EP3640406A1 - Bearing device - Google Patents

Abstract

The invention relates to a bearing device (10) for supporting a first structural part (12) on a second structural part (14) in at least one transverse direction (1), comprising a sleeve (16) which can be firmly inserted in the first structural part (12), and a the second structural part (14) of a mandrel (18) which can be firmly joined, the mandrel (18) being mounted in the sleeve (16) for receiving the transverse force (Q). It is proposed that a surface load distribution means (20) is arranged inside the sleeve (16), on which the mandrel (18) is mounted in the transverse direction (1).

Description

The invention relates to a bearing device for supporting a first structural part on a second structural part, comprising a sleeve which can be anchored in or on the first structural part and a mandrel which can be anchored in or on the second structural part and which receives in a transverse direction to receive a component caused by a relative movement of the structural parts transverse force directed towards the mandrel is supported in the sleeve, the mandrel being displaceable in the longitudinal direction in the sleeve, according to the preamble of claim 1.

Expansion joints in a building are deliberately produced joints that serve to interrupt larger buildings in order to avoid the risk of cracking due to shrinkage, expansion, setting or other, in particular thermal, changes. Two building parts running in the same plane, usually concrete parts, which are separated from one another by such a joint, are often equipped with bearing devices, such as transverse force mandrels, as connection and pressure distribution elements. Shear force mandrels on the one hand prevent a concrete part from sinking relative to the neighboring concrete part and, on the other hand, absorb the linear expansion of the concrete parts due to their movable mandrels.

The known bearing devices comprise a sleeve and a (transverse force) mandrel that can be displaced in the sleeve in the longitudinal direction of the sleeve. The mandrel and the sleeve are anchored in the structural parts, preferably cast in for concrete parts. The structural parts can thus support each other in a transverse direction through the bearing device. For example, by means of such a storage device on a house wall, a balcony can counteract the acceleration of gravity, i.e. are supported against the direction of gravity.

So that the expansion joint can perform its function of decoupling the structural parts from one another, the bearing device can be provided with an additional degree of freedom provide a sliding bearing of the mandrel in the sleeve so that the mandrel is displaceable in the lateral direction perpendicular to its longitudinal direction within the sleeve. However, the mandrel lies directly on a wall of the sleeve. Since the structural parts cause high forces on the bearing device due to their mass, large forces act on the contact surface between the mandrel and the wall of the sleeve, which in turn lead to high stresses in the respective materials. If, for example, a balcony is made from a reinforced concrete slab or a steel structure, it has a high weight, which must be supported against the direction of gravity by the wall and the mandrel. The mandrel is usually provided with a circular cross section and the wall is designed as a surface or plane oriented perpendicular to the acting forces. If a cylindrical mandrel with a circular cross section lies against such a plane, the common contact area is ideally only one line. If the transverse forces generated by the structural parts act on this contact area, the materials in the area of the line are crushed, combined with high mechanical tension. The high tension leads to a so-called Hertzian pressure on the mandrel and on the wall of the sleeve and thereby to abrasion and finally to damage, in particular to the wall of the sleeve. This can lead to a complete destruction of the wall, so that over time the mandrel rests on the material of the structural part carrying the sleeve and the bearing device therefore no longer fulfills its supporting function or only incompletely. These problems are not solved by the bearing devices proposed in the prior art.

For example, it teaches DE 10 2008 055 523 B3 a bearing device for forming a non-positive connection between a prefabricated reinforced concrete component and a second component. The second component is equipped with a mandrel and a sleeve which is mounted essentially concentrically on the mandrel. The prefabricated reinforced concrete component has a cladding tube for receiving the sleeve and the mandrel, the sleeve comprising a device for fixing the mandrel in position. The mandrel is fixed in the sleeve during the manufacture of the structural parts made of concrete by chambers and their partitions in the transverse and horizontal directions. When the structural parts are completed, high forces occur in the bearing device taught here, so that the chambers can be destroyed and the mandrel ultimately in the normal operating state of the bearing device rests directly on the wall of the sleeve. This in turn gives rise to the problems known from the prior art and discussed above, as a result of which the service life of such a bearing device in particular is relatively short.

