EP2982807A1 - Device for connecting two components separated by a joint - Google Patents

Abstract

A device for connecting two components separated by a joint for absorbing transverse forces comprises a mandrel (1) which is inserted in a first component, and a sleeve (2) which is inserted in the second component. Mandrel (1) and sleeve (2) are provided with reinforcing elements (3), each having a directed against the joint first plate (4) on which on opposite sides bow portions (5) are mounted. The space formed between the first plate (4) and the stirrup areas (5) is filled by a filling compound (7). At least the two side surfaces (8) of the filling compound (7) are provided with projections (10) and depressions (11), which are formed in the filling compound (7). As a result, an optimal anchoring of the reinforcing elements (3) is achieved in the components.

Description

The present invention relates to a device for connecting two components separated by a joint, in particular of concrete, which is suitable for receiving transverse forces acting in one direction and / or in the opposite direction, comprising a mandrel whose one region can be inserted in the first component is, and a sleeve which is insertable in the second member, and which serves to receive the other portion of the mandrel, with reinforcing elements mounted on the mandrel and on the sleeve, each having a facing against the joint first plate, on which at opposite Side bracket portions are mounted, which extend away from the joint, and the first plate has an opening through which each of the mandrel and the sleeve is guided, and the space between the first plate and the strap portions is filled by a filling material.

If in civil engineering components such as roof panels, floor panels, ceilings, walls, retaining walls and so on are to be connected to each other, it is necessary to provide joints between the components to be joined. These components are usually made of concrete, but other appropriate suitable materials can be used. These joints are required so that expansions of the components can be compensated for temperature fluctuations and shrinkage and creep. At the same time, however, these components should be connected to one another in such a way that lateral forces can be transmitted from one component to the other without impairing the expansions described above. In this case, multiple mandrel-sleeve connections are selected, the mandrel part is arranged in a first component so that the one end region of the mandrel protrudes from the relevant component, this protruding end portion of the mandrel penetrates into a sleeve which is arranged in the other component. About this mandrel-sleeve connection occurring between the components transverse forces can be optimally transmitted, the mandrel is held longitudinally displaceable in the sleeve, whereby the expansions of the components can be compensated. The sleeve can also be designed in a known manner so that even small lateral displacements of the mandrel are made possible in the sleeve.

In such compounds of components act particularly at the joint edge high loads on the mandrel-sleeve connection. Accordingly, the concrete surrounding the mandrel and the sleeve in these areas is also very heavily loaded. In order to avoid that in these areas, which have the highest load peaks, the concrete can break out at the joint edge, the mandrel and the sleeve in this area are each equipped with a plate, which are additionally provided with projecting into the components bracket areas. With these preferably made of steel plates with ironing areas to be achieved that the forces to be transmitted to the component distributed as possible over a larger area of the concrete to be distributed. Accordingly, it is achieved that the fracture resistance of the concrete in this area can be improved. Such a device is for example the document EP 0 773 324 B1 removable. To prevent such devices from corroding, they must be made of stainless materials. Such materials have a corresponding higher price.

The object of the present invention is therefore to provide a device for connecting two components separated by a joint, in which the material costs can be kept as low as possible, and which optimal support in the corresponding components and optimal power transmission to the corresponding components and vice versa.

According to the invention, the solution of this object is achieved in that at least the two side surfaces of the filling material, which are bounded by the first plate and the strap portions, are provided with projections and depressions, which are formed in the filling compound.

By attaching projections and depressions at least on the two side surfaces of the filling compound is an optimal anchoring of these reinforcing elements thus formed in the corresponding Component achieved. The transmission of the transverse forces from the mandrel or the sleeve to the corresponding component or vice versa can thereby be optimally supported. Due to the corresponding design of the reinforcing elements on the mandrel and on the sleeve, the first plate may have a smaller thickness, accordingly, the ironing regions may have a smaller thickness, whereby material can be saved and the material costs can be reduced.

