DE102010017046A1 - Device for connecting two components separated by a joint and for absorbing transverse forces occurring between the components - Google Patents

Abstract

A device is described for connecting two components separated by a joint and for absorbing transverse forces occurring between the components comprising a mandrel 40, a sleeve 41, at least two end plates 42, 43 arranged on both sides of the joint to be bridged, namely a mandrel-side end plate 42 and The mandrel-side anchoring bracket 44 has a loop portion and two end portions 44a, 44b, wherein the anchoring bracket 44 fixed to the side facing away from the joint of the mandrel-side end plate 42 with the mandrel-side end plate 42nd connected is. The mandrel-side anchoring bracket 44 wraps around the mandrel beam 60 in its loop portion substantially positive fit. The provided for anchoring in the concrete end portions 44a, 44b of the mandrel-side anchoring bracket extend away from the mandrel-side end plate 42.

Description

Technical area

The present invention relates to a device for connecting two components separated by a joint and for absorbing transverse forces occurring between the components.

State of the art

Transverse force mandrels are connection and pressure distribution elements for two in the same plane running concrete components, which are separated from each other by a joint.

Querkraftdorne are known from the prior art, which allow relative movements of building parts in only one direction, but also mandrels, which allow a relative movement in two directions. At the in 1 The first case shown anchored in a first part of the building, usually cylindrical shear force dowels 1 from a concentric, anchored in the second part of the building cylindrical sleeve 2 added. With the reference number 4 Holes are called, which serve the attachment of the sleeve to the formwork by nails or screws. The thorn 1 can only along the longitudinal axis of the cylindrical sleeve 2 move, whereby movements in only one direction (a-direction) are possible.

If movements in two directions are to be allowed, then the cylindrical mandrel becomes 1 as in 2 represented for example by a trained as a hollow cuboid sleeve 3 taken, the expansion of the sleeve 3 in c-direction substantially the diameter of the mandrel 1 equivalent. In this case, the thorn 1 on the one hand in the direction of its longitudinal axis (a-direction) penetrate into the sleeve, but it is also horizontal movements of the mandrel perpendicular to its longitudinal axis (b-direction) possible.

From the EP 119 652 A2 is known a transverse force mandrel bearing, which consists of a shear force mandrel, a shear force mandrel bearing sleeve and a bearing sleeve and the mandrel bearing basket. Further, a laterally arranged to be bridged joint gap face plate in the form of four cross tabs is provided. This face plate is used to fix the shear force mandrel bearing sleeve to a shuttering during the preparation of the concrete slab, in which the bearing sleeve is poured. The storage basket consists of a number of closed loops of reinforcing steel wires with an inwardly bent hook in which the sleeve is located. The loops are thus in planes parallel to the plane of the face plate and parallel to the direction of the joint.

The EP 193 494 A1 describes a transverse force mandrel storage, in which the holder of the shear force mandrel bearing sleeve is independent of the storage basket. For this purpose, a mounting shoe is attached to an end formwork, in which a front plate, which is fixedly connected to the Querkraftdornhülse, can be inserted. At the closed end of the Querkraftdornlagerhülse a height-adjustable support rod is provided, which guarantees a correct mounting of the bearing sleeve during Einbetonierens. Again, the face plate has only a holding function during Einbetonierens. The independent storage basket has corresponding steel rings in which on the one hand the sleeve and on the other hand the transverse force mandrel are mounted.

A connection and pressure distribution element for two by a joint separate concrete components is in the EP 554 483 A1 described. The element has a joint bolt bridging the joint, a sliding sleeve, a bracket element associated with the connecting bolt, a second bracket element associated with the sliding sleeve and a retaining plate for the sliding sleeve.

From the EP 814 213 B1 is a Querkraftdornlagerung consisting of a transverse force mandrel, a Querkraftdornlagerhülse and a bearing sleeve holding bearing basket known. Both sides of the joint gap to be bridged face plates are arranged stainless steel, each forming together with a band of stainless steel arranged perpendicular to the direction of the joint, forming a storage basket loop. In each case, an end plate together with a steel strip in a side view approximately trapezoidal loop whose base is formed by the face plate.

