Device for holding an anchor, support device, formwork element, formwork system and method for forming a concrete formwork

Abstract

The invention relates to a device (1) for holding an anchor (2) on a formwork element (3), having - a shaft device (4) that has, along its longitudinal extension (5), an anchor guide channel (6) for the anchor (2) to pass through, - a head plate (7) that is formed at a first end (8) of the shaft device (4) and closes the first end (8) of the shaft device (4) around the anchor guide channel (6), and - a foot portion (9) that is formed at a second end (10) of the shaft device (4) and which closes the second end (10) of the shaft device (4) around the anchor guide channel (6). According to the invention: - the foot portion (9) is designed for flush and / or sealing engagement in an anchor opening (11) in a formwork shell (12) of the formwork element (3); and - the foot portion (9) has a cross-section that corresponds at least to a cross-section of at least one casing element (13), in particular a casing tube (13a), into which the anchor (2) can be introduced.

Description

[0001] Device for holding an anchor, support device, formwork element, formwork system and method for forming a concrete formwork

[0002] This application claims priority from German patent application No. 10 2024 109 121 .5, the contents of which are incorporated herein by reference.

[0003] The invention relates to a device for holding an anchor on a formwork element, with a shaft device which has an anchor guide channel for passing through the anchor along its longitudinal extent, a head plate which is formed at a first end of the shaft device and which closes off the first end of the shaft device around the anchor guide channel, and a foot section which is formed at a second end of the shaft device and which closes off the second end of the shaft device around the anchor guide channel.

[0004] The invention further relates to a support device for an anchor nut of an anchor for a formwork element.

[0005] The invention also relates to a formwork element for concrete construction, which can be braced by means of at least one anchor, comprising: a formwork facing the concrete in use, a frame device on which the formwork can be fastened and which holds the formwork, wherein the frame device has a plurality of at least partially interconnected struts.

[0006] The invention further relates to a formwork system for concrete construction.

[0007] The invention also relates to a method for forming a concrete formwork which at least partially comprises a formwork space.

[0008] Concrete formwork is well known in the art. To create a concrete formwork, a formwork panel or the first formwork side is typically erected in the first step.

[0009] In a second step, reinforcements, particularly reinforcement mats or reinforcement cages, are arranged next to the formwork erected in the first step. The volume in which the reinforcements are arranged corresponds to a formwork space or backfill space completed in a later step. The formwork space is typically formed by two forms. Furthermore, it is known from the prior art that, in a third step, ducts and other equipment are arranged within the reinforcement or inserted into it.

[0010] Furthermore, it is known that in a fourth step, a closing formwork or a second formwork side is erected. This creates the formwork space already explained in connection with the second step.

[0011] In a fifth step, an anchor, i.e., a tension rod or tie rod, can be inserted through the formwork elements and the sheathing tube to connect the formwork elements. The sheathing tube allows the anchor to be removed after the concrete has hardened. Therefore, the anchor is not in contact with the concrete.

[0012] It is also known from the prior art that in a sixth step, the anchor is secured with two nuts, one for each side of the formwork. Liquid concrete can then be poured into the formwork space.

[0013] DE 10 2014 012 037 A1 discloses an anchoring device for a concrete wall formwork with two opposing formwork elements which can be connected and locked together by means of an anchor rod of the anchoring device.

[0014] From DE 34 05 976 A1 an anchor for concrete formwork with an external thread is known, comprising an anchor rod connecting two formwork elements arranged at a distance from one another, two anchor nuts which can be screwed onto the two ends of the anchor rod on the outside of the formwork elements and a sheath tube which receives the anchor rod between the two formwork elements.

[0015] EP 1 541 781 A1 discloses a formwork system with at least a first and a second formwork panel and a gap forming a wall or ceiling between the formwork panels and a first fastening element fastened to the first formwork panel and accessible from the gap.

[0016] EP 3 587 705 B1 discloses a vertical formwork which has at least one front formwork panel and one back formwork panel which are arranged opposite one another.

[0017] From EP 3 947 854 B1 a device for positioning and retaining a tension element within a profile of a formwork panel is known.

[0018] A disadvantage of the methods known from the prior art is that, once the closing formwork has been erected, anchoring equipment can no longer be introduced into the formwork space. The present invention is based on the object of creating a device that avoids the disadvantages of the prior art, in particular, allowing anchoring equipment to be introduced into a formwork space while simultaneously maintaining the stability of the formwork.

[0019] According to the invention, this object is achieved by a device having the features mentioned in claim 1.

[0020] The present invention is further based on the object of creating a support device for an anchor nut which avoids the disadvantages of the prior art, in particular enabling a reversible fastening of an anchor under high forces.

[0021] According to the invention, this object is achieved by a support device having the features mentioned in claim 9.

[0022] The present invention is further based on the object of creating a formwork element which avoids the disadvantages of the prior art, in particular enabling the introduction of anchor equipment into a formwork space while maintaining stability.

[0023] According to the invention, this object is achieved by a formwork element having the features mentioned in claim 10.

[0024] The present invention is further based on the object of creating a formwork system which avoids the disadvantages of the prior art, in particular enabling an efficient construction.

[0025] According to the invention, this object is achieved by a formwork system having the features mentioned in claim 18.

[0026] The present invention is further based on the object of creating a method for forming a concrete formwork which avoids the disadvantages of the prior art, in particular enabling an efficient implementation for forming the concrete formwork.

[0027] According to the invention, this object is achieved by a method having the features mentioned in claim 21.

[0028] The device according to the invention for holding an anchor on a formwork element comprises a shaft device which has an anchor guide channel for passing through the anchor along its longitudinal extent, a head plate which is formed at a first end of the shaft device and which closes off the first end of the shaft device around the anchor guide channel, and a foot section which is formed at a second end of the shaft device and which closes off the second end of the shaft device around the anchor guide channel.

[0029] According to the invention, it is provided that the foot section is designed for aligned and / or sealing engagement in an anchor opening of a formwork skin of the formwork element, and that the foot section has a cross section which corresponds at least to a cross section of at least one enveloping element, in particular a cladding tube, into which the anchor can be introduced.

[0030] The device according to the invention makes it possible to move anchoring equipment into a formwork space or backfill space located behind the formwork element, even after a concrete formwork, in particular a closing formwork, has been erected. The backfill space is preferably formed between a set formwork and a closing formwork.

[0031] The device according to the invention can reduce the size of an anchor opening in the formwork element.

[0032] This makes it possible to design the anchor opening in the formwork element as an assembly opening so large that the anchor equipment can be introduced into the formwork space through the formwork element.

[0033] The device itself is designed in such a way that the anchor can be pushed through the anchor guide channel.

[0034] The device according to the invention therefore serves as an insert into a sufficiently large opening in the formwork element, allowing the anchoring equipment to be inserted into the formwork space. The device reduces the cross-section of the assembly opening to a size through which only the anchor itself can be passed.

