EP4269054A1 - Concrete double wall element and semi-finished product and support device for the production thereof - Google Patents
Concrete double wall element and semi-finished product and support device for the production thereof Download PDFInfo
- Publication number
- EP4269054A1 EP4269054A1 EP23166451.7A EP23166451A EP4269054A1 EP 4269054 A1 EP4269054 A1 EP 4269054A1 EP 23166451 A EP23166451 A EP 23166451A EP 4269054 A1 EP4269054 A1 EP 4269054A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- concrete
- shell
- sleeve
- support device
- double wall
- 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.)
- Pending
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- 239000004567 concrete Substances 0.000 title claims abstract description 165
- 239000011265 semifinished product Substances 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title abstract description 14
- 239000002131 composite material Substances 0.000 claims description 20
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 238000009415 formwork Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011178 precast concrete Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
- B28B7/002—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps using magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/028—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members for double - wall articles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
- E04C2002/3488—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by frame like structures
Definitions
- the invention relates to a support device for producing a concrete double wall element according to the preamble of claim 1. Furthermore, the invention relates to a semi-finished product produced using this support device and a concrete double wall element.
- precast concrete parts often takes place in two steps, which take place in spatially separate locations.
- concrete double wall elements are produced in a precast concrete factory, which include a first shell and a second shell made of reinforced concrete. There is a cavity between the two shells, which can be provided with insulating materials if necessary.
- These double wall elements, prefabricated in the precast concrete factory, are transported to the construction site and fixed there in the desired end position. The cavity between the first and second shell is then filled with concrete.
- the production of the double wall elements in the precast concrete factory typically takes place in several process steps using a so-called pallet circulation system.
- a so-called first shell is produced and hardened in a drying chamber.
- Composite means and/or double wall spacers are concreted into this first shell, which are typically distributed over the entire wall element, act as spacers and define the wall thickness of the component in the later component.
- the first shell Once the first shell has hardened, it is turned 180° and placed on a layer of liquid concrete (fresh concrete), which forms the (still unhardened) second shell.
- the spacers or double wall spacers cast in concrete into the first shell rest on the lower formwork when the first shell is placed in the fresh concrete of the second shell.
- the assembly of the first and second shells is brought back into the drying chamber to harden the second shell. After that it will be this way
- the manufactured concrete double wall element is removed from the pallet in a demoulding station.
- the concrete shells and concrete elements to be manufactured are stored on movable pallets that are moved to different work stations for the different work steps.
- This procedure enables very efficient production, but during the step of placing the first shell on the fresh concrete of the second shell, it poses the difficulty that the hardened first shell rests with its entire weight on the point-shaped spacers or double-wall spacers.
- the process step of placing the first shell is machine-controlled and highly precise, the subsequent compaction process and in particular when transferring the pallet carrying the fresh concrete to a next work station can occur due to the braking and acceleration forces that occur in combination with the inertia of the first shell a displacement of the hardened first shell relative to the fresh concrete of the second shell.
- misalignments are noticed before the second shell of the double wall part has hardened, they can be corrected manually, although this involves a lot of effort. However, such misalignments are often only noticed when the walls are being assembled on the construction site. At this point, the misalignments can no longer be corrected but must be compensated for through increased assembly effort.
- a method for avoiding or reducing the misalignment of the two concrete shells described above is in DE 10 2018 124 980 B3 described, the entire disclosure content of which is hereby incorporated into the present patent application.
- a fixing device is used, the first end section of which is concreted into the first concrete shell together with the connecting means during the production of the first concrete shell.
- a second end section of the fixing device protrudes both laterally and vertically beyond the first concrete shell.
- An anchor element is or is attached to the end of this second end section. When turning the first concrete bowl and deposited on the fresh concrete layer of the second concrete shell, this anchor element comes into engagement with the pallet carrying the fresh concrete layer and thereby connects the first concrete shell to this pallet in a non-displaceable manner. In this way it is ensured that no changes in position of the first concrete shell relative to the pallet can occur during the shaking of the first concrete shell and during the transport of the pallet into the hardening station or drying chamber.
- the invention is based on the object that arises from the DE 10 2018 124 980 B3 to further develop the known fixing device in such a way that it can be reused with the least possible amount of material and work and used to produce different double wall elements. Furthermore, a concrete double wall element and a semi-finished product in the form of a specially designed individual shell are to be provided, which is manufactured using such an improved fixing device.
- the support device according to the invention which is used for the precise relative positioning of two concrete shells in the course of producing a concrete double wall element, comprises a fixing element with a first end section which is embedded in the first concrete shell during the production/hardening thereof.
- the support device further comprises an anchor element with which the fixing element can be releasably attached to a pallet carrying the second concrete shell.
- a firm connection is established between the two pallets carrying the concrete layers using a fixing element and anchor element.
- the fixing element and anchor element thus work together in such a way that they fix the first concrete shell relative to the pallet carrying the fresh concrete layer, so that there are no changes in position of the first concrete shell during the shaking of the first concrete shell and during the transport of the pallet into a hardening station or drying chamber the palette can occur more.
- the first end section of the fixing element to be embedded in the first concrete shell is provided with a sleeve which is releasably attached to the end section of the fixing element.
- the sleeve is designed and arranged in such a way that when the fixing element is concreted into the first concrete shell, only this sleeve, but not the rest of the fixing element, comes into contact with the concrete. After the concrete shell has hardened, this sleeve is concreted into the concrete shell and therefore remains in the concrete shell. The fixing element can then be pulled out of the sleeve and is available for the production of further concrete shells after the manufacturing process of the concrete double wall element has been completed.
- the sleeve is preferably made of a plastic and is provided with longitudinal and/or transverse ribs on its outside.
- the ribs stabilize the sleeve against deformations and ensure that the sleeve is well anchored in the first concrete shell.
- the fixing element is detachably attached to one of the first in a support area (magnetically and/or mechanically).
- Concrete shell-bearing pallet can be attached.
- the fixing element has a permanent magnet in the support area, so that the fixing element can be fixed to the (metallic) pallet or a (metallic) formwork located on this pallet by means of magnetic force and held in the desired position relative to the pallet and the first concrete shell located thereon becomes.
- Fixing element and anchor element can be firmly connected to one another.
- the fixing element and anchor element are separate elements that can be detachably connected to one another.
- the fixing element has a foot part in the area of which it can be attached to the anchor element.
- This foot part advantageously has the shape of a hemisphere, which enables the foot part to be easily clamped in the anchor element so that it cannot move.
- the connection is preferably made using a lockable plug connection.
