates to a formwork element with a formwork skin and a locking device for an anchor rod of an anchor system concrete wall formwork, wherein the locking device has a nut member for screwing through the anchor rod by a nut thread of the nut member.
  • Such anchor systems are used in formwork technology in concreting reinforced concrete structures.
  • Concrete formwork elements, or short formwork elements, of concrete wall formwork are each made of a formwork skin and supporting elements, e.g. Side member and cross bar, constructed.
  • the two sides of a wall are each made up of a concrete formwork element, i. a formwork half, formed, which are held together by anchor rods.
  • the anchor rods are inserted through holes in the formwork skin and attached at their ends to the formwork supporting the elements so that the force acting on the anchor rods during concreting tensile force is absorbed.
  • the two ends of the anchor rods have threads on which nuts are screwed as Ankerfix isten.
  • the effective length of the anchor rod and thus the strength (thickness) of the wall to be concreted is determined.
  • the pressure exerted on the formwork by the liquid concrete during concreting is dissipated via the nuts on the tie rods.
  • the tie rods are loaded on train. Spacers are inserted between the shell skins in the volume of the wall to be concreted, which can absorb the compressive forces arising during the concreting and mounting of the anchor rods, thereby ensuring that these compressive forces do not undesirably affect the wall thickness, i. Reduce.
  • the anchor rod Since the anchor rod is always viewed from the outside, viewed from the rear side of a first formwork element, through the already erected formwork elements, the formwork builder who positions the tie rod, the Anker carefully ordersbohrung the second formwork element can not see. Although the latter armature lead-through bore is still relatively easy to find, the armature bar is then inclined to the formwork facing in the case of poorly aligned armature leadthrough holes, which makes it very difficult to locate the thread of a locking device fastened to the rear side of the second formwork element. Further, in such an inclined position of the anchor rod, the locking devices are no longer fully flush with the formwork elements, resulting in only a selective power transmission in a concreting of the forces occurring from the concrete wall formwork on the locking devices and this heavily loaded.
  • a concrete wall formwork with a first and a second each having a formwork facing formwork element and an anchor system with an anchor rod and locking devices is disclosed, with the formwork elements face with front sides of their formwork skins.
  • the anchor rod is guided by one anchor through hole in the formwork elements.
  • Further annular sealing element are provided for sealing the armature feedthrough holes in the formwork skins.
  • Each of the tie rods for the anchor rod of the anchor system of the concrete wall formwork has a nut member for screwing the anchor rod through Nut screw of the nut member, and a dome plate on. The dome plate is fastened by means of fasteners on a back of one of the formwork elements of the concrete wall formwork.
  • the dome plate has a spherically shaped plate area with an opening in which the nut element is arranged with radial clearance, wherein the nut element has a groove-like radial circumferential receptacle in which the edges of the opening are received in the spherical plate area.
  • a nut element of each anchor system which is arranged ankerstabspitzen utility, has at its concrete shutter side arranged end aligned with the nut thread of the nut member, tubular guide means which serves to facilitate the finding of the screw-in of the nut thread when screwing the anchor rod.
  • the disclosure DE 34 05 976 A1 An anchor system for a concrete wall formwork.
  • the anchor system has anchor nuts which are each provided with a clamping body.
  • the openings provided in the formwork elements for anchor can be made relatively large, whereby the setting of the anchor is facilitated from the outside.
  • the invention is based on the object to provide a locking device for an anchor system and a concrete wall formwork, which avoid disadvantages of the prior art, the tightness of the armature feedthrough holes should be improved, are passed through the oblique tie rods.
  • the formwork element according to the invention with a formwork skin comprises a locking device for an anchor rod of an anchor system of a concrete wall formwork.
  • the locking device comprises an annular sealing member for sealing off an anchor bushing hole in the formwork skin, a nut member for screwing the anchor rod into a nut thread of the nut member, and a dome plate.
  • the dome plate can be fastened by means of fastening means on a rear side of the formwork element of the concrete wall formwork and has a spherically formed plate area with an opening in which the nut element is arranged with radial play.
  • the nut member has a groove-like radial circumferential receptacle in which the edges of the opening are received in the spherical plate area.
  • the sealing element has a rubber-elastic or visco-elastic inner sealing ring and the shuttering element side to be arranged free end of the guide device projects sealingly into the inner sealing ring.
  • a locking device When using a locking device according to the invention can substantially no liquid concrete between the anchor rod and the sealing element exit through the anchor bushing hole. Further, the possibility of damage to the sealing ring during insertion of the anchor rod is reduced in the guide device. Also, the asymmetric pressure load of the rubber-elastic inner sealing ring at not fully aligned armature lead-through holes is reduced, since a load distribution of the forces arising from the pressure load is made possible by the sealing means fitting to the inner sealing ring guide means. The anchor rod itself is not applied to the inner seal.
  • the shuttering element side to be arranged free end of the guide device closes according to the invention with a shell side to be arranged
  • the sealing element has a metal sleeve, wherein the inner sealing ring is arranged sealingly in the metal sleeve.
  • the metal sleeve prevents damage to the inner sealing ring and protects the inner sealing ring in introduced anchor bushing holes.
  • the metal sleeve on a shell side to be arranged radially encircling and radially outwardly extending broadening, whereby a stop for a defined positioning of the sealing element is formed in an armature feedthrough bore.
  • the sealing element may have a preferably made of a rigid plastic outer ring, wherein the outer ring is plugged or screwed onto the metal sleeve.
  • the outer sealing ring can be used for back-side screwing.
  • the shuttering element side to be arranged free end of the guide means abut against a radially encircling and widened sealing lip of the inner sealing ring.
  • the free end of the guide device can serve as a stop for a tie rod to be screwed.
  • the spherically formed plate region forms a spherical shell region with a shell element side ball center, wherein surface areas of the circumferential recording of the nut element, which bear against the spherically formed Piatte Scheme, are formed complementary to the spherical plate region.
  • an anti-rotation is provided on the nut member.
  • This rotation can be achieved for example by forming the superimposed surfaces of the nut member and the dome plate with a high Verwindreibung eg by a nub surface.
  • the anchor rod for example, from the back of the first formwork element in the locking device, which is attached to the back of the second formwork element, are screwed without a formwork builder on the back of the second formwork element, the locking device during screwing, to prevent co-rotation of the nut member with the anchor rod, must serve.
  • Such a locking device is thus suitable, for example, for use in inaccessible concrete formwork areas.
  • the rotation on a stop element wherein by the stopper element, a rotation of the nut member by abutment on a, preferably formed by the fastening means, stop can be prevented.
  • the abutment element is of a wing-like design, a stop arranged further away from the nut element can also prevent twisting.
  • a concrete wall formwork according to the invention comprises a first and a second formwork each having a formwork facing element and an anchor system with an anchor rod, wherein the second Schlaungselement is formed according to the invention, and wherein the formwork elements with front sides of their Schalphaseute face.
  • the locking device is in the region of an anchor bushing hole in the formwork skin of the second formwork element rear side, preferably fastened by fastening means, arranged, and the sealing element of the locking device is provided for sealing the armature feed-through bore in the formwork skin of the second formwork element.
  • the anchor rod coming from the back of the formwork of the first formwork element, passed through a Anker carefully placed into the formwork of the first formwork element and through the sealing element and screwed or screwed into the nut screw of the nut element of the locking device according to the invention.
  • the free end of the guide means is arranged schalungselement 101 and sealingly inserted with the inner sealing ring in the sealing element, so that the free end of the guide means is positioned defined on the sealing element on the formwork skin.
  • the anchor rod on a rounded anchor rod tip, whereby the finding of the screw-in opening at the free end of the guide device is facilitated.
  • the anchor rod advantageously has a first screw thread in the end region of the anchor rod facing away from the anchor rod and a second screw thread in the end region of the anchor rod near the anchor rod tip.
  • the anchor rod advantageously has a smooth surface, which makes the adhesion of concrete more difficult.
  • the anchor rod tapers conically between the first and the second screw thread in the direction of the anchor rod tip, so that the removal of the anchor rod from a hardened concrete wall is facilitated.
  • the thread form of the first screw thread may differ from the thread form of the second screw thread, so that the anchor tip near thread can be made very coarse, whereby the finding of the nut thread of the nut member is facilitated.
  • the anchor rod according to the invention has in the tip region on a stop which rests in the screwed state in the guide means at the free end of the guide means. Predetermined wall thicknesses can be adjusted easily and inaccuracies in the strength of a wall to be concreted are avoided.
  • the sealing element of the locking device is identical, in particular an identical inner diameter exhibiting sealing element for sealing the anchor passage bore provided in the formwork of the first formwork element.
  • the anchor rod is performed by the further sealing element.
  • the shape of a conically tapered anchor rod is designed such that the largest diameter of the conical region is adapted to the sealing element, that it can be inserted sealingly into the inner sealing ring of the further sealing element.
  • the design of the anchor system has the additional advantage that the same sealing elements can be used on both sides of the formwork elements. This is because on one side of the anchor rod and on the other side, the guide element in the region of the sealing element have almost the same outer diameter.
  • FIG. 1 shows a formwork element according to the invention a concrete wall formwork in the cutout in the region of opposite not aligned anchor holes.
  • FIGS. 2a and 2 B show a formwork element according to the invention with the locking device in different sections in attached to a rear side of a concrete formwork element position as a picture detail of FIG. 1 , where in FIG. 2b an enlarged section FIG. 2a is shown.
  • FIG. 3 shows an enlarged view of in FIG. 1 Locking device shown on the left.
  • FIGS. 2a . 2 B and 3 are each detail views of in FIG. 1 shown concrete wall formwork, in each case a sectional view at the level of the longitudinal axis of an anchor rod 2 of the anchor system, which connects a first and a second formwork element 5.6 of the concrete wall formwork together, is shown.
  • the formwork elements 5,6 each have a formwork skin 7 and longitudinal bars. Possibly. existing crossbars are not shown because of the selected image detail.
  • On longitudinal and transverse bar the formwork skin 7 is usually applied, in particular riveted.
  • the anchor rod 2 is aligned at an angle ⁇ obliquely to the surfaces of the Schalphase 7.
  • FIG. 1 runs in each case by a longitudinal bar, so that the respective longitudinal bar is shown only by the wall 11 of the steel profile from which this is made.
  • the formwork elements 5.6 are opposite to the formation of a concrete wall to be concreted with the front sides of their Schalphase 7.
  • an anchor leadthrough hole 13 is provided in each of the shuttering skins 7.
  • the anchor rod 2 is of the Rear side of the first formwork element 5 from passing through the armature feedthrough holes 13 and the longitudinal latch, in the region of the armature feedthrough holes 13 are arranged, passed.
  • annular sealing elements 15 are arranged or inserted in the armature lead-through bores 13, which each comprise the anchor rod 2 in such a way that substantially no liquid can escape through the armature leadthrough holes 13 during concreting.
  • a locking device 20,21 positioned in the region of the armature feedthrough holes 13.
  • the locking devices 20,21 each have a nut member 23,24 with a nut thread, ie a bore with an internal thread, through which the anchor rod 2 is screwed or is.
  • the locking devices 20,21 each have a dome plate 26,27 with fastening means 30 for fastening the dome plate 26,27 and thus the locking device 20,21 on the back of each one of the formwork elements 5.6.
  • the fastening means 30 are formed by a bore in the edge region of the dome plate 26,27, through which a screw bolt 32 can be screwed into a screw hole on the respective longitudinal latch or is screwed.
  • the dome plate 26,27 is made of a steel plate. It has a spherically formed plate region, ie a plate region shaped as a spherical shell region, in which an opening is provided.
  • the spherical shell region in each case forms a shell element-side ball center. That is, the curvature of the spherical shell region is oriented so that its center in the region of the formwork element 5.6 is located on the associated locking device 20,21 is attached. Preferably, this center lies in the Schalhautebene.
  • the concave surface of the dome plate 26,27 is arranged in the direction of the formwork skin 7 of the respective formwork element 5,6 with circumferential radial play.
  • the nut member 23,24 of the respective locking device 20,21 is positioned.
  • a radially encircling groove is provided which forms a receptacle 40 in which the edges of the opening in the spherical plate area of the associated dome plate 26,27 are accommodated.
  • the receptacle 40 has a shape corresponding to the spherical plate area, so that within the radial play a full deflection of the nut member 23,24 on the dome plate 26,27, out of the dome plate 26,27, is possible.
  • the groove can be formed, for example, by forming a ring 41 (FIG. 3) forming the concrete shutter side wall of the groove.
  • Fig. 2a is slipped or screwed onto a tubular portion of a part of the nut member 23, 24 which is formed as a dome nut.
  • the nut element 24 is designed in two parts. It consists of the sleeve-like extension, which is integral with the guide means 45 and in which the nut thread is, and a secured for example with a split pin screwed or plugged thereto anti-rotation device 60.
  • the anti-rotation device 60 has radially projecting from the nut member wing elements, so that Also, a further remote from the nut member 24 stop a co-rotation of the nut member 24 when screwing the anchor rod 2 can prevent.
  • the sealing elements 15 a rubber-elastic inner sealing ring 46 with a widened sealing lip 46 'and a metal sleeve 47, wherein the inner sealing ring 46 is arranged sealingly in the metal sleeve 47.
  • the shuttering element side arranged free end of the guide means 45 is sealingly inserted with the inner sealing ring 46 in the sealing element 15, which is arranged in the armature feedthrough bore 13 of the formwork skin 7, on which the locking device 21 according to the invention is attached.
  • the metal sleeve 47 is provided with a shell-side arranged radially encircling and radially outwardly extending widening 49 which defines the insertion depth of the sealing elements 15 in the armature feedthrough holes 13 and forms an edge protector as a positioning aid.
  • the guide device 45 is inserted so far into the associated sealing element 15 that it protrudes slightly beyond the outer surface of the formwork skin 7 and over a shell side arranged, bead-like widened outer edge of the inner sealing ring 46.
  • the supernumerary, protruding portion is designed as a free end 51 of the guide device 45.
  • the free end 51 of the guide means 45 and the widening 49 of the metal sleeve 47 project slightly beyond the outer surface of the formwork skin 7.
  • the sealing elements 15 have a made of a rigid plastic outer ring 48 which is screwed from the back of the formwork skin 7 on the metal sleeve 47, whereby in addition to the additional rear seal of the armature feedthrough holes 13, a positional fixation of the sealing elements 15 is achieved.
  • the anchor rod 2, which is passed through the sealing element 15 with the tip 50 is inserted directly into the guide means 45, which is secured to the anti-rotation device 60.
  • the anti-rotation device 60 is designed as a dome nut.
  • the pivot point (circle center), by which the cap nut (guide device 45, anti-rotation device 60) can pivot, displace or displace upon insertion of the anchor rod 2, lies in the region of the plane of the formwork skin 7.
  • an anti-rotation device 60 is provided.
  • These anti-rotation devices 60 are designed such that an outer region of the screw nut elements 24 during rotation of the respective screw nut element 24 to one, for example, by the fastening means 30 of the associated dome plate 27 formed Abut stop, so that the nut member 24 can not rotate further.
  • the anchor rod 2 is completely screwed in the figures.
  • the screw thread 70 of the anchor rod 2 in the region of the tip 50 of the anchor rod 2 has a smaller diameter than the remaining anchor rod 2, whereby at the transition of the screw thread 70 to the remaining anchor rod 2, a screw 52 is formed. With this screw 52 abuts the fully screwed anchor rod 2 to the free end 51 of the guide device 45.
  • the screw-in depth of the screw thread 70 in the region of the tip 50 of the anchor rod 2 in the nut member 24 of the associated locking device 21 is defined so defined.
  • the diameter of the anchor rod 2 in the region of the screw thread 70 is the same over the length of the thread (cylindrical threaded portion).
  • the nut thread of the locking device 20 positioned at the rear side of the first formwork element 5 from which the anchor rod 2 is inserted accommodates a larger anchor rod than the screw nut thread of the locking device 21 on the rear side of the second formwork element 6.
  • the illustrated anchor rods 2 also have at their end regions facing away from the tip 50 of the respective anchor rod, onto which the locking devices 20 fastened to the rear side of the first shuttering element 5 are screwed, split-pin holes 75 for the passage of securing splines. By means of the arrangement of these pinholes 75, the wall thickness of the wall to be concreted can be determined.
  • the anchor rods 2 are over their entire Course, except for the two ends formed threaded sections, tapered design.
  • FIG. 1 In order to be able to absorb tilting forces from the concreting process on the formwork elements 5, 6, which would lead to a reduction in the wall thickness of the wall to be concreted, by the illustrated anchoring system, is in FIG. 1 nor an attachment of the dome plates 26,27 provided on the back sides of the formwork elements 5,6.
  • the latter attachment is made in the figures by means of bolts 32 with molded rings.
  • the anchor rod 2 has in its between the formwork skins 7 to be positioned in the direction of the anchor tip 50 conically tapered shape, whereby the anchor rod 2, especially if this was treated or oiled before its application to the concrete wall formwork, after curing of the concrete concrete wall again relieved is removable.
  • the formwork elements 5.6 of the concrete wall formwork shown are arranged with their anchor feedthrough holes 13 not aligned opposite. Accordingly, the nut members 23, 24 of the locking devices 20, 21 are not centered in the openings of the spherical plate portions of the associated dome plates. Rather, the nut elements 23, 24 are radially deflected on the surfaces of the spherical areas of the dome plates, guided by the respective dome plates, so that the anchor rod 2 does not have to be aligned perpendicular to the scarf skins 7 of the formwork elements 5, 6. Sloping anchorages are permanently and repeatedly used with the locking device possible and this with one-sided operation. The operator side facing away from the anchor point is securely sealed, the anchor rod itself no longer presses on the sealing lip of the sealing element. The set anchor rod rests on the screw stop at the free end of the guide device. About the guide means sealing with the inner sealing ring of the sealing element.
  • a formwork element (5,6) with a formwork skin (7) and a locking device (21) for an anchor rod (2) of an anchoring system concrete wall formwork (6) wherein the locking device comprises: - an annular sealing member (15) for sealing a Anker carefully pricesbohrung (13) in the formwork skin (7), - a nut element (24) for screwing the anchor rod (2) in a nut thread of the nut member (24), and - a dome plate (27) by means of fastening means (30) on a Rear side of the formwork element (6) is fixed and which has a spherically shaped plate portion having an opening in which the nut member (24) is arranged with radial play, wherein the nut member (24) has a groove-like radial circumferential receptacle (40) in which the Rims of the opening are received in the spherical plate area, wherein the concrete shutter side arranged end of the screws nut member (24) is provided with an integral with the nut member

