DEVICE FOR JOINING TWO COMPONENTS SEPARATED BY A JOINT

Description

Technical field

[0001] The invention relates to a device for connecting two components separated by a joint, in particular concrete components, which is suitable for absorbing shear forces. The device comprises a mandrel part including a mandrel with a first section that can be inserted into the second component, and a sleeve part with a sleeve that can be inserted into the first component. The sleeve has an insertion opening and an adjoining receiving area and is designed such that a second section of the mandrel can be received in the receiving area of ​​the sleeve. A further aspect relates to a method for manufacturing a corresponding mandrel part and / or sleeve part, as well as the use of the device for absorbing shear forces in two components separated by a joint, in particular concrete components.Furthermore, the invention relates to an arrangement comprising two components separated by a joint, in particular concrete components, which are connected via a corresponding device. State of the art

[0002] In civil engineering and structural engineering, it is common practice to connect concrete components. This requires the inclusion of joints between the components to be joined. These joints compensate for expansion and contraction of the components due to temperature fluctuations, as well as shrinkage and creep. The components should be connected in such a way that the shear forces between them can be transferred. Mandrel-sleeve connections, which are known in many forms, are particularly suitable for this purpose. These mandrel-sleeve connections allow for optimal transfer of the shear forces occurring between the components. The mandrel is held within the corresponding sleeve so that it can slide longitudinally, thus compensating for the expansion and contraction of the components.

[0003] In such connections between components, particularly high loads act on the mandrel-sleeve connection at the joint edge. The concrete surrounding the mandrel and sleeve in these areas is subjected to especially high stress. To prevent the concrete from cracking at the joint edge in these areas, which exhibit the highest peak loads, the mandrel and sleeve are each equipped with reinforcing elements in this region. These reinforcing elements, preferably made of steel, are designed to distribute the forces transmitted to the component over a larger area within the connected components. This improves the concrete's resistance to failure in these areas.

[0004] In this context, for example, patent EP 3 339 525 A1 (FJ Aschwanden AG) describes a device in which the mandrel and the sleeve are provided with reinforcing elements, each having a first plate facing the joint, to which stirrup elements are attached on opposite sides. The respective first plate and the areas of the reinforcing elements adjacent to the first plate are also embedded in a plate-shaped element formed from a high-strength, mortar-like mass that completely encloses the respective first plate. Although such devices can transmit transverse forces to the components, they are relatively complex in design, expensive to manufacture, and correspondingly costly. Document EP 0 773 324 A1 (FJ ASCHWANDEN AG [CH]) discloses a device for joining two components separated by a joint, comprising all the features of the preamble of claim 1.

[0005] Other mandrel-sleeve connections used in practice, which are easier to manufacture, are not entirely convincing with regard to force transmission and / or the avoidance of load peaks.

[0006] Therefore, there is still a need for improved solutions that at least partially overcome the disadvantages of known mandrel-sleeve connections. Description of the invention

[0007] The object of the present invention is therefore to propose improved solutions for connecting two components separated by a joint, in particular concrete components, and for absorbing shear forces between the components. In particular, solutions are to be provided that can absorb the loads occurring at the joint edge of the two components in the best possible way and transfer them into the components. Furthermore, the solutions should be as simple and cost-effective to manufacture as possible.

[0008] The solution to this problem is defined by the characteristics of independent claims.

[0009] According to a first aspect, the invention relates to a device for connecting two components separated by a joint, in particular concrete components, which is suitable for absorbing shear forces, comprising a mandrel part comprising a mandrel with a first area which can be inserted into the second component, and a sleeve part with a sleeve which can be inserted into the first component, wherein the sleeve has an insertion opening and a receiving area adjoining it and is designed such that a second area of ​​the mandrel can be received in the receiving area of ​​the sleeve; wherein a mandrel-side reinforcing element is arranged on the mandrel, which has a mandrel-side front plate to be aligned with the joint, on which a mandrel-side leg is present at at least one edge, wherein the mandrel-side leg projects away from the mandrel-side front plate in a direction from the second region of the mandrel to the first region of the mandrel; and wherein the mandrel-side front plate has an opening through which the mandrel is passed; and wherein a sleeve-side reinforcing element is arranged on the sleeve, which has a sleeve-side front plate to be aligned with the joint, on which a sleeve-side leg is present at at least one edge, wherein the sleeve-side leg projects away from an insertion opening to the receiving area; and wherein the sleeve-side front plate has an opening through which a region of the insertion opening of the sleeve is passed;wherein at least in sections on the mandrel-side leg there is an edge section bent along a bending line running parallel to a mandrel longitudinal axis and / or on the sleeve-side leg there is an edge section bent along a bending line running parallel to a sleeve longitudinal axis.

[0010] In the present context, the "transverse direction" is to be understood as a direction perpendicular to the longitudinal axis of the mandrel and / or the longitudinal axis of the sleeve.

[0011] The components consist in particular of a mineral binder composition, especially a mortar and / or concrete composition. The device according to the invention for joining two components separated by a joint is cast into the mineral binder composition during the manufacture of the components.