- the anchor element is attached to the pallet carrying the fresh concrete layer, preferably by means of an easily detachable connection, so that the anchor element can be detached from the pallet without much effort after completion of the double wall element and the pallet can be reused without leaving any residue from the fixing device.
- the anchor element can comprise a permanent magnet, which can be fixed to the (metallic) pallet by means of magnetic force and is removed without leaving any residue after the finished double wall element has been removed - for example when removing the formwork.
- a semi-finished product according to the invention produced using such a support device comprises a flat concrete shell in which composite means are embedded in such a way that peaks of these composite means protrude from the concrete shell in a connecting direction.
- the semi-finished product also includes: an area near the edge, a sleeve embedded in the concrete shell for receiving a fixing element, which is used to fix the semi-finished product during a further processing step for producing a concrete double wall element.
- the sleeve is embedded in an area near the edge and has an opening which is located on the inside of the concrete shell facing the tops of the composite means.
- the sleeve is preferably made of a plastic and is provided with stabilizing longitudinal and/or transverse ribs.
- a concrete double wall element according to the invention produced using such a semi-finished product comprises two flat concrete shells, in which composite means are embedded in sections, which serves to connect and as a spacer of the concrete shells.
- a sleeve for receiving a fixing element is concreted into one of these concrete shells in an area near the edge. This sleeve is located in an area of the concrete shell near the edge and has an opening which is located on an inside facing the opposite concrete shell.
- the sleeve is preferably made of a plastic and is provided with stabilizing longitudinal and/or transverse ribs.
- Figure 1 shows a schematic representation of a concrete double wall element 1 with two flat shells 2a, 2b made of hardened concrete, which are connected by composite means 3 and fixed at a predetermined distance from one another with the help of double wall spacers 3 '.
- a cavity 15 is formed between the two concrete shells 2a, 2b, which is filled with liquid concrete in a later process step, not described in detail here, at a construction site, in particular on a construction site, to form a concrete wall.
- a sleeve 23 made of plastic is embedded in the first concrete shell 2a of the concrete double wall element 1, which - as will be described in detail below - accommodates an in Figures 2a and 2b Support device 40 shown is used, which is used during the production of the concrete double wall element 1.
- the sleeve 23 is embedded in a region 11a of the concrete shell 2a near the edge in such a way that the outside 26 of the sleeve 23 is partially encased in concrete.
- the opening 26 'of the sleeve 23 faces the edge 12a of the concrete shell 2a, and the sleeve 23 protrudes obliquely from the inside 13a of the first concrete shell 2a facing the second concrete shell 2b.
- Figures 2a and 2b show schematic representations of the support device 40 with a fixing element 20 and an anchor element 30, which are detachably connected to one another are.
- the fixing element 20 is provided with a foot part 25, which can be locked in the anchor element 30 so that it cannot be displaced.
- Figures 2a shows fixing element 20 and anchor element 30 in a separated state
- Figure 2b in a state in which fixing element 20 and anchor element 30 are connected and locked.
- Figure 2c shows a perspective detailed view of the anchor element 30.
- Figures 3a to 3e illustrate individual process steps of a process flow for producing the concrete double wall element 1 Figure 1 and as well as the use of the supporting device 40 used Figures 2a, 2b and 2c .
- the concrete double wall element 1 is manufactured with the help of pallets 5a, 5b, which successively pass through several stations of a production line (not shown in the figures).
- the displaceability of the pallets 5a, 5b during the production of the concrete double wall element 1 is in the Figures 3a -3e indicated by transport rollers 8 below the pallets 5a, 5b.
- formwork elements 6a and double wall spacers 3 ' are attached to the first pallet 5a.
- the entirety of the formwork elements 6a forms a formwork that encloses an interior space 7a to be filled with liquid concrete and corresponds to the outer and inner contours of the concrete double wall element 1 to be manufactured.
- Liquid concrete 10a (so-called fresh concrete) is poured into this interior 7a ( Figure 3a ).
- Composite means 3, for example lattice girders, are inserted into the still unhardened liquid concrete 10a, which later, in the concrete double wall element 1 to be manufactured, connect the two concrete shells 2a, 2b to one another (see Figure 1 ). Peaks 4 of these composite means 3 protrude upwards from the liquid concrete 10a.
- the fixing element 20 is placed on the formwork 6a Figure 2a shown supporting device 40 placed in such a way that a first end section 21 of the fixing element 20 - as well as the composite means 3 and the double wall spacers 3 ' - protrudes in sections into the fresh concrete 10a of the first concrete shell 2a.
- the first end section 21 is inserted at the end into a sleeve 23, and the end section 21 and the sleeve 23 are in such a way dimensioned so that only areas of the sleeve 23, but not the rest of the first end section 21, are immersed in the fresh concrete 10a.
- the sleeve 23 is preferably made of a plastic and provided with longitudinal and/or transverse ribs 24 (see Figure 2a ).
- these ribs 24 effect a mechanical stabilization of the sleeve 23, but on the other hand they also have the function of ensuring anchoring and thus ensuring that the sleeve 23 remains in the first concrete shell 2a after the fixing element 20 has been removed.
- a second end section 22 of the fixing element 20, designed as a bent metal rod 29, projects both vertically (in an in Figure 3a connection direction 14 shown as an arrow) as well as laterally (perpendicular to the connection direction 14) beyond the formwork 6a and has the foot part 25 at the end, which serves to fasten the fixing element 20 to the anchor element 30.
- a permanent magnet 28 is also provided on the fixing element 20, which is located in a support area 27 of the fixing element 20 opposite the formwork 6a;
- the support area 27 is placed on the formwork 6a made of a magnetizable material (eg steel) and causes the fixing element to be held stably on the pallet 6a.
- Pallet 5a shown is now placed in a hardening station in which the liquid concrete 10a hardens to form a first concrete shell 2a (first shell).
- the fixing element 20 is held in the desired spatial position and orientation on the pallet 5a by the permanent magnet 28 during transport to the hardening station and during the hardening of the liquid concrete 10a.
- the composite means 3, the double wall spacer 3' and the fixing element 20 are firmly concreted into the first shell 2a in the area of the sleeve 23.
- the semi-finished product 9 includes the hardened first shell 2a with the sections embedded in concrete Composite means 3, the tips 4 of which protrude from the concrete layer 2a in the connecting direction 14, the double wall spacers 3 'and the sleeve 23 of the fixing element 20, which is partially embedded in concrete.
- formwork elements 6b are attached to a second pallet 5b, which also correspond to the outer and inner contours of the concrete double wall element 1 to be manufactured, but which are arranged inverted to the formwork 6a of the first pallet 5a.
- the anchor element 30 is plugged onto the foot part 25 of the fixing element 20 (see Figure 2a ) and connected to this (see Figure 2b ).
