EP2146004A2 - Shear pin connection - Google Patents

Abstract

The system (2) has a sleeve part fixed to a component (40) using a reinforcement, and an arbor part fixed to another component (42) using another reinforcement. A connection between the components is formed by an arbor of the arbor part. The arbor is guided in a sliding sleeve of the sleeve part. A holding element holds the sliding sleeve and is provided on the former reinforcement. The holding element is made of two different materials and formed as a rectangular profile with two parallel surfaces. The surfaces are aligned parallel to joining-sided front sides of the components. The rectangular profile has a hollow space that is filled with a high-strength material such as high-strength concrete.

Description

Technical area

The invention relates to a connection system for connecting a first component to a second component, as it is used regularly for the connection of concrete slabs, according to claim 1. The connection system is of the type of Schubdornverbindung in which a mandrel part is arranged in one component and in the other Component a sleeve part in which the mandrel is guided in a sliding sleeve. Furthermore, the invention relates to a mandrel part and a sleeve part of such a connection system.

State of the art

A Schubdornverbindung of the type mentioned for the connection of two concrete slabs is from the EP 0 886 008 A1 known. Such Schubdornverbindungen usually serve to produce expansion joints in reinforced concrete. Schubdornverbindungen be required when relative movements of the concrete components to be joined must be made possible due to stress or thermal expansion, so that the concrete components are not damaged. The Schubdornverbindungen serve in such systems for receiving and transmitting shear forces.

The in the EP 0 886 008 A1 described Schubdornverbindung comprises an anchoring plate on which a load distribution tube is held. This anchoring plate surrounds the load distribution tube in the manner of a flange. Within the load distribution tube is centrally disposed a sliding sleeve, which is held in the load distribution tube, on the front side of the component, by a solid shoulder. Furthermore, anchoring brackets are welded to the anchoring plate. The initially free space between sliding sleeve and load distribution pipe is poured with concrete. It should be noted that the shoulder is designed such that the forces are efficiently directed radially outwards can be. The load distribution in the axial direction is effected by the seated on the shoulder tube, which is filled by the on-site concrete.

In the known systems, two basic types are distinguished, so-called N types and so-called Q types. Type N thrust mandrel connections permit movement of the reinforced concrete components relative to each other in the direction of a mandrel axis of the mandrel. Type Q connections allow for both mandrel and transverse movement. Type Q connections thus have two degrees of freedom, type N connections only one degree of freedom.

From the EP 0 773 324 A1 is a device for connecting and for absorbing transverse forces of two separated by a joint components, in which the particular concrete components are connected by means of a mandrel. One of the two end portions of the mandrel is embedded in the first component, while in the second component, a sleeve is inserted, in which the other of the two end portions of the mandrel penetrates. On the mandrel and the sleeve flange-like discs are arranged in each case in the region of the joint, which are aligned substantially perpendicular to the mandrel and sleeve and which are at least partially embedded in the corresponding components. According to one embodiment, the flange-like discs may be formed as part of plates, which are bent into a box profile and which have recesses for receiving anchoring brackets, by means of which the plates are cast in the concrete component. The mandrel is guided in the box profile both on the side facing the joint, and on the side facing away from the joint of the box profile.

A disadvantage of this solution, however, is that long spikes must be provided by the relatively large expansion of the boxes in the mandrel direction. These are usually made of stainless steel because they are exposed to moisture and would otherwise tend to rust. However, such long mandrels made of stainless steel are relatively expensive. Another disadvantage is that the box-like plates tend temperature and age to deformation, so that the sleeve side no proper guidance of the thrust mandrel can be guaranteed more. As a result, friction noises can occur, which continue in a building as structure-borne noise and thus lead to significant impairments or even significant structural defects.

From the EP 1 477 620 A1 a fastener for concrete components is known in which a profile mandrel is provided for connecting two concrete components, which has partitions padding, which allow a certain elasticity of the concrete components relative to the fastener to reduce stress peaks in the concrete components.

The DE 199 64 031 A1 describes a sleeve / mandrel connection for transmitting transverse forces between two adjacent components. The sleeve of this compound is provided on its front side with a front plate. In addition, the sleeve is surrounded by multiple U-shaped bent pressure distribution elements, which are also attached to the back of the face plate. A corresponding structure is provided for the mandrel associated with the other component.