[0035] It can be provided that the shaft device is designed as a hollow cylinder.

[0036] In the device according to the invention, the foot section faces the filling space or formwork space when used as intended and has a diameter such that the anchor opening or assembly opening present in the formwork panel is closed.

[0037] The mounting opening is preferably not completely closed, but rather reduced to the cross-section of the anchor guide channel. The base section has a passage, in particular a bore, through which the anchor can be guided.

[0038] It can further be provided that the head plate has a diameter such that it can rest on at least two struts of the formwork element.

[0039] It can be provided that the head plate and the shaft device are designed as separate parts, wherein the head plate can be fastened to the first end of the shaft device.

[0040] Particularly preferably, the foot section is designed for flush and / or sealing engagement in an anchor opening of a formwork skin of the formwork element according to the invention, which will be described later.

[0041] Particularly preferably, the foot section has a cross-section which corresponds at least to a cross-section of at least one enveloping element, in particular a cladding tube, which is part of the formwork system described later and into which the anchor can be introduced.

[0042] The cladding tube is preferably a hollow tube through which the anchor or formwork anchor runs at a later time.

[0043] The formwork anchor preferably has the function of bracing the formwork, in particular of connecting two opposing formwork elements.

[0044] It may be provided that the cladding tube remains in the concrete while the formwork anchor is removed after the concrete has hardened.

[0045] The sheathing tube ensures that the formwork anchor has no contact points with the concrete, which means that it is not fixed in the concrete.

[0046] It can be provided that the area of ​​the anchor feedthrough channel located in the base section is smaller than the area of ​​the anchor feedthrough channel located outside the base section. This allows the angle of the anchor to be varied to a certain extent during its passage.

[0047] In an advantageous development of the device according to the invention, it can be provided that the anchor guide channel has a smaller cross-section than the casing element, at least in sections, in particular in the foot section.

[0048] Because the anchor guide channel has a smaller cross-section than the casing element, at least in sections, it can be ensured, on the one hand, that the anchor can be introduced into the casing element and, on the other hand, particularly when the casing element rests against the base section, it can be ensured that no liquid concrete gets into an area of ​​the anchor guide channel.

[0049] It can be provided that the anchor guide channel in the foot section has a smaller cross-section than the casing element.

[0050] Furthermore, it can be provided that the anchor feedthrough channel has a larger cross-section between the foot section and the head plate.

[0051] In an advantageous development of the device according to the invention, it can be provided that the foot section has a taper, in particular at least partially conical.

[0052] The tapered base section allows it to interact in a particularly advantageous manner with a correspondingly widened section of the formwork element, especially the formwork skin. In particular, the tapered base section allows the base section to insert itself self-centeringly into a correspondingly shaped opening in the formwork element. This allows the depth of the base section's seating in the formwork element to be determined, enabling precise formation of the aligned engagement.

[0053] Furthermore, a tapering of the foot section also enables an advantageously tight fit of the foot section in the formwork element, in particular when the device is subjected to force in the direction of the formwork element and / or when the formwork skin is pressed against the foot section when the formwork space is filled with concrete.

[0054] Preferably, the taper ends in a step that can lie flat against the formwork skin.

[0055] It can be provided that the shaft device and the foot section are preferably cylindrical or rotationally symmetrical.

[0056] Particularly preferably, the foot section has a larger cross-section than the shaft device.

[0057] It can be provided that a surface of the foot section aligned with the formwork skin has a diameter of 20 mm to 200 mm, preferably 50 mm to 150 mm, more preferably 80 mm to 120 mm, particularly preferably 100 mm.

[0058] The taper can have a plurality of shoulders and / or be stepped. In an advantageous development of the device according to the invention, the head plate can have several, preferably three, through-holes arranged around the armature guide channel, with each of the through-holes being adjoined by an elongated hole.

[0059] It is particularly advantageous if the head plate is provided with several, preferably three, through-openings which are arranged equidistant from one another on a circular curve running around the armature guide channel, wherein the through-openings are each adjoined by an elongated hole, preferably running in the circumferential direction of the circle.

[0060] Such a design of the head plate allows for the realization of a female or female part of a bayonet lock, which is configured to interact with a complementary male or male part formed on the formwork element. Such a male part will be described later.

[0061] This allows the device to be connected to the formwork element via the appropriately designed head plate using a type of bayonet lock.

[0062] In an advantageous further development of the device according to the invention, it can be provided that a securing device is arranged on the head plate, which is designed for reversible engagement in the formwork element, wherein the securing device is preferably designed as a reversibly fastenable pin.

[0063] The securing device allows the device to be held captively on the formwork element, particularly in conjunction with the bayonet lock described above.

[0064] If the safety device is designed as a spring-loaded safety device, in particular as a spring-loaded pin, the locking of the safety device can be automated, so that this does not require a separate step in the construction of the concrete formwork.

[0065] In an advantageous development of the device according to the invention, it can be provided that the head plate has at least one handle for rotating the device about a central axis of the anchor guide channel.

[0066] If the device, which can also be called an anchor window, has a handle, the device can be installed and removed particularly easily.

[0067] The handle is preferably arranged on the head plate of the device.

[0068] In particular, the handle is suitable for rotating the device, so that the aforementioned bayonet lock can be operated particularly easily. In an advantageous development of the device according to the invention, the head plate can be provided with a plurality, preferably three, concave receiving areas arranged on the side facing away from the base section.

[0069] The receiving areas serve to interact with the screws of the support device according to the invention. Due to their concave design, the receiving areas are designed to spatially secure the screws of the support device according to the invention and, in particular, to prevent them from twisting.

[0070] It can be provided that the receiving areas are formed by rings applied, in particular welded, to the head plate.

[0071] In an advantageous development of the device according to the invention, it can be provided that the foot section has a seal in the region of the anchor guide channel and / or is designed such that a seal, in particular an enveloping cone, can be applied to the foot section in a region around the anchor guide channel in order to seal the anchor guide channel against liquid concrete.

[0072] It can be provided that the seal is pressed into the opening of the armature guide channel in the foot section via a sleeve.

[0073] The seal is preferably made of an elastic material, in particular rubber.

[0074] The cross-section of an inner opening of the seal is preferably dimensioned such that the armature can be guided through the seal in sealing contact. In other words, the seal rests against the armature in a sealing and elastic manner.

[0075] It can be provided that the seal is positioned upstream of the opening of the base section for the anchor guide channel. In particular, it can be provided that the seal rests against the base section and is designed to interact with or engage a casing tube. This creates a casing space surrounding the anchor, which is sealed against liquid concrete and prevents the liquid concrete from penetrating the anchor guide channel.

[0076] In particular, it can also be provided that the base section is configured to interact with a separate seal, in particular one designed as an enveloping cone, as described above. In particular, it can be provided that the base section is flat in a region of a contact surface of the seal against the base section, thus enabling sealing contact between the seal, which in this case is not part of the device, and the base section.

