EP3835506A1 - Connecting anchor for multilayer concrete slabs and multilayer concrete slab - Google Patents
Connecting anchor for multilayer concrete slabs and multilayer concrete slab Download PDFInfo
- Publication number
- EP3835506A1 EP3835506A1 EP19214728.8A EP19214728A EP3835506A1 EP 3835506 A1 EP3835506 A1 EP 3835506A1 EP 19214728 A EP19214728 A EP 19214728A EP 3835506 A1 EP3835506 A1 EP 3835506A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- concrete
- longitudinal side
- layer
- thermal insulation
- 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.)
- Granted
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- 239000004567 concrete Substances 0.000 title claims abstract description 166
- 238000009413 insulation Methods 0.000 claims abstract description 84
- 238000005452 bending Methods 0.000 claims abstract description 51
- 238000003780 insertion Methods 0.000 claims abstract description 16
- 230000037431 insertion Effects 0.000 claims abstract description 16
- 238000004873 anchoring Methods 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 5
- 239000004753 textile Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011209 textile-reinforced concrete Substances 0.000 description 2
- 241000490025 Schefflera digitata Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
-
- 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
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
-
- 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
-
- 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
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
- E04C2002/045—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete with two parallel leaves connected by tie anchors
- E04C2002/046—Flat anchors
Definitions
- the invention relates to a connecting anchor of the type specified in the preamble of claim 1 and a multilayer concrete slab of the type specified in the preamble of claims 13, 14 and 15.
- connection anchor for multi-layer concrete slabs, so-called sandwich panels, which is essentially designed as a rectangular slab. Adjacent to both longitudinal sides, the connecting anchor has openings through which anchoring rods can be inserted.
- the U.S. 4,624,089 A discloses a connecting anchor for use in sandwich panels, which has bent end sections on one longitudinal side through which anchoring rods are inserted.
- the invention is based on the object of creating a connecting anchor for multilayer concrete slabs which has improved properties. Another object of the invention is to provide multilayer concrete slabs with an advantageous structure.
- this object is achieved by a connecting anchor with the features of claim 1 or by a connecting anchor with the features of claim 7.
- the task is achieved by a concrete slab with the features of claim 13, by a Concrete slab with the features of claim 14 or solved by a concrete slab with the features of claim 15.
- the plate has an end portion adjacent to at least one longitudinal side, in which the plate at a first bending point in a first bending direction out of the plate plane of the plate and at a second bending point in a second bending direction, which runs in the opposite direction to the first bending direction, is bent.
- the fact that the plate is bent out of the plane of the plate and back in the direction of the plane of the plate results in a zigzag course of the plate.
- undercuts are formed on both sides of the plate in the direction of a central plane lying between the longitudinal sides of the plate. If the connection anchor is embedded in the concrete of a sandwich panel, then there are undercuts in the direction of the thermal insulation layer.
- the at least one end section with a first and a second bending point.
- the first and second bending points are provided in particular when the thickness of the concrete layer into which the connecting anchor protrudes is comparatively small.
- the thickness of the concrete layer is preferably less than 5 cm.
- the plate preferably has an undulating profile which is formed by a plurality of bending points. At least four bending points per end section are considered to be particularly advantageous.
- the wave-shaped profile is created in particular by the fact that the bending points are at the same distance from the Plate level can be arranged.
- the plate has an end section with at least one first bending point and one second bending point adjacent to each longitudinal side. End sections with a wave-shaped profile are preferably provided on both longitudinal sides.
- the plate advantageously has at least one recess on the at least one longitudinal side.
- the bottom of the recess is advantageously rounded, preferably formed in a continuous radius. This allows tensions at the bottom of the recess to be minimized.
- the at least one recess preferably separates fingers of the plate from one another. At least two fingers, which are separated from one another by a recess, are particularly preferably provided on each longitudinal side of the plate.
- the plate has at least one opening protruding through the plate on the at least one longitudinal side.
- the at least one opening is advantageously arranged in a finger.
- Each finger particularly preferably has at least two openings.
- the two openings of each finger are advantageously arranged offset from one another both in the longitudinal direction and in the height direction of the plate.
- the at least one opening advantageously protrudes through the area of the end section which has the at least one bending point.
- the at least one opening is advantageously arranged at least partially between two bending points.
- the at least one opening achieves improved anchoring of the connecting anchor, in particular in textile-reinforced concrete layers. If the concrete layer does not have textile reinforcement but reinforcing bars, the at least one opening can serve to receive a reinforcing bar that forms additional reinforcement for the plate.
- a delimiting element to limit the depth of insertion of the connecting anchor into the Thermal insulation layer held detachable.
- the delimiting element can optionally be arranged in one of the at least two receptacles due to the releasable fixing in the receptacle.
- the insertion depth of the connection anchor into the thermal insulation layer is specified by choosing a receptacle. Because several receptacles are provided at different distances from the second longitudinal side, the depth of insertion of the connecting anchor into the thermal insulation layer can be adjusted.
- one of the concrete layers preferably a second concrete layer, which forms the facing layer
- the thermal insulation layer is then placed on top of this concrete layer.
- the at least one connection anchor is pressed through the thermal insulation layer into the not yet hardened concrete layer.
- the connection anchor is pressed into the thermal insulation layer until a support section of the delimitation element comes to rest on the upper side of the thermal insulation layer and thus makes further insertion of the connection anchor into the thermal insulation layer and the already poured first concrete layer difficult or impossible.
- the second concrete layer is then poured onto the thermal insulation layer, and the sections of the connecting anchors protruding beyond the thermal insulation layer are cast into this concrete layer.
- the adjustable insertion depth can ensure that the connecting anchor cannot be pushed as far as the outside of the second concrete layer, especially with thin concrete layers. This ensures that the connection anchor is not visible from the outside of the concrete slab.
- the at least one receptacle is arranged in a transverse side of the plate.
- the delimiting element can preferably be inserted or clipped into the receptacle.
- the at least one receptacle is arranged between the transverse sides of the plate.
- the receptacles arranged between the transverse sides are advantageously designed to be closed over their entire circumference.
- the delimitation element is designed in two parts. As a result, the sections from opposite sides of the receptacle can be arranged in the receptacle and then connected to one another. It can be provided that a plate has both receptacles on a transverse side and receptacles between the transverse sides of the plate.
- the receptacles are arranged mirror-symmetrically to a center plane of the plate running centrally between the longitudinal sides.
- the delimitation element can be used both to limit the insertion depth in the first concrete layer and to limit the insertion depth in the second concrete layer.
- the plate is designed mirror-symmetrically to the center plane. As a result, the orientation of the plate does not have to be taken into account when it is arranged in a thermal insulation layer and a concrete layer.
- the shape of the connecting anchor is advantageously adapted with regard to a low heat transfer between the concrete layers.
- the shape of the section of the plate provided for arrangement in the thermal insulation layer advantageously deviates from a rectangular shape. It is preferably provided that one longitudinal side of the connecting anchor is shorter than the other longitudinal side. The long side with the smaller length is preferably arranged in the concrete layer with a smaller thickness, advantageously in the facing shell. This is especially the second layer of concrete. At least one transverse side advantageously runs in at least one section, in particular in the section to be arranged within the thermal insulation layer, to one of the longitudinal sides at an angle of less than 90 °.
- the connecting anchor has at least one further recess in the area which is provided for arrangement in the thermal insulation layer. The at least one further recess reduces the heat transfer from the first to the second longitudinal side.
- the concrete slab comprises a first concrete layer, a second concrete layer and a thermal insulation layer arranged between the concrete layers as well as at least one connecting anchor.
- the connection anchor comprises a plate which has a first and a second longitudinal side. The first long side is arranged in the first concrete layer and the second long side in the second concrete layer.
- the plate has a first transverse side and a second transverse side which extend from the first concrete layer through the thermal insulation layer into the second concrete layer.
- the slab Adjacent to at least one longitudinal side, the slab has an end section which is arranged in one of the concrete layers and in which the slab at a first bending point in a first bending direction out of the plane of the slab and at a second bending point in a second bending direction, which is the opposite direction to the first Bending direction is, is bent.
- the at least two bending points in the end section which is arranged in one of the concrete layers, result in an improved anchoring of the end section in the concrete.
- the concrete slab is advantageously a so-called sandwich panel, in which the two concrete layers are arranged directly on the two opposite flat sides of the thermal insulation layer and are firmly connected to it.
- An independent inventive idea relates to the design of a concrete slab with a first concrete layer, a second concrete layer and a thermal insulation layer arranged between the concrete layers, the concrete slab having at least one connection anchor with a plate, the plate having at least two receptacles, which are at different distances from one second longitudinal side of the plate are arranged, wherein a delimiting element is arranged in one of the receptacles, which rests with a support portion on the thermal insulation layer.
- the insertion depth of the connection anchor into the thermal insulation layer and one of the concrete layers can be adjusted in a simple manner.
- a desired insertion depth can be ensured.
- All the limiting elements of the connecting anchor are arranged in receptacles in the plate which are at the same distance from the second longitudinal side of the plate. This achieves a uniform insertion depth of the panel into the thermal insulation layer.
- the plate has at least one recess on the at least one longitudinal side which separates two fingers of the plate from one another. The fingers stick out into one of the layers of concrete.
- a bottom of the recess is arranged in the thermal insulation layer.
- the fact that the bottom of the recess is arranged in the thermal insulation layer results in a reduced heat input into the concrete layer into which the fingers protrude. This results in improved thermal insulation.
- the fact that the bottom of the recess is arranged in the thermal insulation layer results in an enlarged cross-section of the plate in the thermal insulation layer, so that sufficient strength of the plate is achieved and high forces can be transmitted between the concrete layers.
- Fig. 1 shows schematically a section of a concrete slab 1.
- the concrete slab 1 has a multilayer structure.