Despite these diverse, known from the prior art solutions, there is a need for statically well resilient and produced with the lowest possible cost of materials connection and pressure distribution elements for concrete components.

Presentation of the invention

This is where the invention starts. It should be made available a device for connecting two components separated by a joint and for receiving transverse forces occurring between the components, which has a good static load capacity and can be produced at the same time with a relatively low cost of materials. This object is achieved by the device for connecting two separate components by a joint and for receiving occurring between the components transverse forces according to independent claim 1. Further advantageous aspects, details and embodiments of Invention will become apparent from the dependent claims, the description and the drawings.

The device according to the invention for connecting two components separated by a joint and for absorbing transverse forces occurring between the components comprises a mandrel, a sleeve, at least two end plates arranged on both sides of the joint to be bridged, namely a mandrel-side front plate and a sleeve-side end plate, a mandrel cross member and at least one arbor-side anchoring bracket. The mandrel-side anchoring bracket has a loop portion and two end portions, wherein the anchoring bracket is firmly connected to the side facing away from the joint of the mandrel-side end plate with the mandrel-side end plate. The mandrel-side anchoring strap wraps in its loop portion, the mandrel cross-member substantially positive fit. The provided for anchoring in the concrete end portions of the mandrel-side anchoring bracket extend away from the mandrel side face plate.

The device according to the invention has a significantly improved static load capacity compared to the solutions known from the prior art. At the same time, the device according to the invention can be produced with a comparatively low cost of materials. The mandrel spreader has a diameter that allows a simple reinforcing bar to bend so far that it wraps around the mandrel traverse substantially form-fitting manner. The mandrel can be firmly connected to the mandrel, in particular welded or glued. But it can also be placed around the spike without a firm connection.

When setting in concrete of the device according to the invention, the two end plates are attached to the formwork of the respective component in a conventional manner, in particular nailed or screwed. For easier handling, corresponding bores are usually provided in the end plates. Through these holes a nail or a screw is guided in each case and fixes the device in this way to the formwork.

The face plates are made of a corrosion-resistant material. Usually, the end plates are made of stainless steel, but they can also be made of plastic.

In its most general form, the device according to the invention is suitable for the connection of two components, of which only one component is statically loaded in a predetermined direction. This is the case, for example, when connecting a stair landing to a wall. Sleeve and sleeve-side end plate are installed in this embodiment in the wall, while mandrel, mandrel-side face plate, mandrel and thorn-side anchoring bracket are embedded in the stair landing. The stair landing is statically loaded only in a predetermined direction. The resulting shear forces are introduced via the mandrel-side anchoring bracket in the concrete of the landing.

Advantageously, the mandrel-side anchoring bracket with the mandrel-side end plate is connected such that its loop portion is oriented relative to an imaginary, provided by the anchoring in the concrete end portions of the mandrel-side anchoring bracket plane, in the direction of the static load of the component, in the mandrel, mandrel-side end plate , Dorntraverse and mandrel-side anchoring bracket are installed. Thus acts a vertically downward force on the component, so the loop portion is below the plane defined by the two end portions of the mandrel-side anchoring bracket plane. The load acting vertically downwards on the component is thus introduced upwards into the component.

According to a preferred embodiment, the device additionally comprises a sleeve cross-member and at least one sleeve-side anchoring bracket comprising a loop portion and two end portions. The sleeve-side anchoring bracket is firmly connected to the side facing away from the joint of the sleeve-side end plate with the sleeve-side end plate and wraps in its loop portion, the sleeve cross-member substantially positive fit. The provided for anchoring in concrete end portions of the sleeve-side anchoring bracket extend away from the sleeve-side end plate.

The sleeve crosspiece can be firmly connected to the sleeve, in particular welded or glued. But it can also be placed around the sleeve without a firm connection.