Furthermore, the DE 89 011 17 U1 a bearing device for receiving a transverse force mandrel with a rectangular sleeve body which is open on the end face and which encloses a transverse force mandrel which is equipped for a sliding movement and is cylindrical in a specific variant. Printed circuit boards are provided in the location device in guide grooves on which the mandrel rests. In addition, the mandrel is supported in lateral guides provided with radii of curvature. As a result, part of the forces are deflected from the transverse walls of the sleeve, but such a mandrel no longer has a degree of freedom in the horizontal direction. In addition, the entire structure has a complicated structure and is therefore difficult to manufacture and assemble. Furthermore, the mandrel acts with its full force on the walls of the sleeve in the event of a failure of the lateral guides. Therefore, this document cannot easily solve the problem of the short service life of the prior art bearing devices.

Although the known storage devices fulfill their function, the area of the storage devices still offers room for improvement.

The invention is based on the object of providing a simply constructed bearing device which, with corresponding cost advantages in manufacture, has a high level of robustness with respect to Hertzian pressures and thus has an extended service life.

According to the invention, the object is achieved by a bearing device with the features of claim 1 and by an arrangement of such a bearing device, a first structural part and a second structural part with the features of claim 21. Advantageous refinements and developments of the invention result from the dependent claims.

It should be pointed out that the features and measures listed individually in the following description can be combined with one another in any technically meaningful manner and further refinements of the invention point out. The description additionally characterizes and specifies the invention, in particular in connection with the figures.

The bearing device according to the invention for supporting a first structural part on a second structural part comprises a sleeve anchored or anchored in the first structural part and a mandrel anchored or anchored in the second structural part. The mandrel is designed to receive a component that is generated by the structural parts or their relative movement and is transverse to the mandrel, i.e. transverse force acting in the transverse direction of the mandrel is supported in the sleeve (in particular supported and / or clamped). The mandrel can be displaced in the sleeve at least in a longitudinal direction and preferably also transversely thereto (laterally). Due to the degree of freedom in the longitudinal direction and, if appropriate, the further degree of freedom mentioned later, a relative movement of the building parts to one another is possible without damage to the building parts or in the positioning device becoming apparent. If the building parts are separated from one another by an expansion joint, this expansion joint can be bridged by the position device, the building parts being supported in at least one direction along the plane of the expansion joint. This direction represents the transverse direction. Perpendicular to the plane of the expansion joint, movement of the structural parts relative to one another is possible at least in the longitudinal direction of the sleeve, so that the width of the expansion joint can be varied.

According to the invention, it is now proposed to arrange a surface load distribution means within the sleeve, against which the mandrel bears in the transverse direction for support. The transverse force is introduced into the surface load distribution means and distributed to the wall on a surface of the surface load distribution means facing away from the mandrel and abutting a wall of the sleeve. As a result, the transverse force can be distributed over an enlarged area and a punctiform or linear load on the wall of the sleeve can be avoided. In this way, excessive Hertzian pressure and the resulting damage to the bearing device are avoided.

Advantageously, the area of the surface load distribution means, which rests on the wall, is larger than a contact area which would arise if the mandrel were supported directly on the wall, as is the case in the prior art. In other words: the surface lying against a wall of the sleeve is larger than a contact area between the mandrel and the area load distribution means. If the area load distribution means were not provided in the sleeve, there would be a punctiform or line-like contact area between the mandrel and the wall, which would inevitably lead to damage to the wall. The transverse force is distributed on the surface by the surface load distribution means, so that a mechanical stress in the materials of the wall and the surface load distribution means is lower than when the mandrel comes into direct contact with the wall. The mechanical tension is characterized by a force per unit area. If the transverse force is introduced via a contact surface between the mandrel and the surface load distribution means, which is, for example, linear or punctiform, a high mechanical tension is formed between the surface load distribution means and the mandrel. However, the surface load distribution means can be designed to be appropriately robust, and preferably has a greater material thickness in the transverse direction than the wall of the sleeve. In particular, the material thickness of the surface load distribution means in the area of the contact surface between the mandrel and surface load distribution means is greater than a thickness of the wall. The shear force introduced via the contact surface is transmitted to the anchorage of the sleeve or the structural part via the surface of the surface load distribution means lying against a wall of the sleeve. A reverse force curve is also conceivable, in which a force is directed over the surface onto the robust surface load distribution means and over the contact surface onto the mandrel. Regardless of the direction of the force curve, the wall is protected by the surface load distribution means.

