EP1704293B1 - Curved concrete formwork - Google Patents

Curved concrete formwork Download PDF

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Publication number
EP1704293B1
EP1704293B1 EP04802840A EP04802840A EP1704293B1 EP 1704293 B1 EP1704293 B1 EP 1704293B1 EP 04802840 A EP04802840 A EP 04802840A EP 04802840 A EP04802840 A EP 04802840A EP 1704293 B1 EP1704293 B1 EP 1704293B1
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EP
European Patent Office
Prior art keywords
bolt
transverse
formwork
transverse bolt
bolts
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.)
Not-in-force
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EP04802840A
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German (de)
French (fr)
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EP1704293A1 (en
Inventor
Artur Schwörer
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
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Peri GmbH
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Publication of EP1704293A1 publication Critical patent/EP1704293A1/en
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Publication of EP1704293B1 publication Critical patent/EP1704293B1/en
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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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • E04G11/065—Forms for curved walls with mechanical means to modify the curvature
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame

Definitions

  • the invention relates to a concrete formwork with crossbars for attachment to a formwork element of the concrete formwork, each having a first Querriegelend Scheme at a arranged in the longitudinal direction of the crossbar first crossbar end, wherein the crossbars have at least one slot and at least one round hole.
  • a bolt holder with which the cross bar on the formwork element of the concrete formwork can be fastened, arranged or formed.
  • Betonrundschalonne be used for enclosing curved or curved walls.
  • the G 89 08 345 U1 discloses crossbar for a concrete formwork and a concrete formwork.
  • the crossbars have round holes, adjacent crossbars being connected via a telescoping spindle assembly to a spindle screwed into threaded stud holes of bolts, the bolts being inserted into the round holes of the crossbars.
  • a disadvantage of this concrete edge formwork is that in order to stabilize the crossbar each adjacent cross bar must be fixed with a further stabilizing crossbar. This leads to an increased installation effort and a large depth of concrete wall formwork, which is a hindrance in particular in a small space.
  • the EP 1 321 601 A1 discloses a generic cross bar. In one end region of the transverse bar, the transverse bar is fastened with a bolt passed through a slot on a longitudinal bar of the concrete circular formwork, and in another end area the transverse bar is fastened with a further bolt passed through a round hole on a second longitudinal bar.
  • the crossbar has a latch mount, with which it is attached via a telescopic spindle arrangement on the concrete circular formwork. Even with this concrete circular formwork, it is disadvantageous that in order to stabilize the transverse bars, in each case the adjacent transverse bars must be fixed with a further stabilizing crossbar.
  • the stabilizing crossbars are the EP 1 321 601 A1 also connected to each other with telescopic spindle assemblies. This arrangement leads to a very high installation costs and that the arrangement of specially trained professionals must be mounted.
  • the EP 0 807 501 A and the GB 1 001 768 A each reveal a concrete formwork with cross bars, wherein the crossbars each have a slot and / or a round hole at the cross bar ends.
  • Such transverse bars arranged adjacent to the concrete circular formwork are arranged in overlapping fashion with their ends in such a way that the round holes and / or the oblong holes are arranged so as to overlap Bolts penetrations are formed.
  • Different crossbars must be connected to each other.
  • the crossbars of the GB 1 001 768 A must be bolted together at the bolt passages to fix a curvature of the concrete formwork.
  • the EP 0 807 501 A and the GB 1 001 768 A each reveal a concrete formwork with cross bars, wherein the crossbars each have a slot and / or a round hole at the cross bar ends.
  • Such transverse bars arranged adjacent to the concrete circular formwork are arranged in overlapping fashion with their ends such that bolt penetrations are formed by the round holes and / or the oblong holes.
  • Different crossbars must be connected to each other.
  • the crossbars of the GB 1 001 768 A must be bolted together at the bolt passages to fix a curvature of the concrete formwork.
  • the invention has for its object to provide a concrete wall formwork that avoids the disadvantages of the prior art, in particular is simple and inexpensive to use and has the lowest possible depth.
  • the crossbar has a bolt holder with which the cross bar on a formwork element of a concrete formwork, preferably a concrete formwork, and a first Querriegelend Scheme arranged on a longitudinal direction of the cross bar first crossbar end, wherein the crossbar at least has a slot and at least one round hole.
  • the slot and the round hole are, preferably in the longitudinal direction of the cross bar, arranged side by side in the first Querriegelend Scheme.
  • the Cross bar is preferably formed as a one-piece part, which is made for example of steel.
  • the object is achieved in that on a concrete formwork, with at least one formwork element with a formwork skin, such cross bar are fixed such that a crossbar end of a first cross bar with a crossbar end of a second cross bar overlaps at least partially.
  • the slot of the first crossbar end comes with the round hole of the second crossbar end to overlap, that a first bolt bushing is formed and the slot of the second crossbar end with the round hole of the first crossbar end so as to cover that a second bolt bushing is formed.
  • the existing of individual such cross bars locking portions form a rigid crossbar assembly because of the overlap, the locking portions are in the context of the slot of the slots against each other can be bent when bolts are inserted into the bolt passages.
  • the concrete circular formwork according to the invention can be used both as an inner and as an outer formwork. The bending of the concrete formwork is formed by the combination of all crossbars and edge crossbars and not by the formwork itself. The formwork skin is easily replaceable if necessary.
  • the crossbars are arranged overlapping at their crossbar ends.
  • the slot and the round hole of a Querriegelend Schemes comes here one above the other lying so that they form bolt passages, the slot of a first comes to rest over the round hole of a second cross bar.
  • the cross bars are then connected to each other via the bolts and the overlapping crossbar ends by the cross bar ends themselves and the slotted shape of the elongated holes.
  • the cross bar ends are then connected together so that they have a bending moment can still record and be angled against each other and telescoped. When telescoping the connected crossbars go over in a defined angle shape. An additional stabilization of adjacent crossbar can be eliminated.
  • the height of a concrete formwork low, since only one cross-bolt position is necessary. This is advantageous for the transport of the concrete wall formwork, or the formwork elements from which the concrete wall formwork is to be assembled, and when shelling a concreting concrete to be concreted in close quarters. In addition, the assembly of the concrete wall formwork is simplified and accelerated.
  • such a transverse bar has a second transverse bar end area on a second transverse bar end arranged opposite the first transverse bar end in the longitudinal direction of the transverse bar, wherein the transverse bar end areas each have at least one round hole arranged next to at least one oblong hole, preferably in the longitudinal direction of the transverse bar.
  • Such crossbars can be joined overlapping on both sides in the longitudinal direction of the crossbars with their ends. This makes it possible to build a crossbar assembly composed of many transverse bars according to the invention.
  • the slots and the round holes are preferably arranged mirror-symmetrically to each other.
  • the bolt holder is hat-shaped or trapezoidal.
  • a good transfer of a bending force exerted by the crossbar on the formwork skin of the concrete formwork is possible.
  • the bolt holder of the cross bar preferably has openings for performing a screw connection for fastening the cross bar to the concrete circular formwork.
  • the cross bar can be easily attached to predetermined attachment points on the concrete wall formwork.
  • a rigid one Mounting allows a defined transfer of bending moments on the formwork, ie the shape of the formwork can be adjusted exactly.
  • the bolt holder is arranged in a central region of the cross bar between the crossbar ends on the crossbar. This allows a symmetrical bending moment transmission, which is particularly advantageous for concrete circular formwork, for enclosing circular Betonrundache.
  • the transverse bar has a second transverse bar end arranged opposite the first transverse bar end in the longitudinal direction of the transverse bar, wherein the transverse bar holder is arranged or formed on the second transverse bar end.
  • the bolt holder is then the first cross bar end, viewed in the longitudinal direction of the cross bar opposite.
  • Such a cross bar is suitable as edge cross bar for a concrete circular formwork.
  • the crossbar can be attached to the edge of the concrete formwork such that it does not protrude beyond the edge, allowing a flush formwork with other formwork elements.
  • the bolt holder of the edge cross bar is preferably connected to the edge support element, in particular welded.
  • Such an edge support element is preferably designed such that it assumes the function of a longitudinal bar, i. the formwork on which it is fixed in the longitudinal direction, perpendicular to the crossbars, or to their orientation on the formwork skin, stiffen. This embodiment facilitates the mounting of the edge cross bar.
  • the cross bar is preferably formed as a U-shaped profile, or has a U-shaped profile, wherein the Querriegelend Schemee the cross bar ends are each formed as extensions of both legs of the U-shaped profile.
  • the slot and the round hole in each case a Querriegelend Scheme penetrate each case both extensions of the cross bar end, in such a way; that bolt passages are formed.
  • This embodiment makes it possible to provide a very rigid cross bar with low material consumption or low weight.
  • Such a crossbar can be made by stamping and / or bending operations of a metal sheet. The fact that the holes penetrate both extensions, a tilting of a bolt performed through the holes is avoided. It creates a reliable guide for the bolt.
  • the bolt holder is rigidly connected to the crossbar, preferably welded.
  • the rigid connection allows accurate transfer of a bending moment exerted by the crossbars on the formwork, with a torsionally rigid connection of the cross bar according to the invention is ensured with the concrete wall formwork. If the bolt holder is welded to the crossbar, the assembly effort is minimized, ensuring a very reliable connection.
  • the crossbars are connected at their overlapping crossbar ends via a telescopic spindle arrangement with a spindle which connects two bolts.
  • the bolts are arranged in the first and second bolt leadthrough. This arrangement allows a flexible setting of a radius of curvature of the formwork skin by simply telescoping the spindle assembly.
  • the bolts of the spindle assembly each have a screw threaded hole, wherein the spindle is screwed into the screw threaded holes and one of the screw threaded holes is formed as a left-hand thread and the other as a right-hand thread.
  • carrier elements and edge support elements are preferably fastened to the formwork skin of the formwork elements, wherein the crossbars with their latch mountings are in turn fastened to the support elements or edge support elements.