- the concrete slab 1 comprises a first concrete layer 11, which is advantageously a base layer, a second concrete layer 12, which in particular forms a facing, and a thermal insulation layer 2 arranged between the first concrete layer 11 and the second concrete layer 12 for the transmission of forces between the first concrete layer 11 and the second concrete layer 12 through the thermal insulation layer 2, at least one connecting anchor 3 is provided.
- a plurality of connection anchors 3, optionally in combination with needle-shaped connection anchors (not shown) or other types of connection anchors, are preferably positioned distributed in a predetermined arrangement in the concrete slab 1.
- the connecting anchor 3 comprises a plate 4.
- the plate 4 has an approximately rectangular shape. Another shape of the plate 4 can also be advantageous.
- the slab 4 has a first longitudinal side 5, which is arranged in the first concrete layer 11, and an opposite, second longitudinal side 6, which is arranged in the second concrete layer 12.
- the two long sides 5 and 6 are connected to one another via transverse sides 7 and 8.
- the transverse sides 7 and 8 extend from the first concrete layer 11 through the thermal insulation layer 2 into the second concrete layer 12.
- the plate 4 has an imaginary center plane 31 running centrally between the longitudinal sides 5 and 6. In the exemplary embodiment, the plate 4 is designed mirror-symmetrically to the center plane 31.
- the plate 4 has several receptacles 14 on its transverse sides 7 and 8. In the exemplary embodiment, five receptacles 14 are provided on each transverse side 7 and 8, respectively.
- the receptacles 14 are approximately U-shaped.
- a delimiting element 15 is arranged on each transverse side 7 and 8 in the receptacles 14 which are closest to the second longitudinal side 6.
- the delimitation element 15, limits the insertion depth t of the connecting anchor 3 in the composite of thermal insulation layer 2 and second concrete layer 12 during the manufacture of concrete slab 1.
- the thermal insulation layer 2 has a thickness ki.
- the plate 4 has several recesses 10 on each longitudinal side 5 and 6.
- four recesses 10 are provided on each longitudinal side 5 and 6.
- the recesses 10 are slit-shaped and open to the respective adjacent longitudinal side 5, 6.
- the recesses 10 have a base 30 which is advantageously curved, in the exemplary embodiment partially circular. How Fig. 1 shows, the bases 30 of the recesses 10, which are arranged adjacent to the second longitudinal side 6, are arranged in the thermal insulation layer 2.
- the floors 30, which are arranged adjacent to the first longitudinal side 5, run in the first concrete layer 11.
- Fig. 2 shows the plate 4 of the connecting anchor 3 in detail.
- the plate 4 is preferably formed from a sheet of constant thickness.
- the plate 4 is preferably a bent sheet metal part from which openings, recesses, recesses and the like are punched out and which is bent into the desired shape in the end sections 19 and 20.
- the plate 4 can for example consist of steel, preferably of stainless steel. However, a design made from a different material can also be advantageous.
- the plate has a length d measured parallel to the central plane 31 and a height h measured perpendicular to the central plane 31.
- the height h corresponds at least to the thickness k of the thermal insulation layer 2 (see Fig. 1 ) plus double the minimum
- the recesses 10 separate individual fingers 13 of the plate 4 from one another.
- four recesses 10 and five fingers 13 are provided on each longitudinal side 5, 6.
- the number of fingers 13 and recesses 10 can be selected to be adapted to the particular application.
- the recesses 10 have a width g.
- the fingers 13 have a width f.
- the width f of the fingers 13 is advantageously 0.5 to 3 times the width g of the recesses 10.
- openings 9 are provided in the end sections 19 and 20.
- Each finger 13 advantageously has at least one opening 9, preferably at least two openings 9.
- each transverse side 5 The receptacles 14 of each transverse side 5, 6 have different distances from the second longitudinal side 6.
- the receptacle 14 closest to the longitudinal side 6 is at a distance ai from the longitudinal side 6.
- the subsequent receptacle 14 is arranged at a distance a 2 from the longitudinal side 6, which is slightly more than the width of a receptacle 14 greater than the distance ai.
- the other receptacles 14 are arranged at distances a 3 , a 4 and a as to the longitudinal side 6.
- the distances ai to as are selected in such a way that constant distances between adjacent receptacles 14 result.
- Fig. 3 shows the design of the end sections 19 and 20 in detail.
- a first bending point 21 is provided, at which the plate 4 is bent out of its plate plane 27 in a first bending direction 25.
- the plate 4 is bent in a bending direction 26 which is opposite to the bending direction 25.
- a third bending point 23 there is a further bend in the bending direction 25 and at a fourth bending point 24 there is a further bend in the bending direction 26.
- the plate plane 27 runs in the flat area of the plate 4 between the end sections 19 and 20 centrally between a first flat side 28 and a second flat side 29 of the plate 4.
- the bending points 22, 23 and 24 are at the same distance from the plane 27 of the plate.
- a bend of 90 ° takes place at the bending points 22, 23 and 24. This results in a zigzag or undulating course of the plate 4 in the end sections 19 and 20. How Fig. 3 also shows, the plate 4 has a constant thickness p. In the exemplary embodiment, the bending points 21 to 24 run parallel to the longitudinal sides 5, 6.
- the Figures 4 to 6 show a first exemplary embodiment of a delimiting element 15.
- the delimiting element 15 can, for example, be a bent over, deformed wire section.
- the delimitation element 15 has a support section 16 which connects two feet 17 to one another. In the exemplary embodiment, the feet 17 run at right angles to the support section 16.
- the support section 16 is designed as a transverse web. A point 18 is formed on each of the feet 17, with which the delimiting element 15 can be pressed into the thermal insulation layer 2.
- Fig. 7 shows the connecting anchor 3 during the production of a concrete slab 1.
- the connecting anchor 3 carries a delimiting element 15 on each transverse side 7 and 8. Both delimiting elements 15 are arranged in receptacles 14 which are at the same distance from the second longitudinal side 6.
- a second concrete layer 12 of the concrete slab 1 has already been poured.
- a thermal insulation layer 2 is placed on the second concrete layer 12.
- the connecting anchor 3 is now pressed through the thermal insulation layer 3 and into the not yet set concrete of the second concrete layer 12 until the support sections 16 of the delimiting elements 15 are on the top of the thermal insulation layer 2 issue.
- the support sections 16 can be pressed slightly into the thermal insulation layer 2.
- Fig. 8 shows the arrangement after the connecting anchor 3 has been pressed in.
- the support sections 16 of the two delimiting elements 15 rest on the thermal insulation layer 2.
- the plate 4 protrudes from the thermal insulation layer 2.
- the feet 17 and tips 18 are arranged within the thermal insulation layer 2.
- Fig. 9 shows an embodiment of a connection anchor 3, which is arranged in a second concrete layer 12 and a thermal insulation layer 2.
- the delimiting element 15 is arranged in the receptacle 14, which is at a distance a 3 from the second longitudinal side 6.
- the thermal insulation layer 2 has a thickness k 2 which is greater than the thickness ki of the thermal insulation layer 2 in the exemplary embodiment Fig. 1 is.
- the insertion depth t can be adapted to the thickness k of the thermal insulation layer 2 in such a way that only the fingers 13 protrude into the second concrete layer 12 and the bottoms 30 of the recesses 10 are arranged within the thermal insulation layer 2.
- a suitable selection of the insertion depth t can also ensure that the connecting anchor 3 cannot reach the outside of the second concrete layer 12 and is therefore not visible in the finished concrete slab 1.
- Fig. 10 shows a further exemplary embodiment of a plate 4 of a connecting anchor 3.
- the plate 4 has receptacles 34 for delimiting elements 15 arranged between the transverse sides 7 and 8.
- the receptacles 34 are designed as openings that are closed over their entire circumference.
- the receptacles 34 can be circular receptacles 34, for example.
- two rows of five receptacles 34 each are arranged at a distance m from one another. The distance m between the rows is advantageously at least 20% of the length d of the plate 4.
- Each row of receptacles 34 has five in the exemplary embodiment Recordings 34 at different distances ai to as to the second longitudinal side 6.
- a different number of rows of receptacles 34 can also be advantageous.
- five receptacles 14 are arranged on each of the two transverse sides 7, 8, which have the same distances ai to as from the second longitudinal side 6 as the receptacles 34 to be ordered.
- the Figures 11 to 13 show an exemplary embodiment of a delimiting element 15 which is provided for arrangement in receptacles 34.
- the limiting element 15 is designed in two parts.
- the support section 16 is divided into two sections 16.1 and 16.2.
- the support section 16 is designed as a web.
- the two sections 16.1 and 16.2 can be connected to one another, in the exemplary embodiment via a plug connection which is formed by a pin 35 on section 16.2 and a recess 36 on section 16.1.
- the further structure of the delimiting element 15 corresponds to the structure of the in FIG Figures 4 to 6 limiting element 15 shown.
- Fig. 14 shows the arrangement of delimiting elements 15 in receptacles 34 before the connection anchor 3 is installed in the second concrete layer 12 and the thermal insulation layer 2.
- FIG. 15 to 17 a further embodiment of a limiting element 15 is shown.
- the limiting element 15 from the Figures 15 to 17 has a support section 16 which is designed as a plate.
- a foot 17 with a tip 18, which extends perpendicularly out of the plane of the support section 16, is arranged on the delimiting element 16.
- the support section 16 has a slot 37.
- a web 38 is arranged which is circular and the diameter of which is slightly larger than the thickness of the plate forming the support section 16.
- the web 38 protrudes slightly above the plane of the support section 16.
- the delimiting element 15 can be glued into a receptacle 14 of a plate 4.
- All delimitation elements 15 are preferably made as plastic injection molded parts.
- Fig. 8 shows two delimitation elements 15 in the design according to FIG Figures 15 and 17 on a plate 4 which is inserted into a thermal insulation layer 2 and a second concrete layer 12 underneath, not shown.