[0012] A mineral binder composition comprises at least one mineral binder and optionally aggregates and / or one or more mortar and / or concrete admixtures.

[0013] The term "mineral binder" refers in particular to a binder that reacts in the presence of water in a hydration reaction to form solid hydrates or hydrate phases. This can be, for example, a hydraulic binder (e.g., cement or hydraulic lime), a latent hydraulic binder (e.g., slag), a pozzolanic binder (e.g., fly ash), or a non-hydraulic binder (gypsum or quicklime). In particular, the mineral binder or binder composition contains a hydraulic binder, preferably cement. A cement with a cement clinker content of ≥ 35 wt.% is particularly preferred. In particular, the cement is of type CEM I, II, IV, or V (according to standard EN 197-1).

[0014] In a further preferred embodiment, the mineral binder composition additionally contains solid aggregates, in particular gravel, sand, and / or aggregates. Such binder compositions can be used, for example, as mortar or concrete mixes. In particular, the binder composition additionally contains water, wherein the weight ratio of water to mineral binder is preferably in the range of 0.25 to 0.8, more specifically 0.3 to 0.6, and more preferably 0.35 to 0.5. Such binder compositions can be processed directly as mortar or concrete mixes.

[0015] It can also be advantageous if the mineral binder composition further contains at least one additive, in particular a concrete additive and / or a mortar additive. The at least one additive includes, in particular, a defoamer, a colorant, a preservative, a plasticizer, a superplasticizer, a retarder, an air-entraining agent, a shrinkage reducer and / or a corrosion inhibitor, or combinations thereof.

[0016] It has been shown that the bent edge section on the mandrel-side leg and the bent edge section on the sleeve-side leg significantly improve the mandrel-side and sleeve-side reinforcement elements, respectively. On the one hand, the mechanical stability of the legs, and thus of the reinforcement elements as a whole, is increased. This ensures high dimensional stability of the mandrel and sleeve sections, even under high shear forces. On the other hand, the bent edge section also improves the embedding of the reinforcement elements in the concrete components, as it creates an additional interlock between the bent edge section and the surrounding binder.

[0017] Overall, the structure according to the invention achieves a more optimal force transmission and localized load peaks can be reduced or avoided, so that breakout at the joint edge can be avoided even under high transverse loads.

[0018] Furthermore, the inventive structure of the reinforcement elements, comprising a front plate, leg, and bent edge section, can be manufactured, for example, from a single piece of sheet metal purely by bending. This simplifies manufacturing and significantly reduces costs without compromising force transmission or the avoidance of peak loads.

[0019] Specifically, in an area bounded by the mandrel-side front plate and at least one mandrel-side leg, a cavity exists before insertion into the second component, which is accessible from the outside so that it can be filled with a binding agent, e.g., concrete; and / or in an area bounded by the sleeve-side front plate and at least one sleeve-side leg, a cavity exists before insertion into the first component, which is accessible from the outside so that it can be filled with a binding agent. In other words, in this case, the mineral binding agent penetrates the reinforcing element in its installed state.

[0020] According to a preferred embodiment, on the mandrel-side leg, at least partially on a side of the leg opposite the bent edge section, there is a further bent edge section along a further bending line running parallel to the mandrel longitudinal axis, and / or on the sleeve-side leg, at least partially on a side of the sleeve-side leg opposite the bent edge section, there is a further bent edge section along a further bending line running parallel to the sleeve longitudinal axis.

[0021] In other words, at least partially bent edge sections are present on opposite sides of the leg on the mandrel-side leg and / or on the sleeve-side leg.

[0022] Preferably, the mandrel-side front plate has a further mandrel-side leg on a further edge opposite at least one edge, which projects away from the mandrel-side front plate in a direction from the second area of ​​the mandrel to the first area of ​​the mandrel; and / or the sleeve-side front plate has a further sleeve-side leg on a further edge opposite at least one edge, which projects away from the insertion opening to the receiving area in a direction.

[0023] In this case, the mandrel-side and / or sleeve-side reinforcement element on the respective front plate has two opposing legs.

[0024] On the further mandrel-side leg, preferably at least in sections there is an edge section bent along a bending line running parallel to a mandrel longitudinal axis and / or on the sleeve-side leg there is an edge section bent along a bending line running parallel to a sleeve longitudinal axis.

[0025] This means that on both mandrel-side legs and / or on both sleeve-side legs, at least one bent edge section is present in each case.

[0026] Preferably, on the further mandrel-side leg, at least a further bent edge section is present on a side of the further mandrel-side leg opposite the bent edge section, along a further bending line running parallel to the mandrel longitudinal axis; and / or on the further sleeve-side leg, at least a further bent edge section is present on a side of the further sleeve-side leg opposite the bent edge section, along a further bending line running parallel to the sleeve longitudinal axis.

[0027] In other words, in this embodiment, at least in sections, a bent edge section is present on opposite sides of the additional mandrel-side leg and / or additional sleeve-side leg.