  • the carrier elements take over the function of Leksriegeln. If the crossbar invention are attached to existing support elements and not directly on the formwork, damage to the formwork during installation of the concrete formwork are avoided.
  • the support elements fulfill the function of Leksriegeln particularly favorable because they then have a dual functionality. Additional elements are not needed.
  • the anyway required side members of the concrete formwork can also serve as support elements for the crossbars according to the invention.
  • the crossbars according to the invention are rigid, in particular torsionally rigid, attached to the support elements.
  • the support elements preferably have recesses for the implementation of anchors and / or for attachment of working platforms and / or for connection of any connection elements. As a result, the stable support function of the carrier elements can be used for further purposes.
  • At least one crossbar is attached to the edge support element, which is designed as edge crossbar, wherein the edge support element has a resiliently formed tab which is disposed on one side of the edge support element, which faces away from the edge of the formwork skin.
  • the tab is fixed and formed on the formwork skin such that the tab at a force applied to the tab on the cross bar of the bending direction of the formwork follows.
  • the edge profile is rigidly secured to an edge of the formwork, wherein at least one inventive edge crossbar is attached to the edge support element.
  • the edge support member has a resiliently formed tab which is arranged on one side of the edge support element, which faces away from the edge of the formwork skin.
  • the tab is attached to the formwork so that when the tab is pressed against the formwork, a bending moment is exerted on the formwork.
  • This Randzieiement can also be used without the crossbars described. It has the advantage that the bending imposed on the formwork is forced to the edge of the formwork. Without such a tab, a forced bend runs tangentially on the edge of the formwork. That is, the bend is in a more or less wide straight section on the edge of the formwork over.
  • With the spring-trained tab a round shape is made possible up to the edge of the formwork. In the edge region, the formwork is rigidly connected to the edge profile of the edge support element, yet the rounding is propagated through the spring-trained tab up to the edge of the formwork.
  • the pressing of the tab on the formwork skin is preferably carried out via an attached to the edge support element Randquerriegel.
  • edge support profiles By the edge support profiles, a stiffening of the edge of the formwork is made possible, while a desired bend is continued to the edge of the formwork skin at the same time.
  • Fig. 1 is a inventively usable cross bar 1 with a trapezoidal locking bracket 2 in the region of the center of the cross bar and with two cross bar ends, each having a slot 3 and a round hole 4 in Querriegelend Suiteen 5 shown.
  • the crossbar end regions 5 are located each at one end of the cross bar 1 and are arranged opposite one another in the longitudinal direction of the cross bar 1.
  • 1 attachment points 6 are formed as holes on the cross bar. At this attachment points 6 any connection elements can be fixed.
  • the .Riegelhalterung 2 openings 10 on. By means of these openings 10, for example, screws can be made in order to screw the crossbar 1 to the concrete circular formwork.
  • the bolt holder 2 is formed from a U-shaped profile and connected via a weld 11 with the cross bar 1. Trained as extensions of the legs of the U-shaped profile Querriegelend Schemee 5 each have the round hole 4 and the slot 3, which penetrate both extensions.
  • the round hole 4 and the slot 3 are each arranged in the longitudinal direction of the cross bar 1 side by side.
  • the slotted hole 3 in the cross bar end region 5 is formed closer to the respective cross bar end than the round hole 4.
  • the slotted shape of the oblong holes 3 has in its longitudinal direction a bend which is designed such that it corresponds to the shape of a concrete wall to be concreted.
  • Fig. 2 shows a crossbar which can be used according to the invention, which is designed as edge crossbar 20.
  • the edge cross bar 20 has a cross bar end with also a slot 3 and a round hole 4 in a Querriegelend Scheme 5, and a locking bracket 2 at the diametrical cross bar end.
  • the bolt holder 2 is connected to a carrier element 21 in the edge region of a concrete circular formwork.
  • a Randmorsrundloch 22 in which, for example, a bolt can be inserted.
  • Concrete circular formwork elements which each have edge crossbars 20 according to the invention, can be connected to one another by means of a preferably telescopic spindle arrangement via the edge connection round holes 22 of the edge crossbars 20.
  • FIGS. 3a and 3b in each case a concrete round formwork 100 according to the invention is shown.
  • Fig. 3a shows a plan view of the concrete formwork 100
  • Fig. 3b shows an oblique perspective view of the concrete formwork 100.
  • the concrete formwork 100 consists of two Partbetonrundschalitch (shuttering elements 110, 120).
  • the formwork elements 110, 120 each have three the function of longitudinal bars perceiving carrier elements 102.
  • recesses 103 for example, for the implementation of (not shown) concrete formwork anchors arranged.
  • the carrier elements 102 are formed in accordance with the shape of the bolt holders 2 as trapezoidal profiles.
  • the edge support elements 104 arranged at the edges in the bending direction of the formwork elements 110, 120 are designed as edge profiles.
  • the concrete circular formwork 100 has on each formwork element 110, 120 an arrangement which is composed of three each of the crossbar 1 described. In this case, three crossbars 1 are attached to each support element 102, seen over the height of the concrete circular formwork 100.
  • three edge crossbars 20 are fastened. Adjacent crossbars 1 and edge bars 20 adjacent to transverse bars 1 overlap abutting crossbar ends 106.
  • the overlapping crossbar ends 106 can be pushed over one another, for example. If this is the case, then the cross bar ends 106 can all be formed identically. However, the crossbar ends 106 may also be pushed one inside the other. Then the cross bar ends 106 must be dimensioned differently, so that a narrower cross bar end 106 can be inserted into a wider cross bar end 106. In the latter case, either each crossbar 1 may have a narrower and a wider crossbar end 106, or two different sized crossbars 1 may be used, with one crossbar 1 having narrower and the other wider crossbar 106 ends. The overlapping crossbar ends 106 overlap such that the slot of the one crossbar end comes to rest over the round hole of the adjacent crossbar end.
  • each of a pair of overlapping crossbar ends 106 two bolt passages are formed, which, due to the fact that one slot per bolt bushing is present, the bolt passages remain in a flexible bending of the formwork 101.
  • the overlapping crossbar ends 106 are each shown connected via a telescopic spindle assembly 130.
  • This formwork element 120 is thus shown fully assembled.
  • the spindle assembly 130 consists of a spindle 131 and two bolts 132 with screw threaded holes into which the spindle 131 is screwed (see also Fig. 4a ).
  • the bolts 132 are each passed through a bolt passage.
  • the spindle 131 has a right-hand thread on one side and a left-hand thread on the other side.
  • the spindle assembly 130 telescoped, ie extended or shortened, and it can be set a curvature of the crossbar assembly, this curvature of the formwork skin 101 is imposed.
  • adjacent Randquerriegel 20 of the two formwork elements 110, 120 can be connected to one another with such a spindle assembly 130, wherein one of the two bolts is inserted into an edge connection hole 22 of one of the adjacent Randquerriegel 20.
  • Fig. 4a is the concrete formwork according to the invention Fig. 3 in a cross section along a crossbar assembly, which is composed of several described Querriegeln 1, 20 shown.
  • Fig. 4b shows a section IV b Fig. 4a with such a crossbar 1 and a corresponding It consists of three cross bars 1 and two each Randquerriegeln 20 per formwork element 110, 120.
  • the adjacent crossbar 1 and cross bar 1 with Randquerriegel 20 overlap with their end portions.
  • the overlapping cross-bar ends are connected to telescopic spindle arrangements 130.
  • edge support elements 104 (edge profile) in the direction of the formwork 101, to which they are attached, each have a resilient tab 203.
  • the resilient tab 203 is pressed by the edge cross bar 20, which is attached to the associated edge support member 104, in conjunction with the Schalhauthintergriff in the direction of the formwork 101 such that a bending moment is exerted on the formwork 201.
  • Adjoining formwork elements 110, 120 abut each other with one edge support element 104 each. In Fig. 4b is easy to see how a trapezoidal locking bracket 2 is mounted accurately on a trapezoidal support member 102.
  • Fig. 5 shows a cross section of an edge support member 104 with a resiliently formed tab 203, as in Fig. 4a and Fig. 4b already shown.
  • Such an edge support element 104 can also be used in concrete circular formwork, which do not have the crossbars described.
  • a concrete formwork with such an edge support element 104 thus represents a separate invention.
  • the edge support element 104 is formed as an edge profile.
  • the edge support member 104 on the resilient tab 203.
  • This resilient tab 203 together with the formliner 101, via which the formwork 101 is attached to the edge support member 104, a clearance space 206.
  • the edge support member 104 has on the resilient tab 203, a mounting hole 204.
  • the tab 203 can be screwed to the formwork 201.
  • the edge support member 104 on the edge profile on a rail 202 which includes an edge of the formwork 101.
  • the rail 202 corresponds with its longitudinal extent on the inside, which faces the formwork 101 directly, the thickness of the formwork 101 and is almost flush with the outer skin edge of the formwork 101. If a Randquerriegel welded to the edge support member 104, so this presses in the region of the distance space 206 against the tab 203rd , Since the tab 203 is firmly screwed to the formwork 101, a bending moment is exerted on the formwork 101. As a result, a desired curvature of the concrete formwork can be continued up to the edge of the formwork 101.
  • a cross bar 1 for attachment to a formwork element 110,120 a concrete formwork 100, preferably a concrete formwork, with a first Querriegelend Scheme at a arranged in the longitudinal direction of the crossbar 1 first crossbar end, wherein the crossbar 1 has at least one slot and at least one round hole, and a concrete circular formwork from formwork elements 110,120 with such a cross bar.
  • a bolt holder 2 with which the crossbar 1 can be fastened to the formwork element 110, 120 of the concrete circular formwork, is arranged on the crossbar.
  • the oblong hole 3 and the round hole 4 are, preferably seen in the longitudinal direction of the cross bar 1, arranged side by side in the first Querriegelend Scheme.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
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Description

Die Erfindung betrifft eine Betonrundschalung mit Querriegeln zum Befestigen an einem Schalungselement der Betonrundschalung, mit jeweils einem ersten Querriegelendbereich an einem in Längsrichtung des Querriegels angeordneten ersten Querriegelende, wobei die Querriegel mindestens ein Langloch und mindestens ein Rundloch aufweisen. Weiter ist an den Querriegeln eine Riegelhalterung, mit der der Querriegel an dem Schalungselement der Betonrundschalung befestigbar ist, angeordnet bzw. ausgebildet. Derartige Betonrundschalungen werden zum Einschalen von gekrümmten oder gebogenen Wandungen verwendet.The invention relates to a concrete formwork with crossbars for attachment to a formwork element of the concrete formwork, each having a first Querriegelendbereich at a arranged in the longitudinal direction of the crossbar first crossbar end, wherein the crossbars have at least one slot and at least one round hole. Next is at the crossbars a bolt holder with which the cross bar on the formwork element of the concrete formwork can be fastened, arranged or formed. Such Betonrundschalungen be used for enclosing curved or curved walls.