- the foot part 25 of the fixing element 20 is first inserted into a recess 33 provided for this purpose in the housing 31 of the anchor element 30 and pre-fixed there by a magnet 32 mounted in the anchor element 30.
- the anchor element 30 comprises a locking slide 34, which is in a locking direction 38 (ie in a direction perpendicular to the plane of the drawing in Figures 2a, 2b ) is movably mounted relative to the housing 31 of the anchor element 30.
- the longitudinal guidance of the locking slide 34 relative to the housing 31 of the anchor element 30 is carried out by an extension 36 in the housing 31 of the anchor element 30, which engages in a groove or a slot 35 of the locking slide 34 and in this way a guided movement without unintentional detachment of the locking slide 34 causes (see Figure 2c ).
- the groove or slot 35 runs slightly obliquely;
- Liquid concrete 10b is now poured into the interior 7b formed by the formwork elements 6b on the second pallet 5b, and the hardened first shell 2a located on the first pallet 5a is turned through 180 ° using a turning device (not shown in the figures), so that the tips 4 of the composite means 3 protrude downwards (see Figure 3c ).
- the first shell 2a with the fixing element 20 held therein and the anchor element 30 attached to the fixing element 20 is placed in a precisely positioned position on the liquid concrete layer 10b of the second pallet 5b in a pre-calculated manner.
- the peaks 4 of the composite means 3 sink into the liquid concrete layer 10b (see Figure 3d ), and the anchor element 30 comes into contact with the surface of the second pallet 5b.
- the anchor element 30 Since the second pallet 5b (at least in the fastening area of the anchor element 30) consists of a magnetizable material, usually steel, the anchor element 30 is magnetically attracted to the surface of the pallet 5b by means of the permanent magnet 32 and is therefore firmly connected to the second pallet 5b via magnetic force . Since the fixing element 20 is embedded in the first concrete shell 2a in the area of the sleeve 23 and the anchor element 30 is firmly attached to the second pallet 5b, the support device 40 thus fixes the first concrete shell 2a relative to the second pallet 5b.
- the second pallet 5b with the liquid concrete layer 10b and the first shell 2b stored thereon is then brought into the hardening station. Due to the fixation of the first concrete shell 2b on the second pallet 5b by means of the support device 40, displacements of the first concrete shell 2b relative to the second pallet 5b are prevented during this transport.
- the liquid concrete 10b poured into the interior 7b of the second pallet 5b is hardened to form a second concrete shell 2b (second shell).
- the first shell 2a and second shell 2b are now firmly connected to one another; displacements of the two shells 2a, 2b relative to one another are prevented by the composite means 3 embedded in concrete on both sides ( Figure 3d ).
- the locking carriage 34 of the anchor element 30 is then released so that the fixing element 20 can be pulled out of the anchor element 30.
- the finished concrete double wall element 1 is removed from the second pallet 5b (arrow 41), whereby the anchor element 30 initially remains on the second pallet 5b and can be removed later (see Figure 3e ).
- the fixing element 20 is then released from the sleeve 23 fixed in the first concrete shell 2a.
- the sleeve 23 remains in the concrete double wall element 1.
- the anchor element 30 and the fixing element 20 can - after pushing a further sleeve 23 onto the first end section 21 of the fixing element 20 - be used to produce another concrete double wall element.
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Abstract
Die Erfindung betrifft eine Stützvorrichtung (40) zur lagegenauen Relativpositionierung zweier Betonschalen (2a, 2b) im Zuge der Herstellung eines Beton-Doppelwandelements (1). Die Stützvorrichtung (40) umfasst ein Fixierelement (20) mit einem ersten Endabschnitt (21) zur abschnittsweisen Einbettung in die erste Betonschale (2a) sowie ein Ankerelement (30) zur unmittelbaren oder mittelbaren Befestigung der Stützvorrichtung (20) an einer die zweite Betonschale (2b) tragenden Palette (5b). Fixierelement (20) und Ankerelement (30) sind vorteilhafterweise lösbar miteinander verbunden. Das Fixierelement (20) ist mit einer abtrennbaren Hülse (23) versehen, die im Zuge der Herstellung des Beton-Doppelwandelements (1) zumindest abschnittsweise in die erste Betonschale (2a) eingebettet wird.The invention relates to a support device (40) for the precise relative positioning of two concrete shells (2a, 2b) in the course of producing a concrete double wall element (1). The support device (40) comprises a fixing element (20) with a first end section (21) for embedding sections in the first concrete shell (2a) and an anchor element (30) for direct or indirect fastening of the support device (20) to the second concrete shell ( 2b) supporting pallet (5b). Fixing element (20) and anchor element (30) are advantageously detachably connected to one another. The fixing element (20) is provided with a detachable sleeve (23), which is embedded at least in sections in the first concrete shell (2a) during the production of the concrete double wall element (1).
Description
Die Erfindung betrifft eine Stützvorrichtung zur Herstellung eines Beton-Doppelwandelements nach dem Oberbegriff des Anspruchs 1. Weiterhin betrifft die Erfindung ein unter Verwendung dieser Stützvorrichtung hergestelltes Halbzeug sowie ein Beton-Doppelwandelement.The invention relates to a support device for producing a concrete double wall element according to the preamble of
Die Herstellung von Betonfertigteilen erfolgt oftmals in zwei Schritten, die an räumlich getrennten Orten stattfinden. Dabei werden zunächst in einem Betonfertigteilwerk sogenannte Beton-Doppelwandelemente produziert, die eine Erstschale und eine Zweitschale aus bewehrtem Beton umfassen. Zwischen den beiden Schalen befindet sich ein Hohlraum, der ggf. mit Dämmmaterialien versehen sein kann. Diese im Betonfertigteilwerk vorfabrizierten Doppelwandelemente werden auf die Baustelle transportiert und dort in der gewünschten Endlage fixiert. Anschließend wird der Hohlraum zwischen Erst- und Zweitschale mit Beton ausgefüllt.The production of precast concrete parts often takes place in two steps, which take place in spatially separate locations. First, so-called concrete double wall elements are produced in a precast concrete factory, which include a first shell and a second shell made of reinforced concrete. There is a cavity between the two shells, which can be provided with insulating materials if necessary. These double wall elements, prefabricated in the precast concrete factory, are transported to the construction site and fixed there in the desired end position. The cavity between the first and second shell is then filled with concrete.