[0028] The aforementioned additional legs and / or additional edge sections further enhance the aforementioned advantages.

[0029] According to another preferred embodiment, the two mandrel-side legs are essentially identical in construction and / or the two sleeve-side legs are essentially identical in construction.

[0030] Preferably, the two mandrel-side legs and / or the two sleeve-side legs are aligned parallel to each other.

[0031] In particular, the two sleeve-side legs and the sleeve-side front plate form a U-shape and / or the two mandrel-side legs and the mandrel-side front plate form a U-shape.

[0032] The at least one sleeve-side leg, in particular both sleeve-side legs, are preferably perpendicular to the sleeve-side front plate and / or the at least one mandrel-side leg, in particular both mandrel-side legs, are preferably perpendicular to the mandrel-side front plate.

[0033] The mandrel-side front plate and / or the sleeve-side front plate are preferably rectangular and flat.

[0034] Preferably, at least one leg on the sleeve side, and in particular both legs on the sleeve side, has a rectangular central area, and / or at least one leg on the mandrel side, and in particular both legs on the mandrel side, have a rectangular central area. The central area(s) are, in particular, flat areas.

[0035] Preferably, the bent edge section(s) are each designed as planar areas, in particular rectangular areas, which project from the central area at an oblique angle, in particular at an angle of 5 - 90°, specifically 25 - 65°.

[0036] In particular, the flat area(s) are each flat.

[0037] The area of ​​a planar region corresponds in particular to 2-40%, and in particular 5-25%, of the area of ​​the central region.

[0038] The planar area of ​​the at least one bent edge section on the at least one mandrel-side leg preferably lies in a geometric plane that intersects the mandrel-side front plate; and / or the planar area of ​​the at least one bent edge section on the at least one sleeve-side leg preferably lies in a geometric plane that intersects the sleeve-side front plate.

[0039] This means that the bent edge section(s) protrude obliquely from the longitudinal axis of the mandrel or sleeve. This results in particularly pronounced stabilization of the reinforcing elements.

[0040] In another embodiment, the planar area of ​​the at least one bent edge section on the at least one mandrel-side leg can also lie in a geometric plane that does not intersect the mandrel-side front plate; and / or the planar area of ​​the at least one bent edge section on the at least one sleeve-side leg lies in a geometric plane that does not intersect the sleeve-side front plate.

[0041] Mixed arrangements of the planar areas are also possible.

[0042] Furthermore, it is preferred if all mandrel-side flat areas of the bent edge sections lie in geometric planes that intersect the mandrel-side front plate; and / or if all sleeve-side flat areas of the bent edge sections lie in geometric planes that intersect the sleeve-side front plate.

[0043] The bent edge section or sections preferably extend over at least 50%, in particular at least 75%, specifically at least 90%, in particular 100%, of the length of the associated leg in the direction of the mandrel longitudinal axis or the sleeve longitudinal axis.

[0044] The longer the bent edge sections are, the better the advantages of the invention come into play.

[0045] According to a further preferred embodiment, a back plate is arranged on at least one sleeve-side leg in an area facing away from the sleeve-side front plate, in particular on a rear edge of the sleeve-side leg, which projects away from the sleeve-side leg in a direction perpendicular to the longitudinal axis of the sleeve, wherein preferably the sleeve is guided through an opening in the sleeve-side back plate and / or on at least one mandrel-side leg, a mandrel-side back plate is arranged in an area facing away from the mandrel-side front plate, in particular on a rear edge of the mandrel-side leg, which projects away from the mandrel-side leg in a direction perpendicular to the longitudinal axis of the mandrel, wherein preferably the first region of the mandrel is guided through an opening in the mandrel-side back plate.

[0046] This allows the sleeve and / or mandrel to be additionally anchored in the respective reinforcing element, particularly by means of a positive fit. This further improves the effectiveness of the reinforcing elements and, in particular, ensures an even more stable construction of the device for joining two components separated by a joint.

[0047] Particularly preferred are the two sleeve-side legs connected in an area away from the sleeve-side front plate by a connecting element, in particular the sleeve-side back plate, and / or the two mandrel-side legs connected in an area away from the mandrel-side front plate by a mandrel-side connecting element, in particular the mandrel-side back plate.

[0048] In addition to or instead of the back plate(s), other connecting elements may be provided, such as profile-shaped connecting elements and / or connecting axes.

[0049] Particularly preferred is the sleeve-side back plate positively connected to the at least one sleeve-side leg, in particular to both sleeve-side legs; and / or the mandrel-side back plate positively connected to the at least one mandrel-side leg, in particular to both mandrel-side legs.

[0050] Such an embodiment makes it possible, for example, to attach the back plate(s) to the legs and, if necessary, to fix them afterwards, e.g. by a ratchet connection and / or a fabric-bonded stapling.