Die G 89 08 345 U1 offenbart Querriegel für eine Betonrundschalung und eine Betonrundschalung. Die Querriegel weisen Rundlöcher auf, wobei benachbarte Querriegel über eine teleskopierbare Spindelanordnung mit einer Spindel, die in Schraubengewindelöche'r von Bolzen eingeschraubt ist, wobei die Bolzen in die Rundlöcher der Querriegel eingeführt sind, verbunden sind. Nachteilig bei dieser Betonrandschalung ist es, dass zur Stabilisierung der Querriegel jeweils die benachbarten Querriegel mit einem weiteren Stabilisierungsquerriegel fixiert werden müssen. Dies führt zu einem erhöhten Montageaufwand und zu einer großen Bautiefe der Betonwandschalung, was insbesondere bei geringem Platzangebot hinderlich ist.The G 89 08 345 U1 discloses crossbar for a concrete formwork and a concrete formwork. The crossbars have round holes, adjacent crossbars being connected via a telescoping spindle assembly to a spindle screwed into threaded stud holes of bolts, the bolts being inserted into the round holes of the crossbars. A disadvantage of this concrete edge formwork is that in order to stabilize the crossbar each adjacent cross bar must be fixed with a further stabilizing crossbar. This leads to an increased installation effort and a large depth of concrete wall formwork, which is a hindrance in particular in a small space.

Die EP 1 321 601 A1 offenbart einen gattungsgemäßen Querriegel. In einem Endbereich des Querriegels ist der Querriegel mit einem durch ein Langloch durchgeführten Bolzen an einem Längsriegel der Betonrundschalung befestigt und in einem weiteren Endbereich ist der Querriegel mit einem weiteren durch ein Rundloch durchgeführten Bolzen an einem zweiten Längsriegel befestigt. Der Querriegel weist eine Riegelhalterung auf, mit der er über eine teleskopierbare Spindelanordnung an der Betonrundschalung befestigt ist. Auch bei dieser Betonrundschalung ist es nachteilig, dass zur Stabilisierung der Querriegel jeweils die benachbarten Querriegel, mit einem weiteren Stabilisierungsquerriegel fixiert werden müssen. Zudem sind die Stabilisierungsquerriegel der EP 1 321 601 A1 ebenfalls mit teleskopierbaren Spindelanordnungen miteinander verbunden. Diese Anordnung führt zu einem sehr hohen Montageaufwand und dazu, dass die Anordnung von speziell ausgebildeten Fachkräften montiert werden muss.The EP 1 321 601 A1 discloses a generic cross bar. In one end region of the transverse bar, the transverse bar is fastened with a bolt passed through a slot on a longitudinal bar of the concrete circular formwork, and in another end area the transverse bar is fastened with a further bolt passed through a round hole on a second longitudinal bar. The crossbar has a latch mount, with which it is attached via a telescopic spindle arrangement on the concrete circular formwork. Even with this concrete circular formwork, it is disadvantageous that in order to stabilize the transverse bars, in each case the adjacent transverse bars must be fixed with a further stabilizing crossbar. In addition, the stabilizing crossbars are the EP 1 321 601 A1 also connected to each other with telescopic spindle assemblies. This arrangement leads to a very high installation costs and that the arrangement of specially trained professionals must be mounted.

Die EP 0 807 501 A und die GB 1 001 768 A offenbaren jeweils eine Betonrundschalung mit Querriegeln, wobei die Querriegel an deren Querriegelenden jeweils ein Langloch und/oder ein Rundloch aufweisen. An der Betonrundschalung benachbart angeordnete derartige Querriegel sind derart mit deren Enden überlappend angeordnet, dass von den Rundlöchern und/oder den Langlöchern Bolzendurchführungen gebildet werden. Bei der EP 0 807 501 A müssen unterschiedlich ausgeführte Querriegel miteinander verbunden werden. Die Querriegel der GB 1 001 768 A müssen an den Bolzendurchführungen miteinander verschraubt werden um eine Krümmung der Betonrundschalung zu fixieren. Die EP 0 807 501 A und die GB 1 001 768 A offenbaren jeweils eine Betonrundschalung mit Querriegeln, wobei die Querriegel an deren Querriegelenden jeweils ein Langloch und/oder ein Rundloch aufweisen. An der Betonrundschalung benachbart angeordnete derartige Querriegel sind derart mit deren Enden überlappend angeordnet, dass von den Rundlöchern und/oder den Langlöchern Bolzendurchführungen gebildet werden. Bei der EP 0 807 501 A müssen unterschiedlich ausgeführte Querriegel miteinander verbunden werden. Die Querriegel der GB 1 001 768 A müssen an den Bolzendurchführungen miteinander verschraubt werden um eine Krümmung der Betonrundschalung zu fixieren.The EP 0 807 501 A and the GB 1 001 768 A each reveal a concrete formwork with cross bars, wherein the crossbars each have a slot and / or a round hole at the cross bar ends. Such transverse bars arranged adjacent to the concrete circular formwork are arranged in overlapping fashion with their ends in such a way that the round holes and / or the oblong holes are arranged so as to overlap Bolts penetrations are formed. In the EP 0 807 501 A Different crossbars must be connected to each other. The crossbars of the GB 1 001 768 A must be bolted together at the bolt passages to fix a curvature of the concrete formwork. The EP 0 807 501 A and the GB 1 001 768 A each reveal a concrete formwork with cross bars, wherein the crossbars each have a slot and / or a round hole at the cross bar ends. Such transverse bars arranged adjacent to the concrete circular formwork are arranged in overlapping fashion with their ends such that bolt penetrations are formed by the round holes and / or the oblong holes. In the EP 0 807 501 A Different crossbars must be connected to each other. The crossbars of the GB 1 001 768 A must be bolted together at the bolt passages to fix a curvature of the concrete formwork.

Der Erfindung liegt die Aufgabe zugrunde, eine Betonwandschalung bereit zu stellen, die die Nachteile des Standes der Technik vermeidet, insbesondere einfach und kostengünstig einsetzbar ist und eine möglichst geringe Bautiefe aufweist.The invention has for its object to provide a concrete wall formwork that avoids the disadvantages of the prior art, in particular is simple and inexpensive to use and has the lowest possible depth.

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

Die Aufgabe wird hinsichtlich des Querriegels dadurch gelöst, dass der Querriegel eine Riegelhalterung, mit der der Querriegel an einem Schalungselement einer Betonschalung, bevorzugt einer Betonrundschalung befestigbar ist, und einen ersten Querriegelendbereich an einem in Längsrichtung des Querriegels angeordneten ersten Querriegelende aufweist, wobei der Querriegel mindestens ein Langloch und mindestens ein Rundloch aufweist. Das Langloch und das Rundloch sind, bevorzugt in Längsrichtung des Querriegels, nebeneinander in dem ersten Querriegelendbereich angeordnet. Der Querriegel ist dabei bevorzugt als einstückiges Teil ausgebildet, das z.B. aus Stahl hergestellt ist.The object is achieved with respect to the cross bar, characterized in that the crossbar has a bolt holder with which the cross bar on a formwork element of a concrete formwork, preferably a concrete formwork, and a first Querriegelendbereich arranged on a longitudinal direction of the cross bar first crossbar end, wherein the crossbar at least has a slot and at least one round hole. The slot and the round hole are, preferably in the longitudinal direction of the cross bar, arranged side by side in the first Querriegelendbereich. Of the Cross bar is preferably formed as a one-piece part, which is made for example of steel.

Hinsichtlich der Betonrundschalung wird die Aufgabe dadurch gelöst, dass an einer Betonrundschalung, mit mindestens einem Schalungselement mit einer Schalhaut, die derartigen Querriegel derart befestigt sind, dass ein Querriegelende eines ersten Querriegels mit einem Querriegelende eines zweiten Querriegels mindestens teilweise überlappt. Dabei kommt das Langloch des ersten Querriegelendes mit dem Rundloch des zweiten Querriegelendes derart zur Überdeckung, dass eine erste Bolzendurchführung ausgebildet ist und das Langloch des zweiten Querriegelendes mit dem Rundloch des ersten Querriegelendes derart zur Überdeckung, dass eine zweite Bolzendurchführung ausgebildet ist.With regard to the concrete circular formwork, the object is achieved in that on a concrete formwork, with at least one formwork element with a formwork skin, such cross bar are fixed such that a crossbar end of a first cross bar with a crossbar end of a second cross bar overlaps at least partially. In this case, the slot of the first crossbar end comes with the round hole of the second crossbar end to overlap, that a first bolt bushing is formed and the slot of the second crossbar end with the round hole of the first crossbar end so as to cover that a second bolt bushing is formed.