The DE 1 659 187 A describes a horizontally displaceable sliding anchor for transmitting vertical loads from one component to another component. It is used a rod or thorn-shaped anchor. This armature is arranged so that one end thereof is fixedly connected to the one component and is horizontally displaceable with the other component and rotatably connected about at least one axis. For this purpose, this armature is held movably in the other component in a sleeve firmly integrated therein. The sleeve contains elements that improve the slidability of the anchor therein.

A disadvantage of the fastening element known there, that it has no sufficient edge strength, so that the concrete in the region of the joint can break despite the padding. In addition, the concrete components can move through the required thick padding against each other in the direction of force, so that the dimensional accuracy of the components to each other is not particularly large.

task

Proceeding from this, the object is to develop a connection system of the type mentioned in that it allows a high-strength connection of the components without the risk of damage to two components, the connection system allows proper management of the mandrel and wherein the connection system is also more cost effective to produce as known from the prior art systems.

Presentation of the invention

The object is achieved by a connection system according to claim 1 and by a connection system according to the independent claim 11. The object is further achieved by a mandrel part according to the independent claim 14 and a sleeve part according to the independent claim 15,

An inventive connection system for connecting a first component to a second component has a sleeve part which can be fixed by means of a reinforcement in the first component. The reinforcement serves to strengthen the component and gives it a higher load capacity. Furthermore, a mandrel part is provided which can be fixed in the second component by means of a reinforcement. The mandrel is feasible in the connected system of the two components in a sliding sleeve of the sleeve part.

The holding element in the form of the rectangular profile or the trapezoidal profile has two parallel opposing surfaces. This profile is aligned parallel to the joint-side end face of the corresponding component. Such a profile is preferably used for both the sleeve part and for the mandrel part. The sliding sleeve of such a sleeve part then runs preferably at right angles to these parallel surfaces of the holding element. The same applies to the mandrel of the mandrel part, which is inserted into the other component. For the retaining element other profiles are possible, but two opposite, essentially should have parallel surfaces through which the sliding sleeve of the sleeve part or the mandrel of the mandrel part leads. Such a holding element has the further advantage that it can be arranged very close to the joint with the one surface part of the two parallel surfaces. Due to the course of the holding element parallel to the component joint, the holding element can be made very long, since it does not penetrate into the reinforcement of the component by its position on the edge of the component. Consequently, it is possible to involve a much larger area of the reinforced concrete component at the local load entry, since a larger so-called puncture cone is formed.

With the Schubdornverbindung invention, the transverse force is transmitted through the joint through the mandrel. Due to the design of the holding element (preferably concreted stainless steel tube), the mandrel is guided exactly, and due to the geometry of the holding element (rectangular profile or trapezoidal profile) a clamping of the mandrel is achieved by the opposite parallel surfaces. The mandrel is thereby only very wenig.verdreht directly at the gate of the component edge. This design of the retaining element also makes it possible to use a very short mandrel, which then does not hit the component-side reinforcement. The transferred transverse force can be introduced into the reinforced concrete component by welded reinforcement stirrups.

The reinforcement may be part of an already existing component-side reinforcement or may be a reinforcement belonging to the connection system, which is integrated with the system together in the components.

The first and the second component consist of regular concrete, reinforced concrete or other materials that are cast for the production of components.

The two components form a joint to each other, which serves to compensate for relative movements of the two components, for example, caused by temperature changes. Preferred applications of the connection system thus exist in particular for components with large dimensions, which are too large Extensions to temperature changes tend, for example, bridges or larger concrete slabs in buildings. The gap between the components can for example be filled with an elastic material, which among other things can also have thermal insulation properties.

At the reinforcement of the sleeve part, a holding element for holding the sliding sleeve is provided, which consists of at least two different materials. Whereas, in contrast, in the prior art at best holding elements are known which consist of a material, the requirements for a holding element for holding the sliding sleeve can be achieved much better with the aid of at least two different materials.