[0077] The invention further relates to a support device having the features recited in claim 9. The support device according to the invention for an anchor nut of an anchor for a formwork element comprises a support plate with a through-opening for the passage of the anchor, wherein the support plate additionally has several, preferably three, threaded bores arranged around the through-opening, wherein in particular the threads of the threaded bores have a smaller pitch than a thread of the anchor nut.

[0078] It can be provided that the support plate has several, preferably three, threaded holes which are arranged equidistant from one another on a circular curve running around the through opening.

[0079] In cooperation with the receiving areas of the device according to the invention, which provide openings for adjusting screws arranged in the threaded holes, the support device according to the invention can be positioned on the formwork element in a rotationally secure manner.

[0080] The receiving areas can be designed with a larger diameter than the adjusting screws. This allows for slight back-and-forth movement while maintaining anti-twist security.

[0081] The support device according to the invention can also be referred to as a relief washer for the anchor nut.

[0082] The through-opening of the support device according to the invention is preferably designed as a central through-bore for the anchor or formwork anchor.

[0083] At least three threaded holes for adjusting screws are preferably provided radially around the preferably central through-opening.

[0084] It may be intended that the formwork anchor with the associated anchor nut is used in concreting processes in which very high tensile forces, in particular tensile forces exceeding 250 kN, act on the formwork anchor with the associated anchor nut.

[0085] Anchor nuts subjected to such high tensile forces can usually no longer be opened using normal disassembly tools.

[0086] The support device according to the invention offers the advantage that the prestressed anchor can be either completely or at least partially relieved of stress via adjusting screws inserted into the threaded holes of the support device, which preferably have a smaller thread pitch relative to the anchor thread. This allows the anchor to be at least almost completely relieved of stress and subsequently disassembled manually.

[0087] It can be provided that the device and / or the support device are made of metal, in particular of steel.

[0088] The invention further relates to a formwork element for concrete construction having the features mentioned in claim 10.

[0089] The formwork element according to the invention for concrete construction, which can be braced by means of at least one anchor, comprises at least one formwork skin facing the concrete in use, a frame device on which the formwork skin can be fastened and which holds the formwork skin, wherein the frame device has a plurality of at least partially interconnected struts.

[0090] According to the invention, at least one anchor opening designed as an assembly opening is provided in the formwork skin, which is arranged adjacent to at least two of the struts and which has an assembly cross-section which corresponds at least to a cross-section of a sheathing element, in particular a sheathing tube, into which the anchor can be introduced.

[0091] Because the assembly opening is located adjacent to the struts, the struts of the formwork element and thus the formwork element and the formwork as a whole are not weakened, since no openings are provided in the struts.

[0092] Furthermore, the mounting opening can be designed larger than the dimensions of the associated struts.

[0093] As a result, the struts can be made thinner compared to systems from the prior art, which leads to a saving in material and a lower weight of the formwork system according to the invention.

[0094] The formwork element according to the invention advantageously avoids having to make through openings exclusively in struts of the formwork element.

[0095] This can improve the statics of the formwork element.

[0096] Furthermore, an assembly opening can be formed that is geometrically larger than the outer dimensions of the associated strut. Particularly in the case of thick walls, for example, more than 80 cm thick, and high walls, for example, more than 4 m high, with a high concrete pour rate and a low number of anchor layers, which is desirable to increase system efficiency, the formwork element according to the invention enables the use of anchor units with large diameters.

[0097] In an advantageous further development of the formwork element according to the invention, it can be provided that a receiving plate is arranged on the adjacent struts, which has a receiving opening opposite the mounting opening, wherein the cross section of the receiving opening corresponds at least to the mounting cross section.

[0098] In a preferred embodiment, the head plate of the device according to the invention does not rest directly on the struts when interacting with the formwork element according to the invention, but rather via the receiving plate, which is preferably designed as an intermediate plate.

[0099] It can be provided that the receiving plate is applied to the struts and, in an assembled state, is arranged between the struts and the head plate of the device according to the invention during an interaction between the device according to the invention and the formwork element according to the invention.

[0100] Due to the inventive design of the formwork element, a load from the anchor or formwork anchor is not distributed via the formwork skin, which can in particular be designed as a steel skin, but flows directly via the adjacent struts, which are also referred to as activated anchor struts, onto the frame device.

[0101] In an advantageous further development of the formwork element according to the invention, it can be provided that the receiving plate has a plurality of retaining bolts which are arranged around the receiving opening.

[0102] If the mounting plate has retaining bolts, particularly in the form of screws, through which the head plate of the device according to the invention can be connected to the formwork element like a bayonet lock, this enables a particularly simple and reliable connection of the device according to the invention to the formwork element according to the invention. This forms the previously described male part of the bayonet lock.

[0103] It can be provided that the receiving plate has several, preferably three, retaining bolts which are arranged equidistant from one another on a circular curve running around the receiving opening.

[0104] This allows the force acting on the support plate and the head plate to be advantageously absorbed symmetrically. In an advantageous development of the formwork element according to the invention, the mounting opening can be provided with a widening, particularly conical, portion in the direction of the frame device.

[0105] The conical widening of the assembly opening in the formwork skin serves to advantageously interact with the conical taper, which can be provided in one embodiment of the device according to the invention. In conjunction with said taper, a particularly advantageous, flush and sealed engagement of the base section of the device according to the invention in the formwork skin of the formwork element according to the invention can be achieved.

[0106] In an advantageous development of the formwork element according to the invention, it can be provided that two assembly openings are arranged along a central axis of the formwork element.

[0107] If two assembly openings are arranged along the central axis, the formwork element can be anchored or braced with just two anchors, particularly if the frame device is appropriately braced, and thus efficiently and with little effort.

[0108] In an advantageous further development of the formwork element according to the invention, it can be provided that the frame device has a plurality of edge struts arranged along an edge region of the formwork skin as well as secondary struts located between the edge struts and connected to the edge struts.

[0109] If the formwork element is designed as a frame formwork element, the tensile force which is introduced onto the struts via the anchor can ultimately be fed to or distributed across the edge struts of the frame formwork element.

[0110] In an advantageous further development of the formwork element according to the invention, it can be provided that the frame device and / or the formwork skin are made of metal, in particular of steel.

[0111] If the formwork element is made of metal, in particular steel, the large-sized assembly opening according to the invention leads to a particularly large increase in efficiency.

[0112] In contrast to systems constructed from wooden struts and formwork, metal formwork elements are particularly dimensionally stable and resilient, but also very heavy. It is advantageous here if the anchoring equipment can be installed without moving the formwork element. In an advantageous development of the formwork element according to the invention, the at least one installation opening can be arranged adjacent to an intersection point of two, preferably diagonally extending, struts.

[0113] By arranging the mounting openings not in the respective strut itself, but at a distance from the strut, it can be carried out particularly advantageously if the at least one mounting opening is arranged near an intersection point of different struts, for example two diagonal struts, or an intersection point of a horizontal strut and / or a vertical strut.