In this embodiment, the device according to the present invention is suitable for the connection of two components, both of which are statically loaded in each case in a predetermined direction. This is the case, for example, when connecting two concrete slabs in road construction. Sleeve, sleeve-side end plate, sleeve cross-member and sleeve-side anchoring bracket are installed in one of the two concrete slabs, while mandrel, mandrel-side face plate, mandrel crossbar and mandrel-side anchoring bracket are embedded in second concrete slab. Both concrete slabs are statically loaded exclusively in a predetermined direction. The resulting shear forces are introduced via the anchoring brackets in the concrete of the two plates.

Advantageously, the sleeve-side anchoring bracket with the sleeve-side end plate is connected such that its loop portion is oriented relative to an imaginary, provided by the anchoring in the concrete end portions of the sleeve side anchoring bracket plane oriented in the direction of the static load of the component, in the sleeve, sleeve-side face plate , Sleeve cross-member and sleeve-side anchoring bracket are installed. Thus acts a vertically downward force on the component, so the loop portion is below the plane defined by the two end portions of the sleeve-side anchoring bracket plane. The load acting vertically downwards on the component is thus introduced upwards into the component.

Particularly preferably, both the mandrel-side anchoring brackets and the sleeve-side anchoring brackets are installed in the orientation described.

According to a particularly preferred embodiment, the device comprises two fixedly on the side facing away from the joint of the mandrel-side end plate with the mandrel-side end plate anchoring bracket. The two mandrel-side anchoring brackets entwine in their loop sections, the mandrel cross-member substantially positive fit, wherein the two mandrel-side anchoring brackets are guided in opposite directions to each other around the mandrel crossbar.

Particularly preferably, the end sections of the two mandrel-side anchoring brackets extend away from the mandrel-side end plate and essentially parallel to one another. The end sections lead in this case particularly far into the in-situ concrete and thus ensure a secure anchoring.

In this embodiment, the device according to the present invention is suitable for the connection of two components, of which one component is statically loaded exclusively in a predetermined direction, while the second component can be subjected to static loads in two opposite directions. Sleeve, sleeve-side face plate, sleeve cross-member and sleeve-side anchor bracket are installed in the component, which is statically loaded only in one direction, while mandrel, mandrel-side face plate, mandrel and the two mandrel-side anchoring brackets are embedded in the second component, which static in two opposite directions Loads can be exposed. The lateral forces occurring during a static load are introduced via the anchoring brackets in the concrete of the two components.

Preferably, the two mandrel-side anchoring brackets are oriented in opposite directions, d. H. the loop portions of the two anchoring brackets are connected at opposite sides of the mandrel with the mandrel-side end plate. Static loads of the corresponding component can be introduced particularly well into the component in such an orientation of the mandrel-side anchoring bracket.

According to a particularly preferred embodiment, the device additionally or alternatively comprises two firmly anchored to the side facing away from the joint of the sleeve-side end plate with the sleeve-side end plate anchoring bracket. The two sleeve-side anchoring brackets wrap around the sleeve cross-member substantially in a form-fitting manner in their loop sections, wherein the two sleeve-side anchoring brackets are guided in opposite directions to each other around the sleeve crosspiece.

Particularly preferably, the end sections of the two sleeve-side anchoring brackets extend away from the sleeve-side end plate and essentially parallel to one another. The end sections lead in this case particularly far into the in-situ concrete and thus ensure a secure anchoring.

In an embodiment in which both two arbor-side anchoring brackets are provided as two sleeve-side anchoring brackets, the device according to the present invention is suitable for the connection of two components, both of which are statically loaded in two mutually opposite directions.

Particularly preferably, both the two arm-side anchoring brackets as well as the two sleeve-side anchoring brackets are oriented in opposite directions, d. H. the loop portions of the two mandrel anchoring brackets are connected at opposite sides of the mandrel with the mandrel side end plate and the loop portions of the two sleeve side anchoring brackets are connected at opposite sides of the sleeve with the sleeve side end plate. In any direction occurring static loads of the corresponding component can be introduced particularly well in the component in such an orientation of the anchoring bracket.