It can be provided that the holding element on the one hand partly of a particularly tensile material and on the other hand partly made of a particularly pressure-resistant material, whereby the forces transmitted through the connection system forces can be absorbed particularly well on mandrel, sleeve and retaining element and forwarded into the component.

By optimizing the strength of the holding element, this can also be constructed particularly compact compared to holding elements known from the prior art, which facilitates the assembly of the holding element in the production of the first component. By thus claimed small space is also allows the holding element can be placed very far forward in the region of the joint. As a result, the mandrel is guided by the holding element exactly in the area in which the largest loads are introduced by the thrust pin in the holding element.

The holding element further requires that only the joint itself must be taken into account for the static calculation of the components and the connection system, since the mandrel is so cleanly guided by the optimized holding element, that the majority of the forces on a side facing the joint of the components from the mandrel is introduced into the holding element and from there via the reinforcements in the components itself. The mandrel, which usually consists of expensive stainless steel, can thus be designed to be particularly short; it merely has to pass completely through the retaining element even at the maximum joint.

The holding element is designed as a hollow profile, the cavity is filled with a high-strength material, preferably high-strength concrete.

The high-strength concrete has a particularly high compressive strength. The holding element then ensures that the sliding sleeve and in the sliding sleeve of the mandrel are cleanly guided, since the compact, high-strength and thus distortion-free holding element tends to much less deformation than the known in the art large-sized holding elements. This results in much lower friction stresses in the mandrel, allowing for better guidance and minimizing the occurrence of friction noise.

As a suitable material for providing the hollow profile, steel has proven that can be formed in a conventional manner as a hollow profile, for example by primary molding or forming process. The holding element is preferably made of stainless steel or stainless steel, since such a holding element can withstand better penetrating, offset with electrolyte moisture.

The holding element is designed as a rectangular profile. Rectangular profiles are compared to other profiles, extremely compact, so that the holding element requires compared to other designs smaller space. In addition, the holding element can be arranged by the flat sides of the rectangular profile particularly far forward of the component boundary or joint in the first component, which reduces the load on the first component by improved power dissipation in the relevant area. It is therefore essential that the holding element is formed from a profile having two parallel surfaces.

Instead of a rectangular profile and a trapezoidal profile can be used, the Parallel surfaces are aligned parallel to the joint-side end face. Trapezoidal profiles allow minimizing the size of the holding part, since the trapezoid can be dimensioned according to the static loads.

The fact that with a holding element according to the invention in rectangular profile education an arrangement particularly far forward of the joint of the component is possible, the Schubdorn can also be made particularly short, without reducing the stability of the system or the capacity of it. This leads to a considerable saving on the recommended expensive stainless steel.

Another particularly advantageous embodiment of the connection system provides that in the holding element a plurality of juxtaposed brackets are arranged for a plurality of mandrels. In this way, a holding element of greater length can be specified, in which a plurality of mandrels can be arranged and guided next to one another. In this way, large loads can be transmitted over several parallel mandrels without having to choose a larger mandrel diameter of a single mandrel.

In the known systems, only holders for a sliding sleeve are always provided. This means that between adjacent brackets a certain distance must be maintained, otherwise the carrying capacity of the components can not be guaranteed.

In order to reduce the risk of edge chipping of the component, it is further provided with advantage that a flexible element is arranged on the holding element, which ensures a flexibility of the holding element in the edge region. The flexible element preferably consists of one or more strips which are arranged in areas of possible force peaks. A particular advantage arises when the flexible elements moreover have sealing functions to protect the retaining element and the reinforcement against moisture. Suitable materials are swellable bitumen or elastomers.

For the production of a type Q-connection system according to the invention is provided with preference that in the sleeve part to enable an additional horizontal-tangential relative displacement in the first component between the sliding sleeve and hollow profile, a further sleeve is arranged, which has a horizontal opening, the same size or larger is considered the largest transverse dimension of the sliding sleeve.

The opening of the further sleeve is preferably oval, slot-like or rectangular. The larger opening of the further sleeve allows the sliding sleeve can be received in the other sleeve, and that the sliding sleeve in the other sleeve can slide or roll. Oval, slot-like or rectangular openings of the further sleeve allow particularly compact designs of the further sleeve.