Die Fertigung der Doppelwandelemente im Betonfertigteilwerk erfolgt typischerweise in mehreren Prozessschritten unter Verwendung einer sogenannten Paletten-Umlaufanlage. In einem ersten Schritt wird eine sogenannte Erstschale hergestellt und in einer Trockenkammer ausgehärtet. In diese Erstschale sind Verbundmittel und/oder Doppelwandabstandhalter einbetoniert, die typischerweise über das gesamte Wandelement verteilt sind, als Abstandshalter fungieren und im späteren Bauteil die Wanddicke des Bauteils definieren. Ist die Erstschale ausgehärtet, dann wird sie um 180° gewendet und auf eine Lage von Flüssigbeton (Frischbeton) gelegt, die die (noch ungehärtete) Zweitschale bildet. Die in die Erstschale einbetonierten Abstandhalter bzw. Doppelwandabstandhalter liegen beim Auflegen der Erstschale in den Frischbeton der Zweitschale auf der unteren Schalung auf. Der Zusammenbau aus Erst- und Zweitschale wird nochmals in die Trockenkammer verbracht, um die Zweitschale auszuhärten. Danach wird das auf diese Weise gefertigte Beton-Doppelwandelement in einer Entschalstation aus der Palette entnommen.The production of the double wall elements in the precast concrete factory typically takes place in several process steps using a so-called pallet circulation system. In a first step, a so-called first shell is produced and hardened in a drying chamber. Composite means and/or double wall spacers are concreted into this first shell, which are typically distributed over the entire wall element, act as spacers and define the wall thickness of the component in the later component. Once the first shell has hardened, it is turned 180° and placed on a layer of liquid concrete (fresh concrete), which forms the (still unhardened) second shell. The spacers or double wall spacers cast in concrete into the first shell rest on the lower formwork when the first shell is placed in the fresh concrete of the second shell. The assembly of the first and second shells is brought back into the drying chamber to harden the second shell. After that it will be this way The manufactured concrete double wall element is removed from the pallet in a demoulding station.
Bei der Fertigung von Beton-Doppelwandelementen in der Paletten-Umlaufanlage sind die zu fertigenden Betonschalen und Betonelemente auf verschiebbaren Paletten gelagert, die für die unterschiedlichen Arbeitsschritte in unterschiedliche Arbeitsstationen bewegt werden. Diese Vorgehensweise ermöglicht eine sehr effiziente Fertigung, birgt jedoch beim Arbeitsschritt des Auflegens der Erstschale auf den Frischbeton der Zweitschale die Schwierigkeit, dass die ausgehärtete Erstschale mit ihrem kompletten Gewicht auf den punktförmigen Abstandshaltern bzw. Doppelwandabstandhaltern aufliegt. Während der Prozessschritt des Auflegens der Erstschale maschinengesteuert und hoch präzise erfolgt, kann es bei dem nun folgenden Verdichtungsprozess und insbesondere bei einem Transfer der den Frischbeton tragenden Palette in eine nächste Arbeitsstation aufgrund der dabei auftretenden Brems- und Beschleunigungskräfte in Kombination mit der Trägheit der Erstschale zu einem Verschieben der ausgehärteten Erstschale relativ zum Frischbeton der Zweitschale kommen. Werden solche Fehlstellungen vor dem Aushärten der Zweitschale des Doppelwandteils bemerkt, dann können sie händisch korrigiert werden, was jedoch mit einem großen Aufwand einhergeht. Oftmals werden solche Fehlstellungen allerdings erst bei der Montage der Wände auf der Baustelle bemerkt. Zu diesem Zeitpunkt können die Fehlstellungen nicht mehr korrigiert werden, sondern müssen durch einen erhöhten Montageaufwand kompensiert werden.When producing concrete double wall elements in the pallet circulation system, the concrete shells and concrete elements to be manufactured are stored on movable pallets that are moved to different work stations for the different work steps. This procedure enables very efficient production, but during the step of placing the first shell on the fresh concrete of the second shell, it poses the difficulty that the hardened first shell rests with its entire weight on the point-shaped spacers or double-wall spacers. While the process step of placing the first shell is machine-controlled and highly precise, the subsequent compaction process and in particular when transferring the pallet carrying the fresh concrete to a next work station can occur due to the braking and acceleration forces that occur in combination with the inertia of the first shell a displacement of the hardened first shell relative to the fresh concrete of the second shell. If such misalignments are noticed before the second shell of the double wall part has hardened, they can be corrected manually, although this involves a lot of effort. However, such misalignments are often only noticed when the walls are being assembled on the construction site. At this point, the misalignments can no longer be corrected but must be compensated for through increased assembly effort.
Ein Verfahren zur Vermeidung bzw. Reduktion der oben beschriebenen Fehlstellung der beiden Betonschalen ist in
Nach dem vollständigen Aushärten des Doppelwandelements wird ein aus dem Doppelwandelement herausragender Teil der einbetonierten Fixiervorrichtung abgetrennt, so dass ein Stummel der Fixiervorrichtung im Doppelwandelement verbleibt. Die Fixiervorrichtung ist somit zerstört, so dass zur Herstellung eines weiteren Doppelwandelements eine neue Fixiervorrichtung benötigt wird. Dies ist aufwendig und verursacht zusätzliche Materialkosten. Es besteht daher das Interesse, die Fixiervorrichtung in einer solchen Weise weiterzuentwickeln, dass eine größtmögliche Wiederverwendbarkeit sichergestellt werden kann.After the double wall element has completely hardened, a part of the fixing device embedded in concrete that protrudes from the double wall element is separated, so that a stub of the fixing device remains in the double wall element. The fixing device is thus destroyed, so that a new fixing device is required to produce another double wall element. This is complex and causes additional material costs. There is therefore an interest in further developing the fixing device in such a way that the greatest possible reusability can be ensured.