[0114] The invention further relates to a formwork system having the features mentioned in claim 18.

[0115] The formwork system according to the invention for concrete construction comprises at least one formwork element according to the invention and a device according to the invention, wherein the base section is designed for flush and / or sealed engagement in the assembly opening. Optionally, the formwork system according to the invention also comprises a support device according to the invention.

[0116] The formwork system according to the invention has the advantage that large anchor rods can be used at a small number of locations within the respective formwork elements. This requires only a few anchor points, and the efficiency of the formwork system is increased by reducing labor and costs due to the smaller number of anchors compared to conventional systems.

[0117] By means of the formwork system according to the invention, walls of great wall thickness can be formed without lost anchor components, since two-part anchor systems with lost connecting elements can be dispensed with.

[0118] Because no struts are weakened by openings integrated into the struts in the formwork element of the formwork system according to the invention, flatter lightweight elements can be designed for use as formwork elements.

[0119] It can be provided that the formwork element has a surface density of 50 to 150 kg / m 2 , preferably 85 to 95 kg / m 2 , has.

[0120] The formwork system according to the invention can be used particularly advantageously in a technical field of climbing technology. The use of flatter formwork leads to increased ergonomics and accessibility during formwork work.

[0121] In the formwork system according to the invention, it can be provided that the head plate of the device has a diameter such that the head plate can be arranged resting on at least two struts of the formwork element. In an advantageous development of the formwork system according to the invention, it can be provided that the through-openings and the retaining bolts are arranged such that they can be brought into engagement with one another, and / or the receiving areas are arranged such that they can be oriented opposite the threaded holes.

[0122] Preferably, the receiving areas are arranged such that they can be oriented opposite the threaded holes and concentrically to one another.

[0123] By arranging the through-holes and the retaining bolts in a complementary manner, a bayonet lock can be created between the device and the formwork element. Furthermore, if the receiving areas are designed to complement the threaded holes of the support device, a torsion-proof support for an anchor nut can be achieved.

[0124] In an advantageous development of the formwork system according to the invention, at least one anchor for bracing the at least one formwork element and / or at least one enveloping element, in particular a enveloping tube, into which the anchor can be introduced, can be provided.

[0125] If the anchor and at least one sheathing element and preferably also a sheathing cone are provided as part of the formwork system as anchor equipment, it is particularly advantageous if the dimensions of the assembly opening and / or the base section are designed to be so large in their cross-section that the sheathing tube and / or the sheathing cone can be introduced into the formwork space through the assembly opening and the assembly opening can be closed by the base section of the device in such a way that only the anchor guide channel remains as an opening.

[0126] The invention further relates to a method for forming a concrete formwork having the features mentioned in claim 21.

[0127] The method according to the invention for forming a concrete formwork which at least partially encloses a formwork space comprises at least the following steps: a) providing at least one formwork element according to the invention, wherein at least two formwork elements are provided to form the formwork space, wherein the formwork elements are arranged opposite one another, b) providing at least one device according to the invention, wherein the base section is designed for aligned and / or sealed engagement in the assembly opening, c) providing at least one anchor, as well as at least one sheathing tube and / or at least one sheathing cone, d) introducing the anchor, as well as the sheathing tube and / or the sheathing cone, into the formwork space through the assembly opening, e) passing the anchor through the anchor guide channel of the device according to the invention such that the base section engages in the assembly opening,f) Fixing the head plate to the frame device, g) Tightening the anchor in such a way that both formwork elements are clamped together by the anchor.,

[0128] In the method according to the invention, large necessary diameters can be provided for an anchor unit formed from a cladding tube, a sealing attachment or a cladding cone and the anchor.

[0129] In step a), only one of the formwork elements must be designed as a formwork element according to the invention and configured to receive the device according to the invention. The other formwork elements can also be conventional or differently designed formwork elements. However, several or all of the formwork elements can also be formwork elements according to the invention.

[0130] In an advantageous development of the method according to the invention, it can be provided that in step d) for pre-assembly, two sheath cones are arranged on both sides of the sheathing tube and the anchor is inserted into the sheathing tube, so that the anchor, the sheathing tube and the sheath cones are introduced into the formwork space through the assembly opening in the pre-assembled state.

[0131] Since the cross-section of the assembly opening is not limited by the dimensions of the struts in the method according to the invention, walls of any thickness can be formed using the method according to the invention. This is particularly due to the fact that the assembly openings and the base section of the device are large enough to allow anchoring equipment, preferably in a pre-assembled state, to be subsequently pushed through the opening.

[0132] In an advantageous development of the method according to the invention, it can be provided that the head plate is fastened to the frame device in step f) by rotating it around the anchor guide channel by means of a bayonet lock.

[0133] In particular, the use of a bayonet lock allows the device to be held securely to the formwork element.

[0134] In an advantageous development of the method according to the invention, it can be provided that the anchor is clamped in step g) by means of an anchor nut, wherein a support device according to the invention is arranged between the head plate and the anchor nut, in which adjusting screws or support screws are screwed in a uniformly projecting manner in the threaded bores.

[0135] Particularly preferred is an embodiment of the method according to the invention with the following steps: I. Erecting a formwork which is preferably, but not necessarily, equipped with the assembly opening according to the invention for engagement with a device according to the invention.

[0136] II. Erection of a closing formwork which is equipped with an assembly opening according to the invention for a device according to the invention.

[0137] III. Optional: Insertion of reinforcements into the space between the initial formwork and the closing formwork, whereby the space corresponds to a later formwork space.

[0138] IV. Insertion of anchor equipment, in particular a sheathing tube and / or at least one filling cone and / or at least one seal through the assembly openings of the formwork elements.

[0139] V. Closing the assembly openings of the formwork elements, in particular the closing formwork, using a device according to the invention in the temporary formwork and / or in the closing formwork. The devices according to the invention are held captively on the formwork element, which is preferably designed as a frame formwork panel, via a bayonet lock, preferably by means of a spring-loaded safety catch. The devices according to the invention rest either directly on the struts of the formwork elements or, preferably, on the struts via the support plate.

[0140] VI. Inserting an anchor or anchor rod through the anchor guide channel using the inventive devices of the set formwork and / or the closing formwork. Alternatively or additionally, the anchor rod can also be pre-assembled and inserted directly in step IV, together with an associated sheathing tube and optionally additional anchoring equipment.

[0141] VII. Applying a support device according to the invention to an end part of the anchor and placing the support device according to the invention on the head plate of the respective devices according to the invention.

[0142] VIII. Screwing an anchor nut onto the anchor and tightening the anchor nut in such a way that concrete can be poured into the formwork space or backfill space, whereby the loads occurring can be distributed via the anchor, the anchor nut and the support device to the struts and ultimately preferably to the edge struts of the formwork element.

[0143] The embodiments of the method according to the invention and its embodiments are preferably carried out in the described and chronological order shown. However, modified chronological orders are also possible and part of the invention.