Another advantage arises when the holding element and the reinforcement in the axial direction of the mandrel are connected in series. On the one hand can be achieved in that the holding element and reinforcement are particularly easy to connect to each other, when providing substantially the same materials, for example by welding. The reinforcement can also consist of structural steel, which can be welded to steel or stainless steel.

In addition, can be placed in this way, the holding element particularly far forward in the region of the joint between the first component and the second component, preferably directly on the edge of the component. Furthermore, it is achieved that the reinforcement corresponds to the usual edge surrounds, so that the installation of the system is particularly easy, and that the installation of the other component-side reinforcements in areas where no Schubdornverbindung is provided, not hindered is.

A further particular advantage results if in the mandrel part, a further holding element is provided for the mandrel, which is the holding element of the sliding sleeve substantially in the different embodiments described above equivalent. As a result, a particularly good force introduction of the forces occurring in the second component can also be accomplished on the arbor side, so that edge chipping in the second component can likewise be prevented here and the thrust mandrel can be mounted particularly easily.

Preferably, a guide sleeve for the mandrel is provided in the mandrel part, within which the mandrel is fixable. In this way, the mandrel part can first be mounted without a mandrel and then insert the mandrel.

A first independent aspect of the invention relates to a connection system for connecting a first component to a second component, which has a sleeve part which can be fixed by means of a reinforcement in the first component and which has a mandrel part which can be fixed by means of a reinforcement in the second component , By a mandrel of the mandrel part, a connection between the first component and the second component can be produced, wherein the mandrel can be guided in a sliding sleeve of the sleeve part.

On the one hand can be achieved in that the holding element and reinforcement are particularly easy to connect to each other, when providing substantially the same materials, for example by welding. The reinforcement can also consist of structural steel, which can be welded with steel or stainless steel.

In addition, can be placed in this way, the holding element particularly far forward in the region of the joint between the first component and the second component, preferably directly on the edge of the component. Furthermore, it is achieved that the reinforcement corresponds exactly to the usual edge borders, so that the installation of the system is particularly easy, and that the installation of the other component side reinforcements in areas where no Schubdornverbindung is provided, not hindered.
According to the invention is provided according to the second inventive idea that the holding element and the reinforcement in the axial direction of the mandrel are connected in series. In this way, the holding element can be attach particularly easily to the reinforcement and arrange the holding element particularly far forward in the area of a joint formed between the components. This prevents spalling by force peaks on the first component and allows a particularly reliable guidance of the mandrel in the sleeve part.

Particularly preferably, the holding element for holding the sliding sleeve is made of at least two different materials.

Whereas, in contrast, in the prior art at best holding elements are known which consist of a material, the requirements for a holding element for holding the sliding sleeve can be achieved much better with the aid of at least two different materials.

It can be provided that the holding element on the one hand partly of a particularly tensile material and on the other hand partly made of a particularly pressure-resistant material, whereby the forces transmitted through the connection system forces can be absorbed particularly well on mandrel, sleeve and retaining element and forwarded into the component.

By optimizing the strength of the holding element, this can also be constructed particularly compact compared to holding elements known from the prior art, which facilitates the assembly of the holding element in the production of the first component. By thus claimed small space is also allows the holding element can be placed very far forward in the region of the joint. As a result, the mandrel is guided by the holding element exactly in the area in which the largest loads are introduced by the thrust pin in the holding element.

Incidentally, the connection system according to the first independent idea of the invention has one or more of the other advantageous features of the invention described first.

Another object of the invention relates to a mandrel part of a connection system, as described above.

A final inventive concept relates to a sleeve part of a previously described connection system.

Other objects, features and advantageous applications of the invention will become apparent from the following description of an embodiment with reference to the drawings. All described and / or illustrated features in their meaningful combination form the subject of the present invention, also independent of the claims and their back references.