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Piles And Underground Anchors (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Joining Of Building Structures In Genera (AREA)

Description

Die Erfindung betrifft ein Schalungselement mit einer Schalhaut und einer Arretiervorrichtung für einen Ankerstab eines Ankersystems einer Betonwandschalung, wobei die Arretiervorrichtung ein Schraubenmutterelement zum Durchschrauben des Ankerstabs durch ein Schraubenmuttergewinde des Schraubenmutterelements aufweist.The invention relates to a formwork element with a formwork skin and a locking device for an anchor rod of an anchor system concrete wall formwork, wherein the locking device has a nut member for screwing through the anchor rod by a nut thread of the nut member.

Derartige Ankersysteme werden in der Schalungstechnik beim Betonieren von Stahlbetonbauten eingesetzt. Betonschalungselemente, oder kurz Schalungselemente, von Betonwandschalungen sind aus je einer Schalhaut und stützenden Elemente, z.B. Längsträger und Querriegel, aufgebaut. Die beiden Seiten einer Wand werden aus jeweils einem Betonschalungselement, d.h. einer Schalungshälfte, gebildet, welche durch Ankerstäbe zusammengehalten werden. Die Ankerstäbe werden durch Bohrungen in der Schalhaut hindurch gesteckt und an ihren Enden an den die Schalhaut stützenden Elementen so befestigt, dass die beim Betonieren auf die Ankerstäbe wirkende Zugkraft aufgenommen wird. Üblicherweise weisen die beiden Enden der Ankerstäbe Gewinde auf, auf welche Schraubenmuttern als Ankerfixierungen aufgeschraubt werden. Dadurch wird die wirksame Länge des Ankerstabs und damit die Stärke (Dicke) der zu betonierenden Wand festgelegt. Gleichzeitig wird der beim Betonieren vom flüssigen Beton auf die Schalhaut ausgeübte Druck über die Schraubenmuttern auf die Ankerstäbe abgeleitet. Die Ankerstäbe werden dabei auf Zug belastet. Zwischen den Schalhäuten werden Abstandshalter in das Volumen der zu betonierenden Wand eingebracht, welche die beim Betoniervorgang und beim Montieren der Ankerstäbe entstehenden Druckkräfte aufnehmen können, wodurch sichergestellt wird, dass diese Druckkräfte die Wandstärke nicht unerwünscht beeinflussen, d.h. vermindern.Such anchor systems are used in formwork technology in concreting reinforced concrete structures. Concrete formwork elements, or short formwork elements, of concrete wall formwork are each made of a formwork skin and supporting elements, e.g. Side member and cross bar, constructed. The two sides of a wall are each made up of a concrete formwork element, i. a formwork half, formed, which are held together by anchor rods. The anchor rods are inserted through holes in the formwork skin and attached at their ends to the formwork supporting the elements so that the force acting on the anchor rods during concreting tensile force is absorbed. Usually, the two ends of the anchor rods have threads on which nuts are screwed as Ankerfixierungen. As a result, the effective length of the anchor rod and thus the strength (thickness) of the wall to be concreted is determined. At the same time, the pressure exerted on the formwork by the liquid concrete during concreting is dissipated via the nuts on the tie rods. The tie rods are loaded on train. Spacers are inserted between the shell skins in the volume of the wall to be concreted, which can absorb the compressive forces arising during the concreting and mounting of the anchor rods, thereby ensuring that these compressive forces do not undesirably affect the wall thickness, i. Reduce.