- the arrangement is with the second concrete layer 12 in Fig. 19 shown.
- Fig. 19 shows the arrangement of the web 38 in the receptacle 14 and the arrangement of the support section 16 on the thermal insulation layer 2.
- the thermal insulation layer 2 has a first side 32 that corresponds to that of FIG Fig. 19 First concrete layer 11, not shown, faces, and a second side 33, which faces the second concrete layer 12.
- the support section 16 rests on the second side 32.
- the feet 17 and the tips 18 protrude into the thermal insulation layer 2.
- the bottoms 30 of the recesses 10 run on the second longitudinal side 6 within the thermal insulation layer 2.
- Fig. 20 shows a further embodiment of a multi-layer concrete slab 1.
- the concrete slab 20 comprises a first concrete layer 11 and a second concrete layer 12, in each of which reinforcing bars 39 are arranged.
- the concrete layers 11 and 12 are connected to one another via connecting anchors 3, of which in FIG Fig. 20 one is shown.
- the reinforcing bars 39 are arranged in a grid-like manner parallel and perpendicular to the plane of the plate 4.
- the reinforcing bars 39 running parallel to the plane of the plate 4 run at the level of the fingers 13.
- the reinforcing bars 39 running perpendicular to the plane of the plate 4 run through recesses 10 between adjacent fingers 13.
- each finger 13 points to in the embodiment Fig. 20 four openings 9. It can be provided that additional reinforcing bars are also inserted through individual openings 9 in fingers 13.
- the plate 4 after Fig. 20 differs from the previous embodiments also in that the basic shape of the plate 4 in the Thermal insulation layer 2 arranged section deviates from the rectangular shape.
- the section of the slab 4 protruding into the second concrete layer 12 is narrower than the section protruding into the first concrete layer 11.
- the plate 4 has a width b 1 which is greater than a width b 2 of the end section 20 protruding into the second concrete layer 12.
- one transverse side of the plate 4, in the exemplary embodiment the second transverse side 8 runs partially inclined to the longitudinal sides 5 and 6.
- the second transverse side 8 closes in part of the area arranged in the thermal insulation layer 2 with the second longitudinal side 6 an angle ⁇ which is less than 90 °.
- the angle ⁇ is advantageously 20 ° to 80 °, in particular 30 ° to 70 °. In the exemplary embodiment, the angle ⁇ is approximately 60 °.
- the second concrete layer 12 is comparatively thin.
- the second concrete layer 12 has a thickness n which is advantageously less than 5 cm, in particular less than 4 cm, preferably less than 3 cm.
- a second concrete layer 12 with a greater thickness n can also be advantageous.
- the thickness n of the second concrete layer 12 can advantageously be less than 5 cm, in particular less than 4 cm, preferably less than 3 cm.
- the second concrete layer 12 advantageously has a textile reinforcement. Textile reinforcement is provided in particular for concrete layers 11, 12 with a thickness n of less than 5 cm.
- the embodiment according to Fig. 21 shows a concrete slab 1, the structure of which is essentially that of the concrete slab 1 from Fig. 20 corresponds to.
- the concrete slab 1 from Fig. 21 differs from the embodiment according to Fig. 20 by the design of the section of the plate 4 arranged within the thermal insulation layer 2.
- the plate 4 according to Fig. 21 has, in addition to the recesses 10, which separate the fingers 13 from one another, a further recess 40.
- the further recess 40 is arranged in the area of the plate 4 lying within the thermal insulation layer 2. Due to the Further recess 40, webs 42 are formed on both sides of the further recess 40. As a result, the heat transfer from the second end section 20 to the first end section 19 is reduced.
- the end sections 19 and 20 are offset from one another in the longitudinal direction of the plate 4.
- the section of the plate 4 arranged in the thermal insulation layer 2 has the shape of a parallelogram.
- the end sections 19 and 20 have the same width b.
- the transverse sides 7 and 8 are inclined to the longitudinal sides 5 and 6 by an angle ⁇ which is less than 90 °. In the embodiment according to Fig. 22 the angle ⁇ is about 60 °. Both long sides 7 and 8 are inclined in the same direction. This results in a length d of the plate 4 which is greater than the width b of the end sections 19 and 20. Different widths b of the end sections 19 and 20 can also be advantageous.
- the embodiment according to Fig. 23 shows a concrete slab 1 which has a connecting anchor 3 with a slab 4.
- the plate 4 has five fingers 13 on each longitudinal side 5, 6.
- the height h of the plate 4 is significantly smaller than its length d. In the exemplary embodiment, the height h is less than half the length d.
- the thickness k of the thermal insulation layer 2 is comparatively small.
- Bottoms 30 of opposing recesses 10 are at a distance c from one another. Because the bottoms 30 of the recesses 10 on both longitudinal sides 5 and 6 protrude into the thermal insulation layer 2, opposing bottoms 30 show in the design Fig. 23 only a small distance c to each other. In this exemplary embodiment, the length e of the fingers 13 is greater than the distance c.
- the Figures 24 to 29 show different variants for plates 4 of connecting anchors 3, which differ in height h and length d.
- the number of fingers 13 is adapted in accordance with the respective length d.
- the ones in the Figures 23 to 29 The plates 4 shown have ten receptacles 14 on each transverse side 7, 8, with five receptacles 14 are arranged on each side of the central plane 31.
- the receptacles 14 are arranged mirror-symmetrically to the central plane 31, so that the orientation of the plate 4 does not have to be taken into account when producing a concrete slab 1.
- FIG. 24a The design of the recordings 14 is in Figure 24a shown in detail. How Figure 24a shows, a latching element 41 is arranged on each receptacle 14, which makes the entry opening into the receptacle 14 smaller. The remaining opening to the outside is preferably slightly smaller than the diameter of a delimiting element 15 to be arranged in the receptacle 14. As a result, the delimiting element 15 is locked in the receptacle 14 and is held securely in the receptacle 14, in particular during the assembly of the connecting anchor 3 on a thermal insulation layer 2. As the figures show, in the exemplary embodiment the latching element 41 is arranged on the side of a receptacle 14 that is remote from the center plane 31.
- the plate 4 shown has two fingers 13 on each longitudinal side 5, 6.
- the height h is approximately 0.5 to 1.5 times the length d of the plate 4.
- three fingers 13 are provided on each longitudinal side 5, 6.
- the length d of the plate 4 is correspondingly increased compared to the height h.
- seven fingers 13 are provided on each longitudinal side 5, 6.
- the length d is here significantly greater than the height h.
- Fig. 27 shows an embodiment with four fingers 13 on each longitudinal side 5, 6.
- the height h of the plate 4 is in the embodiments according to Figures 23 to 27 equal.
- the change in the length d changes the transferable forces between the concrete layers 11 and 12 and therefore serves to adapt a connecting anchor 3 to the prevailing forces.
- the Figures 28 and 29 show further exemplary embodiments for plates 4 of connecting anchors 3 which, compared to the ones shown in FIGS Figures 23 to 27 Embodiments shown have a greater height h.
- the distance c between the bottoms 30 of opposing recesses 10 is also increased.
- the plates 4 in the Figures 28 and 29 each have two fingers 13 on each longitudinal side 5, 6. Another too Number of fingers 13 on each longitudinal side 5, 6 can be advantageous.
- the greater height h allows the panels 4 to be used for thermal insulation layers 2 of greater thickness.
- the height h is about 1 to 2 times the length d.
- the height h is 5 to 10 times the length d.
- the dimensions of the fingers 13 and the recesses 10 are in the embodiments according to Figures 23 to 29 equal. By this in the embodiment according to Fig. 29 The resulting enlargement of the distance c can be arranged at least one bottom 30 of a recess 10 outside of the thermal insulation layer 2.
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Abstract
Ein Verbindungsanker für mehrschichtige Betonplatten umfasst eine Platte (4), die eine erste Längsseite (5) zur Anordnung in einer ersten Betonschicht (11) und eine zweite Längsseite (6) zur Anordnung in einer zweiten Betonschicht (12) sowie eine erste Querseite (7) und eine zweite Querseite (8), die jeweils die erste Längsseite (5) mit der zweiten Längsseite (6) verbinden, aufweist. Die Platte (4) weist angrenzend an mindestens eine Längsseite (5, 6) einen Endabschnitt (19, 20) auf, in dem die Platte (4) an einer ersten Biegestelle (21) in einer ersten Biegerichtung (25) aus der Plattenebene (27) der Platte (4) und an einer zweiten Biegestelle (22) in einer zweiten Biegerichtung (26), die in Gegenrichtung zur ersten Biegerichtung (20) verläuft, gebogen ist. Die Platte (4) weist mindestens zwei Aufnahmen (14, 34) auf, die in unterschiedlichen Abständen (a) zur zweiten Längsseite (6) angeordnet sind. In einer der mindestens zwei Aufnahmen (14, 34) ist ein Begrenzungselement (15) zur Begrenzung der Einschubtiefe (t) des Verbindungsankers (3) in die Wärmedämmschicht (2) lösbar gehalten. Eine mehrschichtige Betonplatte (1) umfasst eine erste Betonschicht (11), eine zweite Betonschicht (12), eine zwischen den Betonschichten (11, 12) angeordnete Wärmedämmschicht (2) und mindestens einen Verbindungsanker (1).A connection anchor for multi-layer concrete slabs comprises a slab (4) which has a first longitudinal side (5) for arrangement in a first concrete layer (11) and a second longitudinal side (6) for arrangement in a second concrete layer (12) as well as a first transverse side (7 ) and a second transverse side (8) which each connect the first longitudinal side (5) to the second longitudinal side (6). The plate (4) has, adjacent to at least one longitudinal side (5, 6), an end section (19, 20) in which the plate (4) at a first bending point (21) in a first bending direction (25) out of the plate plane ( 27) of the plate (4) and at a second bending point (22) in a second bending direction (26) which runs in the opposite direction to the first bending direction (20). The plate (4) has at least two receptacles (14, 34) which are arranged at different distances (a) from the second longitudinal side (6). A delimiting element (15) for delimiting the insertion depth (t) of the connecting anchor (3) into the thermal insulation layer (2) is detachably held in one of the at least two receptacles (14, 34). A multi-layer concrete slab (1) comprises a first concrete layer (11), a second concrete layer (12), a thermal insulation layer (2) arranged between the concrete layers (11, 12) and at least one connection anchor (1).