Der Erfindung liegt die Aufgabe zugrunde, die aus der
Diese Aufgabe wird gelöst durch eine Stützvorrichtung mit den Merkmalen des unabhängigen Anspruchs 1. Die Aufgabe wird weiterhin gelöst durch ein Beton-Doppelwandelement mit den Merkmalen des unabhängigen Anspruchs 9 sowie ein Halbzeug mit den Merkmalen des unabhängigen Anspruchs 13. Die Unteransprüche betreffen vorteilhafte Weiterbildungen und Varianten der Erfindung.This task is solved by a support device with the features of
Die erfindungsgemäße Stützvorrichtung, die zur lagegenauen Relativpositionierung zweier Betonschalen im Zuge der Herstellung eines Beton-Doppelwandelements dient, umfasst ein Fixierelement mit einem ersten Endabschnitt, der während der Herstellung/Aushärtung der ersten Betonschale in diese eingebettet wird. Die Stützvorrichtung umfasst weiterhin ein Ankerelement, mit der das Fixierelement lösbar an einer die zweite Betonschale tragenden Palette befestigt werden kann. Im Zuge des Ablegens der um 180° gewendeten ersten Betonschale auf der Frischbetonschicht der zweiten Betonschale wird mittels Fixierelement und Ankerelement eine feste Verbindung zwischen den beiden die Betonschichten tragenden Paletten hergestellt. Fixierelement und Ankerelement wirken somit in einer solchen Weise zusammen, dass sie die erste Betonschale gegenüber der die Frischbetonschicht tragenden Palette fixieren, so dass während des Einrüttelns der ersten Betonschale und während des Transports der Palette in eine Härtestation bzw. Trockenkammer keine Lageänderungen der ersten Betonschale gegenüber der Palette mehr auftreten können.The support device according to the invention, which is used for the precise relative positioning of two concrete shells in the course of producing a concrete double wall element, comprises a fixing element with a first end section which is embedded in the first concrete shell during the production/hardening thereof. The support device further comprises an anchor element with which the fixing element can be releasably attached to a pallet carrying the second concrete shell. In the course of placing the first concrete shell, which has been turned 180°, onto the fresh concrete layer of the second concrete shell, a firm connection is established between the two pallets carrying the concrete layers using a fixing element and anchor element. The fixing element and anchor element thus work together in such a way that they fix the first concrete shell relative to the pallet carrying the fresh concrete layer, so that there are no changes in position of the first concrete shell during the shaking of the first concrete shell and during the transport of the pallet into a hardening station or drying chamber the palette can occur more.
Um eine hohe Wiederverwendbarkeit der Stützvorrichtung sicherzustellen, ist der in die erste Betonschale einzubettende erste Endabschnitt des Fixierelements mit einer Hülse versehen, die lösbar am Endabschnitt des Fixierelements befestigt ist. Die Hülse ist in einer solchen Weise gestaltet und angeordnet, dass beim Einbetonieren des Fixierelements in die erste Betonschale nur diese Hülse, nicht aber der Rest des Fixierelements mit dem Beton in Berührung kommt. Nach dem Aushärten der Betonschale ist diese Hülse in der Betonschale einbetoniert, verbleibt also in der Betonschale. Das Fixierelement kann dann aus der Hülse herausgezogen werden und steht nach Beendigung des Herstellungsprozesses des Beton-Doppelwandelements für die Herstellung weiterer Betonschalen zur Verfügung.In order to ensure a high level of reusability of the support device, the first end section of the fixing element to be embedded in the first concrete shell is provided with a sleeve which is releasably attached to the end section of the fixing element. The sleeve is designed and arranged in such a way that when the fixing element is concreted into the first concrete shell, only this sleeve, but not the rest of the fixing element, comes into contact with the concrete. After the concrete shell has hardened, this sleeve is concreted into the concrete shell and therefore remains in the concrete shell. The fixing element can then be pulled out of the sleeve and is available for the production of further concrete shells after the manufacturing process of the concrete double wall element has been completed.
Die Hülse besteht vorzugsweise aus einem Kunststoff und ist an ihrer Außenseite mit Längs- und/oder Querrippen versehen. Die Rippen stabilisieren die Hülse gegenüber Verformungen und bewirken eine gute Verankerung der Hülse in der ersten Betonschale.The sleeve is preferably made of a plastic and is provided with longitudinal and/or transverse ribs on its outside. The ribs stabilize the sleeve against deformations and ensure that the sleeve is well anchored in the first concrete shell.
Um während des Aushärteprozesses der ersten Betonschale sicherzustellen, dass das Fixierelement bzw. die an dem Fixierelement befestigte Hülse zuverlässig in der gewünschten Einbaulage einbetoniert wird, ist es vorteilhaft, wenn das Fixierelement in einem Abstützbereich (magnetisch und/oder mechanisch) lösbar an einer die erste Betonschale tragenden Palette befestigt werden kann. Vorteilhafterweise weist das Fixierelement im Abstützbereich einen Permanentmagnet auf, so dass das Fixierelement mittels Magnetkraft an der (metallischen) Palette oder einer auf dieser Palette befindlichen (metallischen) Schalung fixiert werden kann und in der gewünschten Position gegenüber der Palette und der darauf befindlichen ersten Betonschale gehalten wird.In order to ensure during the hardening process of the first concrete shell that the fixing element or the sleeve attached to the fixing element is reliably concreted into the desired installation position, it is advantageous if the fixing element is detachably attached to one of the first in a support area (magnetically and/or mechanically). Concrete shell-bearing pallet can be attached. Advantageously, the fixing element has a permanent magnet in the support area, so that the fixing element can be fixed to the (metallic) pallet or a (metallic) formwork located on this pallet by means of magnetic force and held in the desired position relative to the pallet and the first concrete shell located thereon becomes.
Fixierelement und Ankerelement können fest miteinander verbunden sein. Vorteilhafterweise sind Fixierelement und Ankerelement aber separate Elemente, die lösbar miteinander verbunden werden können. In diesem Fall weist das Fixierelement ein Fußteil auf, im Bereich dessen es am Ankerelement befestigt werden kann. Dieses Fußteil hat vorteilhafterweise die Form einer Halbkugel, was eine einfache verschiebungssichere Klemmung des Fußteils im Ankerelement ermöglicht. Die Verbindung erfolgt vorzugsweise mit Hilfe einer verrastbaren Steckverbindung.Fixing element and anchor element can be firmly connected to one another. Advantageously, the fixing element and anchor element are separate elements that can be detachably connected to one another. In this case, the fixing element has a foot part in the area of which it can be attached to the anchor element. This foot part advantageously has the shape of a hemisphere, which enables the foot part to be easily clamped in the anchor element so that it cannot move. The connection is preferably made using a lockable plug connection.
Das Ankerelement ist auf der die Frischbetonschicht tragenden Palette vorzugsweise mittels einer leicht lösbaren Verbindung befestigt, so dass das Ankerelement nach Fertigstellung des Doppelwandelements ohne großen Aufwand von der Palette gelöst werden kann und die Palette ohne Rückstände der Fixiervorrichtung weiterverwendet werden kann. Insbesondere kann das Ankerelement einen Permanentmagnet umfassen, der mittels Magnetkraft an der (metallischen) Palette fixiert werden kann und nach Abnahme des fertigen Doppelwandelements - beispielsweise im Zuge einer Entfernung der Schalung - rückstandsfrei entfernt wird.The anchor element is attached to the pallet carrying the fresh concrete layer, preferably by means of an easily detachable connection, so that the anchor element can be detached from the pallet without much effort after completion of the double wall element and the pallet can be reused without leaving any residue from the fixing device. In particular, the anchor element can comprise a permanent magnet, which can be fixed to the (metallic) pallet by means of magnetic force and is removed without leaving any residue after the finished double wall element has been removed - for example when removing the formwork.