Advantageously, the side surfaces of the filling compound on a concave curvature. This ensures that the anchoring in the material of the components is additionally improved by the concave curvatures obtained in addition a positive connection of the reinforcing elements with the components.

Advantageously, the projections and recesses are formed as ribs and grooves which extend substantially parallel to the strap portions. With these ribs and grooves, the transmission of transverse forces from the mandrel and sleeve on the components and vice versa is additionally improved, the forces receiving surface areas are increased.

Advantageously, the ribs and grooves have a triangular cross-section, the transmission of forces is thereby optimal.

A further advantageous embodiment of the invention is that the apex angle of the triangular cross-sections of the ribs and grooves is about 60 ° to 120 °. As a result, the force-receiving surfaces of the ribs and grooves will have an optimal inclination to absorb the lateral forces as well as possible.

Advantageously, the vertex angle of the triangular cross-sections of the ribs and grooves of a side surface is different in size, whereby transverse forces, which may have different directions, can be optimally absorbed.

Advantageously, the first plate facing away from the end portions of the strap portions are provided with bends, whereby an optimum connection between the plate and strap portions and the enclosed filling material is achieved.

A further advantageous embodiment of the invention is that the rear surface formed by the filler between the two bends is also provided with projections and depressions and the rear surface also has a concave curvature. As a result, the anchoring of the reinforcing element in the component is additionally improved.

A further advantageous embodiment of the invention is that the end portions of the opposing bends abut each other and are connected to each other and enclose the mandrel or the sleeve. This ensures that the filling material is optimally enclosed.

The end portions of the opposing bends may also overlap each other and be provided with openings through which the mandrel or the sleeve protrude, thereby it is not necessary to additionally connect the bends with each other.

Advantageously, clamping bolts are used in the ironing areas, which penetrate the two ironing areas and the filling compound and thus gain can be achieved.

Advantageously, the filling compound is a high-strength mortar-like mass, whereby on the one hand the desired strength is achieved, on the other hand, this mortar-like mass can be poured into correspondingly applied around the mandrel or the sleeve shapes and then cure.

Embodiments of the inventive device will be explained in more detail by way of example with reference to the accompanying drawings.

• Figur 1 in räumlicher Darstellung eine erste Ausführungsform der erfindungsgemässen Vorrichtung, bestehend aus Dorn und Hülse, jeweils ausgestattet mit den Verstärkungselementen;
• Figur 2 in räumlicher Darstellung eine zweite Ausführungsform der erfindungsgemässen Vorrichtung mit Dorn und Hülse und Verstärkungselementen;
• Figur 3 in räumlicher Darstellung eine dritte Ausführungsform der erfindungsgemässen Vorrichtung mit Dorn und Hülse und Verstärkungselementen;
• Figur 4 eine Seitenansicht auf die dritte Ausführungsform der erfindungsgemässen Vorrichtung gemäss Figur 3;
• Figur 5 eine Ansicht von oben auf die dritte Ausführungsform der erfindungsgemässen Vorrichtung gemäss Figur 4;
• Figur 6 eine Ansicht auf ein Verstärkungselement einer Hülse, bei welchem die Umbiegungen zusammengefügt und verschweisst sind;
• Figur 7 eine Ansicht auf ein Verstärkungselement einer Hülse, bei welchem die Umbiegungen einander überlappen; und
• Figur 8 bis 11 Ansichten auf Verstärkungselemente mit unterschiedlich ausgestalteten Vorsprüngen und Vertiefungen.

He shows

• FIG. 1 in a spatial representation of a first embodiment of the inventive device consisting of mandrel and sleeve, each equipped with the reinforcing elements;
• FIG. 2 in a spatial representation of a second embodiment of the inventive device with mandrel and sleeve and reinforcing elements;
• FIG. 3 in a spatial representation of a third embodiment of the inventive device with mandrel and sleeve and reinforcing elements;
• FIG. 4 a side view of the third embodiment of the inventive device according to FIG. 3 ;
• FIG. 5 a view from above of the third embodiment of the inventive device according to FIG. 4 ;
• FIG. 6 a view of a reinforcing member of a sleeve in which the bends are joined together and welded;
• FIG. 7 a view of a reinforcing member of a sleeve, in which the bends overlap each other; and
• FIGS. 8 to 11 Views on reinforcing elements with differently designed projections and depressions.