Description
Die Erfindung betrifft einen Verbindungsanker der im Oberbegriff des Anspruchs 1 angegebenen Gattung sowie eine mehrschichtige Betonplatte der im Oberbegriff der Ansprüche 13, 14 und 15 angegebenen Gattung.The invention relates to a connecting anchor of the type specified in the preamble of
Aus der
Die
Der Erfindung liegt die Aufgabe zugrunde, einen Verbindungsanker für mehrschichtige Betonplatten zu schaffen, der verbesserte Eigenschaften aufweist. Eine weitere Aufgabe der Erfindung liegt darin, mehrschichtige Betonplatten mit vorteilhaftem Aufbau anzugeben.The invention is based on the object of creating a connecting anchor for multilayer concrete slabs which has improved properties. Another object of the invention is to provide multilayer concrete slabs with an advantageous structure.
Diese Aufgabe wird bezüglich des Verbindungsankers durch einen Verbindungsanker mit den Merkmalen des Anspruchs 1 oder durch einen Verbindungsanker mit den Merkmalen des Anspruchs 7 gelöst. Bezüglich der mehrschichtigen Betonplatte wird die Aufgabe durch eine Betonplatte mit den Merkmalen des Anspruchs 13, durch eine Betonplatte mit den Merkmalen Anspruchs 14 oder durch eine Betonplatte mit den Merkmalen des Anspruchs 15 gelöst.With regard to the connecting anchor, this object is achieved by a connecting anchor with the features of
Zur Verbesserung der Verankerung des Verbindungsankers im umgebenden Beton sieht Anspruch 1 vor, dass die Platte angrenzend an mindestens eine Längsseite einen Endabschnitt aufweist, in dem die Platte an einer ersten Biegestelle in einer ersten Biegerichtung aus der Plattenebene der Platte und an einer zweiten Biegestelle in einer zweiten Biegerichtung, die in Gegenrichtung zur ersten Biegerichtung verläuft, gebogen ist. Dadurch, dass die Platte aus der Plattenebene und zurück in Richtung auf die Plattenebene gebogen ist, ergibt sich ein zickzackförmiger Verlauf der Platte. Dadurch werden auf beiden Seiten der Platte Hinterschnitte in Richtung auf eine zwischen den Längsseiten der Platte liegende Mittelebene gebildet. Wird der Verbindungsanker im Beton einer Sandwichplatte eingebettet, so ergeben sich Hinterschnitte in Richtung auf die Wärmedämmschicht. Dadurch wird eine verbesserte Verankerung des Verbindungsankers und eine bessere Kraftübertragung zwischen den Betonschichten der Betonplatte erzielt. Aufgrund der zweiten Biegestelle, an der die Platte in der zweiten Biegerichtung gebogen ist, kann die Gesamtdicke der Platte klein gehalten werden, so dass die Platte gut in Zwischenräume von vorhandener Bewehrung einer Betonschicht gesteckt werden kann.To improve the anchoring of the connecting anchor in the surrounding concrete,
Insbesondere für textilbewehrte Betonschichten ist die Gestaltung des mindestens einen Endabschnitts mit einer ersten und einer zweiten Biegestelle vorteilhaft. Die erste und zweite Biegestelle sind insbesondere vorgesehen, wenn die Dicke der Betonschicht, in die der Verbindungsanker ragt, vergleichsweise gering ist. Die Dicke der Betonschicht beträgt bevorzugt weniger als 5 cm.In particular for textile-reinforced concrete layers, it is advantageous to design the at least one end section with a first and a second bending point. The first and second bending points are provided in particular when the thickness of the concrete layer into which the connecting anchor protrudes is comparatively small. The thickness of the concrete layer is preferably less than 5 cm.
Bevorzugt weist die Platte in dem mindestens einen Endabschnitt ein wellenförmiges Profil auf, das durch mehrere Biegestellen gebildet ist. Als besonders vorteilhaft werden mindestens vier Biegestellen je Endabschnitt angesehen. Das wellenförmige Profil entsteht dabei insbesondere dadurch, dass die Biegestellen in gleichem Abstand zur Plattenebene angeordnet werden. In besonders vorteilhafter Gestaltung weist die Platte angrenzend zu jeder Längsseite einen Endabschnitt mit mindestens einer ersten Biegestelle und einer zweiten Biegestelle auf. Bevorzugt sind an beiden Längsseiten Endabschnitte mit wellenförmigem Profil vorgesehen.In the at least one end section, the plate preferably has an undulating profile which is formed by a plurality of bending points. At least four bending points per end section are considered to be particularly advantageous. The wave-shaped profile is created in particular by the fact that the bending points are at the same distance from the Plate level can be arranged. In a particularly advantageous embodiment, the plate has an end section with at least one first bending point and one second bending point adjacent to each longitudinal side. End sections with a wave-shaped profile are preferably provided on both longitudinal sides.
Vorteilhaft weist die Platte an der mindestens einen Längsseite mindestens eine Aussparung auf. Der Boden der Aussparung ist vorteilhaft gerundet, bevorzugt in einem durchgehenden Radius ausgebildet. Dadurch können Spannungen am Boden der Aussparung minimiert werden. Die mindestens eine Aussparung trennt vorzugsweise Finger der Platte voneinander. Besonders bevorzugt sind an jeder Längsseite der Platte mindestens zwei Finger vorgesehen, die durch eine Aussparung voneinander getrennt sind.The plate advantageously has at least one recess on the at least one longitudinal side. The bottom of the recess is advantageously rounded, preferably formed in a continuous radius. This allows tensions at the bottom of the recess to be minimized. The at least one recess preferably separates fingers of the plate from one another. At least two fingers, which are separated from one another by a recess, are particularly preferably provided on each longitudinal side of the plate.
Zur Verbesserung der Verankerung des Verbindungsankers im umgebenden Beton ist vorteilhaft vorgesehen, dass die Platte an der mindestens einen Längsseite mindestens eine die Platte durchragende Öffnung aufweist. Die mindestens eine Öffnung ist vorteilhaft in einem Finger angeordnet. Besonders bevorzugt weist jeder Finger mindestens zwei Öffnungen auf. Die beiden Öffnungen jedes Fingers sind vorteilhaft sowohl in Längsrichtung als auch in Höhenrichtung der Platte zueinander versetzt angeordnet. Die mindestens eine Öffnung durchragt vorteilhaft den Bereich des Endabschnitts, der die mindestens eine Biegestelle aufweist. Vorteilhaft ist die mindestens eine Öffnung zumindest teilweise zwischen zwei Biegestellen angeordnet. Durch die mindestens eine Öffnung wird eine verbesserte Verankerung des Verbindungsankers erreicht, insbesondere in textilbewehrten Betonschichten. Weist die Betonschicht keine Textilbewehrung, sondern Bewehrungsstäbe auf, kann die mindestens eine Öffnung zur Aufnahme eines Bewehrungsstabs, der eine Zusatzbewehrung für die Platte bildet, dienen.To improve the anchoring of the connecting anchor in the surrounding concrete, it is advantageously provided that the plate has at least one opening protruding through the plate on the at least one longitudinal side. The at least one opening is advantageously arranged in a finger. Each finger particularly preferably has at least two openings. The two openings of each finger are advantageously arranged offset from one another both in the longitudinal direction and in the height direction of the plate. The at least one opening advantageously protrudes through the area of the end section which has the at least one bending point. The at least one opening is advantageously arranged at least partially between two bending points. The at least one opening achieves improved anchoring of the connecting anchor, in particular in textile-reinforced concrete layers. If the concrete layer does not have textile reinforcement but reinforcing bars, the at least one opening can serve to receive a reinforcing bar that forms additional reinforcement for the plate.
Einen eigenständigen erfinderischen Gedanken bildet die Anordnung von mindestens zwei Aufnahmen an der Platte, die in unterschiedlichen Abständen zur zweiten Längsseite angeordnet sind. In einer der mindestens zwei Aufnahmen ist ein Begrenzungselement zur Begrenzung der Einschubtiefe des Verbindungsankers in die Wärmedämmschicht lösbar gehalten. Das Begrenzungselement kann durch die lösbare Fixierung in der Aufnahme wahlweise in einer der mindestens zwei Aufnahmen angeordnet werden. Durch die Wahl einer Aufnahme wird die Einschubtiefe des Verbindungsankers in die Wärmedämmschicht vorgegeben. Dadurch, dass mehrere Aufnahmen in unterschiedlichem Abstand zur zweiten Längsseite vorgesehen sind, ist die Einschubtiefe des Verbindungsankers in die Wärmedämmschicht einstellbar.The arrangement of at least two receptacles on the plate, which are arranged at different distances from the second longitudinal side, forms an independent inventive concept. In one of the at least two receptacles there is a delimiting element to limit the depth of insertion of the connecting anchor into the Thermal insulation layer held detachable. The delimiting element can optionally be arranged in one of the at least two receptacles due to the releasable fixing in the receptacle. The insertion depth of the connection anchor into the thermal insulation layer is specified by choosing a receptacle. Because several receptacles are provided at different distances from the second longitudinal side, the depth of insertion of the connecting anchor into the thermal insulation layer can be adjusted.