Die aus einzelnen solchen Querriegeln bestehenden Riegelabschnitte bilden wegen der Überlappung einen biegesteifen Querriegelverbund, wobei die Riegelabschnitte im Rahmen der Kulisse der Langlöcher gegeneinander abwinkelbar sind, wenn Bolzen in die Bolzendurchführungen eingesteckt sind. Die erfindungsgemäße Betonrundschalung ist sowohl als Innen- als auch als Außenschalung einsetzbar. Die Biegung der Betonrundschalung wird durch den Verbund von allen Querriegeln und Randquerriegeln und nicht von der Schalhaut selbst ausgeformt. Die Schalhaut ist bei Bedarf leicht auswechselbar.The existing of individual such cross bars locking portions form a rigid crossbar assembly because of the overlap, the locking portions are in the context of the slot of the slots against each other can be bent when bolts are inserted into the bolt passages. The concrete circular formwork according to the invention can be used both as an inner and as an outer formwork. The bending of the concrete formwork is formed by the combination of all crossbars and edge crossbars and not by the formwork itself. The formwork skin is easily replaceable if necessary.

Erfindungsgemäß sind die Querriegel an deren Querriegelenden überlappend angeordnet. Das Langloch und das Rundloch eines Querriegelendbereichs kommt dabei übereinander derart zum Liegen, dass sie Bolzendurchführungen bilden, wobei das Langloch eines ersten über dem Rundloch eines zweiten Querriegels zum Liegen kommt. Die Querriegel sind dann über die Bolzen und die überlappenden Querriegelenden durch die Querriegelenden selbst und die Kulissenform der Langlöcher geführt miteinander verbunden. Die Querriegelenden sind dann derart miteinander verbunden, dass sie ein Biegemoment aufnehmen können und dennoch gegeneinander abgewinkelt und teleskopiert werden können. Beim Teleskopieren gehen die verbundenen Querriegel in eine definierte Winkelform über. Eine zusätzliche Stabilisierung benachbarter Querriegel kann damit entfallen. Dadurch wird die Aufbauhöhe einer Betonrundschalung gering, da nur eine Querriegellage notwendig ist. Dies ist vorteilhaft für den Transport der Betonwandschalung, bzw. der Schalungselemente aus dem die Betonwandschalung zusammengebaut werden soll, und beim Einschalen einer zu betonierenden Betonrundung in beengten Verhältnissen. Zudem wird die Montage der Betonwandschalung vereinfacht und beschleunigt.According to the invention, the crossbars are arranged overlapping at their crossbar ends. The slot and the round hole of a Querriegelendbereichs comes here one above the other lying so that they form bolt passages, the slot of a first comes to rest over the round hole of a second cross bar. The cross bars are then connected to each other via the bolts and the overlapping crossbar ends by the cross bar ends themselves and the slotted shape of the elongated holes. The cross bar ends are then connected together so that they have a bending moment can still record and be angled against each other and telescoped. When telescoping the connected crossbars go over in a defined angle shape. An additional stabilization of adjacent crossbar can be eliminated. As a result, the height of a concrete formwork low, since only one cross-bolt position is necessary. This is advantageous for the transport of the concrete wall formwork, or the formwork elements from which the concrete wall formwork is to be assembled, and when shelling a concreting concrete to be concreted in close quarters. In addition, the assembly of the concrete wall formwork is simplified and accelerated.

Bevorzugt weist ein derartiger Querriegel einen zweiten Querriegelendbereich an einem in Längsrichtung des Querriegels dem ersten Querriegelende gegenüberliegend angeordneten zweiten Querriegelende auf, wobei die Querriegelendbereiche jeweils mindestens ein, bevorzugt in Längsrichtung des Querriegels, neben mindestens einem Langloch angeordnetes Rundloch aufweisen. Derartige Querriegel lassen sich auf beiden Seiten in Längsrichtung der Querriegel mit deren Enden überlappend zusammenfügen. Dadurch ist es möglich, einen aus vielen erfindungsgemäßen Querriegeln zusammengesetzten Querriegelverbund aufzubauen. Um für das Zusammenfügen des Querriegelverbunds baugleiche Querriegel verwenden zu können, sind die Langlöcher und die Rundlöcher bevorzugt spiegelsymmetrisch zueinander angeordnet.Preferably, such a transverse bar has a second transverse bar end area on a second transverse bar end arranged opposite the first transverse bar end in the longitudinal direction of the transverse bar, wherein the transverse bar end areas each have at least one round hole arranged next to at least one oblong hole, preferably in the longitudinal direction of the transverse bar. Such crossbars can be joined overlapping on both sides in the longitudinal direction of the crossbars with their ends. This makes it possible to build a crossbar assembly composed of many transverse bars according to the invention. In order to use for the assembly of the crossbar assembly identical crossbar, the slots and the round holes are preferably arranged mirror-symmetrically to each other.

Bevorzugt ist die Riegelhalterung hut- oder trapezförmig ausgebildet. Dadurch ist eine gute Übertragung eines vom Querriegel ausgeübten Biegemoments auf die Schalhaut der Betonrundschalung möglich.Preferably, the bolt holder is hat-shaped or trapezoidal. As a result, a good transfer of a bending force exerted by the crossbar on the formwork skin of the concrete formwork is possible.

Die Riegelhalterung des Querriegels weist bevorzugt Durchbrüche zum Durchführen einer Verschraubung zur Befestigung des Querriegels an der Betonrundschalung auf. Dadurch können die Querriegel an vorgegebenen Befestigungspunkten an der Betonwandschalung einfach befestigt werden. Eine starre Befestigung ermöglicht ein definiertes Übertragen von Biegemomenten auf die Schalhaut, d.h. die Formgebung der Schalhaut kann exakt eingestellt werden. Bevorzugt ist die Riegelhalterung in einem Mittelbereich des Querriegels zwischen den Querriegelenden am Querriegel angeordnet. Dadurch wird eine symmetrische Biegemomentübertragung ermöglicht, was insbesondere für Betonrundschalungen, zum Einschalen von kreisrunden Betonrundungen vorteilhaft ist.The bolt holder of the cross bar preferably has openings for performing a screw connection for fastening the cross bar to the concrete circular formwork. As a result, the cross bar can be easily attached to predetermined attachment points on the concrete wall formwork. A rigid one Mounting allows a defined transfer of bending moments on the formwork, ie the shape of the formwork can be adjusted exactly. Preferably, the bolt holder is arranged in a central region of the cross bar between the crossbar ends on the crossbar. This allows a symmetrical bending moment transmission, which is particularly advantageous for concrete circular formwork, for enclosing circular Betonrundungen.

In einer weiteren Ausprägung des Querriegels weist der Querriegel ein, in Längsrichtung des Querriegels dem ersten Querriegelende gegenüberliegend angeordnetes zweites Querriegelende auf, wobei die Querriegelhalterung an dem zweiten Querriegelende angeordnet bzw. ausgebildet ist. Die Riegelhalterung ist dann dem ersten Querriegelende, in Längsrichtung des Querriegels gesehen, gegenüberliegend ausgebildet. Ein derartiger Querriegel eignet sich als Randquerriegel für eine Betonrundschalung. Der Querriegel kann so am Rand der Betonrundschalung befestigt werden, dass er nicht über den Rand heraus steht, wodurch eine bündige Verschalung mit anderen Schalelementen möglich ist.In a further embodiment of the transverse bar, the transverse bar has a second transverse bar end arranged opposite the first transverse bar end in the longitudinal direction of the transverse bar, wherein the transverse bar holder is arranged or formed on the second transverse bar end. The bolt holder is then the first cross bar end, viewed in the longitudinal direction of the cross bar opposite. Such a cross bar is suitable as edge cross bar for a concrete circular formwork. The crossbar can be attached to the edge of the concrete formwork such that it does not protrude beyond the edge, allowing a flush formwork with other formwork elements.

Die Riegelhalterung des Randquerriegels ist bevorzugt mit dem Randträgerelement verbunden, insbesondere verschweißt. Ein derartiges Randträgerelement ist bevorzugt derart ausgebildet, dass es die Funktion eines Längsriegels übernimmt, d.h. die Schalhaut an der es befestigt ist in Längsrichtung, senkrecht zu den Querriegeln, bzw. zu deren Ausrichtung an der Schalhaut, aussteift. Diese Ausführungsform erleichtert die Montage des Randquerriegels.The bolt holder of the edge cross bar is preferably connected to the edge support element, in particular welded. Such an edge support element is preferably designed such that it assumes the function of a longitudinal bar, i. the formwork on which it is fixed in the longitudinal direction, perpendicular to the crossbars, or to their orientation on the formwork skin, stiffen. This embodiment facilitates the mounting of the edge cross bar.

Der Querriegel ist bevorzugt als ein U-förmiges Profil ausgebildet, bzw. weist ein U-förmiges Profil auf, wobei die Querriegelendbereiche der Querriegelenden jeweils als Verlängerungen beider Schenkel des U-förmigen Profils ausgebildet sind. Das Langloch und das Rundloch in jeweils einem Querriegelendbereich durchdringen dabei jeweils beide Verlängerungen des Querriegelendes, derart; dass Bolzendurchführungen gebildet werden. Diese Ausführungsform ermöglicht das Bereitstellen eines sehr biegesteifen Querriegels bei geringem Materialverbrauch bzw. geringem Gewicht. Ein derartiger Querriegel kann über Stanz- und/oder Biegevorgänge aus einem Blech hergestellt werden. Dadurch, dass die Löcher beide Verlängerungen durchdringen, wird ein Verkanten eines durch die Löcher durchgeführten Bolzens vermieden. Es wird eine zuverlässige Führung für den Bolzen geschaffen.The cross bar is preferably formed as a U-shaped profile, or has a U-shaped profile, wherein the Querriegelendbereiche the cross bar ends are each formed as extensions of both legs of the U-shaped profile. The slot and the round hole in each case a Querriegelendbereich penetrate each case both extensions of the cross bar end, in such a way; that bolt passages are formed. This embodiment makes it possible to provide a very rigid cross bar with low material consumption or low weight. Such a crossbar can be made by stamping and / or bending operations of a metal sheet. The fact that the holes penetrate both extensions, a tilting of a bolt performed through the holes is avoided. It creates a reliable guide for the bolt.