Ein unter Verwendung einer solchen Stützvorrichtung hergestelltes erfindungsgemäßes Halbzeug umfasst eine flächige Betonschale, in die Verbundmittel in einer solchen Weise eingebettet sind, dass Kuppen dieser Verbundmittel in einer Verbindungsrichtung aus der Betonschale herausragen. Das Halbzeug umfasst weiterhin in einem randnahen Bereich eine in die Betonschale eingebettete Hülse zur Aufnahme eines Fixierelements, das zur Fixierung des Halbzeugs während eines Weiterverarbeitungsschrittes zur Herstellung eines Beton-Doppelwandelements dient.A semi-finished product according to the invention produced using such a support device comprises a flat concrete shell in which composite means are embedded in such a way that peaks of these composite means protrude from the concrete shell in a connecting direction. The semi-finished product also includes: an area near the edge, a sleeve embedded in the concrete shell for receiving a fixing element, which is used to fix the semi-finished product during a further processing step for producing a concrete double wall element.
Die Hülse ist in einem randnahen Bereich eingebettet und weist eine Öffnung auf, die sich auf der den Kuppen der Verbundmitteln zugewandten Innenseite der Betonschale befindet. Die Hülse besteht vorzugsweise aus einem Kunststoff und ist mit stabilisierenden Längs- und/oder Querrippen versehen.The sleeve is embedded in an area near the edge and has an opening which is located on the inside of the concrete shell facing the tops of the composite means. The sleeve is preferably made of a plastic and is provided with stabilizing longitudinal and/or transverse ribs.
Ein unter Verwendung eines solchen Halbzeugs hergestelltes erfindungsgemäßes Beton-Doppelwandelement umfasst zwei flächige Betonschalen, in die abschnittsweise Verbundmittel eingebettet sind, die zur Verbindung und als Abstandshalter der Betonschalen dient. In eine dieser Betonschalen ist in einem randnahen Bereich eine Hülse zur Aufnahme eines Fixierelements einbetoniert. Diese Hülse befindet sich in einem randnahen Bereich der Betonschale und weist eine Öffnung auf, die sich auf einer der gegenüberliegenden Betonschale zugewandten Innenseite befindet. Die Hülse besteht vorzugsweise aus einem Kunststoff und ist mit stabilisierenden Längs- und/oder Querrippen versehen.A concrete double wall element according to the invention produced using such a semi-finished product comprises two flat concrete shells, in which composite means are embedded in sections, which serves to connect and as a spacer of the concrete shells. A sleeve for receiving a fixing element is concreted into one of these concrete shells in an area near the edge. This sleeve is located in an area of the concrete shell near the edge and has an opening which is located on an inside facing the opposite concrete shell. The sleeve is preferably made of a plastic and is provided with stabilizing longitudinal and/or transverse ribs.
Nachfolgend werden Ausführungsbeispiele und Varianten der Erfindung anhand der Zeichnung näher erläutert. Es zeigen:
Figur 1- eine schematische Schnittdarstellung eines erfindungsgemäßen Beton-Doppelwandelements, das unter Verwendung einer in
gezeigten Stützvorrichtung hergestellt wurde;Figur 2a - 2c 2a, 2bFigur - schematische Darstellungen einer erfindungsgemäßen Stützvorrichtung mit Fixierelement und Ankerelement in getrenntem (
) und verbundenem (Figur 2a ) Zustand;Figur 2b - Figur 2c
- eine schematische perspektivische Darstellung des Ankerelements der
Figur 2a ; - Figuren 3a - 3e:
- Einzelschritte bei der Herstellung eines Doppelwandelements:
- Figur 3a
- eine schematische Schnittdarstellung einer ersten Betonschale auf einer Palette;
- Figur 3b
- eine schematische Schnittdarstellung eines durch Aushärten der gegossenen ersten Betonschale der
Figur 3a erzeugten Halbzeugs; - Figur 3c
- eine schematische Schnittdarstellung des um 180° gewendeten ausgehärteten Halbzeugs der
Figur 3b über einer Schicht von Frischbeton; - Figur 3d
- eine schematische Schnittdarstellung des auf der Frischbetonschicht abgelegten gewendeten Halbzeugs;
- Figur 3e
- eine schematische Schnittdarstellung des durch Aushärten des Frischbetons erzeugten Beton-Doppelwandelements.
- Figure 1
- a schematic sectional view of a concrete double wall element according to the invention, which is constructed using an in
Figure 2a - 2c the support device shown was produced; - Figures 2a, 2b
- schematic representations of a support device according to the invention with fixing element and anchor element in separate (
Figure 2a ) and connected (Figure 2b ) Condition; - Figure 2c
- a schematic perspective view of the anchor element
Figure 2a ; - Figures 3a - 3e:
- Individual steps in the production of a double wall element:
- Figure 3a
- a schematic sectional view of a first concrete shell on a pallet;
- Figure 3b
- a schematic sectional view of a hardening of the cast first concrete shell
Figure 3a produced semi-finished products; - Figure 3c
- a schematic sectional view of the cured semi-finished product turned by 180°
Figure 3b over a layer of fresh concrete; - Figure 3d
- a schematic sectional view of the turned semi-finished product placed on the fresh concrete layer;
- Figure 3e
- a schematic sectional view of the concrete double wall element created by hardening the fresh concrete.