Bei der Herstellung der Betonplatte wird zunächst eine der Betonschichten, bevorzugt eine zweite Betonschicht, die die Vorsatzschale bildet, gegossen. Anschließend wird die Wärmedämmschicht auf diese Betonschicht aufgelegt. Der mindestens eine Verbindungsanker wird durch die Wärmedämmschicht in die noch nicht ausgehärtete Betonschicht gedrückt. Der Verbindungsanker wird in die Wärmedämmschicht gedrückt, bis ein Auflageabschnitt des Begrenzungselements an der Oberseite der Wärmedämmschicht zur Anlage kommt und so ein weiteres Einschieben des Verbindungsankers in die Wärmedämmschicht und die bereits gegossene erste Betonschicht erschwert oder verhindert. Nach Montage aller Verbindungsanker wird die zweite Betonschicht dann auf die Wärmedämmschicht gegossen, und die über die Wärmedämmschicht vorstehenden Abschnitte der Verbindungsanker werden in diese Betonschicht eingegossen. Durch die einstellbare Einschubtiefe kann insbesondere bei dünnen Betonschichten sichergestellt werden, dass der Verbindungsanker nicht bis an die Außenseite der zweiten Betonschicht geschoben werden kann. Dadurch wird sichergestellt, dass der Verbindungsanker von der Außenseite der Betonplatte nicht sichtbar ist.When producing the concrete slab, one of the concrete layers, preferably a second concrete layer, which forms the facing layer, is first poured. The thermal insulation layer is then placed on top of this concrete layer. The at least one connection anchor is pressed through the thermal insulation layer into the not yet hardened concrete layer. The connection anchor is pressed into the thermal insulation layer until a support section of the delimitation element comes to rest on the upper side of the thermal insulation layer and thus makes further insertion of the connection anchor into the thermal insulation layer and the already poured first concrete layer difficult or impossible. After all connecting anchors have been installed, the second concrete layer is then poured onto the thermal insulation layer, and the sections of the connecting anchors protruding beyond the thermal insulation layer are cast into this concrete layer. The adjustable insertion depth can ensure that the connecting anchor cannot be pushed as far as the outside of the second concrete layer, especially with thin concrete layers. This ensures that the connection anchor is not visible from the outside of the concrete slab.
In vorteilhafter Gestaltung ist die mindestens eine Aufnahme in einer Querseite der Platte angeordnet. Bevorzugt ist das Begrenzungselement in die Aufnahme einsteckbar oder einclipsbar. In alternativer Gestaltung ist vorgesehen, dass die mindestens eine Aufnahme zwischen den Querseiten der Platte angeordnet ist. Die zwischen den Querseiten angeordneten Aufnahmen sind vorteilhaft über ihren gesamten Umfang geschlossen ausgebildet. Um eine einfache Montage des Begrenzungselements in der mindestens einen zwischen den Querseiten der Platte angeordneten Aufnahme zu ermöglichen, ist bevorzugt vorgesehen, dass das Begrenzungselement zweiteilig ausgebildet ist. Dadurch können die Abschnitte von gegenüberliegenden Seiten der Aufnahme in der Aufnahme angeordnet und dann miteinander verbunden werden. Es kann vorgesehen sein, dass eine Platte sowohl Aufnahmen an einer Querseite als auch Aufnahmen zwischen den Querseiten der Platte aufweist.In an advantageous embodiment, the at least one receptacle is arranged in a transverse side of the plate. The delimiting element can preferably be inserted or clipped into the receptacle. In an alternative design it is provided that the at least one receptacle is arranged between the transverse sides of the plate. The receptacles arranged between the transverse sides are advantageously designed to be closed over their entire circumference. In order to allow simple assembly of the delimiting element in the at least one receptacle arranged between the transverse sides of the plate allow, it is preferably provided that the delimitation element is designed in two parts. As a result, the sections from opposite sides of the receptacle can be arranged in the receptacle and then connected to one another. It can be provided that a plate has both receptacles on a transverse side and receptacles between the transverse sides of the plate.
In vorteilhafter Gestaltung ist vorgesehen, dass die Aufnahmen spiegelsymmetrisch zu einer mittig zwischen den Längsseiten verlaufenden Mittelebene der Platte angeordnet sind. Dadurch kann das Begrenzungselement sowohl zur Begrenzung der Einschubtiefe in der ersten Betonschicht als auch zur Begrenzung der Einschubtiefe in der zweiten Betonschicht genutzt werden. In besonders bevorzugter Gestaltung ist die Platte spiegelsymmetrisch zur Mittelebene ausgebildet. Dadurch ist die Orientierung der Platte bei der Anordnung in einer Wärmedämmschicht und einer Betonschicht nicht zu berücksichtigen.In an advantageous embodiment, it is provided that the receptacles are arranged mirror-symmetrically to a center plane of the plate running centrally between the longitudinal sides. As a result, the delimitation element can be used both to limit the insertion depth in the first concrete layer and to limit the insertion depth in the second concrete layer. In a particularly preferred embodiment, the plate is designed mirror-symmetrically to the center plane. As a result, the orientation of the plate does not have to be taken into account when it is arranged in a thermal insulation layer and a concrete layer.
Vorteilhaft ist die Gestalt des Verbindungsankers im Hinblick auf eine geringe Wärmeübertragung zwischen den Betonschichten angepasst. Vorteilhaft weicht die Form des zur Anordnung in der Wärmedämmschicht vorgesehenen Abschnitts der Platte von einer Rechteckform ab. Bevorzugt ist vorgesehen, dass eine Längsseite des Verbindungsankers kürzer als die andere Längsseite ist. Die Längsseite mit geringerer Länge ist bevorzugt in der Betonschicht mit geringerer Dicke angeordnet, vorteilhaft in der Vorsatzschale. Dies ist insbesondere die zweite Betonschicht. Vorteilhaft verläuft mindestens eine Querseite in mindestens einem Abschnitt, insbesondere in dem innerhalb der Wärmedämmschicht anzuordnenden Abschnitt, zu einer der Längsseiten in einem Winkel von weniger als 90°. In vorteilhafter Gestaltung kann auch vorgesehen sein, dass der Verbindungsanker in dem Bereich, der zur Anordnung in der Wärmedämmschicht vorgesehen ist, mindestens eine weitere Aussparung aufweist. Die mindestens eine weitere Aussparung verringert die Wärmeübertragung von der ersten zur zweiten Längsseite.The shape of the connecting anchor is advantageously adapted with regard to a low heat transfer between the concrete layers. The shape of the section of the plate provided for arrangement in the thermal insulation layer advantageously deviates from a rectangular shape. It is preferably provided that one longitudinal side of the connecting anchor is shorter than the other longitudinal side. The long side with the smaller length is preferably arranged in the concrete layer with a smaller thickness, advantageously in the facing shell. This is especially the second layer of concrete. At least one transverse side advantageously runs in at least one section, in particular in the section to be arranged within the thermal insulation layer, to one of the longitudinal sides at an angle of less than 90 °. In an advantageous embodiment, it can also be provided that the connecting anchor has at least one further recess in the area which is provided for arrangement in the thermal insulation layer. The at least one further recess reduces the heat transfer from the first to the second longitudinal side.
Für eine mehrschichtige Betonplatte ist gemäß einem eigenständigen erfinderischen Gedanken vorgesehen, dass die Betonplatte eine erste Betonschicht, eine zweite Betonschicht und eine zwischen den Betonschichten angeordnete Wärmedämmschicht sowie mindestens einen Verbindungsanker umfasst. Der Verbindungsanker umfasst eine Platte, die eine erste und eine zweite Längsseite aufweist. Die erste Längsseite ist in der ersten Betonschicht angeordnet und die zweite Längsseite in der zweiten Betonschicht. Die Platte weist eine erste Querseite und eine zweite Querseite auf, die sich von der ersten Betonschicht durch die Wärmedämmschicht in die zweite Betonschicht erstrecken. Angrenzend an mindestens eine Längsseite weist die Platte einen Endabschnitt auf, der in einer der Betonschichten angeordnet ist und in dem die Platte an einer ersten Biegestelle in einer ersten Biegerichtung aus der Plattenebene und an einer zweiten Biegestelle in einer zweiten Biegerichtung, die die Gegenrichtung zur ersten Biegerichtung ist, gebogen ist.For a multi-layer concrete slab it is provided according to an independent inventive concept that the concrete slab comprises a first concrete layer, a second concrete layer and a thermal insulation layer arranged between the concrete layers as well as at least one connecting anchor. The connection anchor comprises a plate which has a first and a second longitudinal side. The first long side is arranged in the first concrete layer and the second long side in the second concrete layer. The plate has a first transverse side and a second transverse side which extend from the first concrete layer through the thermal insulation layer into the second concrete layer. Adjacent to at least one longitudinal side, the slab has an end section which is arranged in one of the concrete layers and in which the slab at a first bending point in a first bending direction out of the plane of the slab and at a second bending point in a second bending direction, which is the opposite direction to the first Bending direction is, is bent.
Durch die mindestens zwei Biegestellen in dem Endabschnitt, der in einer der Betonschichten angeordnet ist, ergibt sich eine verbesserte Verankerung des Endabschnitts in dem Beton.The at least two bending points in the end section, which is arranged in one of the concrete layers, result in an improved anchoring of the end section in the concrete.
Die Betonplatte ist vorteilhaft eine sogenannte Sandwichplatte, bei der die beiden Betonschichten unmittelbar an den beiden gegenüberliegenden Flachseiten der Wärmedämmschicht angeordnet und fest mit dieser verbunden sind.The concrete slab is advantageously a so-called sandwich panel, in which the two concrete layers are arranged directly on the two opposite flat sides of the thermal insulation layer and are firmly connected to it.