Bei einem derartigen Querriegel ist die Riegelhalterung starr mit dem Querriegel verbunden, bevorzugt verschweißt. Die starre Verbindung ermöglicht ein genaues Übertragen eines von den Querriegeln ausgeübten Biegemoments auf die Schalhaut, wobei eine torsionssteife Verbindung des erfindungsgemäßen Querriegels mit der Betonwandschalung gewährleistet ist. Ist die Riegelhalterung mit dem Querriegel verschweißt, so ist der Montageaufwand minimiert, unter Gewährleistung einer sehr zuverlässigen Verbindung.In such a cross bar, the bolt holder is rigidly connected to the crossbar, preferably welded. The rigid connection allows accurate transfer of a bending moment exerted by the crossbars on the formwork, with a torsionally rigid connection of the cross bar according to the invention is ensured with the concrete wall formwork. If the bolt holder is welded to the crossbar, the assembly effort is minimized, ensuring a very reliable connection.

Besonders bevorzugt weist die Kulissenform des Langloches, bzw. der Langlöcher, in dessen Längsrichtung mindestens eine Biegung auf, wobei die Form der Biegung einer mit der Betonwandschalung auszuformenden Rundung einer Betonwand entspricht. Dadurch ist eine Lenkfunktion im Langloch beim Teleskopieren der Spindelanordnung vorhanden. Es wird eine sehr einfache Montage der Betonrundschalung ermöglicht.Particularly preferably, the gate shape of the elongated hole, or elongated holes, in the longitudinal direction of at least one bend, wherein the shape of the bend corresponds to a auszuformenden with the concrete wall formwork curve a concrete wall. As a result, a steering function in the slot when telescoping the spindle assembly is present. It is a very simple installation of the concrete formwork allows.

Bevorzugt sind bei einer erfindungsgemäßen Betonrundschalung die Querriegel an ihren sich überlappenden Querriegelenden über eine teleskopierbare Spindelanordnung mit einer Spindel, die zwei Bolzen verbindet, verbunden. Dabei sind die Bolzen in der ersten und zweiten Bolzendurchführung angeordnet. Diese Anordnung ermöglicht ein flexibles Einstellen eines Krümmungsradius der Schalhaut durch einfaches Teleskopieren der Spindelanordnung.Preferably, in a concrete circular formwork according to the invention, the crossbars are connected at their overlapping crossbar ends via a telescopic spindle arrangement with a spindle which connects two bolts. The bolts are arranged in the first and second bolt leadthrough. This arrangement allows a flexible setting of a radius of curvature of the formwork skin by simply telescoping the spindle assembly.

In einer bevorzugten Ausführungsform verfügen die Bolzen der Spindelanordnung jeweils über ein Schraubengewindeloch, wobei die Spindel in die Schraubengewindelöcher eingeschraubt ist und eines der Schraubengewindelöcher als Linksgewinde und das andere als Rechtsgewinde ausgebildet ist. Dabei handelt es sich um eine einfache und bewährte Spindelanordnung, die eine sehr steife Ausformung des Gesamtquerriegels ermöglicht.In a preferred embodiment, the bolts of the spindle assembly each have a screw threaded hole, wherein the spindle is screwed into the screw threaded holes and one of the screw threaded holes is formed as a left-hand thread and the other as a right-hand thread. This is a simple and proven spindle arrangement, which allows a very rigid formation of the total cross bar.

Bei der erfindungsgemäßen Betonrundschalung sind bevorzugt Trägerelemente und Randträgerelemente an der Schalhaut der Schalungselemente befestigt, wobei die Querriegel mit ihren Riegelhalterungen wiederum an den Trägerelementen oder Randträgerelementen befestigt sind. Bevorzugt übernehmen die Trägerelemente die Funktion von Längsriegeln. Wenn die erfindungsgemäßen Querriegel an vorhandenen Trägerelementen und nicht direkt an der Schalhaut befestigt werden, werden Beschädigungen der Schalhaut bei der Montage der Betonrundschalung vermieden. Die Trägerelemente erfüllen besonders günstig die Funktion von Längsriegeln, da sie dann eine doppelte Funktionalität aufweisen. Zusätzliche Elemente werden nicht benötigt. Die ohnehin notwendigen Längsträger der Betonrundschalung können auch als Trägerelemente für die erfindungsgemäßen Querriegel dienen. Die erfindungsgemäßen Querriegel werden starr, insbesondere torsionssteif, an den Trägerelementen befestigt.In the case of the concrete circular formwork according to the invention, carrier elements and edge support elements are preferably fastened to the formwork skin of the formwork elements, wherein the crossbars with their latch mountings are in turn fastened to the support elements or edge support elements. Preferably, the carrier elements take over the function of Längsriegeln. If the crossbar invention are attached to existing support elements and not directly on the formwork, damage to the formwork during installation of the concrete formwork are avoided. The support elements fulfill the function of Längsriegeln particularly favorable because they then have a dual functionality. Additional elements are not needed. The anyway required side members of the concrete formwork can also serve as support elements for the crossbars according to the invention. The crossbars according to the invention are rigid, in particular torsionally rigid, attached to the support elements.

Die Trägerelemente weisen bevorzugt Aussparungen zur Durchführung von Ankern und/oder zur Befestigung von Arbeitsbühnen und/oder zur Anbindung von beliebigen Anschlusselementen auf. Dadurch kann die stabile Stützfunktion der Trägerelemente für weitere Zwecke genutzt werden.The support elements preferably have recesses for the implementation of anchors and / or for attachment of working platforms and / or for connection of any connection elements. As a result, the stable support function of the carrier elements can be used for further purposes.

Besonders bevorzugt ist am Randträgerelement mindestens ein Querriegel befestigt, der als Randquerriegel ausgebildet ist, wobei das Randträgerelement eine federnd ausgebildete Lasche aufweist, die auf einer Seite des Randträgerelements, die vom Rand der Schalhaut abgewandt ist, angeordnet ist. Die Lasche ist dabei an der Schalhaut derart befestigt und ausgebildet, dass die Lasche bei einer Kraftbeaufschlagung der Lasche über die Querriegel der Biegerichtung der Schalhaut folgt. Das Randprofil ist an einem Rand der Schalhaut starr befestigt ist, wobei an dem Randträgerelement mindestens ein erfindungsgemäßer Randquerriegel befestigt ist. Das Randträgerelement weist eine federnd ausgebildete Lasche auf, die auf einer Seite des Randträgerelements, die vom Rand der Schalhaut abgewandt ist, angeordnet ist. Die Lasche ist an der Schalhaut derart befestigt, dass bei einem Andrücken der Lasche gegen die Schalhaut ein Biegemoment auf die Schalhaut ausgeübt wird. Dieses Randträgereiement kann auch ohne die beschriebenen Querriegel verwendet werden. Es hat den Vorteil, dass die der Schalhaut aufgezwungene Biegung bis an den Rand der Schalhaut aufgezwungen wird. Ohne eine derartige Lasche läuft eine aufgezwungene Biegung tangential am Rand der Schalhaut aus. D.h. die Biegung geht in einen mehr oder weniger breiten geraden Abschnitt am Rand der Schalhaut über. Mit der federnd ausgebildeten Lasche wird eine runde Ausformung bis an den Rand der Schalhaut ermöglicht. Im Randbereich ist die Schalhaut an sich biegesteif mit dem Randprofil des Randträgerelements verbunden, dennoch wird durch die federnd ausgebildete Lasche die Rundung bis an den Rand der Schalhaut fortgepflanzt. Das Andrücken der Lasche an die Schalhaut erfolgt bevorzugt über einen an dem Randträgerelement befestigten Randquerriegel. Durch die Randträgerprofile wird eine Aussteifung des Randes der Schalhaut ermöglicht, wobei gleichzeitig eine gewünschte Biegung bis an den Rand der Schalhaut weiter geführt wird.Particularly preferably at least one crossbar is attached to the edge support element, which is designed as edge crossbar, wherein the edge support element has a resiliently formed tab which is disposed on one side of the edge support element, which faces away from the edge of the formwork skin. The tab is fixed and formed on the formwork skin such that the tab at a force applied to the tab on the cross bar of the bending direction of the formwork follows. The edge profile is rigidly secured to an edge of the formwork, wherein at least one inventive edge crossbar is attached to the edge support element. The edge support member has a resiliently formed tab which is arranged on one side of the edge support element, which faces away from the edge of the formwork skin. The tab is attached to the formwork so that when the tab is pressed against the formwork, a bending moment is exerted on the formwork. This Randträgereiement can also be used without the crossbars described. It has the advantage that the bending imposed on the formwork is forced to the edge of the formwork. Without such a tab, a forced bend runs tangentially on the edge of the formwork. That is, the bend is in a more or less wide straight section on the edge of the formwork over. With the spring-trained tab a round shape is made possible up to the edge of the formwork. In the edge region, the formwork is rigidly connected to the edge profile of the edge support element, yet the rounding is propagated through the spring-trained tab up to the edge of the formwork. The pressing of the tab on the formwork skin is preferably carried out via an attached to the edge support element Randquerriegel. By the edge support profiles, a stiffening of the edge of the formwork is made possible, while a desired bend is continued to the edge of the formwork skin at the same time.