In der ersten Betonschale 2a des Beton-Doppelwandelements 1 ist eine Hülse 23 aus einem Kunststoff eingebettet, welche - wie im Folgenden im Detail beschrieben wird - der Aufnahme einer in
In einem ersten Prozessschritt werden auf der erste Palette 5a Schalungselemente 6a und Doppelwandabstandhalter 3' angebracht. Die Gesamtheit der Schalungselemente 6a bildet eine Schalung, die einen mit Flüssigbeton zu füllenden Innenraum 7a umschließt und der Außen- und Innenkontur des zu fertigenden Beton-Doppelwandelements 1 entspricht. In diesen Innenraum 7a wird Flüssigbeton 10a (sogenannter Frischbeton) eingegossen (
Weiterhin wird auf die Schalung 6a das Fixierelement 20 der in
Ein zweiter, als gebogener Metallstab 29 ausgeführter Endabschnitt 22 des Fixierelements 20 ragt sowohl vertikal (in einer in
Die auf die beschriebene Weise bestückte, in
Auf diese Weise wird ein in
Parallel oder anschließend zur Herstellung des Halbzeugs 9 werden auf einer zweiten Palette 5b Schalungselementen 6b angebracht, welche ebenfalls der Außen- und Innenkontur des zu fertigenden Beton-Doppelwandelements 1 entsprechen, die aber seitenverkehrt zur Schalung 6a der ersten Palette 5a angeordnet sind. Weiterhin wird das Ankerelement 30 auf das Fußteil 25 des Fixierelements 20 aufgesteckt (siehe
In den von den Schalungselementen 6b auf der zweiten Palette 5b gebildeten Innenraum 7b wird nun Flüssigbeton 10b eingegossen, und die auf der ersten Palette 5a befindliche ausgehärtete Erstschale 2a wird mit Hilfe einer (in den Figuren nicht gezeigten) Wendevorrichtung um 180° gewendet, so dass die Kuppen 4 der Verbundmittel 3 nach unten abragen (siehe
Die zweite Palette 5b mit der Flüssigbetonschicht 10b und der darauf gelagerten Erstschale 2b wird anschließend in die Härtestation verbracht. Aufgrund der Fixierung der ersten Betonschale 2b an der zweiten Palette 5b mittels der Stützvorrichtung 40 werden während dieses Transports Verschiebungen der ersten Betonschale 2b gegenüber der zweiten Palette 5b unterbunden. In der Härtestation wird der in den Innenraum 7b der zweiten Palette 5b eingegossene Flüssigbeton 10b zu einer zweiten Betonschale 2b (Zweitschale) ausgehärtet. Erstschale 2a und Zweitschale 2b sind nun fest miteinander verbunden, Verschiebungen der beiden Schalen 2a, 2b relativ zueinander werden durch die beidseitig einbetonierten Verbundmittel 3 verhindert (
Danach wird der Arretierschlitten 34 des Ankerelements 30 gelöst, so dass das Fixierelement 20 aus dem Ankerelement 30 herausgezogen werden kann. Nun wird das fertige Beton-Doppelwandelement 1 aus der zweiten Palette 5b entnommen (Pfeil 41), wobei das Ankerelement 30 zunächst auf der zweiten Palette 5b verbleibt und später abgenommen werden kann (siehe
Das Ankerelement 30 sowie das Fixierelement 20 können - nach Aufschieben einer weiteren Hülse 23 auf den ersten Endabschnitt 21 des Fixierelements 20 - zur Herstellung eines weiteren Beton-Doppelwandelements verwendet werden.The
- 11
- Beton-DoppelwandelementConcrete double wall element
- 2a, 2b2a, 2b
- Erste, zweite BetonschaleFirst, second concrete bowl
- 33
- VerbundmittelComposite means
- 3`3`
- DoppelwandabstandshalterDouble wall spacers
- 44
- abragende Bereiche der Verbundmittelprotruding areas of the composite means
- 5a, 5b5a, 5b
- Palettepalette
- 6a, 6b6a, 6b
- Schalungformwork
- 7a, 7b7a, 7b
- Innenraum der SchalungInterior of the formwork
- 88th
- TransportrolleTransport roller
- 99
- HalbzeugWorkpiece
- 10a, 10b10a, 10b
- FlüssigbetonLiquid concrete
- 11a11a
- randnaher Bereich der ersten BetonschaleArea near the edge of the first concrete shell
- 12a12a
- Rand der BetonschaleEdge of the concrete bowl
- 13a13a
- Innenseite der BetonschaleInside of the concrete shell
- 1414
- Verbindungsrichtungconnection direction
- 1515
- Hohlraum des Beton-DoppelwandelementsCavity of the concrete double wall element
- 2020
- FixierelementFixing element
- 2121
- erster Endabschnitt des Fixierelementsfirst end section of the fixing element
- 2222
- zweiter Endabschnitt des Fixierelementssecond end section of the fixing element
- 2323
- Hülsesleeve
- 2424
- RippenRibs
- 2525
- Fußteil des FixierelementFoot part of the fixing element
- 2626
- Außenseite HülseOutside sleeve
- 26'26'
- Öffnung der HülseOpening of the sleeve
- 2727
- AbstützbereichSupport area
- 2828
- Permanentmagnet im AbstützbereichPermanent magnet in the support area
- 2929
- gebogener Metallstabcurved metal rod
- 3030
- Ankerelementanchor element
- 3131
- Gehäuse AnkerelementHousing anchor element
- 3232
- Magnetmagnet
- 3333
- Aussparung im Gehäuse - Aufnahme für FixierelementRecess in the housing - holder for fixing element
- 3434
- ArretierschlittenLocking carriage
- 3535
- Schlitz oder Nut im ArretierschlittenSlot or groove in the locking slide
- 3636
- Fortsatz auf dem GehäuseExtension on the housing
- 3737
- trapezförmige Aussparung in ArretierschlittenTrapezoidal recess in locking slide
- 3838
- SchließrichtungClosing direction
- 4040
- StützvorrichtungSupport device
- 4141
- Entnahmerichtungremoval direction
Claims (16)
das Fixierelement (20) eine lösbar am Endabschnitt (21) des Fixierelements (20) befestigte Hülse (23) aufweist.Support device (40) for the precise relative positioning of two concrete shells (2a, 2b) in the course of producing a concrete double wall element (1), the support device (40)
the fixing element (20) has a sleeve (23) detachably attached to the end section (21) of the fixing element (20).
dadurch gekennzeichnet, dass
die Hülse (23) zumindest abschnittsweise aus einem Kunststoff besteht.Support device (40) according to claim 1,
characterized in that
the sleeve (23) consists at least in sections of a plastic.
dadurch gekennzeichnet, dass
eine Außenseite (26) der Hülse (23) mit Rippen (24) versehen ist.Support device (40) according to claim 1 or 2,
characterized in that
an outside (26) of the sleeve (23) is provided with ribs (24).
dadurch gekennzeichnet, dass
das Fixierelement (20) einen Abstützbereich (27) zur unmittelbaren oder mittelbaren Abstützung des Fixierelements (20) an einer die erste Betonschale (2a) tragenden Palette (5a) umfasst.Support device (40) according to one of the preceding claims,
characterized in that
the fixing element (20) comprises a support area (27) for direct or indirect support of the fixing element (20) on a pallet (5a) carrying the first concrete shell (2a).
dadurch gekennzeichnet, dass
das Fixierelement (20) im Abstützbereich (27) einen Permanentmagneten (28) aufweist, mit dessen Hilfe das Fixierelement (20) unmittelbar oder mittelbar an einer die erste Betonschale (2a) tragenden Palette (5a) fixierbar ist.Support device (40) according to claim 4,
characterized in that
the fixing element (20) in the support area (27) has a permanent magnet (28), with the help of which the fixing element (20) can be fixed directly or indirectly to a pallet (5a) carrying the first concrete shell (2a).