Ein eigenständiger erfinderischer Gedanke betrifft die Gestaltung einer Betonplatte mit einer ersten Betonschicht, einer zweiten Betonschicht und einer zwischen den Betonschichten angeordneten Wärmedämmschicht, wobei die Betonplatte mindestens einen Verbindungsanker mit einer Platte aufweist, wobei die Platte mindestens zwei Aufnahmen aufweist, die in unterschiedlichen Abständen zu einer zweiten Längsseite der Platte angeordnet sind, wobei in einer der Aufnahmen ein Begrenzungselement angeordnet ist, das mit einem Auflageabschnitt an der Wärmedämmschicht anliegt.An independent inventive idea relates to the design of a concrete slab with a first concrete layer, a second concrete layer and a thermal insulation layer arranged between the concrete layers, the concrete slab having at least one connection anchor with a plate, the plate having at least two receptacles, which are at different distances from one second longitudinal side of the plate are arranged, wherein a delimiting element is arranged in one of the receptacles, which rests with a support portion on the thermal insulation layer.
Dadurch, dass die Platte mindestens zwei Aufnahmen aufweist, kann die Einschubtiefe des Verbindungsankers in die Wärmedämmschicht und eine der Betonschichten auf einfache Weise eingestellt werden. Durch Anordnung des Begrenzungselements in der vorgesehenen Aufnahme kann eine gewünschte Einschubtiefe sichergestellt werden. Sind mehrere Verbindungsanker für eine Betonplatte vorgesehen, kann sichergestellt werden, dass alle Verbindungsanker um das gleiche Maß in die Betonschicht ragen. Alle Begrenzungselemente des Verbindungsankers sind dabei in Aufnahmen der Platte angeordnet, die den gleichen Abstand zur zweiten Längsseite der Platte aufweisen. Dadurch wird eine gleichmäßige Einschubtiefe der Platte in die Wärmedämmschicht erreicht.Because the plate has at least two receptacles, the insertion depth of the connection anchor into the thermal insulation layer and one of the concrete layers can be adjusted in a simple manner. By arranging the delimiting element in the intended receptacle, a desired insertion depth can be ensured. If several connection anchors are provided for a concrete slab, it can be ensured that all connection anchors protrude into the concrete layer by the same amount. All the limiting elements of the connecting anchor are arranged in receptacles in the plate which are at the same distance from the second longitudinal side of the plate. This achieves a uniform insertion depth of the panel into the thermal insulation layer.
Ein weiterer eigenständiger Gedanke betrifft eine mehrschichtige Betonplatte mit einem Verbindungsanker, der eine Platte umfasst. Die Platte weist an der mindestens einen Längsseite mindestens eine Aussparung auf, die zwei Finger der Platte voneinander trennt. Die Finger ragen in eine der Betonschichten. Ein Boden der Aussparung ist in der Wärmedämmschicht angeordnet. Dadurch, dass der Boden der Aussparung in der Wärmedämmschicht angeordnet ist, ergibt sich ein verringerter Wärmeeintrag in die Betonschicht, in die die Finger ragen. Dadurch wird eine verbesserte Wärmedämmung erreicht. Dadurch, dass der Boden der Aussparung in der Wärmedämmschicht angeordnet ist, ergibt sich in der Wärmedämmschicht ein vergrößerter Querschnitt der Platte, so dass eine ausreichende Festigkeit der Platte erreicht wird und hohe Kräfte zwischen den Betonschichten übertragen werden können.Another independent idea relates to a multi-layer concrete slab with a connecting anchor that comprises a slab. The plate has at least one recess on the at least one longitudinal side which separates two fingers of the plate from one another. The fingers stick out into one of the layers of concrete. A bottom of the recess is arranged in the thermal insulation layer. The fact that the bottom of the recess is arranged in the thermal insulation layer results in a reduced heat input into the concrete layer into which the fingers protrude. This results in improved thermal insulation. The fact that the bottom of the recess is arranged in the thermal insulation layer results in an enlarged cross-section of the plate in the thermal insulation layer, so that sufficient strength of the plate is achieved and high forces can be transmitted between the concrete layers.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand der Zeichnung erläutert. Es zeigen:
- Fig. 1
- eine schematische Schnittdarstellung einer Betonplatte im Bereich eines Verbindungsankers,
- Fig. 2
- eine Seitenansicht einer Platte des Verbindungsankers der Betonplatte aus
Fig. 1 , - Fig. 3
- eine Seitenansicht auf die Platte aus
Fig. 3 in Richtung des Pfeils III inFig. 2 , - Fig. 4
- eine Seitenansicht eines Begrenzungselements,
- Fig. 5
- eine Seitenansicht des Begrenzungselements in Richtung des Pfeils V in
Fig. 4 , - Fig. 6
- eine Draufsicht auf das Begrenzungselement in Richtung des Pfeils VI in
Fig. 4 , - Fig. 7
- eine schematische Schnittdarstellung einer Anordnung aus Wärmedämmschicht, erster Betonschicht und Wärmedämmschicht einer Betonplatte vor der Montage des Verbindungsankers in der Wärmedämmschicht und der ersten Betonschicht,
- Fig. 8
- eine Draufsicht auf den Verbindungsanker, die Wärmedämmschicht und die erste Betonschicht aus
Fig. 7 in Richtung des Pfeils VIII inFig. 7 nach der Montage des Verbindungsankers in der Wärmedämmschicht und der Betonschicht, - Fig. 9
- eine schematische, ausschnittsweise Schnittdarstellung eines Ausführungsbeispiels eines Verbindungsankers in einer Wärmedämmschicht und einer ersten Betonschicht,
- Fig. 10
- eine Seitenansicht eines Ausführungsbeispiels einer Platte eines Verbindungsankers,
- Fig. 11
- eine Darstellung eines zweiteiligen Begrenzungselements in Seitenansicht,
- Fig. 12
- das Begrenzungselement aus
Fig. 11 in einer Seitenansicht in Richtung des Pfeils XII inFig. 11 , - Fig. 13
- eine Draufsicht auf das Begrenzungselement in Richtung des Pfeils XIII in
Fig. 11 , - Fig. 14
- eine schematische Schnittdarstellung eines Ausführungsbeispiels einer Anordnung eines Verbindungsankers, einer Wärmedämmschicht und einer ersten Betonschicht einer Betonplatte vor der Montage des Verbindungsankers in der Wärmedämmschicht und der ersten Betonschicht,
- Fig. 15
- eine Seitenansicht eines Ausführungsbeispiels eines Begrenzungselements,
- Fig. 16
- eine Seitenansicht des Begrenzungselements aus
Fig. 15 in Richtung des Pfeils XVI ausFig. 15 , - Fig. 17
- eine Seitenansicht des Begrenzungselements aus
Fig. 15 in Richtung des Pfeils XVII inFig. 15 , - Fig. 18
- eine Draufsicht auf einen Verbindungsanker mit dem Begrenzungselement
aus den Figuren 15 in einer Wärmedämmschicht,bis 17 - Fig. 19
- eine Seitenansicht des Verbindungsankers aus
Fig. 18 in einer Wärmedämmschicht und einer Betonschicht, - Fig. 20
bis 23 - Ausführungsbeispiele für Betonplatten mit unterschiedlich gestalteten Verbindungsankern,
- Fig. 24
- ein weiteres Ausführungsbeispiel einer Platte eines Verbindungsankers,
- Fig. 24a
- den Bereich der Aufnahmen der Platte aus
Fig. 24 in vergrößerter ausschnittsweiser Darstellung, - Fig. 25
bis 29 - weitere Ausführungsbeispiele von Platten für Verbindungsanker.
- Fig. 1
- a schematic sectional view of a concrete slab in the area of a connecting anchor,
- Fig. 2
- a side view of a plate of the connection anchor of the concrete slab
Fig. 1 , - Fig. 3
- a side view of the plate
Fig. 3 in the direction of arrow III inFig. 2 , - Fig. 4
- a side view of a delimitation element,
- Fig. 5
- a side view of the delimiting element in the direction of arrow V in FIG
Fig. 4 , - Fig. 6
- a plan view of the delimiting element in the direction of arrow VI in FIG
Fig. 4 , - Fig. 7
- a schematic sectional view of an arrangement of thermal insulation layer, first concrete layer and thermal insulation layer of a concrete slab before the connection anchor is installed in the thermal insulation layer and the first concrete layer,
- Fig. 8
- a plan view of the connection anchor, the thermal insulation layer and the first concrete layer
Fig. 7 in the direction of arrow VIII inFig. 7 after the connection anchor has been installed in the thermal insulation layer and the concrete layer, - Fig. 9
- a schematic, partial sectional view of an embodiment of a connection anchor in a thermal insulation layer and a first concrete layer,
- Fig. 10
- a side view of an embodiment of a plate of a connecting anchor,
- Fig. 11
- a representation of a two-part delimiting element in side view,
- Fig. 12
- the delimitation element
Fig. 11 in a side view in the direction of arrow XII inFig. 11 , - Fig. 13
- a plan view of the delimiting element in the direction of arrow XIII in FIG
Fig. 11 , - Fig. 14
- a schematic sectional view of an embodiment of an arrangement of a connection anchor, a thermal insulation layer and a first concrete layer of a concrete slab prior to the assembly of the connection anchor in the thermal insulation layer and the first concrete layer,
- Fig. 15
- a side view of an embodiment of a delimiting element,
- Fig. 16
- a side view of the delimiting element
Fig. 15 in the direction of arrow XVIFig. 15 , - Fig. 17
- a side view of the delimiting element
Fig. 15 in the direction of arrow XVII inFig. 15 , - Fig. 18
- a plan view of a connecting anchor with the limiting element from FIG
Figures 15 to 17 in a thermal insulation layer, - Fig. 19
- a side view of the connecting anchor
Fig. 18 in a thermal insulation layer and a concrete layer, - Figures 20 to 23
- Embodiments for concrete slabs with differently designed connecting anchors,
- Fig. 24
- another embodiment of a plate of a connecting anchor,
- Figure 24a
- the area of the recordings of the plate
Fig. 24 in an enlarged section view, - Figures 25 to 29
- further embodiments of plates for connecting anchors.