[0144] The method according to the invention is particularly well suited for use in climbing technology, since there is no possibility of removing the closing formwork far enough from the subsequent backfilling space to create space for inserting a casing pipe and / or other anchor equipment into the backfilling space.

[0145] The method according to the invention and its embodiments are particularly suitable for climbing technology, in which formwork is lifted from floor to floor in an already erected state. Features described in connection with one of the objects of the invention, namely the device according to the invention, the support device according to the invention, the formwork element according to the invention, the formwork system according to the invention, or the method according to the invention, can also be advantageously implemented for the other objects of the invention. Likewise, advantages mentioned in connection with one of the objects of the invention can also be understood to relate to the other objects of the invention.

[0146] It should also be noted that terms such as "comprising," "having," or "with" do not exclude other features or steps. Furthermore, terms such as "a" or "the," which refer to a singular number of steps or features, do not exclude a plurality of features or steps—and vice versa.

[0147] In a purist embodiment of the invention, however, it may also be provided that the features introduced in the invention with the terms "comprising," "having," or "with" are listed exhaustively. Accordingly, one or more lists of features may be considered complete within the scope of the invention, for example, for each claim. The invention may, for example, consist exclusively of the features mentioned in claim 1.

[0148] It should be noted that terms such as “first” or “second” etc. are used primarily for reasons of distinguishing between respective device or process features and are not necessarily intended to indicate that features are mutually dependent or related to one another.

[0149] In the following, embodiments of the invention are described in more detail with reference to the drawing.

[0150] The figures each show preferred embodiments in which individual features of the present invention are illustrated in combination with one another. Features of one embodiment can also be implemented independently of the other features of the same embodiment and can therefore be readily combined by a person skilled in the art to form further useful combinations and subcombinations with features of other embodiments.

[0151] In the figures, functionally identical elements are provided with the same reference numerals.

[0152] It shows:

[0153] Figure 1 shows a schematic representation of a possible embodiment of a device according to the invention in a perspective view; Figure 2 shows a schematic representation of the embodiment of the device according to the invention according to Figure 1 in a sectional view;

[0154] Figure 3 is a schematic representation of another possible embodiment of the device according to the invention in a sectional view;

[0155] Figure 3a is a schematic representation of another possible embodiment of a device according to the invention in a perspective view;

[0156] Figure 4 is a schematic representation of a possible embodiment of the support device according to the invention in a perspective front view;

[0157] Figure 5 is a schematic representation of the embodiment of the support device according to the invention according to Figure 4 in a perspective rear view;

[0158] Figure 6 is a schematic representation of a possible embodiment of a formwork element according to the invention in a perspective view;

[0159] Figure 7 is a schematic representation of the embodiment of the formwork element according to the invention according to Figure 6 in a detail view;

[0160] Figure 8 is a schematic representation of the embodiment of the formwork element according to the invention according to Figure 6 in a front view;

[0161] Figure 9 is a schematic representation of the embodiment of the formwork element according to the invention according to Figure 6 in a rear view;

[0162] Figure 10 is a schematic representation of the embodiment of the formwork element according to the invention according to Figure 6 in a perspective side view;

[0163] Figure 11 is a schematic representation of another possible embodiment of a formwork element according to the invention in a perspective view;

[0164] Figure 12 is a schematic representation of the embodiment of the formwork element according to the invention according to Figure 11 in a sectional view;

[0165] Figure 13 is a schematic representation of the embodiment of the formwork element according to the invention shown in Figure 11 in a front view; Figure 14 is a schematic representation of the embodiment of the formwork element according to the invention shown in Figure 11 in a rear view;

[0166] Figure 15 is a schematic representation of the embodiment of the formwork element according to the invention according to Figure 11 in a perspective side view;

[0167] Figure 16 is a schematic representation of a possible embodiment of a formwork system according to the invention in a perspective view;

[0168] Figure 17 is a schematic representation of the embodiment of a formwork system according to the invention according to Figure 16 in a side view;

[0169] Figure 18 is a schematic representation of the embodiment of a formwork system according to the invention according to Figure 16 in an enlarged sectional view;

[0170] Figure 19 is a schematic representation of the interaction between the device according to the invention, the support device according to the invention and the formwork element according to the invention;

[0171] Figure 20 is a schematic representation of the interaction between the device according to the invention, the support device according to the invention and the formwork element according to the invention;

[0172] Figure 21 is a schematic representation of the interaction between the device according to the invention, the support device according to the invention and the formwork element according to the invention;

[0173] Figure 22 is a schematic representation of another possible embodiment of a formwork system according to the invention in a side view; and

[0174] Figure 23 is a block diagram representation of a possible embodiment of a method according to the invention.

[0175] Figure 1 shows a schematic representation of a possible embodiment of a device 1 for holding an anchor 2 (not shown, see Figure 16) on a formwork element 3 (not shown, see Figure 6). The device 1 comprises a shaft device 4, which has an anchor guide channel 6 along its longitudinal extent 5 for the passage of the anchor 2. The device 1 further comprises a head plate 7, which is formed at a first end 8 of the shaft device 4 and which closes off the first end 8 of the shaft device 4 around the anchor guide channel 6. The device 1 further comprises a foot section 9, which is formed at a second end 10 of the shaft device 4 and which closes off the second end 10 of the shaft device 4 around the anchor guide channel 6.

[0176] The foot section 9 is designed for flush and / or sealing engagement in an anchor opening 11 (not shown, see Figure 8) of a formwork skin 12 (not shown, see Figure 6) of the formwork element 3.

[0177] Furthermore, the foot section 9 has a cross section which corresponds at least to a cross section of at least one sheathing element 13 (not shown, see Figure 16), in particular a sheath tube 13a (not shown, see Figure 16), into which the anchor 2 can be introduced.

[0178] It can be provided that the cross section, in particular with regard to a diameter, of the foot section 9 is minimally or slightly, in particular between 2% and 20%, preferably 10% larger than the cross section of the at least one sheathing element 13. In this way, an insertability of the sheathing element 13 through the cross section of the foot section 9 can be ensured.

[0179] In the embodiment of the device 1 shown in Figure 1, the foot section 9 preferably has a, in particular conical, taper 14.

[0180] According to the embodiment shown in Figure 1, the head plate 7 preferably has several, in particular three, through-openings 15 which are arranged around the armature guide channel 6, wherein an elongated hole 16 is connected to each of the through-openings 15.

[0181] Figure 1 further shows a preferred embodiment of the device 1, in which a securing device 17 is arranged on the head plate 7, which is designed for reversible engagement with the formwork element 3. The securing device 17 is preferably designed as a reversibly attachable pin 17a.

[0182] Furthermore, in the embodiment shown in Figure 1, the head plate 7 preferably has at least one handle 18 for rotating the device 1 about a central axis of the armature guide channel 6.