Weitere Vorteile ergeben sich aus der Beschreibung und den beigefügten Zeichnungen. Die vorstehend genannten und die noch weiter aufgeführten Merkmale der Erfindung können jeweils einzeln oder in Kombination miteinander verwendet werden. Die erwähnten Ausführungsformen sind nicht als abschließende Aufzählung zu verstehen, sondern haben vielmehr beispielhaften Charakter.Further advantages will be apparent from the description and the accompanying drawings. The above-mentioned and still further listed features of the invention may be used individually or in combination with each other. The mentioned embodiments are not to be understood as an exhaustive list, but rather have exemplary character.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf.die Zeichnung näher erläutert.

Fig. 1
zeigt einen erfindungsgemäß verwendbaren Querriegel mit zwei Querriegelenden, die jeweils ein Rundloch und ein Langloch in Querriegelendbereichen aufweisen;
Fig. 2
zeigt einen erfindungsgemäß verwendbaren Querriegel in einer Ausbildung als Randquerriegel;
Fig.3a u.3b
zeigen eine erfindungsgemäße Betonrundschalung in zwei unterschiedlichen Ansichten;
Fig. 4a
zeigt die erfindungsgemäße Betonrundschalung aus Fig. 3 in einem Querschnitt längs eines Querriegelverbunds, der aus mehreren erfindungsgemäßen Querriegeln zusammengesetzt ist;
Fig. 4b
zeigt einen Ausschnitt aus Fig. 4a; und
Fig. 5
zeigt einen Querschnitt eines Randträgerelements mit einer federnd ausgebildeten Lasche.
The invention will be explained in more detail by means of exemplary embodiments with reference to the drawing.
Fig. 1
shows a cross bar according to the invention with two cross bar ends, each having a round hole and a slot in Querriegelendbereichen;
Fig. 2
shows a crossbar which can be used according to the invention in a design as edge crossbar;
Fig.3a u.3b
show a concrete circular formwork according to the invention in two different views;
Fig. 4a
shows the concrete formwork according to the invention Fig. 3 in a cross section along a crossbar assembly, which is composed of several crossbars according to the invention;
Fig. 4b
shows a section Fig. 4a ; and
Fig. 5
shows a cross section of an edge support member with a resiliently formed tab.

Die Figuren der Zeichnung 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 drawing show the subject matter according to the invention in a highly schematized manner and are not to be understood to scale. The individual components of the article according to the invention are shown so that their structure can be well shown.

In Fig. 1 ist ein erfindungsgemäß verwendbarer Querriegel 1 mit einer trapezförmigen Riegelhalterung 2 im Bereich der Mitte des Querriegels und mit zwei Querriegelenden, die jeweils ein Langloch 3 und ein Rundloch 4 in Querriegelendbereichen 5 aufweisen, dargestellt. Die Querriegelendbereiche 5 befinden sich jeweils an einem Ende des Querriegels 1 und sind in Längsrichtung des Querriegels 1 gegenüberliegend angeordnet. Weiter sind am Querriegel 1 Befestigungspunkte 6 als Bohrlöcher ausgebildet. An diesen Befestigungspunkten 6 können beliebige Anschlusselemente fixiert werden. Zur Befestigung des Querriegels 1 an einer Betonrundschalung, z.B. einem Längsriegel der Betonrundschalung, weist die .Riegelhalterung 2 Durchbrüche 10 auf. Durch diese Durchbrüche 10 können z.B. Schrauben durchgeführt werden, um den Querriegel 1 mit der Betonrundschalung zu verschrauben. Die Riegelhalterung 2 ist aus einem U-förmigen Profil gebildet und über eine Schweißnaht 11 mit dem Querriegel 1 verbunden. Die als Verlängerungen der Schenkel des U-förmigen Profils ausgebildeten Querriegelendbereiche 5 weisen jeweils das Rundloch 4 und das Langloch 3 auf, die beide Verlängerungen durchdringen. Das Rundloch 4 und das Langloch 3 sind jeweils in Längsrichtung des Querriegels 1 nebeneinander angeordnet. Das Langloch 3 im Querriegelendbereich 5 ist jeweils näher am jeweiligen Querriegelende ausgebildet als das Rundloch 4. Die Kulissenform der Langlöcher 3 weist in deren Längsrichtung eine Biegung auf, die derart ausgebildet ist, dass sie der Form einer zu betonierenden Betonrundwandung entspricht.In Fig. 1 is a inventively usable cross bar 1 with a trapezoidal locking bracket 2 in the region of the center of the cross bar and with two cross bar ends, each having a slot 3 and a round hole 4 in Querriegelendbereichen 5 shown. The crossbar end regions 5 are located each at one end of the cross bar 1 and are arranged opposite one another in the longitudinal direction of the cross bar 1. Next, 1 attachment points 6 are formed as holes on the cross bar. At this attachment points 6 any connection elements can be fixed. For fixing the cross bar 1 to a concrete formwork, for example a longitudinal bar of the concrete formwork, the .Riegelhalterung 2 openings 10 on. By means of these openings 10, for example, screws can be made in order to screw the crossbar 1 to the concrete circular formwork. The bolt holder 2 is formed from a U-shaped profile and connected via a weld 11 with the cross bar 1. Trained as extensions of the legs of the U-shaped profile Querriegelendbereiche 5 each have the round hole 4 and the slot 3, which penetrate both extensions. The round hole 4 and the slot 3 are each arranged in the longitudinal direction of the cross bar 1 side by side. The slotted hole 3 in the cross bar end region 5 is formed closer to the respective cross bar end than the round hole 4. The slotted shape of the oblong holes 3 has in its longitudinal direction a bend which is designed such that it corresponds to the shape of a concrete wall to be concreted.