Der Verbindungsanker 3 umfasst eine Platte 4. Die Platte 4 weist im Ausführungsbeispiel eine näherungsweise rechteckige Form auf. Auch eine andere Form der Platte 4 kann vorteilhaft sein. Die Platte 4 weist eine erste Längsseite 5 auf, die in der ersten Betonschicht 11 angeordnet ist, sowie eine gegenüberliegende, zweite Längsseite 6, die in der zweiten Betonschicht 12 angeordnet ist. Die beiden Längsseiten 5 und 6 sind über Querseiten 7 und 8 miteinander verbunden. Die Querseiten 7 und 8 erstrecken sich von der ersten Betonschicht 11 durch die Wärmedämmschicht 2 in die zweite Betonschicht 12.The connecting
Die Platte 4 weist eine mittig zwischen den Längsseiten 5 und 6 verlaufende gedachte Mittelebene 31 auf. Im Ausführungsbeispiel ist die Platte 4 spiegelsymmetrisch zur Mittelebene 31 ausgebildet. An ihren Querseiten 7 und 8 weist die Platte 4 mehrere Aufnahmen 14 auf. Im Ausführungsbeispiel sind an jeder Querseite 7 bzw. 8 fünf Aufnahmen 14 vorgesehen. Die Aufnahmen 14 sind näherungsweise U-förmig ausgebildet. Im Ausführungsbeispiel ist in den Aufnahmen 14, die der zweiten Längsseite 6 am nächsten liegen, an jeder Querseite 7 bzw. 8 ein Begrenzungselement 15 angeordnet. Das Begrenzungselement 15, das im Nachfolgenden noch näher beschrieben wird, begrenzt die Einschubtiefe t des Verbindungsankers 3 in den Verbund aus Wärmedämmschicht 2 und zweiter Betonschicht 12 bei der Herstellung der Betonplatte 1. Die Wärmedämmschicht 2 weist eine Dicke ki auf.The
An jeder Längsseite 5 und 6 weist die Platte 4 mehrere Aussparungen 10 auf. Im Ausführungsbeispiel sind an jeder Längsseite 5 und 6 vier Aussparungen 10 vorgesehen. Die Aussparungen 10 sind schlitzförmig ausgebildet und zu der jeweiligen benachbarten Längsseite 5, 6 hin offen. Die Aussparungen 10 weisen einen Boden 30 auf, der vorteilhaft gebogen, im Ausführungsbeispiel teilkreisförmig, gestaltet ist. Wie
Wie
Im Ausführungsbeispiel sind an jeder Querseite 5, 6 fünf Aufnahmen 14 angeordnet. Die Aufnahmen 14 jeder Querseite 5, 6 weisen unterschiedliche Abstände zur zweiten Längsseite 6 auf. Die der Längsseite 6 am nächsten liegende Aufnahme 14 weist einen Abstand ai zur Längsseite 6 auf. Die darauffolgende Aufnahme 14 ist in einem Abstand a2 zur Längsseite 6 angeordnet, der etwas mehr als die Breite einer Aufnahme 14 größer als der Abstand ai ist. Die weiteren Aufnahmen 14 sind mit Abständen a3, a4 und as zur Längsseite 6 angeordnet. Im Ausführungsbeispiel sind die Abstände ai bis as so gewählt, dass sich konstante Abstände zwischen benachbarten Aufnahmen 14 ergeben. Auch unterschiedliche Abstände zwischen benachbarten Aufnahmen 14 können jedoch vorteilhaft sein. Die Abstände ai bis as entsprechen den Einschubtiefen t (
Die
Die
In den
Alle Begrenzungselemente 15 sind bevorzugt als Kunststoffspritzgussteile hergestellt.All
Die Platte 4 nach
Im Ausführungsbeispiel nach
Das Ausführungsbeispiel nach
Beim Ausführungsbeispiel nach
Das Ausführungsbeispiel nach
Die
Die Gestaltung der Aufnahmen 14 ist in
Die in
Die
Auch die in den
Weitere vorteilhafte Ausführungsbeispiele ergeben sich durch beliebige Kombination der Merkmale der dargestellten Ausführungsbeispiele miteinander.Further advantageous exemplary embodiments result from any combination of the features of the exemplary embodiments shown with one another.
Claims (15)
dadurch gekennzeichnet, dass die Platte (4) angrenzend an mindestens eine Längsseite (5, 6) einen Endabschnitt (19, 20) aufweist, in dem die Platte (4) an einer ersten Biegestelle (21) in einer ersten Biegerichtung (25) aus der Plattenebene (27) der Platte (4) und an einer zweiten Biegestelle (22) in einer zweiten Biegerichtung (26), die in Gegenrichtung zur ersten Biegerichtung (20) verläuft, gebogen ist.Connection anchor for multi-layer concrete slabs, the connection anchor (3) comprising a plate (4) which has a first longitudinal side (5) for arrangement in a first concrete layer (11) and a second longitudinal side (6) for arrangement in a second concrete layer (12) as well as a first transverse side (7) and a second transverse side (8) which each connect the first longitudinal side (5) to the second longitudinal side (6),
characterized in that the plate (4) has, adjacent to at least one longitudinal side (5, 6), an end section (19, 20) in which the plate (4) extends at a first bending point (21) in a first bending direction (25) the plate plane (27) of the plate (4) and at a second bending point (22) in a second bending direction (26) which runs in the opposite direction to the first bending direction (20).
dadurch gekennzeichnet, dass die Platte (4) in dem mindestens einen Endabschnitt (19, 20) ein wellenförmiges Profil aufweist, das durch mehrere Biegestellen (21, 22, 23, 24) gebildet ist.Connection anchor according to claim 1,
characterized in that the plate (4) in the at least one end section (19, 20) has a wave-shaped profile which is formed by several bending points (21, 22, 23, 24).
dadurch gekennzeichnet, dass die Platte (4) an der mindestens einen Längsseite (5, 6) mindestens eine Aussparung (10) aufweist.Connection anchor according to claim 1 or 2,
characterized in that the plate (4) has at least one recess (10) on the at least one longitudinal side (5, 6).
dadurch gekennzeichnet, dass der Boden (30) der Aussparung (10) gerundet ausgebildet ist.Connection anchor according to claim 3,
characterized in that the bottom (30) of the recess (10) is rounded.
dadurch gekennzeichnet, dass die mindestens eine Aussparung (10) Finger (13) der Platte (4) voneinander trennt.Connection anchor according to claim 3 or 4,
characterized in that the at least one recess (10) separates fingers (13) of the plate (4) from one another.
dadurch gekennzeichnet, dass die Platte (4) an der mindestens einen Längsseite (5, 6) mindestens eine die Platte (4) durchragende Öffnung (9) aufweist, wobei die Öffnung (9) vorteilhaft in einem Finger (13) angeordnet ist.Connection anchor according to one of Claims 1 to 5,
characterized in that the plate (4) has at least one opening (9) protruding through the plate (4) on the at least one longitudinal side (5, 6), the opening (9) advantageously being arranged in a finger (13).
dadurch gekennzeichnet, dass die Platte (4) mindestens zwei Aufnahmen (14, 34) aufweist, die in unterschiedlichen Abständen (a) zur zweiten Längsseite (6) angeordnet sind und dass in einer der mindestens zwei Aufnahmen (14, 34) ein Begrenzungselement (15) zur Begrenzung der Einschubtiefe (t) des Verbindungsankers (3) in die Wärmedämmschicht (2) lösbar gehalten ist.Connection anchor according to one of claims 1 to 6 or according to the preamble of claim 1,
characterized in that the plate (4) has at least two receptacles (14, 34) which are arranged at different distances (a) from the second longitudinal side (6) and that in one of the at least two receptacles (14, 34) a delimiting element ( 15) to limit the insertion depth (t) of the connecting anchor (3) is held detachably in the thermal insulation layer (2).
dadurch gekennzeichnet, dass die mindestens eine Aufnahme (14) an einer Querseite (7, 8) der Platte (4) angeordnet ist, wobei das Begrenzungselement (15) insbesondere in die Aufnahme (14) einsteckbar oder einclipsbar ist.Connection anchor according to claim 7,
characterized in that the at least one receptacle (14) is arranged on a transverse side (7, 8) of the plate (4), wherein the delimiting element (15) can be inserted or clipped into the receptacle (14) in particular.
dadurch gekennzeichnet, dass die mindestens eine Aufnahme (34) zwischen den Querseiten (7, 8) der Platte (4) angeordnet ist, wobei das Begrenzungselement (15) insbesondere zweiteilig ausgebildet ist.Connection anchor according to claim 7,
characterized in that the at least one receptacle (34) is arranged between the transverse sides (7, 8) of the plate (4), the delimiting element (15) in particular being designed in two parts.
dadurch gekennzeichnet, dass die Aufnahmen (14, 34) spiegelsymmetrisch zu einer mittig zwischen den Längsseiten (5, 6) verlaufenden Mittelebene (31) der Platte (4) angeordnet sind.Connection anchor according to one of Claims 7 to 9,
characterized in that the receptacles (14, 34) are arranged mirror-symmetrically to a center plane (31) of the plate (4) running centrally between the longitudinal sides (5, 6).
dadurch gekennzeichnet, dass eine Längsseite (6) kürzer als die andere Längsseite (5) ist.Connection anchor according to one of Claims 1 to 10,
characterized in that one longitudinal side (6) is shorter than the other longitudinal side (5).
dadurch gekennzeichnet, dass mindestens eine Querseite (7, 8) in mindestens einem Abschnitt zu einer der Längsseiten (5, 6) in einem Winkel (α) von weniger als 90° verläuft.Connection anchor according to one of Claims 1 to 11,
characterized in that at least one transverse side (7, 8) extends in at least one section to one of the longitudinal sides (5, 6) at an angle (α) of less than 90 °.