[0183] In the embodiment of the device 1 shown in Figure 1, the head plate 7 preferably has a plurality, preferably three, concave receiving areas 19 arranged on the side facing away from the foot section 9.

[0184] Figure 2 shows a schematic representation of the embodiment of the device 1 according to Figure 1 in a sectional view.

[0185] With regard to the reference numerals, reference is made to Figure 1. In the illustration according to Figure 2, it can be seen that the securing device 17 is preferably designed as a reversibly attachable pin 17a.

[0186] In the embodiment of the device 1 shown in Figure 2, it can also be seen that the armature guide channel 6 is preferably designed such that it has a smaller cross-section than the sheathing element 13, at least in sections, in particular in the foot section 9. As a result, the sheathing element 13 can rest against the foot section 9.

[0187] At least in the area of ​​the base section 9, the anchor feedthrough channel 6 preferably has a smaller cross-section than the casing element 13. In a central area, between the head plate 7 and the base section 9, the cross-section is preferably larger.

[0188] Figure 3 shows a schematic representation of another possible embodiment of the device 1 in a sectional view.

[0189] In the embodiment of the device 1 shown in Figure 3, the foot section 9 has at least one seal 20 in the region of the armature guide channel 6.

[0190] Alternatively or additionally, it can be provided that the foot section 9 is designed such that in an area around the anchor guide channel 6, a seal 20, in particular an enveloping cone 21, can be applied to the foot section 9 in order to seal the anchor guide channel 6 against liquid concrete 22 (not shown, see for example Figure 16).

[0191] For further reference numerals, please refer to Figures 1 and 2.

[0192] Figure 3a shows a schematic representation of another possible embodiment of the device 1 in a perspective view.

[0193] In the embodiment shown in Figure 3a, the taper 14 of the foot section 9 ends in a shoulder 14a, which enables a deformation-free force transmission.

[0194] With regard to the further reference symbols, reference is made to Figures 1, 2 and 3.

[0195] In the embodiments illustrated in Figures 1, 2, 3, and 3a, the shaft device 3 and the foot section 9 are preferably cylindrical or rotationally symmetrical. Particularly preferred is the situation illustrated in the embodiments, in which the foot section 9 has a larger cross-section than the shaft device 4.

[0196] Figure 4 shows a schematic representation of a possible embodiment of a support device 23 for an anchor nut 24 of the anchor 2 for the formwork element 3. The support device 23 comprises a support plate 25 with a through-opening 26 for the passage of the anchor 2, wherein the support plate 25 has several, preferably three, threaded bores 27 which are arranged around the through-opening 26.

[0197] The threaded holes 27 preferably have a finer thread or a smaller thread pitch compared to the anchor nut 24 or the anchor 2, which is why the operation is greatly simplified or even made possible in this way.

[0198] Figure 5 shows a schematic representation of the embodiment of the support device 23 according to Figure 4 in a perspective rear view.

[0199] For the reference numerals, please refer to Figure 4.

[0200] In the illustrated embodiment, the anchor nut 24 serves as a link between the support device 23 and the anchor 2.

[0201] In the embodiments shown in Figures 4 and 5, adjusting screws 28 are inserted into the threaded holes 27.

[0202] For installation, it is particularly advantageous if the adjusting screws 28 are subjected to the tensile stress by the anchor 2 when screwed in. Then, after the concrete has hardened, the anchor 2 can be relieved by loosening the adjusting screws 28 and turning them back.

[0203] Figure 6 shows a schematic representation of a possible embodiment of a formwork element 3 for concrete construction, which can be braced by means of at least one anchor 2. The formwork element 3 comprises a formwork skin 12 facing the concrete 22 during use, a frame device 31 to which the formwork skin 12 can be fastened and which holds the formwork skin 12. The frame device 31 has a plurality of at least partially interconnected struts 32.

[0204] At least one anchor opening 11 designed as an assembly opening 33 is provided in the formwork skin 12, which is arranged adjacent to at least two of the struts 32 and which has an assembly cross-section which corresponds at least to a cross-section of the enveloping element 13, in particular of the enveloping tube 13a, into which the anchor 2 can be introduced.

[0205] In the embodiment of the formwork element 3 shown in Figure 6, a receiving plate 34 is arranged on the adjacent struts 32. This receiving plate has a receiving opening 35 opposite the mounting opening 33, wherein the cross section of the receiving opening 35 corresponds at least to the mounting cross section. The formwork element 3 shown in Figure 6 preferably has dimensions of 4050 mm x 2000 mm x 125 mm.

[0206] Figure 7 shows a schematic representation of the embodiment of the formwork element 3 according to Figure 6 in a detail view.

[0207] In the enlarged view of the adjacent struts 32 and the receiving plate 34, it can be seen that the receiving plate 34 preferably has a plurality of retaining bolts 36 which are arranged around the receiving opening 35.

[0208] It can also be seen that a short strut 32 is provided to form a strut triangle at the intersection of the diagonal struts 32.

[0209] Figure 8 shows a schematic representation of the embodiment of the formwork element 3 according to Figure 6 in a frontal view.

[0210] According to the embodiment shown in Figure 8, it can be seen that preferably two mounting openings 33 are arranged along a central axis of the formwork element 3.

[0211] Figure 9 shows a schematic representation of the embodiment of the formwork element 3 according to Figure 6 in a rear view.

[0212] From the illustration according to Figure 9 it can be seen that the frame device 31 has a plurality of edge struts 37 arranged along an edge region of the formwork skin 12 as well as secondary struts 38 located between the edge struts 37 and connected to the edge struts 37.

[0213] The adjacent struts 32 can thus be designed as edge struts 37 and / or as secondary struts 38. It can also be provided that one of the adjacent struts 32 is an edge strut 37, while a second of the adjacent struts 32 is a secondary strut 38, or vice versa.

[0214] From the embodiment shown in Figure 9 it is further apparent that the at least one mounting opening 33 is preferably arranged adjacent to an intersection point of two, preferably diagonally extending struts 32, 38.

[0215] Figure 10 shows a schematic representation of the embodiment of the formwork element 3 according to Figure 6 in a perspective side view.

[0216] In the embodiment shown in Figure 10, the edge struts 37 can be seen. Furthermore, in the embodiment shown in Figure 10, it is provided that the frame device 31 and / or the formwork skin 12 of the formwork element 3 are preferably made of metal, in particular steel.

[0217] Furthermore, the receiving plate 34 and the retaining bolts 36 as well as the device 1 and its components as well as the support device 23 and its components are preferably made of metal, in particular of steel.

[0218] Figures 11 to 15 show representations of another possible embodiment of the formwork element 3 in various views. The views are chosen analogously to the views of the first embodiment according to Figures 6 to 10.

[0219] Preferably, the formwork element 3 according to Figure 11 has dimensions of 4050 mm x 1000 mm x 125 mm.

[0220] In the formwork element shown in Figures 11 to 15, the secondary struts are not arranged diagonally, but at right angles to each other. The mounting openings 33 are located between two adjacent, parallel struts 32. In the examples shown in Figures 11 to 15, the support plates 34 rest on the adjacent, parallel struts 32 and are secured to them.