Brief description of the figures

Fig. 1

ein erfindungsgemäßes Verbindungssystem gemäß einer ersten Ausführungsform in einer Seitenansicht;

Fig. 2

eine perspektivische Ansicht der ersten Ausführungsform von schräg seitlich;

Fig. 3

das System gemäß Fig. 1 in verbautem Zustand;

Fig. 4

das System aus Fig. 1 in perspektivischer Ansicht von schräg oben;

Fig. 5

Elemente des Systems aus Fig. 1 in Explosionsdarstellung;

Fig. 6

Elemente des Systems aus Fig. 5 in vormontiertem Zustand;

Fig. 7

ein erfindungsgemäßes Verbindungssystem gemäß einer zweiten Ausführungsform in perspektivischer Ansicht;

Fig. 8

das System aus Fig. 7 in perspektivischer Darstellung aus einem anderen Blickwinkel heraus;

Fig. 9

das System aus Fig. 7 mit daran angeschlossenen Bewehrungen in perspektivischer Darstellung;

Fig. 10

eine dritte Ausführungsform der Erfindung in perspektivischer Darstellung;

Fig. 11

das System aus Fig. 10 mit daran angeschlossenen Bewehrungen;

Fig. 12

das System aus Fig. 10 in verbautem Zustand; und

Fig. 13

eine Darstellung vergleichbar mit derjenigen der Fig. 6, allerdings mit Halteelementen 14 und 24, die aus einem Trapezprofil gebildet sind.

They show schematically:

Fig. 1

an inventive connection system according to a first embodiment in a side view;

Fig. 2

a perspective view of the first embodiment obliquely from the side;

Fig. 3

the system according to Fig. 1 in installed condition;

Fig. 4

the system off Fig. 1 in a perspective view obliquely from above;

Fig. 5

Elements of the system Fig. 1 in exploded view;

Fig. 6

Elements of the system Fig. 5 in pre-assembled condition;

Fig. 7

an inventive connection system according to a second Embodiment in perspective view;

Fig. 8

the system off Fig. 7 in a perspective view from another angle;

Fig. 9

the system off Fig. 7 with attached reinforcements in perspective view;

Fig. 10

a third embodiment of the invention in perspective view;

Fig. 11

the system off Fig. 10 with reinforcements connected to it;

Fig. 12

the system off Fig. 10 in installed condition; and

Fig. 13

a representation comparable to that of Fig. 6 , but with holding elements 14 and 24, which are formed from a trapezoidal profile.

embodiments

Fig. 1 shows an inventive connection system 2 with a sleeve part 4 and a mandrel part 6 in mutually aligned position.

The sleeve part 4 has a sliding sleeve 8, in which a mandrel 10 is slidably guided. The sliding sleeve 8 is made of polyamide, which minimizes the frictional forces of the mandrel 10 in the sliding sleeve 8. Other suitable plastics are PTFE, PP and the like. The sliding sleeve 8 has an inner diameter which is slightly larger than the diameter of the mandrel 10, so that the mandrel 10 can be easily inserted into the sliding sleeve 8.

The sliding sleeve 8 is fastened in a holding element 12, which is formed from a rectangular tube 14 made of stainless steel, which is a concrete filling 16th made of high-strength concrete. Due to the rectangular tube, the holding element 12 has parallel surfaces 14 ', parallel to the joint 44 of the two components 40; 42 are arranged, as well as in the FIGS. 3 and 4 is shown. As based on the FIG. 3 it can be seen, such a holding element 12 can be arranged very close to the joint of the two components. The sliding sleeve 8 extends, as the figures show, at right angles to the parallel surfaces 14 'of the support member 12 and in the direction of the surface normal of this parallel surface. The holding element 12 is welded to a sleeve-side reinforcement 18. The reinforcing brackets 18 consist of conventional reinforcing steel, for example BSt 500 S.

The structure on the side of the mandrel part 6 is the structure of the sleeve part 4 accordingly. There, a holding element 22 is provided, which has a rectangular tube 24 which is filled with a Betonfollung 26 made of high-strength concrete. The mandrel 10 is fixed in the holding element 24. The holding element 24 is also welded on the mandrel side to a reinforcement 28, which is anchored in the corresponding component (see Fig. 3 ). The parallel sides of the rectangular tube, from which the holding element 24 is formed, are designated by the reference numeral 24 '.

The mandrel 10, like the rectangular tubes 14, 24, made of stainless steel.

On the holding elements 12, 22 two reinforcing brackets 18, 28 are provided for attachment. Depending on the dimensions, a plurality of brackets 18, 28 can also be welded to the retaining elements 12, 22.