[0051] For example, on at least one mandrel-side leg, in particular on both mandrel-side legs, there are one, in particular two or more, projections extending from the legs in a direction away from the mandrel-side front plate, which engage in corresponding recesses in the mandrel-side back plate and / or project through it; and / or on at least one sleeve-side leg, in particular on both sleeve-side legs, there are one, in particular two or more, projections extending from the legs in a direction away from the sleeve-side front plate, which engage in corresponding recesses in the sleeve-side back plate and / or project through it.

[0052] This represents a particularly preferred connection between the legs and the back plate(s).

[0053] In a further preferred embodiment, the sleeve-side back plate, the mandrel-side back plate and / or the connecting element are additionally connected to the respective leg(s) by a material connection, in particular by welding, in addition to the positive locking connection.

[0054] Furthermore, it is preferred if the mandrel is additionally bonded to the mandrel-side front plate and / or the mandrel-side back plate by means of a material bond, in particular by welding; and / or if the sleeve is additionally bonded to the sleeve-side front plate and / or sleeve-side back plate by means of a material bond, in particular by welding.

[0055] The additional material-bonded connections further stabilize the form-fit connections. This is particularly advantageous when installing the device for joining two components separated by a joint, as it reduces the risk of individual components, such as the mandrel, sleeve, and / or back plates, being displaced relative to the other components of the device according to the invention due to the pressures exerted during casting. However, such material-bonded connections are not strictly necessary.

[0056] In a further advantageous embodiment, the sleeve-side back plate, the mandrel-side back plate and / or the connecting element has one or more openings through which the mandrel and / or the sleeve can be connected to third-party elements, in particular reinforcements and / or formwork, by means of force-fit and / or form-fit.

[0057] This allows the inventive device for joining two components separated by a joint to be fixed in a defined position in a simple yet secure manner before casting. This prevents the inventive device from moving during the subsequent casting process and from being cast in an incorrect position or orientation.

[0058] Wires, screws, nails and / or staples can be used as fasteners. Wires are particularly suitable.

[0059] According to a further advantageous embodiment, one or more flanges are provided on the mandrel-side front plate, which project from an edge of the mandrel-side front plate, which does not have a leg, in a direction from the second region of the mandrel to the first region of the mandrel; and / or one or more flanges are provided on the sleeve-side front plate, which project from an edge of the sleeve-side front plate, which does not have a leg, in a direction from an insertion opening to the receiving area.

[0060] In particular, the flanges are rectangular and specifically flat.

[0061] Such flanges can provide additional stabilization, particularly to the front panels, and the device according to the invention can be cast over a larger area in the region of the end faces of the components. This further stabilizes the connection.

[0062] Particularly preferred are the mandrel-side front plate and the at least one mandrel-side leg, in particular both mandrel-side legs, with the at least one bent edge section, in particular with both bent edge sections, and optionally the flange(s), obtained or obtained from a one-piece plate-shaped element by bending; and / or the sleeve-side front plate and the at least one sleeve-side leg, in particular both sleeve-side legs, with the at least one bent edge section, in particular with both bent edge sections, and optionally the flange(s), obtained or obtained from a one-piece plate-shaped element by bending.

[0063] Such devices can be manufactured particularly efficiently and yet exhibit extremely high stability.

[0064] In particular, in the device according to the invention, there is no welded connection, no positive locking connection and / or no force-locking connection between the mandrel-side front plate and the at least one mandrel-side leg, in particular the two mandrel-side legs; and / or there is no welded connection, no positive locking connection and / or no force-locking connection between the sleeve-side front plate and the at least one sleeve-side leg, in particular the two sleeve-side legs.

[0065] Another aspect of the present invention relates to a method for manufacturing a mandrel part and / or a sleeve part as described above, comprising the steps: a) Providing a plate-shaped element, in particular made of metal, preferably steel, which has the form of a flat development comprising at least the front plate area, a leg area with a central area and an edge section to be bent over the mandrel-side reinforcement element and / or the sleeve-side reinforcement element; b) Bending over the plate-shaped element between the front plate area and a leg area; c) Bending over the plate-shaped element between the central area and an edge section to be bent over; d) Inserting a mandrel into an opening in the front plate area and / or inserting a sleeve into an opening in the front plate area and optionally fixing the mandrel and / or the sleeve in the respective opening by means of a material bond; e) Optionally, attaching the back plate, in particular by force-fit and / or form-fit connection.

[0066] In particular, the plate-shaped element used in step a) has the form of a planar development comprising two leg areas, and in step b) bending takes place between the front panel area and both leg areas.

[0067] In particular, the plate-shaped element used in step a) has the form of a planar development encompassing opposite sides on each leg area.

[0068] Each side of the central area has an edge section to be bent, and in step b) bends are made between the central area and both edge section areas to be bent.

[0069] The bending lines of the re-bends in steps b) and c) are, in particular, perpendicular to each other.

[0070] The plate-shaped element has a particular constant thickness of, for example, 2 - 5 mm.

[0071] In particular, the plate-shaped element is provided in step a) by cutting, especially laser cutting. A sheet metal, especially a steel sheet, is used as the starting material.