Preferably, the mandrel is designed as a solid cylinder and the mandrel traverse as a hollow cylinder. A trained as a solid cylinder mandrel can be equipped in a particularly simple manner with a mandrel formed as a hollow cylinder. Advantageously, the inner diameter of the mandrel spreader is only slightly larger than the outer diameter of the mandrel. The mandrel spreader can then, if necessary, firmly connected to the mandrel, preferably welded, become.

Also preferred are embodiments according to which additionally or alternatively, the sleeve and the sleeve cross member are formed as a hollow cylinder. A trained as a hollow cylinder sleeve can accommodate a trained as a solid cylinder mandrel in a particularly simple manner. Advantageously, the inner diameter of the sleeve is only slightly larger than the outer diameter of the mandrel. In addition, a sleeve formed as a hollow cylinder can be equipped in a particularly simple manner with a trained as a hollow cylinder sleeve crossmember. Advantageously, the inner diameter of the sleeve cross-member is only slightly larger than the outer diameter of the sleeve. The sleeve cross-piece can then be connected in a simple manner, if necessary, firmly with the sleeve, preferably welded.

Embodiments, according to which a sleeve designed as a hollow cylinder receives a mandrel formed as a solid cylinder, allow relative movements of building parts in only one direction.

If movements in two directions are to be allowed, the cylindrical mandrel is received by a sleeve designed as a hollow cuboid, wherein the extension of the sleeve in one direction substantially corresponds to the diameter of the mandrel. In this case, the mandrel may penetrate into the sleeve in the direction of its longitudinal axis, but horizontal movements of the mandrel perpendicular to its longitudinal axis are also possible. In such a likewise preferred embodiment, the sleeve is formed as a hollow cuboid. In order to ensure an initiation of the transverse forces occurring in the components, the sleeve is equipped with a sleeve cross-member in this case, which is then looped around by the sleeve-side anchoring bracket or the sleeve-side anchoring brackets. In order to achieve a suitable contact surface to the anchoring brackets, the sleeve cross-piece is formed in this case in the form of two cylindrical sections.

Preferably, mandrel cross member and / or sleeve cross member made of a corrosion-resistant material, preferably made of stainless steel or galvanized black steel. By the materials mentioned corrosion problems that occur again and again in the area of joints, can be completely avoided.

Particularly preferably mandrel cross member and / or sleeve cross-piece are welded or glued to the mandrel and / or with the sleeve. The mentioned types of fastening ensure a secure and permanent connection of mandrel and mandrel cross member or sleeve and sleeve cross-member.

Brief description of the drawings

The invention will be explained in more detail with reference to embodiments in conjunction with the drawings. It is expressly understood, however, that the invention should not be limited to the examples given. Show it

1 a cylindrical mandrel with a cylindrical sleeve (prior art);

2 a cylindrical mandrel with a rectangular sleeve (prior art);

3A a structural steel rod;

3B the once bent to form a loop wire rod of the 3A ;

3C the twice bent to form an anchor bracket steel rod of the 3A ;

4 an embodiment of the device according to the present invention in perspective view;

5 a section through the device of 4 with the cutting plane VV;

6 a section through the device of 4 with the cutting plane VI-VI;

7a a perspective view of a formed as a solid cylinder mandrel with a designed as a hollow mandrel spreader;

7b a perspective view of a trained as a hollow cuboid sleeve with a trained in the form of two cylinder sections sleeve crossmember.

Ways to carry out the invention

The 3A to 3C illustrate the preparation of an anchoring bracket according to the present invention by double bending a structural steel rod 30 (please refer 3A ). The steel rod is first bent once so that the two sections of the rod are substantially parallel to each other and the free ends of the steel rod come to lie flush next to each other (see 3B ). The ends of the steel rod opposite thereby creates a loop-shaped area, for a loop portion 10 can be defined. This looped, the ends of the Steel bar opposite area is then bent a second time (see 1C ). The double-curved steel bar provides an anchoring bracket 8th according to the present invention, wherein the anchoring bracket 8th in his loop section 10 firmly connected to a face plate.