The inventive device for connecting two components, of the in FIG. 1 a first embodiment is shown, each consisting of a mandrel 1 and a sleeve 2. At the mandrel 1 and the sleeve 2, a reinforcing element 3 is mounted in each case. Each of these reinforcing elements comprises a first plate 4, which is aligned perpendicular to the mandrel or sleeve 2 respectively. At the opposite Ends of this first plate 4 are bracket portions 5 are mounted, which are equipped at the end of the respective first plate 4 end portions with bends 6.

The space formed between the stirrup areas 5 and the bends 6 is filled by a filling compound 7. This filler may be a high-strength mortar, but of course other suitable materials are used. To introduce this filling material 7 in said space, a mold can be made in a known manner, by which said space is enclosed, so that the flowable filling compound 7 can be poured into this mold. After curing of this filling compound 7, the mold can be removed, the filling compound 7 then forms a body which fills said space and the mandrel 1 and the sleeve 2 encloses accordingly.

The side surfaces 8 of the body formed by this filling compound 7 have a concave curvature 9. In addition, on the side surfaces 8 projections 10 and recesses 11 are mounted, which are formed in the embodiment shown here as ribs 12 and grooves 13 which extend substantially parallel to the respective mandrel 1 and sleeve 2. These ribs 12 and grooves 13 may, for example, have a triangular cross-section, this triangular-shaped cross-section may be of different size, other shapes may also be used, as will be described later.

The existing between the bends 6 of the two bracket portions 5 rear surface 14 of the filling material 7 may also have a concave curvature 9, also here projections 10 and recesses 11 may be provided, which correspond advantageously to the shape of the projections 10 and recesses 11 of the side surfaces 8 ,

In the reinforcing elements 3 clamping bolts 16 can additionally be used, which respectively penetrate the bracket portions 5 and the filling compound 7, which will be described later in detail.

In a known, not shown manner, the thus formed mandrels 1 and 2 sleeves are inserted into the components to be joined together. Here, the respective sleeve 2 is attached to the casing of a component to be formed, for which purpose nail holes 15 are provided on the first plate. This component is then concreted, after curing, the casing is removed, then the second component is created for this purpose, the mandrels 1 are inserted into the sleeves 2, the corresponding component is then also concreted, thereby obtained on the mandrels and the sleeves one optimal connection of the two components. The first plates 4 are arranged in the respective components in each case flush with the surfaces forming the joint.

In order to achieve a long life of mandrel and sleeve, these and the corresponding parts of the reinforcing elements are formed of a corrosion-resistant material, such as stainless steel, but of course other suitable materials can be used.

In the FIG. 2 illustrated second embodiment of the inventive device for connecting two components separated by a joint is constructed identically, as in FIG. 1 illustrated first embodiment, the only difference is that the ribs 12 and grooves 13 in this second embodiment have a larger triangular cross-section than those in the first embodiment. In addition, the apex angle of this triangular cross-sectional shape, as described later in detail, is also larger.

Out FIG. 3 is a third embodiment of the inventive device for connecting two separated by a joint components visible, in which the triangular cross-sectional shape of the ribs and grooves relative to the in FIG. 2 illustrated second embodiment have a greater height. In addition, here the rear surface 14 of the mandrel 1 can be seen, which is formed in an identical manner, as the rear surface 14 of the sleeve. 2