[0072] Preferably, the plate-shaped element has the form of a planar development, which includes: two leg areas adjacent to opposite sides of the front panel area, each leg area having at least one, preferably two, opposite edge areas to be bent over and / or one or two flange areas adjacent to the front panel area; and in step b) bends are made between these areas.

[0073] An additional aspect of the present invention relates to an arrangement comprising two components separated by a joint, in particular concrete components, and a device as described above, wherein the sleeve part is inserted in the first component, the mandrel part is inserted in the second component, and the second part of the mandrel is received in the receiving area of ​​the sleeve.

[0074] The two front plates of the mandrel part and the sleeve part are in particular aligned parallel to each other and in particular the two front plates have a distance of 0.1 - 10 cm, in particular 0.5 - 5 cm.

[0075] In this arrangement, the mandrel preferably projects into the sleeve or the mandrel is positioned in the sleeve in such a way that a transmission of transverse forces between the components is enabled, while a compensation of length changes in the direction of the mandrel or sleeve longitudinal axis of the components is ensured.

[0076] In a further aspect, the present invention relates to the use of a device as described above for absorbing shear forces in two structural components, particularly concrete components, separated by a joint. The mandrel preferably projects into or is positioned within the sleeve in such a way as to ensure the transmission of shear forces and simultaneously compensate for changes in length along the longitudinal axis of the mandrel or sleeve.

[0077] In other words, the mandrel is longitudinally displaceable within the sleeve in the arrangement and / or use described above.

[0078] Further advantageous embodiments and combinations of features of the invention can be derived from the following detailed description and the entirety of the patent claims. Brief description of the drawings

[0079] The drawings used to illustrate the exemplary embodiment show: Fig. 1 A perspective view of a device according to the invention for connecting two components separated by a joint, which is suitable for absorbing transverse forces, wherein the device has a mandrel part (left in Fig. 1 ) and a cooperating sleeve part (right in Fig. 1 ) includes; Fig. 2 A top view of the mandrel part made of Fig. 1 on the side facing the joint; Fig. 3 A side view of the mandrel part made of Fig. 1 Fig. 4 A schematic representation of the device made of Fig. 1, which is installed in two concrete components separated by a joint. The dowel part is cast into the left component and the sleeve part into the right component. The dowel projects into the sleeve, thus enabling the transmission of shear forces while ensuring compensation for changes in length along the longitudinal axis of the dowel or sleeve; Fig. 5 A plate-shaped steel element, which, after being bent along the dashed lines, is joined together with the backplate element made of Fig. 6 for the manufacture of the reinforcing element of the device made of Fig. 1 can be used; Fig. 6 A backplate element for manufacturing the device from Fig. 1 ; Fig. 7A solid cylindrical mandrel, which together with the plate-shaped element made of Fig. 5 and the backplate element made of Fig. 6 to the thorn part Fig. 1 can be assembled.

[0080] Basically, identical parts in the figures are marked with the same reference symbols. Ways to implement the invention

[0081] Fig. 1 Figure 1 shows a device 1 according to the invention for connecting two components B1, B2 separated by a joint F, which is suitable for absorbing transverse forces. A representation of the device 1 in its installed state is shown in Figure 1. Fig. 4 shown.

[0082] In Fig. 1 On the left is a mandrel part 100 of the device 1 with a cylindrical mandrel 101 having a mandrel longitudinal axis DL, the first section 101a of which can be inserted into the second component B2. On the right in Fig. 1A sleeve part 200 of the device 1 is shown, comprising a hollow cylindrical sleeve 201 with a sleeve longitudinal axis HL, which can be inserted into the first component B1. The sleeve 201 has an insertion opening 201a and an adjoining receiving area 201b and is designed such that a second area 101b of the mandrel 101 can be received in the receiving area 201b of the sleeve 201. Fig. 2 The mandrel part 100 is shown in a top view of the front plate 110, while Fig. 3 shows the thorn part 100 from the side.

[0083] A mandrel-side reinforcement element 102 is arranged on the mandrel 101, which has a rectangular mandrel-side front plate 110 to be aligned against the joint F, on which opposite edges 115, 116 (see Fig. 2) each has a mandrel-side leg 120, 130. The mandrel-side legs 120, 130 project in a direction from the second area of ​​the mandrel 101b to the first area of ​​the mandrel 101a away from the mandrel-side front plate 110.

[0084] The front plate 110 on the mandrel side has an opening 110a through which the mandrel 101 is passed.

[0085] The mandrel-side legs 120, 130 each have a rectangular, flat central area 121, 131. On opposite sides of the central areas 121, 131, bent edge sections 123, 125, 133, 135 in the form of rectangular planar areas are located along bending lines 122, 124, 132, 134 running parallel to the mandrel's longitudinal axis. The edge sections 123, 125, 133, 135 extend along the entire length of the central areas 121, 131 in the direction of the mandrel's longitudinal axis.

[0086] The two mandrel-side legs 120, 130 are essentially identical in construction. Furthermore, the mandrel-side legs 120, 130, or rather their central areas 121, 131, are aligned parallel to each other and are perpendicular to the front plate 110, so that together with it they form a U-shape.