[0221] Figure 16 shows a schematic representation of a possible embodiment of a formwork system 40 in a perspective view.

[0222] The formwork system 40 for concrete construction comprises at least one formwork element 3, as explained in connection with Figures 6 to 15, and at least one device 1, as explained in connection with Figures 1 to 3a. In the device 1 in the formwork system 40, the base section 9 is designed for flush or sealed engagement in the assembly opening 33.

[0223] In the embodiment of the formwork system 40 shown in Figure 16, the support device 23 is also preferably provided, as explained in connection with Figures 4 to 5.

[0224] The formwork system 40 is used to produce a concrete formwork 43 to form a formwork space 44.

[0225] Figure 17 shows a schematic representation of the embodiment of the formwork system 40 according to Figure 16 in a side view. Figure 18 shows a schematic representation of the embodiment of the formwork system 40 according to Figure 16 in an enlarged sectional view.

[0226] Preferably, the receiving areas 19 are designed and arranged such that they are adapted to receive the adjusting screws 28.

[0227] Figures 19 to 21 show schematic representations of the interaction between the device 1, the support device 23 and the formwork element 3 according to the invention in the assembled state.

[0228] In the enlarged view shown in Figure 19, it can be seen that the through-openings 15 and the retaining bolts 36 are preferably arranged such that they can be brought into engagement with one another.

[0229] Furthermore, the receiving areas 19 are preferably arranged such that they can be oriented opposite the threaded bores 27 and preferably concentrically to one another.

[0230] From the enlarged sectional view shown in Figure 20, it is also apparent that the formwork system 40 preferably comprises at least one anchor 2 for bracing the at least one formwork element 3. Furthermore, the formwork system 40 also comprises the at least one enveloping element 13, in particular the enveloping tube 13a and the enveloping cone 21, into which the anchor 2 can be inserted.

[0231] In particular, it can be seen from Figure 21 that the enveloping cone 21 can be designed such that it seals the anchor guide channel 6 against the concrete 22.

[0232] Furthermore, it can be seen from Figure 21 that the taper 14 of the foot section 9 is preferably designed to engage in a widening 41.

[0233] It is therefore particularly advantageous if the formwork skin 12 has the, in particular, conical widening 41 in the area of ​​the assembly opening 33 in the direction of the frame device 31, as shown in Figure 21.

[0234] Figure 22 shows a schematic representation of another possible embodiment of the formwork system 40 in a side view when used in climbing technology.

[0235] The formwork system 40 is integrated into a hanging or standing guide system 42 and can be lifted from floor to floor.

[0236] Furthermore, the embodiment shown in Figure 22 includes stairs and railings to ensure easy assembly. Figure 23 shows a block diagram of a possible embodiment of a method for forming the concrete formwork 43.

[0237] The method for forming the concrete formwork, which at least partially encompasses the formwork space 44, includes at least the following steps:

[0238] At least one formwork element 3 is provided in a provision block 50, as described in connection with Figures 6 to 22. To form the formwork space 44, at least two formwork elements 3 are provided, wherein the formwork elements 3 are arranged opposite one another.

[0239] It can be provided that at least one of the formwork elements 3 is not designed according to the invention, in particular is a standard element.

[0240] Also within the scope of the provision block 50, at least one device 1, as explained in connection with Figures 1 to 22, is provided, wherein the foot section 9 is designed for aligned and / or sealing engagement in the mounting opening 33.

[0241] Also provided as part of the provision block 50 are at least one anchor 2 and at least one cladding tube 13a and / or at least one cladding cone 21.

[0242] In an anchor block 51, the anchor 2 as well as the sheathing tube 13a and / or the sheathing cone 21 are introduced into the formwork space 44 through the assembly opening 33.

[0243] The device 1 is also introduced into the formwork within the anchor block 51 and the anchor 2 is guided through the anchor guide channel 6 in such a way that the foot section 9 engages in the assembly opening 33.

[0244] The head plate 7 is secured to the frame device 31 within a clamping block. Furthermore, the anchor 2 is clamped in such a way that the formwork elements 3 are clamped together by the anchor 2.

[0245] Preferably, within the framework of the anchor block 51, two sheathing cones 21 are already arranged on both sides of the sheathing tube 13a for pre-assembly, and the anchor 2 is inserted into the sheathing tube 13a. As a result, the anchor 2, the sheathing tube 13a, and the sheathing cones 21 are introduced in the pre-assembled state into the formwork space 44 through the assembly opening 33.

[0246] Within the framework of the clamping block 52, the head plate 7 is preferably fastened to the frame device 31 by means of a bayonet lock by rotating it around the armature guide channel 6. In the exemplary embodiment illustrated in Figures 1 to 22, the bayonet lock was realized by means of the through-openings 15 and the retaining bolts 36 as well as the elongated holes 16. Furthermore, within the framework of the clamping block 52, it can be provided that the armature 2 is preferably clamped by means of the armature nut 24. Preferably, the support device 23, as described in connection with Figures 4 and 5, is arranged between the head plate 7 and the armature nut 24. Preferably, the adjusting screws 28 are screwed into the threaded bores 27 in a uniformly projecting manner.

[0247] List of reference symbols

[0248] 1 device

[0249] 2 anchors

[0250] 3 formwork element

[0251] 4 Shaft device

[0252] 5 Longitudinal extension

[0253] 6 Anchor guide channel

[0254] 7 Headstock

[0255] 8 first end

[0256] 9 Foot section

[0257] 10 second end

[0258] 11 Anchor opening

[0259] 12 formwork

[0260] 13 Envelope element

[0261] 13a Sheath tube

[0262] 14 Rejuvenation

[0263] 14a paragraph

[0264] 15 through openings

[0265] 16 slot

[0266] 17 Safety device

[0267] 17a pen

[0268] 18 handle

[0269] 19 Recording area

[0270] 20 Seal

[0271] 21 Envelope cone

[0272] 22 liquid concrete

[0273] 23 Support device

[0274] 24 Anchor nut

[0275] 25 support plate

[0276] 26 passage opening

[0277] 27 threaded hole

[0278] 28 adjusting screws

[0279] 31 Frame setup

[0280] 32 strut

[0281] 33 Mounting opening

[0282] 34 Mounting plate

[0283] 35 Receiving opening

[0284] 36 Retaining bolt 37 Edge strut

[0285] 38 Secondary strut

[0286] 40 Formwork system 41 Widening

[0287] 42 guidance system

[0288] 43 Concrete formwork

[0289] 44 Formwork room 50 Preparation block

[0290] 51 Anchor block

[0291] 52 clamping block

Claims

P a t e n t a n s p r ü c h e 1. Device (1) for holding an anchor (2) on a formwork element (3), with a shaft device (4) which has an anchor guide channel (6) along its longitudinal extent (5) for the passage of the anchor (2), a head plate (7) which is formed at a first end (8) of the shaft device (4) and which closes off the first end (8) of the shaft device (4) around the anchor guide channel (6), and a foot section (9) which is formed at a second end (10) of the shaft device (4) and which closes off the second end (10) of the shaft device (4) around the anchor guide channel (6), characterized in that the foot section (9) is designed for aligned and / or sealing engagement in an anchor opening (11) of a formwork skin (12) of the formwork element (3), and the foot section (9) has a cross section which corresponds at least to a cross section of at least one covering element (13), in particular a cladding tube (13a),into which the anchor (2) can be inserted., 2. Device (1) according to claim 1, characterized in that the armature guide channel (6) has at least in sections, in particular in the foot section (9), a smaller cross-section than the casing element (13).