Fig. 2 zeigt einen erfindungsgemäß verwendbaren Querriegel, der als Randquerriegel 20 ausgebildet ist. Der Randquerriegel 20 weist ein Querriegelende mit ebenfalls einem Langloch 3 und einem Rundloch 4 in einem Querriegelendbereich 5, und eine Riegelhalterung 2 am dazu diametralen Querriegelende auf. Die Riegelhalterung 2 ist mit einem Trägerelement 21 im Randbereich einer Betonrundschalung verbunden. Weiter befindet sich an dem Randquerriegel 20 ein Randverbindungsrundloch 22, in das z.B. ein Bolzen eingeführt werden kann. Betonrundschalungselemente, die jeweils erfindungsgemäße Randquerriegel 20 aufweisen, können mittels einer bevorzugt teleskopierbaren Spindelanordnung über die Randverbindungsrundlöcher 22 der Randquerriegel 20 miteinander verbunden werden. In den Fign. 3a und 3b ist jeweils eine erfindungsgemäße Betonrundschalung 100 dargestellt. Fig. 3a zeigt eine Draufsicht der Betonrundschalung 100 und Fig. 3b zeigt eine perspektivische Schrägansicht der Betonrundschalung 100. Die Betonrundschalung 100 besteht aus zwei Teilbetonrundschalungen (Schalungselemente 110, 120). Die Schalungselemente 110, 120 weisen jeweils drei die Funktion von Längsriegeln wahrnehmende Trägerelemente 102 auf. In den Trägerelementen 102 sind Aussparungen 103, z.B. zur Durchführung von (nicht gezeigten) Betonschalungsankern, angeordnet. Die Trägerelemente 102 sind entsprechend der Ausformung der Riegelhalterungen 2 als trapezförmige Profile ausgeformt. Dadurch können die trapezförmigen Riegelhalterungen 2 passgenau und starr an die Trägerelemente 102, z.B. festgeschraubt, sein. Die an den Rändern in Biegungsrichtung der Schalungselemente 110, 120 angeordneten Randträgerelemente 104 sind als Randprofile ausgebildet. Die Betonrundschalung 100 weist an jedem Schalungselement 110, 120 eine Anordnung auf, die aus jeweils drei der beschriebenen Querriegel 1 zusammengesetzt ist. Dabei sind an jedem Trägerelement 102, über die Höhe der Betonrundschalung 100 gesehen, jeweils drei Querriegel 1 befestigt. An den Rändern der jeweiligen Schalungselemente 110, 120 sind, über die Höhe der Schalungselemente 110, 120 gesehen, jeweils drei Randquerriegel 20 befestigt. Benachbarte Querriegel 1 und zu Querriegel 1 benachbarte Randriegel 20 überlappen sich an aneinanderstoßenden Querriegelenden 106. Die überlappenden Querriegelenden 106 können z.B. übereinander geschoben sein. Ist dies der Fall, so können die Querriegelenden 106 alle identisch ausgeformt sein. Die Querriegelenden 106 können jedoch auch ineinander geschoben sein. Dann müssen die Querriegelenden 106 unterschiedlich dimensioniert sein, so dass ein schmaleres Querriegelende 106 in ein breiteres Querriegelende 106 eingeschoben werden kann. Im letzteren Fall kann entweder jeder Querriegel 1 ein schmaleres und ein breiteres Querriegelende 106 aufweisen oder es werden zwei unterschiedlich dimensionierte Querriegel 1 verwendet, wobei ein Querriegel 1 schmalere und der andere breitere Querriegelenden 106 aufweist. Die sich überlappenden Querriegelenden 106 überlappen derart, dass das Langloch des einen Querriegelendes über dem Rundloch des benachbarten Querriegelendes zum Liegen kommt. Dadurch werden von jeweils einem Paar von überlappenden Querriegelenden 106 zwei Bolzendurchführungen gebildet, wobei, aufgrund dessen, dass jeweils ein Langloch pro Bolzendurchführung vorhanden ist, die Bolzendurchführungen bei einem flexiblen Biegen der Schalhaut 101 erhalten bleiben. Bei dem in den Fign. rechten Schalungselement 120 sind die sich überlappenden Querriegelenden 106 jeweils über eine teleskopierbare Spindelanordnung 130 verbunden gezeigt. Dieses Schalungselement 120 ist also fertig montiert dargestellt. Die Spindelanordnung 130 besteht aus einer Spindel 131 und zwei Bolzen 132 mit Schraubgewindelöchern, in die die Spindel 131 eingeschraubt ist (siehe auch Fig. 4a). Die Bolzen 132 sind jeweils durch eine Bolzendurchführung hindurchgeführt. Die Spindel 131 verfügt auf einer Seite über ein Rechtsgewinde und auf der anderen Seite über ein Linksgewinde. Durch ein Verdrehen der Spindel 131 um ihre Längsachse wird, je nach Richtung der Verdrehung, die Spindelanordnung 130 teleskopiert, d.h. verlängert oder verkürzt, und es kann eine Krümmung des Querriegelverbunds eingestellt werden, wobei diese Krümmung der Schalhaut 101 aufgezwungen wird. Auch benachbarte Randquerriegel 20 der zwei Schalungselemente 110, 120 können mit einer derartigen Spindelanordnung 130 miteinander verbunden werden, wobei jeweils einer der zwei Bolzen in ein Randverbindungsloch 22 eines der benachbarten Randquerriegel 20 eingesteckt ist. Durch ein Teleskopieren der zusammen mit Randquerriegeln 20 verwendeten Spindelanordnung 130 kann der Übergang der Schalhäute 101 der aneinanderstoßenden Schalungselemente 110, 120 nahezu glatt, d.h. ohne kantigen Übergang, eingestellt werden. Es versteht sich, dass die aneinandergrenzenden Schalungselemente 110, 120 über bekannte Spannschlösser (in den Figuren nicht gezeigt) zusammengehalten werden. Fig. 2 shows a crossbar which can be used according to the invention, which is designed as edge crossbar 20. The edge cross bar 20 has a cross bar end with also a slot 3 and a round hole 4 in a Querriegelendbereich 5, and a locking bracket 2 at the diametrical cross bar end. The bolt holder 2 is connected to a carrier element 21 in the edge region of a concrete circular formwork. Next is located on the Randquerriegel 20 a Randverbindungsrundloch 22, in which, for example, a bolt can be inserted. Concrete circular formwork elements, which each have edge crossbars 20 according to the invention, can be connected to one another by means of a preferably telescopic spindle arrangement via the edge connection round holes 22 of the edge crossbars 20. In the FIGS. 3a and 3b in each case a concrete round formwork 100 according to the invention is shown. Fig. 3a shows a plan view of the concrete formwork 100 and Fig. 3b shows an oblique perspective view of the concrete formwork 100. The concrete formwork 100 consists of two Teilbetonrundschalungen (shuttering elements 110, 120). The formwork elements 110, 120 each have three the function of longitudinal bars perceiving carrier elements 102. In the support elements 102 recesses 103, for example, for the implementation of (not shown) concrete formwork anchors arranged. The carrier elements 102 are formed in accordance with the shape of the bolt holders 2 as trapezoidal profiles. As a result, the trapezoidal locking brackets 2 can be accurately and rigidly bolted to the carrier elements 102, for example. The edge support elements 104 arranged at the edges in the bending direction of the formwork elements 110, 120 are designed as edge profiles. The concrete circular formwork 100 has on each formwork element 110, 120 an arrangement which is composed of three each of the crossbar 1 described. In this case, three crossbars 1 are attached to each support element 102, seen over the height of the concrete circular formwork 100. At the edges of the respective formwork elements 110, 120, seen in each case over the height of the formwork elements 110, 120, three edge crossbars 20 are fastened. Adjacent crossbars 1 and edge bars 20 adjacent to transverse bars 1 overlap abutting crossbar ends 106. The overlapping crossbar ends 106 can be pushed over one another, for example. If this is the case, then the cross bar ends 106 can all be formed identically. However, the crossbar ends 106 may also be pushed one inside the other. Then the cross bar ends 106 must be dimensioned differently, so that a narrower cross bar end 106 can be inserted into a wider cross bar end 106. In the latter case, either each crossbar 1 may have a narrower and a wider crossbar end 106, or two different sized crossbars 1 may be used, with one crossbar 1 having narrower and the other wider crossbar 106 ends. The overlapping crossbar ends 106 overlap such that the slot of the one crossbar end comes to rest over the round hole of the adjacent crossbar end. As a result, each of a pair of overlapping crossbar ends 106 two bolt passages are formed, which, due to the fact that one slot per bolt bushing is present, the bolt passages remain in a flexible bending of the formwork 101. In the case of FIGS. Right formwork element 120, the overlapping crossbar ends 106 are each shown connected via a telescopic spindle assembly 130. This formwork element 120 is thus shown fully assembled. The spindle assembly 130 consists of a spindle 131 and two bolts 132 with screw threaded holes into which the spindle 131 is screwed (see also Fig. 4a ). The bolts 132 are each passed through a bolt passage. The spindle 131 has a right-hand thread on one side and a left-hand thread on the other side. By rotating the spindle 131 about its longitudinal axis, depending on the direction of rotation, the spindle assembly 130 telescoped, ie extended or shortened, and it can be set a curvature of the crossbar assembly, this curvature of the formwork skin 101 is imposed. Also adjacent Randquerriegel 20 of the two formwork elements 110, 120 can be connected to one another with such a spindle assembly 130, wherein one of the two bolts is inserted into an edge connection hole 22 of one of the adjacent Randquerriegel 20. By telescoping the spindle assembly 130 used together with Randquerriegeln 20, the transition of the Schalhäute 101 of the abutting shuttering elements 110, 120 almost smooth, ie without angular transition, can be adjusted. It is understood that the adjacent formwork elements 110, 120 are held together by means of known turnbuckles (not shown in the figures).

In Fig. 4a ist die erfindungsgemäße Betonrundschalung aus Fig. 3 in einem Querschnitt längs eines Querriegelverbunds, der aus mehreren beschriebenen Querriegeln 1, 20 zusammengesetzt ist, gezeigt. Fig. 4b zeigt einen Ausschnitt IV b aus Fig. 4a mit einem solchen Querriegel 1 und einem entsprechenden Randquerriegel 20. Der Querriegelverbund überspannt beide Schalungselemente 110, 120. Er besteht aus jeweils drei Querriegeln 1 und jeweils zwei Randquerriegeln 20 pro Schalungselement 110, 120. Die benachbarten Querriegel 1 und Querriegel 1 mit Randquerriegel 20 überlappen mit ihren Endbereichen. Im Bereich des rechten Schalungselements 120 sind die überlappenden Querriegelenden mit teleskopierbaren Spindelanordnungen 130 verbunden. An den Rändern der Schalhaut 101 in Biegungsrichtung ist jeweils ein Randträgerelement 104 befestigt. Die Randträgerelemente 104 (Randprofil) weisen in Richtung der Schalhaut 101, an der sie befestigt sind, jeweils eine federnde Lasche 203 auf. Die federnde Lasche 203 wird von dem Randquerriegel 20, der an dem zugehörigen Randträgerelement 104 befestigt ist, in Verbindung mit dem Schalhauthintergriff derart in Richtung der Schalhaut 101 gepresst, dass ein Biegemoment auf die Schalhaut 201 ausgeübt wird. Aneinandergrenzende Schalungselemente 110, 120 stoßen mit jeweils einem Randträgerelement 104 aneinander. In Fig. 4b ist gut zu erkennen, wie eine trapezförmige Riegelhalterung 2 auf einem trapezförmigen Trägerelement 102 passgenau befestigt ist.In Fig. 4a is the concrete formwork according to the invention Fig. 3 in a cross section along a crossbar assembly, which is composed of several described Querriegeln 1, 20 shown. Fig. 4b shows a section IV b Fig. 4a with such a crossbar 1 and a corresponding It consists of three cross bars 1 and two each Randquerriegeln 20 per formwork element 110, 120. The adjacent crossbar 1 and cross bar 1 with Randquerriegel 20 overlap with their end portions. In the area of the right-hand formwork element 120, the overlapping cross-bar ends are connected to telescopic spindle arrangements 130. At the edges of the formwork 101 in the bending direction in each case an edge support member 104 is attached. The edge support elements 104 (edge profile) in the direction of the formwork 101, to which they are attached, each have a resilient tab 203. The resilient tab 203 is pressed by the edge cross bar 20, which is attached to the associated edge support member 104, in conjunction with the Schalhauthintergriff in the direction of the formwork 101 such that a bending moment is exerted on the formwork 201. Adjoining formwork elements 110, 120 abut each other with one edge support element 104 each. In Fig. 4b is easy to see how a trapezoidal locking bracket 2 is mounted accurately on a trapezoidal support member 102.