Bei den bekannten Ankersystemen ergeben sich Schwierigkeiten bei der Durchführung des Ankerstabes beim Aufbau der Betonwandschalung, sobald die sich mit ihren Schalhäuten gegenüberstehenden, die auszuformende Betonwand abformenden Schalungselemente mit ihren Ankerdurchführungsbohrungen nicht ausreichend fluchtend gegenüberstehen.In the known anchor systems arise difficulties in the implementation of the anchor rod in the construction of the concrete wall formwork, as soon as facing with their Schalhäuten, auszuformende the concrete wall forming formwork elements with their anchor bushing holes are not sufficiently aligned.

Da der Ankerstab immer von außen, von der Rückseite eines ersten Schalungselements aus gesehen, durch die bereits aufgestellten Schalungselemente hindurch geführt wird, kann der Schalungsbauer, der den Ankerstab positioniert, die Ankerdurchführungsbohrung des zweiten Schalungselements nicht sehen. Zwar wird noch verhältnismäßig leicht die letztgenannte Ankerdurchführungsbohrung gefunden, jedoch steht bei schlecht fluchtenden Ankerdurchführungsbohrungen der Ankerstab dann schräg zur Schalhaut der Schalungselemente, wodurch das Finden des Gewindes einer auf der Rückseite des zweiten Schalungselements befestigten Arretiervorrichtung sehr erschwert wird. Weiter liegen bei einer derartigen Schrägstellung des Ankerstabes die Arretiervorrichtungen nicht mehr vollumfänglich bündig an den Schalungselementen an, was zu einer nur punktuellen Kraftübertragung bei einem Betoniervorgang der auftretenden Kräfte von der Betonwandschalung auf die Arretiervorrichtungen führt und diese stark beansprucht.Since the anchor rod is always viewed from the outside, viewed from the rear side of a first formwork element, through the already erected formwork elements, the formwork builder who positions the tie rod, the Ankerdurchführungsbohrung the second formwork element can not see. Although the latter armature lead-through bore is still relatively easy to find, the armature bar is then inclined to the formwork facing in the case of poorly aligned armature leadthrough holes, which makes it very difficult to locate the thread of a locking device fastened to the rear side of the second formwork element. Further, in such an inclined position of the anchor rod, the locking devices are no longer fully flush with the formwork elements, resulting in only a selective power transmission in a concreting of the forces occurring from the concrete wall formwork on the locking devices and this heavily loaded.

Eine Lösung des genannten Problems wird in der DE 10 2007 004 226 A1 vorgeschlagen, welches alle Merkmale der Präamble des Anspruchs 1 offenbart.A solution to the above problem is in the DE 10 2007 004 226 A1 proposed, which discloses all the features of the preamble of claim 1.

Auch hier ist eine Betonwandschalung mit einem ersten und einem zweiten jeweils eine Schalhaut aufweisenden Schalungselement und einem Ankersystem mit einem Ankerstab und Arretiervorrichtungen offenbart, wobei sich die Schalungselemente mit Vorderseiten ihrer Schalhäute gegenüberstehen. Der Ankerstab ist durch je eine Ankerdurchführungsbohrung in den Schalungselementen geführt. Weiter sind ringförmige Dichtungselement zum Abdichten der Ankerdurchführungsbohrungen in der Schalhäuten vorgesehen. Jede der Arretiervorrichtungen für den Ankerstab des Ankersystems der Betonwandschalung weist ein Schraubenmutterelement zum Durchschrauben des Ankerstabs durch ein Schraubenmuttergewinde des Schrauben-mutterelements, und eine Kalottenplatte, auf. Die Kalottenplatte ist mittels Befestigungsmitteln an einer Rückseite eines der Schalungselemente der Betonwandschalung befestigt. Die Kalottenplatte weist einen sphärisch ausgebildeten Plattenbereich mit einer Öffnung auf, in der das Schraubenmutterelement mit radialem Spiel angeordnet ist, wobei das Schraubenmutterelement eine nutartig radial umlaufende Aufnahme aufweist, in der die Ränder der Öffnung im sphärischen Plattenbereich aufgenommen sind. Jeweils ein Schraubenmutterelement jedes Ankersystems, das ankerstabspitzenseitig angeordnet ist, weist an seinem betonschalungsseitig angeordneten Ende eine mit dem Schraubenmuttergewinde des Schraubenmutterelements fluchtende, rohrförmige Führungseinrichtung auf, die dazu dient, dass das Auffinden der Einschrauböffnung des Schrauben-muttergewindes beim Einschrauben des Ankerstabes erleichtert wird.Again, a concrete wall formwork with a first and a second each having a formwork facing formwork element and an anchor system with an anchor rod and locking devices is disclosed, with the formwork elements face with front sides of their formwork skins. The anchor rod is guided by one anchor through hole in the formwork elements. Further annular sealing element are provided for sealing the armature feedthrough holes in the formwork skins. Each of the tie rods for the anchor rod of the anchor system of the concrete wall formwork has a nut member for screwing the anchor rod through Nut screw of the nut member, and a dome plate on. The dome plate is fastened by means of fasteners on a back of one of the formwork elements of the concrete wall formwork. The dome plate has a spherically shaped plate area with an opening in which the nut element is arranged with radial clearance, wherein the nut element has a groove-like radial circumferential receptacle in which the edges of the opening are received in the spherical plate area. In each case a nut element of each anchor system, which is arranged ankerstabspitzenseitig, has at its concrete shutter side arranged end aligned with the nut thread of the nut member, tubular guide means which serves to facilitate the finding of the screw-in of the nut thread when screwing the anchor rod.

Dabei tritt jedoch das Problem auf, dass durch die Schrägstellung des Anker-stabes Überbeanspruchungen des Dichtungselements auftreten, so dass beim Betonieren flüssiger Beton aus den undichten Stellen der Ankerdurchführungsbohrungen austreten kann.However, the problem arises that occur due to the inclination of the anchor rod overstressing of the sealing element, so that when concreting liquid concrete can escape from the leaks of the anchor bushing holes.

Aus der DE 16 84 261 A ist eine Vorrichtung zum Aufbau von Betonschalungen bekannt geworden, bei der auf zumindest einer Seite der Schalung ein Widerlager vorgesehen ist, das eine Abstützung für ein zu spannendes Element bildet.From the DE 16 84 261 A a device for the construction of concrete formwork has become known in which an abutment is provided on at least one side of the formwork, which forms a support for an element to be clamped.

Weiterhin offenbart die DE 34 05 976 A1 ein Ankersystem für eine Betonwandschalung. Das Ankersystem weist Ankermuttern auf, die jeweils mit einem Spannkörper versehen sind. Hierdurch können die in Schalelementen für Anker vorgesehene Öffnungen verhältnismäßig groß gewählt werden, wodurch das Setzen der Anker von außen erleichtert wird.Furthermore, the disclosure DE 34 05 976 A1 An anchor system for a concrete wall formwork. The anchor system has anchor nuts which are each provided with a clamping body. As a result, the openings provided in the formwork elements for anchor can be made relatively large, whereby the setting of the anchor is facilitated from the outside.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde eine Arretiervorrichtung für ein Ankersystem und eine Betonwandschalung bereitzustellen, welche Nachteile des Standes der Technik vermeiden, wobei die Dichtheit der Ankerdurchführungsbohrungen verbessert werden soll, durch die schräg gestellte Ankerstäbe hindurchgeführt sind.The invention is based on the object to provide a locking device for an anchor system and a concrete wall formwork, which avoid disadvantages of the prior art, the tightness of the armature feedthrough holes should be improved, are passed through the oblique tie rods.

Diese Aufgabe wird durch die Vorrichtungen des unabhängigen Anspruchs 1 gelöst. Die abhängigen Ansprüche stellen bevorzugte Ausführungsformen der Erfindung dar.This object is solved by the devices of independent claim 1. The dependent claims represent preferred embodiments of the invention.

Das erfindungsgemäße Schalungselement mit einer Schalhaut umfasst eine Arretiervorrichtung für einen Ankerstab eines Ankersystems einer Betonwandschalung.The formwork element according to the invention with a formwork skin comprises a locking device for an anchor rod of an anchor system of a concrete wall formwork.

Die Arretiervorrichtung weist ein ringförmiges Dichtungselement zum Ab-dichten einer Ankerdurchführungsbohrung in der Schalhaut, ein Schraubenmutterelement zum Einschrauben des Ankerstabs in ein Schraubenmuttergewinde des Schraubenmutterelements, und eine Kalottenplatte auf. Die Kalottenplatte ist mittels Befestigungsmitteln an einer Rückseite des Schalungselements der Betonwandschalung befestigbar und weist einen sphärisch ausgebildeten Plattenbereich mit einer Öffnung auf, in der das Schraubenmutterelement mit radialem Spiel angeordnet ist. Dabei weist das Schraubenmutterelement eine nutartig radial umlaufende Aufnahme auf, in der die Ränder der Öffnung im sphärischen Plattenbereich aufgenommen sind. Am betonschalungsseitig anzuordnenden Ende des Schraubenmutterelements ist eine mit dem Schraubenmuttergewinde des Schraubenmutterelements fluchtende, rohrförmige Führungseinrichtung vorgesehen. Erfindungsgemäß weist das Dichtungselement einen gummielastischen oder zähelastischen Innendichtring auf und das schalungselementseitig anzuordnende freie Ende der Führungseinrichtung ragt dichtend in den Innendichtring.The locking device comprises an annular sealing member for sealing off an anchor bushing hole in the formwork skin, a nut member for screwing the anchor rod into a nut thread of the nut member, and a dome plate. The dome plate can be fastened by means of fastening means on a rear side of the formwork element of the concrete wall formwork and has a spherically formed plate area with an opening in which the nut element is arranged with radial play. In this case, the nut member has a groove-like radial circumferential receptacle in which the edges of the opening are received in the spherical plate area. At the concrete shutter side to be arranged end of the nut member, a aligned with the nut thread of the nut member, tubular guide means is provided. According to the invention, the sealing element has a rubber-elastic or visco-elastic inner sealing ring and the shuttering element side to be arranged free end of the guide device projects sealingly into the inner sealing ring.