dadurch gekennzeichnet, dass die Platte (4) angrenzend an mindestens eine Längsseite (5, 6) einen Endabschnitt (19, 20) aufweist, der in einer der Betonschichten (11, 12) angeordnet ist und in dem die Platte (4) an einer ersten Biegestelle (21) in einer ersten Biegerichtung (25) aus der Plattenebene (27) und an einer zweiten Biegestelle (22) in einer zweiten Biegerichtung (26), die die Gegenrichtung zur ersten Biegerichtung (25) ist, gebogen ist.Multi-layer concrete slab comprising a first concrete layer (11), a second concrete layer (12) and a thermal insulation layer (2) arranged between the concrete layers (11, 12) and at least one connection anchor (1), the connection anchor (1) being a plate (4) comprises, which has a first longitudinal side (5) and a second longitudinal side (6), wherein the first longitudinal side (5) is arranged in the first concrete layer (11) and the second longitudinal side (6) in the second concrete layer (12), wherein the plate (4) has a first transverse side (7) and a second transverse side (8) which extend from the first concrete layer (11) through the thermal insulation layer (2) into the second concrete layer (12),
characterized in that the plate (4) has, adjacent to at least one longitudinal side (5, 6), an end section (19, 20) which is arranged in one of the concrete layers (11, 12) and in which the plate (4) is attached to a first bending point (21) in a first bending direction (25) from the plate plane (27) and at a second bending point (22) in a second bending direction (26) which is the opposite direction to the first bending direction (25).
dadurch gekennzeichnet, dass die Platte (4) mindestens zwei Aufnahmen (14, 34) aufweist, die in unterschiedlichen Abständen (a) zur zweiten Längsseite (6) angeordnet sind, wobei in einer der Aufnahmen (14, 34) ein Begrenzungselement (15) angeordnet ist, das mit einem Auflageabschnitt (16) an der Wärmedämmschicht (2) anliegt.Multi-layer concrete slab comprising a first concrete layer (11), a second concrete layer (12), a thermal insulation layer (2) arranged between the concrete layers (11, 12) and at least one connecting anchor (3), the connecting anchor (3) being a plate (4) comprises, which has a first longitudinal side (5) and a second longitudinal side (6), wherein the first longitudinal side (5) is arranged in the first concrete layer (11) and the second longitudinal side (6) in the second concrete layer (12), wherein the plate (4) has a first transverse side (7) and a second transverse side (8) which extend from the first concrete layer (11) through the thermal insulation layer (4) into the second concrete layer (12),
characterized in that the plate (4) has at least two receptacles (14, 34) which are arranged at different distances (a) from the second longitudinal side (6), with a delimiting element (15) in one of the receptacles (14, 34) is arranged, which rests with a support section (16) on the thermal insulation layer (2).
dadurch gekennzeichnet, dass die Platte (4) an der mindestens einen Längsseite (5, 6) mindestens eine Aussparung (10) aufweist, die zwei Finger (13) der Platte (4) voneinander trennt, wobei die Finger (13) in eine der Betonschichten (11, 12) ragen und wobei ein Boden (30) der Aussparung (10) in der Wärmdämmschicht (2) angeordnet ist.Multi-layer concrete slab comprising a first concrete layer (11), a second concrete layer (12), a thermal insulation layer (2) arranged between the concrete layers (11, 12) and at least one connecting anchor (3), the connecting anchor (3) being a plate (4) comprises, which has a first longitudinal side (5) and a second longitudinal side (6), wherein the first longitudinal side (5) is arranged in the first concrete layer (11) and the second longitudinal side (6) in the second concrete layer (12), wherein the plate (4) has a first transverse side (7) and a second transverse side (8) which extend from the first concrete layer (11) through the thermal insulation layer (4) into the second concrete layer (12),
characterized in that the plate (4) on the at least one longitudinal side (5, 6) has at least one recess (10) which separates two fingers (13) of the plate (4) from one another, the fingers (13) in one of the Concrete layers (11, 12) protrude and wherein a bottom (30) of the recess (10) is arranged in the thermal insulation layer (2).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FIEP19214728.8T FI3835506T3 (en) | 2019-12-10 | 2019-12-10 | Connecting anchor for multilayer concrete slabs and multilayer concrete slab |
EP19214728.8A EP3835506B1 (en) | 2019-12-10 | 2019-12-10 | Connecting anchor for multilayer concrete slabs and multilayer concrete slab |
PL19214728.8T PL3835506T3 (en) | 2019-12-10 | 2019-12-10 | Connecting anchor for multilayer concrete slabs and multilayer concrete slab |
CN202011435971.0A CN112942667A (en) | 2019-12-10 | 2020-12-10 | Connecting anchor for multi-layer concrete slab and multi-layer concrete slab |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19214728.8A EP3835506B1 (en) | 2019-12-10 | 2019-12-10 | Connecting anchor for multilayer concrete slabs and multilayer concrete slab |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3835506A1 true EP3835506A1 (en) | 2021-06-16 |
EP3835506B1 EP3835506B1 (en) | 2023-06-07 |
Family
ID=68847992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19214728.8A Active EP3835506B1 (en) | 2019-12-10 | 2019-12-10 | Connecting anchor for multilayer concrete slabs and multilayer concrete slab |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3835506B1 (en) |
CN (1) | CN112942667A (en) |
FI (1) | FI3835506T3 (en) |
PL (1) | PL3835506T3 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US3996713A (en) | 1975-04-02 | 1976-12-14 | Ernst Haeussler | Prefabricated multi-layer steel-reinforced concrete panels |
BE898653A (en) * | 1984-01-11 | 1984-05-02 | Cbr Cementbedrijven Nv | Tie connecting concrete panels with insulation between - has hooked ends, one shaped to permit pressing through insulation at manufacture |
US4624089A (en) | 1983-07-14 | 1986-11-25 | Siegfried Fricker | Tie anchor for reinforced sandwich panels |
EP0381000A1 (en) * | 1989-01-30 | 1990-08-08 | Sergio Zambelli | Prefabricated concrete panel with thermally insulating or lightening layer |
DE19848228A1 (en) * | 1998-10-20 | 2000-04-27 | Loesch Gmbh Betonwerke | Plate type building element has shells joined and spaced apart by connections which have connecting support elements |
FR2978467A1 (en) * | 2011-07-28 | 2013-02-01 | Rech Et D Industrialisation Du Batiment Soc D | Wall panel, has plate between inner and outer concrete skins, where connecting area between inner concrete skin and inner anchor end of plate is weaker than connecting area between outer anchor end of plate and outer concrete skin |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2008402A1 (en) * | 1970-02-24 | 1971-11-18 | Haeussler, Ernst, Dr.-Ing., 4300 Essen | Chemical anchor |
DE2150120A1 (en) * | 1971-10-07 | 1973-04-26 | Thor Waerner & Co Gmbh | PROFILE TAPE |
DE20117798U1 (en) * | 2001-10-31 | 2002-02-14 | Frisch, Hans, 89343 Jettingen-Scheppach | Xings |
DE202006012881U1 (en) * | 2006-08-22 | 2006-12-21 | Frisch, Hans | Anchor joining outer- and inner concrete panels sandwitching insulation, comprises plate with hooked edges and slots, fitted over reinforcing steel grid intersections |
IT1391657B1 (en) * | 2008-11-07 | 2012-01-17 | Carlo Calisse | CONNECTION SYSTEM FOR PREFABRICATED PANELS WITH THERMAL CUT |
DE202012010850U1 (en) * | 2012-11-13 | 2013-07-15 | Gotthard Fixle | Composite anchor for forming a concrete slab unit and concrete slab unit equipped with this composite anchor |
US9303404B2 (en) * | 2014-07-09 | 2016-04-05 | Lehigh University | Insulated structural panel connector |
CN106284762B (en) * | 2016-10-14 | 2018-08-14 | 成都建筑工程集团总公司 | A kind of construction method of the PCF plates with heat preservation connection sheet |
CN109594680A (en) * | 2018-12-13 | 2019-04-09 | 江苏南通三建集团股份有限公司 | A kind of passive type building prefabrication concrete structure heat-insulation wall plate tension member installation method |
-
2019
- 2019-12-10 FI FIEP19214728.8T patent/FI3835506T3/en active
- 2019-12-10 PL PL19214728.8T patent/PL3835506T3/en unknown
- 2019-12-10 EP EP19214728.8A patent/EP3835506B1/en active Active
-
2020
- 2020-12-10 CN CN202011435971.0A patent/CN112942667A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3996713A (en) | 1975-04-02 | 1976-12-14 | Ernst Haeussler | Prefabricated multi-layer steel-reinforced concrete panels |
US4624089A (en) | 1983-07-14 | 1986-11-25 | Siegfried Fricker | Tie anchor for reinforced sandwich panels |
BE898653A (en) * | 1984-01-11 | 1984-05-02 | Cbr Cementbedrijven Nv | Tie connecting concrete panels with insulation between - has hooked ends, one shaped to permit pressing through insulation at manufacture |
EP0381000A1 (en) * | 1989-01-30 | 1990-08-08 | Sergio Zambelli | Prefabricated concrete panel with thermally insulating or lightening layer |
DE19848228A1 (en) * | 1998-10-20 | 2000-04-27 | Loesch Gmbh Betonwerke | Plate type building element has shells joined and spaced apart by connections which have connecting support elements |
FR2978467A1 (en) * | 2011-07-28 | 2013-02-01 | Rech Et D Industrialisation Du Batiment Soc D | Wall panel, has plate between inner and outer concrete skins, where connecting area between inner concrete skin and inner anchor end of plate is weaker than connecting area between outer anchor end of plate and outer concrete skin |
Also Published As
Publication number | Publication date |
---|---|
CN112942667A (en) | 2021-06-11 |
FI3835506T3 (en) | 2023-08-23 |
PL3835506T3 (en) | 2023-08-14 |
EP3835506B1 (en) | 2023-06-07 |
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