Fig. 5 zeigt einen Querschnitt eines Randträgerelements 104 mit einer federnd ausgebildeten Lasche 203, wie dieser in Fig. 4a und Fig. 4b bereits dargestellt ist. Ein derartiges Randträgerelement 104 kann auch bei Betonrundschalungen verwendet werden, die nicht die beschriebenen Querriegel aufweisen. Eine Betonrundschalung mit einem derartigen Randträgerelement 104 stellt somit eine eigene Erfindung dar. Das Randträgerelement 104 ist als Randprofil ausgebildet. Weiter weist das Randträgerelement 104 die federnde Lasche 203 auf. Diese federnde Lasche 203 bildet zusammen mit der Schalhaut 101, über die die Schalhaut 101 mit dem Randträgerelement 104 befestigt ist, einen Abstandsraum 206. Das Randträgerelement 104 weist an der federnden Lasche 203 ein Befestigungsloch 204 auf. An diesem Befestigungsloch 204 kann die Lasche 203 mit der Schalhaut 201 verschraubt werden. Weiter weist das Randträgerelement 104 am Randprofil eine Schiene 202 auf, die eine Kante der Schalhaut 101 umfasst. Die Schiene 202 entspricht mit ihrer Längserstreckung auf der Innenseite, die der Schalhaut 101 direkt zugewandt ist, der Dicke der Schalhaut 101 und ist mit ihrer Außenkante nahezu bündig mit der Schalhaut 101. Wird ein Randquerriegel mit dem Randträgerelement 104 verschweißt, so drückt dieser im Bereich des Abstandsraumes 206 gegen die Lasche 203 . Da die Lasche 203 mit der Schalhaut 101 fest verschraubt ist, wird ein Biegemoment auf die Schalhaut 101 ausgeübt. Dadurch kann eine gewünschte Krümmung der Betonrundschalung bis an den Rand der Schalhaut 101 weitergeführt werden. Fig. 5 shows a cross section of an edge support member 104 with a resiliently formed tab 203, as in Fig. 4a and Fig. 4b already shown. Such an edge support element 104 can also be used in concrete circular formwork, which do not have the crossbars described. A concrete formwork with such an edge support element 104 thus represents a separate invention. The edge support element 104 is formed as an edge profile. Next, the edge support member 104 on the resilient tab 203. This resilient tab 203, together with the formliner 101, via which the formwork 101 is attached to the edge support member 104, a clearance space 206. The edge support member 104 has on the resilient tab 203, a mounting hole 204. At this attachment hole 204, the tab 203 can be screwed to the formwork 201. Next, the edge support member 104 on the edge profile on a rail 202 which includes an edge of the formwork 101. The rail 202 corresponds with its longitudinal extent on the inside, which faces the formwork 101 directly, the thickness of the formwork 101 and is almost flush with the outer skin edge of the formwork 101. If a Randquerriegel welded to the edge support member 104, so this presses in the region of the distance space 206 against the tab 203rd , Since the tab 203 is firmly screwed to the formwork 101, a bending moment is exerted on the formwork 101. As a result, a desired curvature of the concrete formwork can be continued up to the edge of the formwork 101.

Die Erfindung beschränkt sich nicht auf das vorstehend angegebene Ausführungsbeispiel. Vielmehr ist eine Anzahl von Varianten denkbar, welche auch bei grundsätzlich anders gearteter Ausführung von den Merkmalen der Erfindung Gebrauch machen. Vorgeschlagen wird ein Querriegel 1 zum Befestigen an einem Schalungselement 110,120 einer Betonschalung 100, bevorzugt einer Betonrundschalung, mit einem ersten Querriegelendbereich an einem in Längsrichtung des Querriegels 1 angeordneten ersten Querriegelende, wobei der Querriegel 1 mindestens ein Langloch und mindestens ein Rundloch aufweist, sowie eine Betonrundschalung aus Schalungselementen 110,120 mit einem derartigen Querriegel. Weiter ist an dem Querriegel eine Riegelhalterung 2, mit der der Querriegel 1 an dem Schalungselement 110,120 der Betonrundschalung befestigbar ist, angeordnet. Das Langloch 3 und das Rundloch 4 sind, bevorzugt in Längsrichtung des Querriegels 1 gesehen, nebeneinander in dem ersten Querriegelendbereich angeordnet.The invention is not limited to the embodiment given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution. Proposed is a cross bar 1 for attachment to a formwork element 110,120 a concrete formwork 100, preferably a concrete formwork, with a first Querriegelendbereich at a arranged in the longitudinal direction of the crossbar 1 first crossbar end, wherein the crossbar 1 has at least one slot and at least one round hole, and a concrete circular formwork from formwork elements 110,120 with such a cross bar. Next, a bolt holder 2, with which the crossbar 1 can be fastened to the formwork element 110, 120 of the concrete circular formwork, is arranged on the crossbar. The oblong hole 3 and the round hole 4 are, preferably seen in the longitudinal direction of the cross bar 1, arranged side by side in the first Querriegelendbereich.

Claims (12)

  1. Curved concrete formwork (100) having at least one formwork element (110, 120) and at least one first and one second transverse bolt (1), each comprising:
    - a first transverse bolt end region (5) at a first end of the transverse bolt disposed in the longitudinal direction of the transverse bolt (1), wherein the transverse bolt (1) has at least one elongated hole (3) and at least one round hole (4), and
    - a bolt fixture (2) for mounting the transverse bolt (1) to the formwork element (110, 120), wherein
    the elongated hole (3) and the round hole (4) are disposed next to each other in the first end region (5) of the transverse bolt, preferably in the longitudinal direction of the transverse bolt (1),
    characterized in that the transverse bolts (1) are mounted to the curved concrete formwork (100) in such a manner that one end of the first transverse bolt (1) at least partially overlaps an end of the second transverse bolt (1), wherein the elongated hole (3) of the end of the first transverse bolt overlaps the round hole (4) of the end of the second transverse bolt in such a manner that a first bolt duct is formed and the elongated hole (3) of the end of the second transverse bolt overlaps the round hole (4) of the end of the first transverse bolt in such a manner that a second bolt duct is formed.
  2. Curved concrete formwork according to claim 1, characterized in that at least one of the transverse bolts (1) comprises a second transverse bolt end region (5) at a second transverse bolt end disposed in the longitudinal direction of the transverse bolt (1) opposite to the first transverse bolt end, wherein the transverse bolt end regions (5) each have at least one round hole (4) which is preferably correspondingly disposed in the longitudinal direction of the transverse bolt (1) next to at least one elongated hole (3).
  3. Curved concrete formwork according to claim 2, characterized in that the bolt fixture (2) of the at least one transverse bolt has the shape of a hat or trapezoid and/or has openings (10) for passage of a screw for mounting the transverse bolt (1) to the formwork element (110, 120) and/or is disposed on the transverse bolt (1) in a central region of the transverse bolt (1) between the transverse bolt ends.
  4. Curved concrete formwork according to claim 1, characterized in that at least one of the transverse bolts is configured as an edge transverse bolt (20), wherein the bolt fixture (2) thereof is formed opposite to the first transverse bolt end thereof, as viewed in the longitudinal direction of the edge transverse bolt (20).
  5. Curved concrete formwork according to at least one of the claims 1 through 4, characterized in that at least one of the transverse bolts (1) is designed as a U-shaped profiled section, and the transverse bolt end regions (5) of the transverse bolt ends are each formed as an extension of both legs of the U-shaped profile, and the elongated hole (3) and the round hole (4) each penetrate through both extensions of the transverse bolt end, each in one transverse bolt end region (5) to form bolt ducts.
  6. Curved concrete formwork according to at least one of the claims 1 through 5, characterized in that the bolt fixture (2) of at least one transverse bolt is rigidly connected, preferably welded, to the transverse bolt (1) or is formed by an end of the transverse bolt (1).
  7. Curved concrete formwork according to at least one of the claims 1 through 6, characterized in that the rocker-shape of the elongated hole (3) of at least one transverse bolt has at least one bend in its longitudinal direction, wherein the shape of the bend corresponds to the round shape of a concrete wall to be formed by the concrete formwork (100).
  8. Curved concrete formwork according to at least one of the claims 1 to 7,
    characterized in that the transverse bolts (1) are connected at their overlapping transverse bolt ends, via a telescopable spindle configuration (130), to a spindle (131) which connects two bolts (132), wherein the bolts (132) are disposed in the first and second bolt ducts.
  9. Curved concrete formwork according to at least one of the claims 1 to 8, characterized in that the bolts (132) each have a threaded screw hole, wherein the spindle (131) is screwed into the threaded screw holes and one of the threaded screw holes is designed as a left-hand thread and the other as a right-hand thread.
  10. Curved concrete formwork (100) according to at least one of the claims 8 to 9, characterized in that the curved concrete formwork (100) is formed from formwork elements (110, 120) which comprise support elements (102) and edge support elements (104), which are mounted to a formwork shell (101), and to which the transverse bolts (1) are mounted via the bolt fixtures (2) thereof.
  11. Curved concrete formwork (100) according to claim 10, characterized in that the support elements (102) have recesses (103) for passage of tie bolts and/or for mounting working platforms and/or for connecting any connecting elements.
  12. Curved concrete formwork (100) according to claim 10 or 11 and claim 4, characterized in that the edge transverse bolts (20) are mounted to an edge support element (104), wherein the edge support element (104) comprises a resilient shackle (203), which is disposed on a side of the edge support element (104) facing away from the edge of the formwork shell (101), and wherein the shackle (203) is designed and mounted to the formwork shell (101) in such a manner that, when the transverse bolts (1) and the edge transverse bolts (20) load the shackle (203), the shackle (203) follows the bending direction of the formwork shell (101).
EP04802840A 2003-12-16 2004-11-27 Curved concrete formwork Not-in-force EP1704293B1 (en)

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DE10358886A DE10358886B4 (en) 2003-12-16 2003-12-16 Concrete formwork
PCT/DE2004/002631 WO2005059271A1 (en) 2003-12-16 2004-11-27 Transversal bolt for curved concrete formwork, and curved concrete formwork

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EP1704293A1 EP1704293A1 (en) 2006-09-27
EP1704293B1 true EP1704293B1 (en) 2008-02-20

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EP (1) EP1704293B1 (en)
CA (1) CA2549483C (en)
DE (1) DE10358886B4 (en)
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WO (1) WO2005059271A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111550035A (en) * 2019-03-05 2020-08-18 广西良创建筑铝模科技有限公司 Aluminum alloy template and PC component overlap joint structure
CN111550035B (en) * 2019-03-05 2021-08-17 广西良创建筑铝模科技有限公司 Aluminum alloy template and PC component overlap joint structure

Also Published As

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EP1704293A1 (en) 2006-09-27
ES2299890T3 (en) 2008-06-01
US7744057B2 (en) 2010-06-29
US20070108367A1 (en) 2007-05-17
WO2005059271A1 (en) 2005-06-30
DE10358886B4 (en) 2012-06-06
DE10358886A1 (en) 2005-07-21
CA2549483C (en) 2009-08-11
CA2549483A1 (en) 2005-06-30

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