Bei Verwendung einer erfindungsgemäßen Arretiervorrichtung kann im Wesentlichen kein flüssiger Beton zwischen dem Ankerstab und dem Dichtungselement durch die Ankerdurchführungsbohrung austreten. Weiter wird die Möglichkeit einer Beschädigung des Dichtungsringes beim Einführen des Ankerstabes in die Führungseinrichtung vermindert. Auch die asymmetrische Druckbelastung des gummielastischen Innendichtringes bei nicht vollständig fluchtenden Ankerdurchführungsbohrungen wird vermindert, da durch die dichtend am Innendichtring anliegende Führungseinrichtung eine Belastungsverteilung der durch die Druckbelastung auftretenden Kräfte ermöglicht wird. Der Ankerstab selbst liegt nicht am Innendichtring an.When using a locking device according to the invention can substantially no liquid concrete between the anchor rod and the sealing element exit through the anchor bushing hole. Further, the possibility of damage to the sealing ring during insertion of the anchor rod is reduced in the guide device. Also, the asymmetric pressure load of the rubber-elastic inner sealing ring at not fully aligned armature lead-through holes is reduced, since a load distribution of the forces arising from the pressure load is made possible by the sealing means fitting to the inner sealing ring guide means. The anchor rod itself is not applied to the inner seal.

Das schalungs-elementseitig anzuordnende freie Ende der Führungseinrichtung schließt erfindungsgemäß mit einer schalhautseitig anzuordnendenThe shuttering element side to be arranged free end of the guide device closes according to the invention with a shell side to be arranged

Außenkante des Innendichtrings ab oder steht schalhautseitig über die Außenkante über. Dadurch wird insbesondere auch eine Verwendung eines besonders schmalen Innendichtrings, d.h. eines Innendichtringes mit geringer Materialstärke, ermöglicht, wodurch der Dichtring insgesamt eine hohe Elastizität aufweisen kann.Outer edge of the inner seal from or shell side over the outer edge over. As a result, in particular, a use of a particularly narrow inner sealing ring, i. an inner sealing ring with low material thickness, allows, whereby the sealing ring can have a high overall elasticity.

Besonders bevorzugt weist das Dichtungselement eine Metallhülse auf, wobei der Innendichtring in der Metallhülse dichtend angeordnet ist. Die Metallhülse verhindert Beschädigungen des Innendichtringes und schützt den Innendichtring in eingebrachten Ankerdurchführungsbohrungen.Particularly preferably, the sealing element has a metal sleeve, wherein the inner sealing ring is arranged sealingly in the metal sleeve. The metal sleeve prevents damage to the inner sealing ring and protects the inner sealing ring in introduced anchor bushing holes.

Sehr vorteilhaft weist die Metallhülse eine schalhautseitig anzuordnende radial umlaufende und sich radial nach außen erstreckende Verbreiterung auf, wodurch ein Anschlag für eine definierte Positionierung des Dichtungselements in einer Ankerdurchführungsbohrung ausgebildet wird.Very advantageously, the metal sleeve on a shell side to be arranged radially encircling and radially outwardly extending broadening, whereby a stop for a defined positioning of the sealing element is formed in an armature feedthrough bore.

Das Dichtungselement kann einen bevorzugt aus einem starren Kunststoff gefertigten Außenring aufweisen, wobei der Außenring auf die Metallhülse aufgesteckt oder aufgeschraubt ist. Dadurch wird auch eine hinsichtlich der Schalhaut, in deren Ankerdurchführungsbohrung das Dichtungselement eingesetzt ist, rückseitige Abdichtung ermöglicht. Weiter kann der Außendichtring zum rückseitigen Festschrauben verwendet werden.The sealing element may have a preferably made of a rigid plastic outer ring, wherein the outer ring is plugged or screwed onto the metal sleeve. As a result, it is also possible with respect to the formwork skin, in whose armature feedthrough bore the sealing element is used, rear-side sealing. Furthermore, the outer sealing ring can be used for back-side screwing.

Besonders bevorzugt kann das schalungselementseitig anzuordnende freie Ende der Führungseinrichtung an einer radial umlaufenden und verbreiterten Dichtlippe des Innendichtrings anliegen. Dabei kann das freie Ende der Führungseinrichtung als Anschlag für einen einzuschraubenden Ankerstab dienen.Particularly preferably, the shuttering element side to be arranged free end of the guide means abut against a radially encircling and widened sealing lip of the inner sealing ring. In this case, the free end of the guide device can serve as a stop for a tie rod to be screwed.

Besonders große Auslenkungen des Schraubenmutterelements werden ermöglicht, wenn der sphärisch ausgebildete Plattenbereich einen Kugelschalenbereich mit einem schalungselementseitigen Kugelmittelpunkt ausbildet, wobei Oberflächenbereiche der umlaufenden Aufnahme des Schraubenmutterelements, die an dem sphärisch ausgebildeten Piattenbereich anliegen, komplementär zu dem sphärisch ausgebildeten Plattenbereich ausgebildet sind.Particularly large deflections of the nut element are made possible when the spherically formed plate region forms a spherical shell region with a shell element side ball center, wherein surface areas of the circumferential recording of the nut element, which bear against the spherically formed Piattebereich, are formed complementary to the spherical plate region.

Vorteilhaft ist am Schraubenmutterelement eine Verdrehsicherung vorgesehen. Diese Verdrehsicherung kann z.B. durch Ausbilden der aufeinander liegenden Oberflächen des Schraubenmutterelements und der Kalottenplatte mit einer hohen Verdrehreibung z.B. durch eine Noppenoberfläche erreicht werden. Bei Verwendung einer derartigen Arretiervorrichtung kann der Ankerstab, z.B. von der Rückseite des ersten Schalungselements in die Arretiervorrichtung, die an der Rückseite des zweiten Schalungselements befestigt ist, eingeschraubt werden, ohne dass ein Schalungsbauer auf der Rückseite des zweiten Schalungselements die Arretiervorrichtung während des Einschraubens, zum Verhindern eines Mitdrehens des Schraubenmutterelements mit dem Ankerstab, bedienen muss. Eine derartige Arretiervorrichtung eignet sich also z.B. zum Einsatz an unzugänglichen Betonschalungsbereichen. Bevorzugt weist die Verdrehsicherung ein Anschlagelement auf, wobei durch das Anschlag-element eine Verdrehung des Schraubenmutterelements durch Anschlagen an einem, bevorzugt von den Befestigungsmitteln ausgebildeten, Anschlag verhinderbar ist. Dadurch ist ein besonders einfacher und sicherer Verdrehungsschutz gewährleistet. Ist das Anschlagelement flügelartig ausgebildet, so kann auch ein von dem Schraubenmutterelement weiter entfernt angeordneter Anschlag das Verdrehen verhindern. Beispielsweise ist ein Anschlagelement in DE 10 2007 004 226 B3 beschrieben.Advantageously, an anti-rotation is provided on the nut member. This rotation can be achieved for example by forming the superimposed surfaces of the nut member and the dome plate with a high Verdrehreibung eg by a nub surface. When using such a locking device For example, the anchor rod, for example, from the back of the first formwork element in the locking device, which is attached to the back of the second formwork element, are screwed without a formwork builder on the back of the second formwork element, the locking device during screwing, to prevent co-rotation of the nut member with the anchor rod, must serve. Such a locking device is thus suitable, for example, for use in inaccessible concrete formwork areas. Preferably, the rotation on a stop element, wherein by the stopper element, a rotation of the nut member by abutment on a, preferably formed by the fastening means, stop can be prevented. This ensures a particularly simple and secure anti-rotation protection. If the abutment element is of a wing-like design, a stop arranged further away from the nut element can also prevent twisting. For example, a stop element in DE 10 2007 004 226 B3 described.

Eine weitere erfindungsgemäße Ausgestaltung der Arretiervorrichtungen zur Befestigung an dem zuerst aufzustellenden Schalungselement könnte darin bestehen, dass die Arretiervorrichtung permanent an den Schalungselementen befestigt sind. Dies hätte den Vorteil, dass man am zuerst aufgestellten Schalungselement keine Vormontierung vornehmen muss. Eine erfindungsgemäße Betonwandschalung weist ein erstes und ein zweites jeweils eine Schalhaut aufweisendes Schalungselement und ein Ankersystem mit einem Ankerstab auf, wobei das zweite Schlaungselement erfindungsgemäß ausgebildet ist, und wobei sich die Schalungselemente mit Vorderseiten ihrer Schalhäute gegenüberstehen. Die Arretiervorrichtung ist im Bereich einer Ankerdurchführungsbohrung in der Schalhaut des zweiten Schalungselements rückseitig, bevorzugt mittels Befestigungsmitteln befestigt, angeordnet, und das Dichtungselement der Arretiervorrichtung ist zum Abdichten der Ankerdurchführungsbohrung in der Schalhaut des zweiten Schalungselements vorgesehen. Dabei ist der Ankerstab, von der Rückseite der Schalhaut des ersten Schalungselements kommend, durch eine Ankerdurchführungsbohrung in der Schalhaut des ersten Schalungselements und durch das Dichtungselement hindurchgeführt und in das Schraubenmuttergewinde des Schraubenmutterelements der erfindungsgemäßen Arretiervorrichtung einschraubbar bzw. eingeschraubt.Another embodiment of the locking devices according to the invention for attachment to the formwork element to be erected first could consist in that the locking device are permanently attached to the formwork elements. This would have the advantage that you must make no premounting on the first established formwork element. A concrete wall formwork according to the invention comprises a first and a second formwork each having a formwork facing element and an anchor system with an anchor rod, wherein the second Schlaungselement is formed according to the invention, and wherein the formwork elements with front sides of their Schalhäute face. The locking device is in the region of an anchor bushing hole in the formwork skin of the second formwork element rear side, preferably fastened by fastening means, arranged, and the sealing element of the locking device is provided for sealing the armature feed-through bore in the formwork skin of the second formwork element. In this case, the anchor rod, coming from the back of the formwork of the first formwork element, passed through a Ankerdurchführungsbohrung in the formwork of the first formwork element and through the sealing element and screwed or screwed into the nut screw of the nut element of the locking device according to the invention.

Das freie Ende der Führungseinrichtung ist dabei schalungselementseitig angeordnet und mit dem Innendichtring dichtend in das Dichtelement eingesteckt, so dass das freie Ende der Führungseinrichtung über das Dichtungselement an der Schalhaut definiert positioniert ist.The free end of the guide means is arranged schalungselementseitig and sealingly inserted with the inner sealing ring in the sealing element, so that the free end of the guide means is positioned defined on the sealing element on the formwork skin.