Fig. 2 shows the connection system 2 from Fig. 1 in perspective oblique view. The holding element 22 is connected by means of welds 30 with the brackets 28. Sleeve part side, the connection between the holding element 12 and ironing 18 is carried out accordingly.

Fig. 3 shows the connection system 2 according to the invention in a side view in the installed state.

A first concrete slab 40 is provided on the sleeve side, a second concrete slab 42 on the thorn side. A gap 44 is formed between the first concrete slab 40 and the second concrete slab 42, which permits relative movements between the concrete slabs 40 and 42. The holding elements 12, 22 are arranged directly in the edge region of the plates 40, 42 and protrude at the joint-side end face of the concrete slabs 40, 42 up to the surface thereof. By such an arrangement, cracks in the concrete slabs 40, 42 under use load can be particularly effectively prevented.

By this arrangement of the high-strength holding elements 12, 22 directly adjacent to the joint, a load to be transferred is taken up directly by the holding elements 12, 22 and via the welded reinforcements 18, 28 derived in the concrete. This enormously reduces the load on the reinforced concrete components in the area of the mandrel connection, so that they remain free of cracks for a very long time. Namely, the loads are distributed much more extensively with the connection system according to the invention, so that the local forces on the plates 40, 42 are lower than in known thrust pin connections.

Fig. 4 shows the connection system 2 according to the invention in the installed state of obliquely above. Due to the compactness of the connection system 2, the rectangular tubes 14, 24 have in Schubdornrichtung an extension of about 20 to 40 mm, the system 2 can be easily integrated into the rest of the on-site reinforcement 46 without changes to the on-site reinforcement 46 must be made. This greatly facilitates the assembly of the connection system 2. The reinforcements 18, 28 belonging to the sleeve part 4 or mandrel part 6 can also be easily integrated into the usual on-site reinforcement 46.

Fig. 5 shows an exploded view of the connection system 2 according to the invention without sleeve-side and mandrel-side reinforcement.

The mandrel 10 is sleeve-side held in the rectangular tube 24 by means of a sleeve 50 made of polyamide or other suitable materials, whereby the mandrel 10th very easily in the rectangular tube 24 can bring and what noise generation reduces relative movements. If necessary, the plastic sleeve 50 can be dispensed with if the ambient conditions permit this, for example if corresponding noises are counteracted by other methods.

In addition, strips 52 made of swellable bitumen can be laid onto the rectangular tubes 14, 24, as a result of which, on the one hand, a sealing effect is achieved. In this way, the rectangular tubes 14, 24 and the reinforcements 18, 28, 4B can be protected from corrosion, as may occur depending on the particular field of application, in particular, since the moisture usually as an aggressive electrolyte to the rectangular tubes 14, 24 and the reinforcements 18th , 28, 46, in particular when the concrete components 40, 42 have cracks. Furthermore, swellable bitumen in the swollen state has an elasticity which allows a low flexibility between the sleeve part 4 or mandrel part 6 and the concrete slabs 40, 42 under load. In this way, voltage peaks can be further reduced, so that the concrete components 40, 42 have an even lower tendency to crack.

For the completion of sleeve part 4 and mandrel part 6, the sleeves are inserted in a corresponding position in the rectangular tubes 14, 24 and fastened there, preferably by clamping or gluing. Subsequently, in the mandrel part 6, the mandrel 10 is inserted into the plastic sleeve 50 introduced there. The mandrel 10 may be glued or welded in the mandrel 6, for example by spot welding.

If provided, sealing strips 52 are applied to the rectangular tubes 14, 24. Subsequently, the cavities 54 of the rectangular tubes are potted with high-strength concrete ( Fig. 6 ). Sleeve part 4 and mandrel part 6 can be prepared in this form factory side and used element by element at the site.

It is also possible to weld mandrel part 6 and sleeve part 4 to the on-site reinforcement 46, whereby separate mandrel-side and sleeve-side reinforcement parts become superfluous.