dadurch gekennzeichnet, dass
das Fixierelement (20) ein Fußteil (25) zur lösbaren Befestigung an dem Ankerelement (30) aufweist.Support device (40) according to one of the preceding claims,
characterized in that
the fixing element (20) has a foot part (25) for releasable attachment to the anchor element (30).
dadurch gekennzeichnet, dass
das Fixierelement (20) mittels einer verrastbaren Steckverbindung mit dem Ankerelement (30) verbindbar ist.Support device (40) according to claim 6,
characterized in that
the fixing element (20) can be connected to the anchor element (30) by means of a lockable plug connection.
dadurch gekennzeichnet, dass das Ankerelement (30) einen Permanentmagneten (32) umfasst, mit dessen Hilfe das Ankerelement (30) unmittelbar oder mittelbar an der die zweite Betonschale (2b) tragenden Palette (5b) fixierbar ist.Support device (40) according to one of the preceding claims,
characterized in that the anchor element (30) comprises a permanent magnet (32), with the help of which the anchor element (30) can be fixed directly or indirectly to the pallet (5b) carrying the second concrete shell (2b).
dadurch gekennzeichnet, dass
die erste Betonschalen (2a) eine zumindest abschnittsweise in einen randnahen Bereich (11a) dieser Betonschale (2a) eingebettete Hülse (23) zur Aufnahme eines Fixierelements (20) umfasst.Concrete double wall element (1) with two hardened, flat concrete shells (2a, 2b) and composite means (3), which are embedded in sections in the concrete shells (2a, 2b) and both for connecting and as spacers of the concrete shells (2a, 2b) serve,
characterized in that
the first concrete shells (2a) comprises a sleeve (23) embedded at least in sections in a region (11a) near the edge of this concrete shell (2a) for receiving a fixing element (20).
die Hülse (23) schräg in die erste Betonschale (2a) hineinragt und zu einer der zweiten Betonschale (2b) zugewandten Innenseite (13a) der ersten Betonschale (2a) hin geöffnet ist.Concrete double wall element (1) according to claim 9, characterized in that
the sleeve (23) projects obliquely into the first concrete shell (2a) and is open towards an inside (13a) of the first concrete shell (2a) facing the second concrete shell (2b).
dadurch gekennzeichnet, dass
die Hülse (23) zumindest abschnittsweise aus einem Kunststoff besteht.Concrete double wall element (1) according to claim 9 or 10,
characterized in that
the sleeve (23) consists at least in sections of a plastic.
eine Außenseite (26) der Hülse (23) mit Rippen (24) versehen ist.Concrete double wall element (1) according to one of claims 9 to 11, characterized in that
an outside (26) of the sleeve (23) is provided with ribs (24).
dadurch gekennzeichnet, dass
das Halbzeug (9) eine zumindest abschnittsweise in einen randnahen Bereich (11a) der Betonschale (2a) eingebettete Hülse (23) zur Aufnahme eines ersten Endabschnitts (21) eines Fixierelements (20) für eine Stützvorrichtung (40) umfasst.Semi-finished product (9) for producing a concrete double wall element (1), the semi-finished product comprising a hardened, flat concrete shell (2a) and composite means (3) embedded in sections in this concrete shell (2a), with crests (4) of these composite means (3) protrude in a connecting direction (14) from an inside (13a) of the concrete shell (2a),
characterized in that
the semi-finished product (9) comprises a sleeve (23) embedded at least in sections in a region (11a) near the edge of the concrete shell (2a) for receiving a first end section (21) of a fixing element (20) for a support device (40).
dadurch gekennzeichnet, dass
die Hülse (23) schräg in die Betonschale (2a) hineinragt und eine Öffnung (25) aufweist, die sich auf der den eingebetteten Verbundmitteln (3) zugewandten Innenseite (13a) der Betonschale (2a) befindet.Semi-finished product (9) according to claim 13,
characterized in that
the sleeve (23) projects obliquely into the concrete shell (2a) and has an opening (25) which is located on the inside (13a) of the concrete shell (2a) facing the embedded composite means (3).
dadurch gekennzeichnet, dass
die Hülse (23) zumindest abschnittsweise aus einem Kunststoff besteht.Semi-finished product (9) according to claim 13 or 14,
characterized in that
the sleeve (23) consists at least in sections of a plastic.
dadurch gekennzeichnet, dass
eine Außenseite (26) der Hülse (23) mit Rippen (24) versehen ist.Semi-finished product (9) according to one of claims 13 to 15,
characterized in that
an outside (26) of the sleeve (23) is provided with ribs (24).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102022110053.7A DE102022110053A1 (en) | 2022-04-26 | 2022-04-26 | Concrete double wall element as well as semi-finished product and supporting device for its production |
DE202022102235.6U DE202022102235U1 (en) | 2022-04-26 | 2022-04-26 | Concrete double wall element and semi-finished product and supporting device for its manufacture |
Publications (1)
Publication Number | Publication Date |
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EP4269054A1 true EP4269054A1 (en) | 2023-11-01 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP23166451.7A Pending EP4269054A1 (en) | 2022-04-26 | 2023-04-04 | Concrete double wall element and semi-finished product and support device for the production thereof |
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EP (1) | EP4269054A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112010003523T5 (en) * | 2009-09-02 | 2012-10-04 | 21St Century Structures, Llc | Embedded height adjustment mechanism for double-walled construction panels |
EP2775063A1 (en) * | 2013-03-05 | 2014-09-10 | PreConTech Precast Concrete Technology e.K. | Connection assembly for forming double-shell prefabricated concrete wall elements |
DE102018124980B3 (en) | 2018-10-10 | 2020-01-23 | Martin Schwarzenbeck & Co. Bauunternehmung und Betonwerk GmbH & Co. KG | Process and semi-finished product for the production of a concrete double wall element |
-
2023
- 2023-04-04 EP EP23166451.7A patent/EP4269054A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112010003523T5 (en) * | 2009-09-02 | 2012-10-04 | 21St Century Structures, Llc | Embedded height adjustment mechanism for double-walled construction panels |
EP2775063A1 (en) * | 2013-03-05 | 2014-09-10 | PreConTech Precast Concrete Technology e.K. | Connection assembly for forming double-shell prefabricated concrete wall elements |
DE102018124980B3 (en) | 2018-10-10 | 2020-01-23 | Martin Schwarzenbeck & Co. Bauunternehmung und Betonwerk GmbH & Co. KG | Process and semi-finished product for the production of a concrete double wall element |
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