Bevorzugt weist der Ankerstab eine abgerundete Ankerstabspitze auf, wodurch das Auffinden der Einschrauböffnung am freien Ende der Führungseinrichtung erleichtert wird. Der Ankerstab weist vorteilhaft ein erstes Schraubengewinde im ankerstabspitzenabgewandten Endbereich des Ankerstabes und ein zweites Schraubengewinde im ankerstabspitzennahen Endbereich des Ankerstabes auf. In dem dazwischenliegenden Bereich hat der Ankerstab vorteilhaft eine glatte Oberfläche, was das Anhaften von Beton erschwert.Preferably, the anchor rod on a rounded anchor rod tip, whereby the finding of the screw-in opening at the free end of the guide device is facilitated. The anchor rod advantageously has a first screw thread in the end region of the anchor rod facing away from the anchor rod and a second screw thread in the end region of the anchor rod near the anchor rod tip. In the intermediate region, the anchor rod advantageously has a smooth surface, which makes the adhesion of concrete more difficult.

Sehr vorteilhaft verjüngt sich der Ankerstab zwischen dem ersten und dem zweiten Schraubengewinde in Richtung der Ankerstabspitze konisch, so dass das Entfernen des Ankerstabes aus einer gehärteten Betonwand erleichtert wird. Die Gewindeform des ersten Schraubengewindes kann sich von der Gewindeform des zweiten Schraubengewindes unterscheiden, so dass das ankerspitzennahe Gewinde sehr grob ausgeführt sein kann, wodurch das Auffinden des Schraubenmuttergewindes des Schraubenmutterelementes erleichtert wird. Der erfindungsgemäße Ankerstab weist im Spitzenbereich einen Anschlag auf, der im eingeschraubten Zustand in der Führungseinrichtung am freien Ende der Führungseinrichtung anliegt. Vorgegebene Wanddicken lassen sich erleichtert einstellen und Ungenauigkeiten hinsichtlich der Stärke einer zu betonierenden Wand werden vermieden.Very advantageously, the anchor rod tapers conically between the first and the second screw thread in the direction of the anchor rod tip, so that the removal of the anchor rod from a hardened concrete wall is facilitated. The thread form of the first screw thread may differ from the thread form of the second screw thread, so that the anchor tip near thread can be made very coarse, whereby the finding of the nut thread of the nut member is facilitated. The anchor rod according to the invention has in the tip region on a stop which rests in the screwed state in the guide means at the free end of the guide means. Predetermined wall thicknesses can be adjusted easily and inaccuracies in the strength of a wall to be concreted are avoided.

Sehr vorteilhaft schließt das schalungselementseitig angeordnete freie Ende der Führungseinrichtung der Arretiervorrichtung mit der schalungselementseitig angeordneten Außenkante des Innendichtrings des Dichtungselements ab oder steht schalungselementseitig über die Außenkante über. Dabei schließt die schalungselementseitig angeordnete Außenkante des Innendichtrings des Dichtungselements mit der Vorderseite der Schalhaut des zweiten Schalungselements im Wesentlichen ab. Es wird so ein Kantenschutz der Ankerdurchführungsbohrung erreicht und auftretende asymmetrische Kräfte auf den Innendichtring werden optimal auf die Innendichtringbreite verteilt. Dabei liegt ausschließlich die Führungseinrichtung am Innendichtring an.Very advantageously closes the shuttering element side arranged free end of the guide device of the locking device with the shuttering element side arranged outer edge of the inner sealing ring of the sealing element from or is Schalelementelementseitig on the outer edge over. In the process, the outer edge of the inner sealing ring of the sealing element arranged on the shell element side substantially ends with the front side of the formwork skin of the second formwork element. As an edge protection of the armature feedthrough bore is achieved and occurring asymmetric forces on the inner seal are optimally distributed to the inner seal ring width. In this case, only the guide device rests against the inner sealing ring.

Besonders bevorzugt ist ein weiteres mit dem Dichtungselement der Arretiervorrichtung identisches, insbesondere einen identischen Innendurchmesser aufweisendes Dichtungselement zum Abdichten der Ankerdurchführungsbohrung in der Schalhaut des ersten Schalungselements vorgesehen. Dabei ist der Ankerstab durch das weitere Dichtungselement durchgeführt. Die Form eines sich konisch verjüngenden Ankerstabes ist dabei derart ausgelegt, dass der größte Durchmesser des konischen Bereiches derart an das Dichtungselement angepasst ist, dass er dichtend in den Innendichtring des weiteren Dichtungselementes eingeschoben werden kann.Particularly preferred is another with the sealing element of the locking device identical, in particular an identical inner diameter exhibiting sealing element for sealing the anchor passage bore provided in the formwork of the first formwork element. In this case, the anchor rod is performed by the further sealing element. The shape of a conically tapered anchor rod is designed such that the largest diameter of the conical region is adapted to the sealing element, that it can be inserted sealingly into the inner sealing ring of the further sealing element.

Die Ausgestaltung des Ankersystems hat den zusätzlichen Vorteil, dass auf beiden Seiten der Schalungselemente gleiche Dichtungselemente eingesetzt werden können. Dies deshalb, weil auf einer Seite der Ankerstab und auf der anderen Seite das Führungselement im Bereich des Dichtungselements nahezu den gleichen Außendurchmesser aufweisen.The design of the anchor system has the additional advantage that the same sealing elements can be used on both sides of the formwork elements. This is because on one side of the anchor rod and on the other side, the guide element in the region of the sealing element have almost the same outer diameter.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnungen näher erläutert.The invention will be explained in more detail using an exemplary embodiment with reference to the drawings.

Die Figur 1 zeigt ein erfindungsgemäßes Schalungselement einer Betonwandschalung im Ausschnitt im Bereich von sich gegenüberliegenden nicht fluchtenden Ankerlöchern.The FIG. 1 shows a formwork element according to the invention a concrete wall formwork in the cutout in the region of opposite not aligned anchor holes.

Die Figuren 2a und 2b zeigen ein erfindungsgemäßes Schalungselement mit der Arretiervorrichtung in verschiedenen Ausschnitten in an einer Rückseite eines Betonschalungselementes befestigter Position als Bildausschnitt der Figur 1, wobei in Figur 2b ein vergrößerter Ausschnitt aus Figur 2a gezeigt ist.The FIGS. 2a and 2 B show a formwork element according to the invention with the locking device in different sections in attached to a rear side of a concrete formwork element position as a picture detail of FIG. 1 , where in FIG. 2b an enlarged section FIG. 2a is shown.

Die Figur 3 zeigt eine vergrößerte Darstellung der in Figur 1 links dargestellten Arretiervorrichtung.The FIG. 3 shows an enlarged view of in FIG. 1 Locking device shown on the left.

Die Figuren der Zeichnungen zeigen den erfindungsgemäßen Gegenstand stark schematisiert und sind nicht maßstäblich zu verstehen. Die einzelnen Bestandteile des erfindungsgemäßen Gegenstandes sind so dargestellt, dass ihr Aufbau gut gezeigt werden kann.The figures of the drawings show the subject matter of the invention in a highly schematic manner and are not to scale. The individual components of the article according to the invention are shown so that their structure can be well shown.

In den Figuren 2a, 2b und 3 sind jeweils Detailansichten der in Figur 1 dargestellten Betonwandschalung gezeigt, wobei jeweils ein Schnittbild auf Höhe der Längsachse eines Ankerstabes 2 des Ankersystems, das ein erstes und ein zweites Schalungselement 5,6 der Betonwandschalung miteinander verbindet, dargestellt ist. Die Schalungselemente 5,6 weisen jeweils eine Schalhaut 7 sowie Längsriegel auf. Evtl. vorhandene Querriegel sind wegen des gewählten Bildausschnittes nicht dargestellt. Auf Längs- und Querriegel ist die Schalhaut 7 üblicherweise aufgebracht, insbesondere aufgenietet. Der Ankerstab 2 ist unter einem Winkel α schräg zu den Oberflächen der Schalhäute 7 ausgerichtet.In the FIGS. 2a . 2 B and 3 are each detail views of in FIG. 1 shown concrete wall formwork, in each case a sectional view at the level of the longitudinal axis of an anchor rod 2 of the anchor system, which connects a first and a second formwork element 5.6 of the concrete wall formwork together, is shown. The formwork elements 5,6 each have a formwork skin 7 and longitudinal bars. Possibly. existing crossbars are not shown because of the selected image detail. On longitudinal and transverse bar the formwork skin 7 is usually applied, in particular riveted. The anchor rod 2 is aligned at an angle α obliquely to the surfaces of the Schalhäute 7.