[0087] The bent rectangular edge sections 123, 125, 133, 135 are angled at an oblique angle W of, for example, 45° from the corresponding central areas 121, 131, and the planar areas of the edge sections 123, 125, 133, 135 lie in geometric planes E1, E2, which intersect the mandrel-side front plate 110 (see Fig. 2 ).

[0088] On the mandrel-side legs 120, 130, a mandrel-side back plate 140 is arranged on the rear edge of the mandrel-side legs 120, 130 in an area facing away from the mandrel-side front plate 110. This back plate projects away from the mandrel-side legs 120, 130 in a direction perpendicular to the longitudinal axis of the mandrel and connects the two legs at the rear end.

[0089] On each of the two mandrel-side legs 120, 130, two projections 126, 136 are arranged in a direction extending away from the mandrel-side front plate 110. These projections engage in corresponding recesses in the mandrel-side back plate 140 and extend through it. This creates a positive connection between the back plate 140 and the legs 120, 130, and the back plate 140 acts as a connecting element between the two legs.

[0090] The first section 101a of the mandrel 101 is also passed through a circular opening in the mandrel-side back plate 140, so that it is held in a form-fitting manner.

[0091] The mandrel 101 is preferably spot-welded to the front plate 110 and the back plate in the area of ​​the openings 110a, so that it does not slip when the mandrel part is cast. For the same reason, the back plate 140 is preferably welded to the projections 126, 136 in the area of ​​these projections.

[0092] The back plate 140 on the mandrel side also has four L-shaped openings 141, through which the mandrel part 100 can be connected to third elements, in particular reinforcements and / or formwork, in a force-fit and / or form-fit manner.

[0093] On the mandrel-side front plate 110, a flange 112, 114 is located on opposite edges 111, 113, which project away from the mandrel-side front plate in the direction from the second area 101b of the mandrel 101 to the first area 101a of the mandrel 100.

[0094] The sleeve part 200 is constructed analogously. However, instead of the mandrel 101, it has a sleeve 201 with a sleeve opening 201a and a receiving area 201b behind it. This receiving area is dimensioned such that it can positively engage the mandrel part 101b with slight play, allowing the mandrel part 101b to slide along the longitudinal axis of the sleeve within the receiving area 201b. Furthermore, the sleeve part 200 has two flanges 212, 214, which are designed differently from the flanges 112, 114 on the mandrel part 100. Additional L-shaped profiles are arranged on the flanges 212, 214, one leg of which lies in the plane of the front plate 210. The remaining components of the sleeve part 200 essentially correspond to the corresponding components of the mandrel part 100 and are provided with reference numerals increased by the value 100.

[0095] Fig. 5shows a plate-shaped element 102' made of steel, which together with the back plate element 140' made of Fig. 6 for the manufacture of the reinforcing element 102 of the device 1 from Fig. 1 can be used. From these two elements, together with the one in Fig. 7 the pin element 101' shown, the pin part 100 made of Fig. 1 to be manufactured.

[0096] The plate-shaped element made of Fig. 5102' has a rectangular front panel area 110', two rectangular leg areas 120', 130' each with a central area 121', 131' and opposing, foldable edge section areas 123', 125', 133', 135', and two rectangular projection areas 126', 136' extending from the front panel area 110', as well as flange areas 112', 114' adjacent to and opposite the front panel area 110'. The plate-shaped element consists, for example, of a single piece of steel sheet with a constant thickness of, for example, 2-5 mm.

[0097] The broken lines represent the bending edges 111', 113', 122', 124', 132', 134' or, after bending, the corresponding edges 111, 113, 122, 124, 132, 134 in the reinforcement element 102.

[0098] In the center of the front plate 110' there is also a circular opening 110a', which is for receiving the spindle 101' ( Fig. 7 ) is designed.

[0099] The in Fig. 6 The illustrated backplate element 140' has a circular opening 140a', which is for receiving the mandrel 101' ( Fig. 7 ) is designed. Further rectangular openings 140b', 140c' are designed to accommodate the projecting areas 126', 136'. The L-shaped openings 141' form the openings 141 in the dowel section 100, through which the dowel section 100 can be connected to third elements, in particular reinforcements and / or formwork, by means of a force-fit and / or form-fit connection.

[0100] The plate-shaped element 102' and the back plate element 140' can be manufactured quickly and precisely, for example, by laser cutting.

[0101] The production of the mandrel part 100 from Fig. 1This can be done, for example, as follows: The plate-shaped element 102' is provided and bent between the various sections 110', 112', 114', 121', 123', 125', 131', 133', 135' at the bending edges 111', 113', 115', 116', 122', 124', 132', 134'. The bending edges 111', 113', 115', 116' are bent by 90°, while the bending edges 122', 124', 132', 134' are bent, for example, by 45° upwards out of the plane of the sheet.

[0102] Then the Dorn 101' is removed. Fig. 7 inserted into openings 110a', 140a' and the backplate element 140' made of Fig. 6 over the projection areas 126', 136'. Mandrel 101' and back plate element 140' are then spot-welded together.