3. Device (1) according to claim 1 or 2, characterized in that the foot section (9) has a, in particular conical, taper (14).

4. Device (1) according to one of claims 1 to 3, characterized in that the head plate (7) has several, preferably three, through-openings (15) which are arranged around the armature guide channel (6), wherein an elongated hole (16) is connected to each of the through-openings (15).

5. Device (1) according to one of claims 1 to 4, characterized in that a securing device (17) is arranged on the head plate (7), which is designed for reversible engagement in the formwork element (3), wherein the securing device (17) is preferably designed as a reversibly fastenable pin (17a).

6. Device (1) according to one of claims 1 to 5, characterized in that the head plate (7) has at least one handle (18) for rotating the device (1) about a central axis of the armature guide channel (6).

7. Device (1) according to one of claims 1 to 6, characterized in that the head plate (7) has a plurality, preferably three, concave receiving areas (19) arranged on the side facing away from the foot section (9).

8. Device (1) according to one of claims 1 to 7, characterized in that the foot section (9) has a seal (20) in the region of the anchor guide channel (6) and / or is designed such that in a region around the anchor guide channel (6) a seal (20), in particular an enveloping cone (21), can be placed on the foot section (9) in order to seal the anchor guide channel (6) against liquid concrete (22).

9. Support device (23) for an anchor nut (23) of an anchor (2) for a formwork element (3), comprising: a support plate (25) with a through-opening (26) for the passage of the anchor (2), wherein the support plate (25) has several, preferably three, threaded bores (27) which are arranged around the through-opening (26), wherein in particular the threads of the threaded bores (27) have a smaller pitch than a thread of the anchor nut (24).

10. Formwork element (3) for concrete construction, which can be braced by means of at least one anchor (2), comprising: a formwork skin (12) which, in use, faces the concrete (22), a frame device (31) to which the formwork skin (12) can be fastened and which holds the formwork skin (12), wherein the frame device (31) has a plurality of at least partially interconnected struts (32), characterized in that at least one anchor opening (11) designed as an assembly opening (33) is provided in the formwork skin (12), which is arranged adjacent to at least two of the struts (32) and which has an assembly cross-section which corresponds at least to a cross-section of a sheathing element (13), in particular a sheathing tube (13a), into which the anchor (2) can be introduced.

11. Formwork element (3) according to claim 10, characterized in that a receiving plate (34) is arranged on the adjacent struts (32), which has a receiving opening (35) opposite the mounting opening (33), wherein the cross section of the receiving opening (35) corresponds at least to the mounting cross section.

12. Formwork element (3) according to claim 11, characterized in that the receiving plate (34) has a plurality of retaining bolts (36) which are arranged around the receiving opening (35).

13. Formwork element (3) according to one of claims 10 to 12, characterized in that the assembly opening (35) has a widening (41), in particular a conical one, in the direction of the frame device (31).

14. Formwork element (3) according to one of claims 10 to 13, characterized in that two mounting openings (33) are arranged along a central axis of the formwork element (3).

15. Formwork element (3) according to one of claims 10 to 14, characterized in that the frame device (31) has a plurality of edge struts (37) arranged along an edge region of the formwork skin (12) and secondary struts (38) located between the edge struts (37) and connected to the edge struts (37).

16. Formwork element (3) according to one of claims 10 to 15, characterized in that the frame device (31) and / or the formwork skin (12) are made of metal, in particular steel.

17. Formwork element (3) according to one of claims 10 to 16, characterized in that the at least one assembly opening (33) is arranged adjacent to an intersection point of two, preferably diagonally extending, struts (32, 38).

18. Formwork system (40) for concrete construction, comprising at least one formwork element (3) according to one of claims 10 to 17, a device (1) according to one of claims 1 to 8, wherein the foot section (9) is designed for flush and / or sealing engagement in the assembly opening (33), optionally, a support device (23) according to claim 9.

19. Formwork system (40) according to claim 18, characterized in that the through-openings (15) and the retaining bolts (36) are arranged such that they can be brought into engagement with one another, and / or the receiving areas (19) are arranged such that they can be oriented opposite the threaded bores (27).

20. Formwork system (40) according to claim 18 or 19, characterized by at least one anchor (2) for bracing the at least one formwork element (3), and / or at least one sheathing element (13), in particular a sheathing tube (13a), into which the anchor (2) can be introduced.

21. A method for forming a concrete formwork (43) which at least partially comprises a formwork space (44), comprising at least the following steps: a) providing at least one formwork element (3) according to one of claims 10 to 17, wherein at least two formwork elements (3) are provided to form the formwork space (44), wherein the formwork elements (3) are arranged opposite one another, b) providing at least one device according to one of claims 1 to 8, wherein the foot section (9) is designed for aligned and / or sealing engagement in the assembly opening (33), c) providing at least one anchor (2), as well as at least one cladding tube (13a) and / or at least one cladding cone (21), d) introducing the anchor (2), as well as the cladding tube (13a) and / or the cladding cone (21), into the formwork space (44) through the assembly opening (33), e) passing the anchor (2) through the Anchor guide channel (6) of the device (1) such thatthat the foot section (9) engages in the assembly opening (33), f) fixing the head plate (7) to the frame device (31), g) clamping the anchor (2) in such a way that the formwork elements (3) are clamped together by the anchor (2).

22. Method according to claim 21, characterized in that in step d) for pre-assembly two sheath cones (21) are arranged on both sides of the sheath tube (13a) and the anchor (2) is introduced into the sheath tube (13a), so that the anchor (2), the sheath tube (13a) and the sheath cones (21) are introduced in the pre-assembled state into the formwork space (44) through the assembly opening (33).

23. Method according to claim 21 or 22, characterized in that the head plate (7) is fastened to the frame device (31) in step f) by rotating it around the anchor guide channel (6) by means of a bayonet lock.

24. Method according to one of claims 21 to 23, characterized in that the anchor (2) is clamped in step g) by means of an anchor nut (24), wherein a support device (23) according to claim 9 is arranged between the head plate (7) and the anchor nut (24), in which adjusting screws (28) are screwed in in a uniformly projecting manner in the threaded bores (27).

Images