The FIGS. 4 and 5 show a side view and a top view of the third embodiment of the inventive device for connecting two separated by a joint components, as shown in FIG FIG. 3 is shown. It can be seen in particular how the clamping bolts 16 are inserted into the reinforcing elements 3. These clamping bolts 16 respectively penetrate the ironing regions 5 and filling compound 7, these clamping bolts 16 prevent the ironing regions 5 from possibly being spread apart, as a result of which the resistance of these reinforcing elements 3 can be improved. In a simple way, these clamping bolts 16 may be formed by a hexagon bolt with attached nut, resulting in a particularly cost-effective solution. Also apparent from these two figures is that in each case in the first plate 4 of the mandrel 1 and sleeve 2, an opening 18 is mounted, through which protrude the mandrel 1 and the sleeve 2 and in which openings the Dorn1 and the sleeve 2 attached are, for example, by welding.

FIG. 6 shows another embodiment of a reinforcing element 3, which is placed here on a sleeve 2, of course, this reinforcing element 3 could also be placed on a mandrel. This reinforcing element 3 in turn comprises a first plate 4, which is equipped with the corresponding bracket portions 5. The bends 6 have a greater length, so they collide. The abutting areas of these bends 6 are connected to each other, for example by a weld. The filling compound 7 is in turn introduced into the space formed by the first plate, the stirrup regions and the bends, the side surfaces 8 of this filling compound 7 are formed in the same way as the side surface of the previously described embodiments of the device according to the invention. The first plate 4, the bracket portions 5 and the bends 6 thus form a closed loop, whereby an optimal strength of the reinforcing element 3 thus formed can be achieved. In the FIG. 6 illustrated clamping bolt 16 could be omitted.

FIG. 7 again shows a reinforcing element 3, which is placed on a sleeve 2, but which of course also on a mandrel. 1 could be put on. This reinforcing element 3 has the same structure as the embodiment shown in FIG FIG. 6 has been described, the difference is that the bends 6 have a greater length, so that they overlap each other. The connection of these two bends 6 is achieved by the sleeve 2, which are fixed by correspondingly mounted in the overlapping areas of the bends 6 openings 7. Thus, one obtains in this case, in principle, by the first plate 4, the two strap portions 5 and the overlapping bends 6 a closed loop with the already to FIG. 6 mentioned advantages.

In the FIGS. 8 to 11 In each case, a reinforcing element 3 is shown, which is placed on a sleeve 2. Of course, these reinforcing elements 3 could also be placed on a mandrel. These reinforcing elements 3, as has been described previously, a filling compound 7, through which the side surfaces 8 are formed. As has already been described above, these side surfaces 8 are equipped, for example, with ribs 12 and grooves 13.

FIG. 8 shows ribs 12 which have a triangular cross-section. The apex angle α of this triangular cross-sections is here about 60 °, the side surfaces 8 have a relatively small concave curvature 9.

In FIG. 9 The ribs 12 also have a triangular cross section, in contrast to in FIG. 8 illustrated example, these ribs are formed smaller, the apex angle α is also about 60 °, the side surfaces 8 have a larger concave curvature 9, as in the example according to FIG. 8 ,

In the example according to FIG. 10 the ribs 12 also have a triangular cross-section, the apex angle α is here but about 90 °. The side surfaces 8 have a relatively large concave curvature 9.

FIG. 11 shows an example in which the ribs 12 have a curved surface. The side surfaces 8 in turn have a relatively large concave curvature 9.

At the in FIG. 8 to FIG. 11 Examples shown for the design of the ribs and grooves, the respective rear surfaces are formed corresponding to the side surfaces. Of course, this does not necessarily have to be the case.

In the in FIG. 8 to FIG. 11 As shown in the examples of the embodiment of the ribs and grooves, the ribs have an identical shape and size over the entire side surfaces and rear surfaces. However, this need not be so, for example, ribs with different cross-sectional shapes and optionally different vertex angles can be used on the side surfaces 8 and the respective rear surface.