[0103] This means the mandrel part is 100% made of Fig. 1 Completed. The sleeve part can be manufactured using an analogous process.

[0104] The embodiments described above are to be understood merely as illustrative examples, which can be modified as desired within the scope of the invention.

[0105] For example, it is possible to omit the back plates 140, 240 and / or the projections 126, 136, 226, 236, to provide shorter and / or differently shaped and / or differently curved areas 123, 125, 133, 135, 223, 225, 233, 235 on the legs 120, 130, 220, 230 and / or to attach only one leg to the front plates 110, 210.

[0106] It is also possible to design the mandrel part 100 and the sleeve part 200 differently, apart from the differences caused by the mandrel and sleeve, for example with a different number of legs and / or bent areas.

[0107] Furthermore, flanges 112, 114, 212, and 214 can be omitted and / or have a different shape. In particular, the flanges can also be mounted at a different angle to the front panels.

[0108] In summary, it can be stated that novel and particularly advantageous devices for connecting two components separated by a joint have been created, which are suitable for absorbing transverse forces.

Claims

1. Device (1) for connecting two construction components (B1, B2) separated by a joint (F), in particular concrete construction components, which is suitable for absorbing transverse forces, comprising a mandrel part (100) comprising a mandrel (101) with a first region (101a) which can be inserted in the second construction component (B2), and a sleeve part (200) with a sleeve (201) which can be inserted in the first construction component (B1), wherein the sleeve (201) has an insertion opening (201a) and an adjoining receiving region (201b) and is designed in such a way that a second region (101b) of the mandrel (101) can be received in the receiving region (201b) of the sleeve (201); wherein a mandrel-side reinforcing element (102) is arranged on the mandrel (101) and has a mandrel-side front plate (110) which is to be aligned against the joint (F) and on which a mandrel-side leg (120) is present on at least one edge (115), wherein the mandrel-side leg(120) projects away from the mandrel-side front plate (110) in a direction from the second region (101b) of the mandrel (101) to the first region (101a) of the mandrel (101); and wherein the mandrel-side front plate (110) has an opening (110a) through which the mandrel (101) is guided; and wherein a sleeve-side reinforcing element (202) is arranged on the sleeve (201) and has a sleeve-side front plate (210) which is to be aligned against the joint (F) and on which a sleeve-side leg (220) is present on at least one edge (215), wherein the sleeve-side leg (220) projects away in a direction from the insertion opening (201a) to the receiving region (201b); and wherein the sleeve-side front plate (210) has an opening through which a region of the insertion opening (201a) of the sleeve is guided; characterized in that at least in sections a bent edge section (123) is present on the mandrel-side leg (120), bent along a bending line (122) running parallel to a mandrel longitudinal axis (DL), and / or a bent edge section (223) is present on the sleeve-side leg (220), bent along a bending line (222) running parallel to a sleeve longitudinal axis (HL)2. Device according to Claim 1, characterized in that at least in sections a further bent edge section (125) is present on the mandrel-side leg (120), on a side of the leg (120) opposite the bent edge section (123), bent along a further bending line (124) running parallel to the mandrel longitudinal axis (DL), and / or at least in sections a further bent edge section (225) is present on the sleeve-side leg (220), on a side of the sleeve-side leg (220) opposite the bent edge section (223), bent along a further bending line (224) running parallel to the sleeve longitudinal axis (HL).

3. Device according to either of claims 1 and 2, characterized in that the mandrel-side front plate (110) has a further mandrel-side leg (130) on a further edge (116) opposite the at least one edge (115), which further mandrel-side leg projects away from the mandrel-side front plate (110) in a direction from the second region (101b) of the mandrel (101) to the first region (101a) of the mandrel (101), and / or in that the sleeve-side front plate (210) has a further sleeve-side leg (230) on a further edge (216) opposite the at least one edge (215), which further sleeve-side leg projects away in a direction from the insertion opening (201a) to the receiving region (201b), and in that at least in sections a bent edge section (133) is present on the further mandrel-side leg (130), bent along a bending line (132) running parallel to a mandrel longitudinal axis (DL), and / or at least in sections a bent edge section (233) is present on the sleeve-side leg (230), bent along a bending line (232) running parallel to a sleeve longitudinal axis (HL).

4. Device according to claim 3, characterized in that at least in sections a further bent edge section (135) is present on the further mandrel-side leg (130), on a side of the further mandrel-side leg (130) opposite the bent edge section (133), bent along a further bending line (134) running parallel to the mandrel longitudinal axis (DL), and / or at least in sections a further bent edge section (235) is present on the further sleeve-side leg (230), on a side of the further sleeve-side leg (230) opposite the bent edge section (233), bent along a further bending line (234) running parallel to the sleeve longitudinal axis (HL).

5. Device according to either of claims 3 and 4, characterized in that the two sleeve-side legs (220, 230) and the sleeve-side front plate (210) form a U shape, and / or in that the two mandrel-side legs (120, 130) and the mandrel-side front plate (110) form a U shape.