The prepared components of the connection system 2 are integrated into the on-site reinforcement 46 or welded to the on-site reinforcement 46, wherein the mandrel 10 of the mandrel part 6 is inserted into the sleeve 8 of the sleeve part 4. Then the reinforcement is boarded and poured with concrete. The rectangular tubes 14, 24 are positioned adjacent to a casing.

The FIGS. 7 to 9 show a second embodiment of the invention, in which a connection system 102 is indicated, which has a sleeve portion 104 and a mandrel portion 106, wherein the sleeve portion 104, two sleeves 108, 109 which are guided into each other. The additional sleeve 109 is slot-shaped and has a clear width which is greater than the largest extension of the sleeve 108, so that the sleeve 108 in the sleeve 109 can slide or roll. In this way, a relative movement of the components to be joined is made possible, which is useful for very large plates, in particular thermal expansion, since the components usually extend in all directions. All other components correspond to the components according to the first embodiment.

Fig. 8 shows the system 102 as viewed from the sleeve portion 104.

Fig. 9 shows the system 102 including reinforcements 118, 128, which are defined by means of welds 130 on the rectangular tubes 114, 124.

The Figures 10 . 11 and 12 show a third embodiment of the invention, according to which a connection system 202 is given, which is opposite to in the FIGS. 1 to 7 shown differs in that on the part of the sleeve part 204 and the side of the mandrel part 206 a plurality of sleeves 208, 209 are provided for a plurality of mandrels 210, 211. The illustrated embodiment according to FIGS. 10 to 12 is just an example, it can too Connection systems are specified with any number of sleeves and a corresponding number of thorns. With the help of the modular design can be compared to the known Schubdornverbindungen transfer significantly higher forces, since with separate Schubdornverbindungen a minimum distance must be maintained in order to maintain the structural strength.

According to Fig. 11 are corresponding to the number of sleeves 208, 209 and mandrels 210, 211 correspondingly more reinforcing bracket 218, 228 provided.

Fig. 12 shows the connection system 202 in the assembled state, as it is integrated in the on-site reinforcement 246.

Fig. 13 shows another connection system 262 in a representation that corresponds to that of Fig. 6 is comparable. Compared to the connection system 2 of Fig. 6 rejects the connection system 262 Fig. 13 Holding elements 12 and 22 which are associated with the sleeve part 4 and the mandrel part 6, which are formed from a trapezoidal profile 263. It is essential that this trapezoidal profile 263 has two parallel side surfaces 263 '. In Fig. 13 It can be seen that this trapezoidal profile is oriented so that the smaller area points to the joint of the interconnected components. This has the advantage that the large area is available as a surface for welding the reinforcement parts. The trapezoidal profile 263 could also be rotated so that the large area faces the joint.

Not shown is another conceivable embodiment in which in a rectangular tube a plurality of sleeves or a plurality of mandrels according to the third embodiment, which are designed as type Q according to the second illustrated embodiment.

LIST OF REFERENCE NUMBERS

2 connection system 116 concrete filling 4 sleeve part 118 Sleeve-side reinforcement 6 mandrel part 122 retaining element 8th sliding sleeve 124 rectangular tube 10 mandrel 126 concrete filling 12 retaining element 128 Thorn-side reinforcement 14 Rectangular tube; 14 'parallel. surfaces 130 welds 16 concrete filling 152 bitumen strips 18 Sleeve-side reinforcement 202 connection system 22 retaining element 204 sleeve part 24 rectangular tube 206 mandrel part 26 concrete filling 208 sliding sleeve 28 Thorn-side reinforcement 209 sliding sleeve 30 welds 210 mandrel 40 First component 211 mandrel 42 Second component 212 retaining element 44 Gap 214 rectangular tube 46 On-site reinforcement 216 concrete filling 50 Plastic sleeve 218 Sleeve-side reinforcement 52 bitumen strips 222 retaining element 54 cavities 224 rectangular tube 102 connection system 226 concrete filling 104 sleeve part 228 Thorn-side reinforcement 106 mandrel part 230 welds 108 sliding sleeve 240 first component 109 Slot-shaped sliding sleeve 242 second component 110 mandrel 244 Gap 112 retaining element 246 on-site reinforcement 114 rectangular tube 252 bitumen strips 262 another connection system 263 Trapezoidal profile; 263 'parall, surfaces