Die geschnittene Darstellung in Fig. 1 verläuft jeweils durch einen Längsriegel, so dass der jeweilige Längsriegel lediglich durch die Wandung 11 des Stahlprofils, aus dem dieser hergestellt ist, dargestellt ist. Die Schalungselemente 5,6 stehen sich zur Ausformung einer zu betonierenden Betonwand mit den Vorderseiten ihrer Schalhäute 7 gegenüber. Im Bereich jeweils eines Längsriegels ist in den Schalhäuten 7 jeweils eine Ankerdurchführungsbohrung 13 vorgesehen. Der Ankerstab 2 ist von der Rückseite des ersten Schalungselements 5 aus durch die Ankerdurchführungsbohrungen 13 und die Längsriegel, in deren Bereich die Ankerdurchführungsbohrungen 13 angeordnet sind, hindurchgeführt. Dabei sind in den Ankerdurchführungsbohrungen 13 ringförmige Dichtungselemente 15 angeordnet bzw. eingesteckt, die den Ankerstab 2 jeweils derart umfassen, dass beim Betonieren im Wesentlichen keine Flüssigkeit durch die Ankerdurchführungsbohrungen 13 austreten kann. Auf der Rückseite der Schalungselemente 5,6 ist jeweils eine Arretiervorrichtung 20,21 im Bereich der Ankerdurchführungsbohrungen 13 positioniert. Die Arretiervorrichtungen 20,21 weisen jeweils ein Schraubenmutterelement 23,24 mit einem Schraubenmuttergewinde, d.h. eine Bohrung mit einem Innengewinde, auf, durch das der Ankerstab 2 hindurchgeschraubt ist oder wird. Weiter weisen die Arretiervorrichtungen 20,21 jeweils eine Kalottenplatte 26,27 mit Befestigungsmitteln 30 zur Befestigung der Kalottenplatte 26,27 und damit der Arretiervorrichtung 20,21 an der Rückseite jeweils eines der Schalungselemente 5,6 auf. Die Befestigungsmittel 30 sind durch eine Bohrung im Randbereich der Kalottenplatte 26,27, ausgebildet, durch die ein Schraubbolzen 32 in ein Schraubloch am jeweiligen Längsriegel eingeschraubt werden kann oder eingeschraubt ist. Als technisch gleichwertige Befestigungsmittel 30 sind auch Klammern, Bajonett-Verschlüsse und ähnliche Haltemittel vorstellbar. Die Kalottenplatte 26,27 ist aus einer Stahlplatte gefertigt. Sie weist einen sphärisch ausgebildeten Plattenbereich, d.h. einen als Kugelschalenbereich ausgeformten Plattenbereich auf, in dem eine Öffnung vorgesehen ist. Der Kugelschalenbereich bildet jeweils einen schalungselementseitigen Kugelmittelpunkt aus. D.h., die Krümmung des Kugelschalenbereichs ist so orientiert, dass deren Mittelpunkt im Bereich des Schalungselementes 5,6 liegt an dem die zugehörige Arretiervorrichtung 20,21 befestigt ist. Bevorzugt liegt dieser Mittelpunkt in der Schalhautebene.The cut representation in Fig. 1 runs in each case by a longitudinal bar, so that the respective longitudinal bar is shown only by the wall 11 of the steel profile from which this is made. The formwork elements 5.6 are opposite to the formation of a concrete wall to be concreted with the front sides of their Schalhäute 7. In the area of each one of the longitudinal bars, an anchor leadthrough hole 13 is provided in each of the shuttering skins 7. The anchor rod 2 is of the Rear side of the first formwork element 5 from passing through the armature feedthrough holes 13 and the longitudinal latch, in the region of the armature feedthrough holes 13 are arranged, passed. In this case, annular sealing elements 15 are arranged or inserted in the armature lead-through bores 13, which each comprise the anchor rod 2 in such a way that substantially no liquid can escape through the armature leadthrough holes 13 during concreting. On the back of the formwork elements 5.6 is in each case a locking device 20,21 positioned in the region of the armature feedthrough holes 13. The locking devices 20,21 each have a nut member 23,24 with a nut thread, ie a bore with an internal thread, through which the anchor rod 2 is screwed or is. Next, the locking devices 20,21 each have a dome plate 26,27 with fastening means 30 for fastening the dome plate 26,27 and thus the locking device 20,21 on the back of each one of the formwork elements 5.6. The fastening means 30 are formed by a bore in the edge region of the dome plate 26,27, through which a screw bolt 32 can be screwed into a screw hole on the respective longitudinal latch or is screwed. As a technically equivalent fastener 30 and brackets, bayonet locks and similar retaining means are conceivable. The dome plate 26,27 is made of a steel plate. It has a spherically formed plate region, ie a plate region shaped as a spherical shell region, in which an opening is provided. The spherical shell region in each case forms a shell element-side ball center. That is, the curvature of the spherical shell region is oriented so that its center in the region of the formwork element 5.6 is located on the associated locking device 20,21 is attached. Preferably, this center lies in the Schalhautebene.

Die konkave Oberfläche der Kalottenplatte 26,27 ist in Richtung der Schalhaut 7 des jeweiligen Schalungselements 5,6 mit umlaufend radialem Spiel angeordnet. In der Öffnung ist das Schraubenmutterelement 23,24 der jeweiligen Arretiervorrichtung 20,21 positioniert. An den Schraubenmuttereiementen 23,24 ist jeweils eine radial umlaufende Nut vorgesehen, die eine Aufnahme 40 ausbildet, in der die Ränder der Öffnung im sphärischen Plattenbereich der zugehörigen Kalottenplatte 26,27 aufgenommen sind. Die Aufnahme 40 hat eine dem sphärischen Plattenbereich entsprechende Ausformung, so dass innerhalb des radialen Spiels eine vollumfängliche Auslenkung des Schraubenmutterelements 23,24 auf der Kalottenplatte 26,27, von der Kalottenplatte 26,27 geführt, möglich ist. Die Nut kann z.B. dadurch ausgebildet werden, dass ein die betonschalungsseitige Wand der Nut ausbildender Ring 41 (Fig. 2a) auf einen rohrförmigen Bereich eines als Kalottenmutter ausgeformten Teils des Schraubenmutterelements 23,24 aufgesteckt oder aufgeschraubt ist.The concave surface of the dome plate 26,27 is arranged in the direction of the formwork skin 7 of the respective formwork element 5,6 with circumferential radial play. In the opening, the nut member 23,24 of the respective locking device 20,21 is positioned. At the Schraubenmuttegerementen 23,24 respectively a radially encircling groove is provided which forms a receptacle 40 in which the edges of the opening in the spherical plate area of the associated dome plate 26,27 are accommodated. The receptacle 40 has a shape corresponding to the spherical plate area, so that within the radial play a full deflection of the nut member 23,24 on the dome plate 26,27, out of the dome plate 26,27, is possible. The groove can be formed, for example, by forming a ring 41 (FIG. 3) forming the concrete shutter side wall of the groove. Fig. 2a ) is slipped or screwed onto a tubular portion of a part of the nut member 23, 24 which is formed as a dome nut.

An der am zweiten Schalungselement 6 positionierten Arretiervorrichtung 21 ist am betonschaiungsseitig angeordneten Ende des Schraubenmutterelements 24 eine mit dem Schraubenmuttergewinde des Schraubenmutterelements 24 fluchtende, rohrförmige Führungseinrichtung 45 vorgesehen. Dabei handelt es sich z.B. um einen hülsenartigen Fortsatz, der am Schraubenmutterelement 24 ausgebildet ist. Das Schraubengewinde des Schraubenmutterelements 24 kann sich ganz oder teilweise innerhalb des Fortsatzes fortsetzen. Das Schraubenmutterelement 24 ist dabei zweiteilig ausgeführt. Es besteht aus dem hülsenartigen Fortsatz, der einstückig mit der Führungseinrichtung 45 ausgeführt ist und in dem sich das Schraubenmuttergewinde befindet, und einer z.B. mit einem Splint gesicherten darauf aufgeschraubten oder aufgesteckten Verdrehsicherung 60. Die Verdrehsicherung 60 weist radial vom Schraubenmutterelement abstehende Flügelelemente auf, so dass auch ein weiter vom Schraubenmutterelement 24 entfernter Anschlag ein Mitdrehen des Schraubenmutterelements 24 beim Einschrauben des Ankerstabes 2 verhindern kann.At the second shuttering element 6 positioned on the locking device 21 is arranged on Betonschaiungsseitig arranged end of the nut member 24 with a screw thread of the nut member 24 aligned tubular guide means 45. This is, for example, a sleeve-like extension which is formed on the nut member 24. The screw thread of the nut member 24 may continue wholly or partially within the extension. The nut element 24 is designed in two parts. It consists of the sleeve-like extension, which is integral with the guide means 45 and in which the nut thread is, and a secured for example with a split pin screwed or plugged thereto anti-rotation device 60. The anti-rotation device 60 has radially projecting from the nut member wing elements, so that Also, a further remote from the nut member 24 stop a co-rotation of the nut member 24 when screwing the anchor rod 2 can prevent.

Wie insbesondere in der Detailansicht der Figur 2b gut zu erkennen ist, weisen die Dichtungselemente 15 einen gummielastischen Innendichtring 46 mit einer verbreiterten Dichtlippe 46' und eine Metallhülse 47 auf, wobei der Innendichtring 46 in der Metallhülse 47 dichtend angeordnet ist. Das schalungselementseitig angeordnete freie Ende der Führungseinrichtung 45 ist mit dem Innendichtring 46 dichtend in das Dichtelement 15 eingesteckt, das in der Ankerdurchführungsbohrung 13 der Schalhaut 7 angeordnet ist, an der die erfindungsgemäße Arretiervorrichtung 21 befestigt ist. Die Metallhülse 47 ist mit einer schalhautseitig angeordneten radial umlaufenden und sich radial nach außen erstreckenden Verbreiterung 49 versehen, die als Positionierhilfe die Einstecktiefe der Dichtungselemente 15 in die Ankerdurchführungsbohrungen 13 festlegt und einen Kantenschutz ausbildet.As in particular in the detailed view of FIG. 2b can be clearly seen, the sealing elements 15 a rubber-elastic inner sealing ring 46 with a widened sealing lip 46 'and a metal sleeve 47, wherein the inner sealing ring 46 is arranged sealingly in the metal sleeve 47. The shuttering element side arranged free end of the guide means 45 is sealingly inserted with the inner sealing ring 46 in the sealing element 15, which is arranged in the armature feedthrough bore 13 of the formwork skin 7, on which the locking device 21 according to the invention is attached. The metal sleeve 47 is provided with a shell-side arranged radially encircling and radially outwardly extending widening 49 which defines the insertion depth of the sealing elements 15 in the armature feedthrough holes 13 and forms an edge protector as a positioning aid.

Die Führungseinrichtung 45 ist so weit in das zugehörige Dichtungselement 15 eingesteckt, dass sie über die Außenoberfläche der Schalhaut 7 geringfügig und über eine schalhautseitig angeordnete, wulstartig verbreiterte Außenkante des Innendichtrings 46 hinausragt. Der überstehende, vorstehende Bereich ist als freies Ende 51 der Führungseinrichtung 45 ausgeführt. Ebenso stehen das freie Ende 51 der Führungseinrichtung 45 und die Verbreiterung 49 der Metallhülse 47 geringfügig über die Außenoberfläche der Schalhaut 7 vor.The guide device 45 is inserted so far into the associated sealing element 15 that it protrudes slightly beyond the outer surface of the formwork skin 7 and over a shell side arranged, bead-like widened outer edge of the inner sealing ring 46. The supernumerary, protruding portion is designed as a free end 51 of the guide device 45. Likewise, the free end 51 of the guide means 45 and the widening 49 of the metal sleeve 47 project slightly beyond the outer surface of the formwork skin 7.

Die Dichtungselemente 15 weisen einen aus einem starren Kunststoff gefertigten Außenring 48 auf, der von der Rückseite der Schalhaut 7 aus auf die Metallhülse 47 aufgeschraubt ist, wodurch neben der zusätzlichen rückseitigen Abdichtung der Ankerdurchführungsbohrungen 13 eine Lagefixierung der Dichtungselemente 15 erreicht wird.The sealing elements 15 have a made of a rigid plastic outer ring 48 which is screwed from the back of the formwork skin 7 on the metal sleeve 47, whereby in addition to the additional rear seal of the armature feedthrough holes 13, a positional fixation of the sealing elements 15 is achieved.