6. Device according to any of claims 1 to 5, characterized in that the at least one mandrel-side leg (120), in particular both mandrel-side legs (120, 130), and / or the at least one sleeve-side leg (220), in particular both sleeve-side legs (220, 230), each have a planar central region (121, 131, 221, 231), and the bent edge section(s) (123, 125, 133, 135, 223, 225, 233, 235) are each designed as planar regions, in particular rectangular regions, which project from the central region (121, 131, 221, 231) at an oblique angle (W), in particular at an angle of 5 to 90°, specifically 25 to 65°.

7. Device according to claim 6, characterized in that the planar region of the at least one bent edge section (123, 125, 133, 135) on the at least one mandrel-side leg (120, 130) lies in a geometric plane (E1, E2) which intersects the mandrel-side front plate (110); and / or in that the planar region of the at least one bent edge section (223, 225, 233, 235) on the at least one sleeve-side leg (220, 230) lies in a geometric plane which intersects the sleeve-side front plate (210).

8. Device according to any of claims 1 to 7, characterized in that the bent edge section or the bent edge sections (123, 125, 133, 135, 223, 225, 233, 235) each extend over at least 50%, in particular at least 75%, specifically at least 90%, in particular 100%, of the length of the associated leg (120, 130, 220, 230) in the direction of the mandrel longitudinal axis (DL) or the sleeve longitudinal axis (HL).

9. Device according to any of claims 1 to 8, characterized in that a back plate (240) is arranged on the at least one sleeve-side leg (220), in a region facing away from the sleeve-side front plate (210), in particular on a rear edge of the sleeve-side leg (210), which back plate projects away from the sleeve-side leg (220) in a direction perpendicular to the sleeve longitudinal axis (HL), wherein the sleeve (201) is preferably guided through an opening in the sleeve-side back plate (240), and / or in that a mandrel-side back plate (140) is arranged on the at least one mandrel-side leg (120), in a region facing away from the mandrel-side front plate (110), in particular on a rear edge of the mandrel-side leg (120), which back plate projects away from the mandrel-side leg (120) in a direction perpendicular to the mandrel longitudinal axis (DL), wherein the first region of the mandrel (101a) is preferably guided through an opening in the mandrel-side back plate (140).

10. Device according to claim 9, wherein the sleeve-side back plate (240) is connected in a form-fitting manner to the at least one sleeve-side leg (220), in particular to both sleeve-side legs (220, 230); and / or in that the mandrel-side back plate (140) is connected in a form-fitting manner to the at least one mandrel-side leg (120), in particular to both mandrel-side legs (120, 130).

11. Device according to any of claims 1 to 10, characterized in that the sleeve-side back plate (240), the mandrel-side back plate (140) and / or the connecting element have one or more apertures (141, 242), via which the mandrel part (100) and / or the sleeve part (200) can be connected in a force-fitting and / or form-fitting manner to third-party elements, in particular reinforcements and / or formworks.

12. Device according to any of claims 1 to 11, characterized in that the mandrel-side front plate (110) and the at least one mandrel-side leg (120), in particular both mandrel-side legs (120, 130), with the at least one bent edge section (123), in particular with both bent edge sections (123, 125), are obtainable or have been obtained from a single-piece plate-shaped element (102') by bending; and / or in that the sleeve-side front plate (210) and the at least one sleeve-side leg (220), in particular both sleeve-side legs (220, 230), with the at least one bent edge section (223), in particular with both bent edge sections (223, 225), are obtainable or have been obtained from a single-piece plate-shaped element by bending.

13. Method for producing a mandrel part (100) and / or a sleeve part (200) as described in any of claims 1 to 12, comprising the steps of: a) providing a plate-shaped element (102'), in particular made of metal, preferably of steel, which has the form of a planar development comprising at least the front plate region (110'), a leg region (120') with a central region (121') and an edge section region (123') to be bent of the mandrel-side reinforcing element and / or of the sleeve-side reinforcing element; b) bending the plate-shaped element (102') between the front plate region (110') and a leg region (120'); c) bending the plate-shaped element (120') between the central region (121') and an edge section region (123') to be bent; d) inserting a mandrel (101') into an opening (110a') in the front plate region and / or inserting a sleeve into an opening in the front plate region and optionally fixing the mandrel (101') and / or the sleeve in a materially bonded manner in the respective opening; e) optionally attaching the back plate (140'), in particular by force-fitting and / or form-fitting connection.

14. Arrangement comprising two construction components (B1, B2), in particular concrete construction components, separated by a joint (F), and a device (1) according to one of claims 1-12, wherein the sleeve part (200) is inserted in the first construction component (B1), the mandrel part (100) is inserted in the second construction component (B2) and the second region (101b) of the mandrel (101) is received in the receiving region (201b) of the sleeve (201).

15. Use of a device (1) according to one of claims 1-12 for absorbing transverse forces in two construction components (B1, B2), in particular concrete construction components, separated by a joint (F).