By the projections and depressions, which are attached to the side surfaces formed by the filling compound and optionally the rear surface of the reinforcing element, an optimal anchoring of these reinforcing elements is obtained in the respective components. A portion of the effective lateral forces can be transmitted in an optimum manner by the surface regions which are formed by the flanks of the projections and depressions, this transfer is particularly optimal in the embodiments in which the projections are formed as ribs and the depressions as grooves. Of course, a majority of the effective transverse forces will be transmitted through the strap sections. An additional improvement in the anchoring and the transmission of forces is obtained by the attachment of concave curvatures of the side surfaces and optionally the back surface. The size of the projections and depressions, the angles that have the corresponding surfaces of the flanks, the shape of the projections and depressions and the choice of the strength of the concave curvatures of the side surfaces and optionally the back surface can optimally on the Einsatzart and for example on the material , from which the components are formed, to be adapted.

Due to the composite construction of the reinforcing elements and the optimum design of the shape and thus the optimal power transmission, the thickness of the first plate and the strap portions and the bends can be kept to a minimum, so here savings of material can be achieved, which is particularly in the use of stainless Steel accordingly affects the price.

Claims (13)

Device for connecting two components separated by a joint, in particular of concrete, which is suitable for receiving transverse forces acting in one direction and / or in the opposite direction, comprising a mandrel (1), one region of which can be inserted in the first component, and one Sleeve (2) which is insertable in the second component, and which serves to receive the other portion of the mandrel (1), with the reinforcing elements (3) attached to the mandrel (1) and the sleeve (2), each one against the Fugue directed first plate (4) on which on opposite sides of bracket portions (5) are mounted, which extend away from the joint, and the first plate (4) has an opening (18) through which each of the mandrel ( 1) or the sleeve (2) is guided through, and the space between the first plate (4) and the bracket portions (5) by a filling compound (7) is filled, characterized in that at least the two side surfaces (8) of F Wüllmasse (7), which are bounded by the first plate (4) and the strap portions (5), with projections (10) and recesses (11) are provided, which are formed in the filling compound (7). Device for connecting two components separated by a joint according to claim 1, characterized in that the side surfaces (8) of the filling compound (7) have a concave curvature (9). A device for connecting two separate by a joint components according to claim 1 or 2, characterized in that the projections (10) and depressions (11) and ribs (12) and grooves (13) are formed substantially parallel to the strap areas (5). Device for connecting two components separated by a joint according to claim 3, characterized in that the ribs (12) and the grooves (13) have a triangular cross-section. Device for connecting two components separated by a joint according to claim 4, characterized in that the vertex angle α of the triangular cross-sections of the ribs (12) and grooves (13) is about 60 ° to 120 °. Device for connecting two components separated by a joint according to claim 4, characterized in that the vertex angle α of the triangular cross-sections of the ribs (12) and grooves (13) of a side surface (8) is of different sizes. Device for connecting two components separated by a joint according to claim 3, characterized in that the ribs (12) and the grooves (13) have different cross-sectional shapes. Device for connecting two components separated by a joint according to one of Claims 1 to 7, characterized in that the end regions of the stirrup regions (5) facing away from the first plate (4) are provided with bends (6). Device for connecting two components separated by a joint according to claim 8, characterized in that between the two bends (6) by the filling compound (7) formed rear surface (14) is also provided with projections (10) and recesses (11) and the rear surface (14) also has a concave curvature (9). Device for connecting two components separated by a joint according to claim 8, characterized in that the end regions of the opposing bends (6) abut one another and are connected to one another and enclose the mandrel (1) or the sleeve (2). A device for connecting two separate by a joint components according to claim 8, characterized in that the end regions of the opposed bends (6) overlap each other and provided with openings (17) are provided, through which the mandrel (1) or the sleeve ( 2) protrude. Device for connecting two components separated by a joint according to one of Claims 1 to 11, characterized in that clamping bolts (16) which penetrate the two ironing regions (6) and the filling compound (7) are inserted into the ironing regions (6). Device for joining two components separated by a joint according to one of claims 1 to 12, characterized in that the filling compound (7) is a high-strength mortar-like mass.

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