Claims (15)

A connection system for connecting a first component (40; 240) to a second component (42; 242), comprising a sleeve part (4; 104; 204) which is connected by means of a reinforcement (18; 46; 118; 218; 246) in the first A mandrel part (6; 106; 206) which by means of a reinforcement (28; 46; 128; 218; 246) in the second component (42; 242) can be fixed, wherein by a Mandrel (10; 110; 210; 211) of the mandrel part (6; 106; 206) is connectable between the first component (40; 240) and the second component (42; 242), the mandrel (10; 210; 211) is guidable in a sliding sleeve (8; 108; 208) of the sleeve part (4; 104; 204), and wherein on the reinforcement (18; 46; 118; 218; 246) of the sleeve part (4; 104; 204 a holding element (12; 112; 212) is provided for holding the sliding sleeve (8; 108; 208) which consists of at least two different materials, characterized in that the holding element (12; 112; 212) is designed as a profile (14 ; 114; 214; 263) au is formed, the two substantially parallel surfaces (14 '; 263 '), said surfaces of the profile (14; 114; 214; 263) being aligned parallel to the joint-side end face (40; 240; 42; 242) of the corresponding component. Connection system according to claim 1, characterized in that the profile is formed as a rectangular profile (14; 114; 214). Connection system according to claim 1, characterized in that the profile is designed as a trapezoidal profile (263). Connection system according to one of claims 1 to 3, characterized in that the hollow space (54) of the hollow profile (14; 114; 214; 263) of the holding element (12; 112,212) is connected to a high-strength material, preferably high-strength concrete (16; ; 216). Connection system according to one of claims 1 to 4, characterized in that in the holding element (12; 112; 212) more side by side brackets for a plurality of spikes (210, 211) are provided. Connection system according to one of the preceding claims, characterized in that the holding element (12; 112; 212) is sealed by means of a flexible element (52; 152; 252), preferably consisting of one or more strips. Connection system according to one of the preceding claims, characterized in that provided in the sleeve part (104) for enabling an additional horizontal-tangential relative displacement between the first component and the second component between the sliding sleeve (108) and retaining element (112) has a further sleeve (109) is, which has a horizontal opening which is equal to or larger than the largest transverse dimension of the sliding sleeve (108), wherein the opening of the further sleeve (109) is preferably oval, oblong hole or rectangular. Connection system according to one of the preceding claims, characterized in that the holding element (12; 112; 212) and the reinforcement (18; 46; 118; 218; 246) are connected in series in the axial direction of the mandrel (10; 110; 210). Connection system according to one of the preceding claims, characterized in that the mandrel part (6; 106; 206) has a second holding element (22; 122; 222) for the mandrel (10; 110; 210; 211) corresponding to the sleeve-side holding element (22; 12, 112, 212) according to one of claims 1 to 4 is formed. Connection system according to one of the preceding claims, characterized in that a guide sleeve (50) for the mandrel (10; 110; 210; 211) is provided in the mandrel part (6; 106; 206). A connection system for connecting a first component (40; 240) to a second component (42; 242), comprising a sleeve part (4; 104; Reinforcement (18; 28; 46; 118; 218; 246) can be fixed in the first component (40; 240), and a mandrel member (6; 106; 206) secured by means of a reinforcement in the second component (42; 242) a connection between the first component (40, 240) and the second component (42, 242) can be produced by a mandrel (10, 110, 210, 211) of the mandrel part (6, 106, 206); Mandrel (10; 110; 210; 211) in a sliding sleeve (108) of the sleeve part (104) is guided, characterized in that the holding element (12; 112; 212) and the reinforcement (246) in the axial direction of the mandrel (10 ; 110; 210; 211) are connected in series. Connection system according to claim 11, characterized in that the holding element (12; 112; 212) consists of at least two different materials. A connection system according to claim 10 or 11, having one or more of the further features of the connection system (2; 102; 202) according to claim 1 as set forth in subclaims 2 to 6, 8 and 9. Mandrel part (6; 106; 206) of a connection system (2; 102; 202) according to one of the preceding claims. A sleeve part (4; 104; 204) of a connection system (2; 102; 202) according to one of claims 1 to 14.

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