Der Ankerstab 2, der durch das Dichtelement 15 mit dessen Spitze 50 hindurchgeführt ist, ist unmittelbar in die Führungseinrichtung 45 eingeführt, die an der Verdrehsicherung 60 befestigt ist. Die Verdrehsicherung 60 ist als Kalottenmutter ausgebildet. Somit liegt der Drehpunkt (Kreismittelpunkt), um den sich die Kalottenmutter (Führungseinrichtung 45, Verdrehsicherung 60) beim Einschieben des Ankerstabes 2 verschwenken, auslenken bzw. verschieben lässt, im Bereich der Ebene der Schalhaut 7.The anchor rod 2, which is passed through the sealing element 15 with the tip 50 is inserted directly into the guide means 45, which is secured to the anti-rotation device 60. The anti-rotation device 60 is designed as a dome nut. Thus, the pivot point (circle center), by which the cap nut (guide device 45, anti-rotation device 60) can pivot, displace or displace upon insertion of the anchor rod 2, lies in the region of the plane of the formwork skin 7.

Weiter ist an den Schraubenmutterelementen 24 der Arretiervorrichtung 21, die an den Rückseiten der zweiten Schalungselemente 6, also jener Schalungselemente 6, durch die die Ankerstäbe 2 von der Vorderseite aus, also von der Schalhaut 7 aus, eingeführt sind, jeweils eine Verdrehsicherung 60 vorgesehen. Diese Verdrehsicherungen 60 sind derart ausgebildet, dass ein Außenbereich der Schraubenmutterelemente 24 beim Verdrehen des jeweiligen Schraubenmutterelements 24 an einen, z.B. von den Befestigungsmitteln 30 der zugehörigen Kalottenplatte 27 gebildeten Anschlag anstoßen, so dass sich das Schraubenmutterelement 24 nicht weiter verdrehen kann.Next is on the nut members 24 of the locking device 21, which are on the backs of the second formwork elements 6, ie those formwork elements 6, through which the anchor rods 2 from the front, ie of the formwork skin 7, are introduced, in each case an anti-rotation device 60 is provided. These anti-rotation devices 60 are designed such that an outer region of the screw nut elements 24 during rotation of the respective screw nut element 24 to one, for example, by the fastening means 30 of the associated dome plate 27 formed Abut stop, so that the nut member 24 can not rotate further.

Der Ankerstab 2 ist in den Figuren vollständig eingeschraubt. Dazu weist das Schraubengewinde 70 des Ankerstabes 2 im Bereich der Spitze 50 des Ankerstabes 2 einen geringeren Durchmesser als der restliche Ankerstab 2 auf, wodurch am Übergang des Schraubengewindes 70 zum restlichen Ankerstab 2 ein Schraubanschlag 52 ausgebildet ist. Mit diesem Schraubanschlag 52 stößt der vollständig eingeschraubte Ankerstab 2 an das freie Ende 51 der Führungseinrichtung 45 an.The anchor rod 2 is completely screwed in the figures. For this purpose, the screw thread 70 of the anchor rod 2 in the region of the tip 50 of the anchor rod 2 has a smaller diameter than the remaining anchor rod 2, whereby at the transition of the screw thread 70 to the remaining anchor rod 2, a screw 52 is formed. With this screw 52 abuts the fully screwed anchor rod 2 to the free end 51 of the guide device 45.

Die Einschraubtiefe des Schraubengewindes 70 im Bereich der Spitze 50 des Ankerstabes 2 in das Schraubenmutterelement 24 der zugehörigen Arretiervorrichtung 21 ist damit definiert vorgegeben. Der Durchmesser des Ankerstabes 2 im Bereich des Schraubengewindes 70 ist über die Länge des Gewindes gesehen gleich (zylindrischer Gewindeabschnitt).The screw-in depth of the screw thread 70 in the region of the tip 50 of the anchor rod 2 in the nut member 24 of the associated locking device 21 is defined so defined. The diameter of the anchor rod 2 in the region of the screw thread 70 is the same over the length of the thread (cylindrical threaded portion).

Das Schraubenmuttergewinde der an der Rückseite des ersten Schalungselements 5 positionierten Arretiervorrichtung 20, von der aus der Ankerstab 2 eingeführt wird, nimmt einen im Durchmesser größeren Ankerstab auf als das Schraubenmuttergewinde der Arretiervorrichtung 21 auf der Rückseite des zweiten Schalungselements 6. Die dargestellten Ankerstäbe 2 weisen ferner an deren von der Spitze 50 des jeweiligen Ankerstabes abgewandten Endbereichen, auf die die an der Rückseite des ersten Schalungselements 5 befestigten Arretiervorrichtungen 20 aufgeschraubt sind, Splintlöcher 75 zur Durchführung von Sicherungssplinten auf. Mittels der Anordnung dieser Splintlöcher 75 kann die Wandstärke der zu betonierenden Wand festgelegt werden. Die Ankerstäbe 2 sind über ihren gesamten Verlauf, ausgenommen der beidenends ausgebildeten Gewindeabschnitten, konisch verlaufend ausgebildet.The nut thread of the locking device 20 positioned at the rear side of the first formwork element 5 from which the anchor rod 2 is inserted accommodates a larger anchor rod than the screw nut thread of the locking device 21 on the rear side of the second formwork element 6. The illustrated anchor rods 2 also have at their end regions facing away from the tip 50 of the respective anchor rod, onto which the locking devices 20 fastened to the rear side of the first shuttering element 5 are screwed, split-pin holes 75 for the passage of securing splines. By means of the arrangement of these pinholes 75, the wall thickness of the wall to be concreted can be determined. The anchor rods 2 are over their entire Course, except for the two ends formed threaded sections, tapered design.

Um auch Kippkräfte aus dem Betoniervorgang auf die Schalungselemente 5,6, die zu einer Verringerung der Wandstärke der zu betonierenden Wand führen würden, durch das dargestellte Ankersystem aufnehmen zu können, ist in Figur 1 noch eine Befestigung der Kalottenplatten 26,27 an den Rückseiten der Schalungselemente 5,6 vorgesehen. Letztere Befestigung ist in den Figuren mittels Schraubbolzen 32 mit angeformten Ringen vorgenommen. Der Ankerstab 2 hat in seinem zwischen den Schalhäuten 7 zu positionierenden Bereich eine sich in Richtung der Ankerspitze 50 konisch verjüngende Ausformung, wodurch der Ankerstab 2, insbesondere wenn dieser vor dessen Applikation an der Betonwandschalung behandelt bzw. eingeölt wurde, nach Aushärten der betonierten Betonwand wieder erleichtert entfernbar ist.In order to be able to absorb tilting forces from the concreting process on the formwork elements 5, 6, which would lead to a reduction in the wall thickness of the wall to be concreted, by the illustrated anchoring system, is in FIG. 1 nor an attachment of the dome plates 26,27 provided on the back sides of the formwork elements 5,6. The latter attachment is made in the figures by means of bolts 32 with molded rings. The anchor rod 2 has in its between the formwork skins 7 to be positioned in the direction of the anchor tip 50 conically tapered shape, whereby the anchor rod 2, especially if this was treated or oiled before its application to the concrete wall formwork, after curing of the concrete concrete wall again relieved is removable.

Die Schalungselemente 5,6 der dargestellten Betonwandschalung sind mit ihren Ankerdurchführungsbohrungen 13 nicht fluchtend gegenüberliegend angeordnet. Dementsprechend sind die Schraubenmutterelemente 23,24 der Arretiervorrichtungen 20,21 nicht zentriert in den Öffnungen der sphärischen Plattenbereiche der zugehörigen Kalottenplatten angeordnet. Die Schraubenmutterelemente 23,24 sind vielmehr auf den Oberflächen der sphärischen Bereiche der Kalottenplatten von den jeweiligen Kalottenplatten geführt radial ausgelenkt, so dass der Ankerstab 2 nicht senkrecht zu den Schalhäuten 7 der Schalungselemente 5,6 ausgerichtet sein muss. Schräg verlaufende Verankerungen sind mit der Arretiervorrichtung dauerhaft und mehrfach einsetzbar möglich und dies bei einseitiger Bedienung. Die bedienerseitig abgewandte Ankerstelle ist sicher abdichtbar, wobei der Ankerstab selbst nicht mehr auf die Dichtlippe des Dichtungselements drückt. Der gesetzte Ankerstab liegt über dem Schraubenanschlag am freien Ende der Führungseinrichtung an. Über die Führungseinrichtung erfolgt die Abdichtung mit dem Innendichtring des Dichtungselements.The formwork elements 5.6 of the concrete wall formwork shown are arranged with their anchor feedthrough holes 13 not aligned opposite. Accordingly, the nut members 23, 24 of the locking devices 20, 21 are not centered in the openings of the spherical plate portions of the associated dome plates. Rather, the nut elements 23, 24 are radially deflected on the surfaces of the spherical areas of the dome plates, guided by the respective dome plates, so that the anchor rod 2 does not have to be aligned perpendicular to the scarf skins 7 of the formwork elements 5, 6. Sloping anchorages are permanently and repeatedly used with the locking device possible and this with one-sided operation. The operator side facing away from the anchor point is securely sealed, the anchor rod itself no longer presses on the sealing lip of the sealing element. The set anchor rod rests on the screw stop at the free end of the guide device. About the guide means sealing with the inner sealing ring of the sealing element.