The 4 shows a device according to the invention for connecting two components separated by a joint and for receiving transverse forces occurring between the components. The device comprises a spike 40 , a sleeve 41 , two on both sides of the gap to be bridged arranged face plates 42 . 43 made of corrosion-resistant material, namely a mandrel-side end plate 42 and a sleeve-side face plate 43 , a mandrel spreader (not shown) integral with the mandrel and two arbor-side anchoring brackets 44 . 45 each having a loop portion (not shown) and two end portions 44a . 44b . 45a . 45b , wherein the mandrel-side anchoring bracket fixed to the side facing away from the joint of the mandrel-side face plate 42 with the spine-side face plate 42 are connected. The arbor-side anchoring brackets 44 . 45 wrapped around in their loop sections, the mandrel cross-member substantially positive fit. The two arbor-side anchoring brackets 44 . 45 are guided in opposite directions to each other around the mandrel. The intended for anchoring in concrete end sections 44a . 44b . 45a . 45b the arbor-side anchoring bracket 44 . 45 are substantially parallel to each other from the mandrel side face plate 42 path.

In the 4 shown device additionally has a fixed to the sleeve 41 connected sleeve crossbeam 46 and two sleeve-side anchoring brackets 47 . 48 on. The two sleeve-side anchoring brackets 47 . 48 each comprise a loop portion 49 . 50 and two end sections 47a . 47b . 48a . 48b , wherein the sleeve-side anchoring bracket 47 . 48 firmly on the side facing away from the joint of the sleeve-side face plate 43 with the sleeve-side face plate 43 are connected. The sleeve-side anchoring brackets 47 . 48 wrap around in their loop sections 49 . 50 the sleeve crossbeam 46 essentially positive. The two sleeve-side anchoring brackets 47 . 48 are guided in opposite directions to each other around the sleeve crosspiece. The intended for anchoring in concrete end sections 47a . 47b . 48a . 48b the sleeve-side anchoring bracket 47 . 48 are substantially parallel to each other from the sleeve-side end plate 43 path.

In 5 is a section through the device according to 4 shown with the section plane VV. Shown is formed as a solid cylinder mandrel 40 , the mandrel crossbar 60 as well as the two arbor side anchoring brackets 44 . 45 , The anchoring brackets 44 . 45 each have a loop section 10 on and wrap around the mandrel 60 in the area of their loop sections 10 essentially positive.

In 6 is a section through the device according to 4 represented by the section plane VI-VI. Shown is formed as a hollow cylinder sleeve 41 , the sleeve crossbeam 46 , the two sleeve-side anchoring brackets 47 . 48 and the sleeve-side face plate 43 ,

7a shows a perspective view of a formed as a solid cylinder mandrel 40 with a trained as a hollow cylinder mandrel crossmember 60 ,

7b Finally, shows a perspective view of a trained as a hollow cuboid sleeve 70 with one in the form of two cylinder sections 80a . 80b trained sleeve traverse.

LIST OF REFERENCE NUMBERS

1

cylindrical shear force mandrel

2

cylindrical sleeve

3

formed as a hollow cuboid sleeve

4

drilling

8th

anchor bracket

10

loop portion

30

structural steel rod

40

mandrel

41

shell

42

spine-side face plate

43

sleeve-side face plate

44, 45

arbor-side anchoring brackets

44a, 44b

End portions of the mandrel-side anchoring bracket 44

45a, 45b

End portions of the mandrel-side anchoring bracket 45

46

Traverse sleeve

47, 48

sleeve-side anchoring bracket

47a, 47b

End portions of the sleeve-side anchoring bracket 47

48a, 48b

End portions of the sleeve-side anchoring bracket 48

49, 50

Loop sections of the sleeve-side anchoring brackets

60

Dorn Traverse

70

shell

80a, 80b

cylinder sections

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 119652 A2 [0005]
• EP 193494 A1 [0006]
• EP 554483 A1 [0007]
• EP 814213 B1 [0008]

Claims (11)

Device for connecting two components separated by a joint and for absorbing transverse forces occurring between the components, comprising a mandrel ( 40 ), a sleeve ( 41 ), at least two on both sides of the gap to be bridged arranged end plates ( 42 . 43 ), namely a spine-side end plate ( 42 ) and a sleeve-side end plate ( 43 ), a mandrel crossbar ( 60 ) and at least one arbor-side anchoring bracket ( 44 ) comprising a loop portion 10 and two end sections ( 44a . 44b ), wherein the arbor-side anchoring bracket ( 44 ) fixed to the side facing away from the joint of the mandrel-side face plate ( 42 ) with the spine-side face plate ( 42 ), the mandrel-side anchoring bracket ( 44 ) in its loop section 10 the mandrel crossbar ( 60 ) wraps around in a substantially positive fit and provided for anchoring in the concrete end sections ( 44a . 44b ) of the mandrel-side anchoring bracket ( 44 ) from the spine-side face plate ( 42 ) run away. Device according to claim 1, characterized in that the device additionally comprises a sleeve cross-section ( 46 ) and at least one sleeve-side anchoring bracket ( 47 ) comprising a loop portion ( 49 ) and two end sections ( 47a . 47b ), wherein the sleeve-side anchoring bracket ( 47 ) fixed to the side facing away from the joint of the sleeve-side face plate ( 43 ) with the sleeve-side end plate ( 43 ), the sleeve-side anchoring bracket ( 47 ) in its loop section ( 49 ) the sleeve crossbeam ( 46 ) wraps around in a substantially positive fit and provided for anchoring in the concrete end sections ( 47a . 47b ) of the sleeve-side anchoring bracket ( 47 ) of the sleeve-side face plate ( 43 ) run away. Apparatus according to claim 1 or 2, characterized in that the device has two fixedly facing away from the joint side of the mandrel-side end plate ( 42 ) with the spine-side face plate ( 42 ) anchoring brackets ( 44 . 45 ), the two arbor-side anchoring brackets ( 44 . 45 ) in their loop sections the mandrel cross-piece ( 60 ) wrap around substantially form-fitting manner, wherein the two mandrel-side anchoring brackets ( 44 . 45 ) in opposite directions to each other around the mandrel crossbar ( 60 ) are guided. Device according to claim 3, characterized in that the end sections ( 44a . 44b . 45a . 45b ) of the two mandrel anchoring brackets ( 44 . 45 ) from the spine-side face plate ( 42 ) and substantially parallel to each other. Device according to one of the preceding claims, characterized in that the device has two fixedly facing away from the joint side of the sleeve-side end plate ( 43 ) with the sleeve-side end plate ( 43 ) anchoring brackets ( 47 . 48 ), the two sleeve-side anchoring brackets ( 47 . 48 ) in their loop sections ( 49 . 50 ) the sleeve crossbeam ( 46 ) wrap around substantially form-fitting manner, wherein the two sleeve-side anchoring bracket ( 47 . 48 ) in opposite directions to each other around the sleeve crossbeam ( 46 ) are guided. Device according to claim 5, characterized in that the end sections ( 47a . 47b . 48a . 48b ) of the two sleeve-side anchoring brackets ( 47 . 48 ) of the sleeve-side face plate ( 43 ) and substantially parallel to each other. Device according to one of the preceding claims, characterized in that the mandrel ( 40 ) as a solid cylinder and the mandrel crossbar ( 60 ) are formed as a hollow cylinder. Device according to one of the preceding claims, characterized in that the sleeve ( 41 ) and the sleeve crossbeam ( 46 ) are formed as a hollow cylinder. Device according to one of claims 1 to 7, characterized in that the sleeve ( 41 ) as a hollow cuboid ( 70 ) and the sleeve crossbeam ( 46 ) in the form of two cylindrical sections ( 80a . 80b ) is trained. Device according to one of the preceding claims, characterized in that mandrel traverse ( 60 ) and / or sleeve crossbeam ( 46 ) made of a corrosion-resistant material, preferably made of stainless steel or galvanized black steel. Device according to one of the preceding claims, characterized in that mandrel traverse ( 60 ) and / or sleeve crossbeam ( 46 ) with the thorn ( 40 ) and / or with the sleeve ( 41 ) are welded or glued.

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