Vorgeschlagen wird ein Schalungselement (5,6) mit einer Schalhaut (7) und einer Arretiervorrichtung (21) für einen Ankerstab (2) eines Ankersystems einer Betonwandschalung(6), wobei die Arretiervorrichtung folgendes umfasst: - ein ringförmiges Dichtungselement (15) zum Abdichten einer Ankerdurchführungsbohrung (13) in der Schalhaut (7), - ein Schraubenmutterelement (24) zum Einschrauben des Ankerstabs (2) in ein Schraubenmuttergewinde des Schraubenmutterelements (24), und - eine Kalottenplatte (27), die mittels Befestigungsmitteln (30) an einer Rückseite des Schalungselements (6) befestigt ist und welche einen sphärisch ausgebildeten Plattenbereich mit einer Öffnung aufweist, in der das Schraubenmutterelement (24) mit radialem Spiel angeordnet ist, wobeidas Schraubenmutterelement (24) eine nutartig radial umlaufende Aufnahme (40) aufweist, in der die Ränder der Öffnung im sphärischen Plattenbereich aufgenommen sind, wobei am betonschalungsseitig angeordneten Ende des Schraubenmutterelements (24) eine mit dem Schraubenmutterelement einstückig ausgeführte rohrförmige Führungseinrichtung (45) vorgesehen ist, die mit dem Schraubenmuttergewinde des Schraubenmutterelements (24) fluchtet, wobei die Führungseinrichtung (45) ein freies Ende aufweist, in das der in das Schraubenmutterelement (24) einzuschraubende Ankerstab (2) einführbar ist, dadurch gekennzeichnet, dass das Dichtungselement (15) einen gummielastischen oder zähelastischen Innendichtring (46) aufweist, und dass das schalungselementseitig angeordnete freie Ende (51) der Führungseinrichtung (45) in den Innendichtring (46) dichtend hinein ragt.Proposed is a formwork element (5,6) with a formwork skin (7) and a locking device (21) for an anchor rod (2) of an anchoring system concrete wall formwork (6), wherein the locking device comprises: - an annular sealing member (15) for sealing a Ankerdurchführungsbohrung (13) in the formwork skin (7), - a nut element (24) for screwing the anchor rod (2) in a nut thread of the nut member (24), and - a dome plate (27) by means of fastening means (30) on a Rear side of the formwork element (6) is fixed and which has a spherically shaped plate portion having an opening in which the nut member (24) is arranged with radial play, wherein the nut member (24) has a groove-like radial circumferential receptacle (40) in which the Rims of the opening are received in the spherical plate area, wherein the concrete shutter side arranged end of the screws nut member (24) is provided with an integral with the nut member tubular guide means (45) is aligned with the nut thread of the nut member (24), wherein the guide means (45) has a free end into which the screwed into the nut member (24) Anchor rod (2) is insertable, characterized in that the sealing element (15) has a rubber-elastic or visco-elastic inner sealing ring (46), and that the shuttering element side arranged free end (51) of the guide means (45) in the inner sealing ring (46) protrudes sealingly ,

Die Erfindung beschränkt sich nicht auf die vorstehend angegebenen Ausführungsbeispiele. The invention is not limited to the embodiments given above.

Claims (12)

  1. Formwork element (5,6) with a formlining (7) and a locking device (21) for a tie rod (2) of a tie system of a concrete wall formwork (6), wherein the locking device comprises:
    - an annular sealing element (15) for sealing a tie penetration hole (13) in the formlining (7),
    - a threaded nut element (24) for threading the tie rod (2) into a threaded nut thread of the threaded nut element (24), and
    - a cap plate (27), which is fastened to a rear face of the formwork element (6) by means of fastening elements (30) and has a spherically designed plate region having an opening in which the threaded nut element (24) is disposed with radial clearance, wherein the threaded nut element (24) has a groove-like radial circumferential receptacle (40) in which the edges of the opening in the spherical plate region are received, wherein
    the end of the threaded nut element (24) located on the concrete formwork side has a tubular guiding device (45) which is integral with the threaded nut element (24), the tubular guiding device (45) being flush with the threaded nut thread of the threaded nut element (24), the guiding device (45) having a free end into which the tie rod (2), which is to be screwed into the threaded nut element (24), can be introduced,
    characterized in that
    the sealing element (15) has an inner sealing ring (46) exhibiting rubber elasticity or viscoelasticity and that the free end (51) of the guiding device (45) located on the formwork element side sealingly protrudes into the inner sealing ring (46), wherein the free end (51) of the guiding device (45) to be provided on the formwork element side is flush with an outside edge of the inner sealing ring (46) to be disposed on the formlining side or protrudes beyond the outside edge on the formlining side.
  2. Formwork element according to claim 1, characterized in that the sealing element (15) has a metal sleeve (47), wherein the inner sealing ring (46) is sealingly disposed in the metal sleeve (47).
  3. Formwork element according to claim 2, characterized in that the metal sleeve (47) has a radial circumferential and radially outwardly projecting widening (49) to be disposed on the formlining side.
  4. Formwork element according to any one of the claims 2 or 3,
    characterized in that
    the sealing element (15) has an outside ring (48) preferably made of rigid plastic, wherein the outside ring (48) is plugged or threaded onto the metal sleeve (47).
  5. Formwork element according to any one of the claims 1 to 4,
    characterized in that
    the free end (51) of the guiding device (45) located on the formwork element side rests against a radial circumferential widened sealing lip (46') of the inner sealing ring (46).
  6. Formwork element according to any one of the claims 1 to 5,
    characterized in that
    the spherically designed plate region constitutes a spherical cup region with a sphere center on the formwork element side, and wherein surface regions of the circumferential receptacle (40) of the threaded nut element (24), which rest against the spherically designed plate region, are constituted such that they are complementarily shaped with respect to the spherically designed plate region.
  7. Formwork element according to any one of the claims 1 to 6,
    characterized in that
    an anti-rotation lock (60) is provided on the threaded nut element (24), preferably wherein
    the anti-rotation lock (60) has a stop element preferably constituted as a wing, wherein the stop element can prevent rotation of the threaded nut element (24) by stopping against a stop, preferably against fastening elements (30).
  8. Concrete wall formwork comprising:
    a first and a second formwork element (5,6) each having a formlining (7), wherein the formwork elements (5,6) are disposed opposite each other with their formlinings (7),
    and a tie system having a tie rod (2),
    characterized in that
    the second formwork element is structured according to one of the claims 1 to 8, wherein
    the tie rod (2) is inserted from the rear face of the formlining (7) of the first formwork element (5) through a tie penetration hole (13) in the formlining (7) of the first formwork element (5) and through the sealing element (15), the tie rod (2) being threaded into the threaded nut thread of the threaded nut element (24) of the locking device (21).
  9. Concrete wall formwork according to claim 8,
    characterized in that
    the tie rod (2) has a rounded tie rod tip (50) and a first thread (71) in the end region of the tie rod (2) facing away from the tie rod tip and a second thread (70) in the end region of the tie rod (2) near to the tie rod tip.
  10. Concrete wall formwork according to claim 9,
    characterized in that
    the tie rod (2) conically tapers between the first and the second thread (70, 71) toward the tie rod tip (50), and/or that the thread shape of the first thread (71) differs from the thread shape of the second thread (70) and/or that a thread stop (52) is constituted on the tie rod (2) at the end of the second thread (70) that faces away from the tie rod tip, wherein the second thread (70) of the tie rod (2) can be threaded fully, against a stop, into the threaded nut element (24) of the locking device (21).
  11. Concrete wall formwork according to any one of the claims 8 to 10,
    characterized in that
    the free end (51) of the guiding device (45) of the locking device (21) located on the formwork element side is flush with the outside edge of the inner sealing ring (46) of the sealing element (15) located on the formwork element side or projects or protrudes beyond the outside edge on the formwork element side, wherein the outside edge of the inner sealing ring (46) of the sealing element (15) located on the formwork element side is essentially flush with the front face of the formlining (7) of the second formwork element (6).
  12. Concrete wall formwork according to any one of the claims 9 to 11,
    characterized in that
    a further sealing element (15) identical with the sealing element (15) of the locking device (21) for sealing the tie penetration hole (13) in the formlining (7) of the first formwork element (5) is provided in the tie penetration hole (13) in the formlining (7) of the first formwork element (5), wherein the tie rod (2) can be inserted through the further sealing element (15) and is inserted through the further sealing element (15) in the settled state of the tie rod (2).
EP11702442.2A 2010-02-18 2011-02-01 Anchor system of a concrete wall formwork Active EP2536899B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201130730T SI2536899T1 (en) 2010-02-18 2011-02-01 Anchor system of a concrete wall formwork
PL11702442T PL2536899T3 (en) 2010-02-18 2011-02-01 Anchor system of a concrete wall formwork
HRP20160438TT HRP20160438T1 (en) 2010-02-18 2016-04-22 Anchor system of a concrete wall formwork

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010002108A DE102010002108A1 (en) 2010-02-18 2010-02-18 Anchor system of a concrete wall formwork
PCT/EP2011/051419 WO2011101240A1 (en) 2010-02-18 2011-02-01 Anchor system of a concrete wall formwork

Publications (2)

Publication Number Publication Date
EP2536899A1 EP2536899A1 (en) 2012-12-26
EP2536899B1 true EP2536899B1 (en) 2016-01-27

Family

ID=43736089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11702442.2A Active EP2536899B1 (en) 2010-02-18 2011-02-01 Anchor system of a concrete wall formwork

Country Status (20)

Country Link
US (1) US8727302B2 (en)
EP (1) EP2536899B1 (en)
CN (1) CN102791939B (en)
AU (1) AU2011217385B2 (en)
BR (1) BR112012020754B1 (en)
CA (1) CA2789395C (en)
CL (2) CL2012002263A1 (en)
DE (1) DE102010002108A1 (en)
DK (1) DK2536899T3 (en)
ES (1) ES2563050T3 (en)
HK (1) HK1174674A1 (en)
HR (1) HRP20160438T1 (en)
HU (1) HUE028807T2 (en)
MX (1) MX2012009560A (en)
PL (1) PL2536899T3 (en)
RU (1) RU2513601C1 (en)
SG (1) SG183288A1 (en)
SI (1) SI2536899T1 (en)
UA (1) UA104082C2 (en)
WO (1) WO2011101240A1 (en)

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WO2024056694A1 (en) 2022-09-15 2024-03-21 Peri Se Frame formwork element for a wall formwork system, wall formwork system, and method for assembling a wall formwork system
DE102022123650A1 (en) 2022-09-15 2024-03-21 Peri Se Frame formwork element for a wall formwork system, wall formwork system and method for constructing a wall formwork system
WO2024056693A1 (en) 2022-09-15 2024-03-21 Peri Se Frame formwork element

Also Published As

Publication number Publication date
HK1174674A1 (en) 2013-06-14
US20120304570A1 (en) 2012-12-06
EP2536899A1 (en) 2012-12-26
HUE028807T2 (en) 2017-01-30
MX2012009560A (en) 2012-10-01
CL2012002263A1 (en) 2013-06-07
CN102791939A (en) 2012-11-21
UA104082C2 (en) 2013-12-25
SG183288A1 (en) 2012-09-27
BR112012020754A2 (en) 2016-05-03
ES2563050T3 (en) 2016-03-10
DE102010002108A1 (en) 2011-08-18
BR112012020754B1 (en) 2019-12-10
DK2536899T3 (en) 2016-04-25
HRP20160438T1 (en) 2016-05-20
PL2536899T3 (en) 2016-05-31
CA2789395A1 (en) 2011-08-25
RU2513601C1 (en) 2014-04-20
CA2789395C (en) 2016-08-23
CN102791939B (en) 2016-01-20
SI2536899T1 (en) 2016-03-31
WO2011101240A1 (en) 2011-08-25
CL2014002902A1 (en) 2015-07-10
US8727302B2 (en) 2014-05-20
AU2011217385B2 (en) 2014-09-11
AU2011217385A1 (en) 2012-11-08

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