In a special development, the surface of the surface load distribution means can be directed downward in the assembled state of the bearing device in the direction of gravity, ie in the direction of gravitational acceleration or gravity. If a mandrel now rests on the surface load distribution means, a downward transverse force of the second structural part can be supported on the surface load distribution means. In such a case, the transverse direction is directed downwards in the direction of gravity. The transverse force is thus distributed over a wall arranged on the lower section of the sleeve (in the assembled state). Alternatively, it is possible to arrange the surface load distribution means on a wall in an upper section of the sleeve with respect to the direction of gravity, so that the first structural part is supported on the mandrel via the sleeve. The surface is directed upwards. Also an arrangement both Above and below is possible to cover both installation situations. Another alternative includes that the face load distribution means abuts a side portion of the sleeve with respect to the earth's gravity direction so that forces that are transverse to the earth's gravity direction are introduced into the face load distribution means. The forces can act on the surface load distribution means via the mandrel and / or the sleeve. Due to these diverse possibilities of arranging the surface load distribution means around the longitudinal direction of the mandrel, complicated building structures can be supported by the bearing device according to the invention.

Another development of the invention provides that small depressions are preferably arranged in the surface of the surface load distribution means and / or in the wall or wall surface on which the surface load distribution means is in contact. In this context, "small" means that a dimension (depth and / or diameter) of the depressions is significantly smaller than a dimension of the surface (s) mentioned, for example by a factor of 10 to 100. These depressions can be hemispherical or partially spherical, be cup-shaped or in any other suitable manner. They can all be of the same or (partially) different shapes. They can be arranged evenly or irregularly. In component tests by the applicant it has been shown that such depressions on the surface between the sleeve wall and the load distribution element improve the lubrication when sliding and thus in particular extend the life of the components.

It can be expediently provided that the sleeve has a rectangular cross section with a corresponding number of straight walls. In a mounted state of the bearing device, a straight wall of the sleeve is preferably aligned horizontally with respect to the direction of gravity. The surface of the surface load distribution means can rest against this wall and support the transverse force. The horizontal wall can be arranged above or below in the direction of gravity. Alternatively, the surface can rest against a straight wall that extends vertically along or parallel to the direction of gravity. Such a vertical wall is arranged laterally in the sleeve. In a particular alternative, the surface load distribution means can slide with the surface on the straight wall in a lateral direction. With a horizontal wall, the surface load distribution means can be in the horizontal direction slide on the wall, while vertical sliding of the surface load distribution means is possible with a vertical wall. In addition, sliding in the longitudinal direction of the mandrel is possible.

In principle, the bearing device can also have more than one surface load distribution means.

In order to ensure a particularly stable mounting of the mandrel, the surface load distribution means can have a recess facing the mandrel, in which the mandrel is mounted. As a result, the mandrel can better carry the surface load distribution means with it when it moves within the sleeve in a lateral direction, since a surface of the recess lies against the mandrel in the lateral direction. Furthermore, the contact area can be increased compared to a simple line support in the case of a plate-shaped load distribution means without a recess. The recess is preferably provided on a side of the surface load distribution means opposite the surface lying against the wall. The course of force between the sleeve and the mandrel passes through the recess through the surface load distribution means to the surface of the surface load distribution means lying against the wall of the sleeve. Conversely, a recess in the mandrel can be designed, into which an elevation formed on the surface load distribution means projects, wherein the recess in the mandrel can have the same effect as the recess in the surface load distribution means. The formation of a recess in the mandrel and an elevation on the surface load distribution means is only a reversal of the shapes.

The mandrel can be slidably mounted in the longitudinal direction in the recess in order to provide a corresponding degree of freedom of expansion.

A special embodiment can include that the recess has a single contact surface, which preferably extends over the entire recess, the recess in particular having a rounded or part-circular contour. A single contact surface can thus be achieved in particular if a cross section of the recess is formed with respect to the longitudinal direction of the sleeve, which has at least one round section. If the mandrel now also has a cross section with in particular a round section, the round section of the mandrel can be in the round section of the surface load distribution means interact in a flat manner. As a result, the advantageous effect of a recess, which is entraining in the lateral direction, is maintained and, at the same time, a contact surface is formed which extends well beyond the size of a line contact. The individual contact surface can preferably extend over an entire width of the recess. It can be provided that the recess has a rounded or part-circular contour. A particularly simply designed and yet very efficient surface load distribution means can include a recess, in particular U-shaped in cross section. Furthermore, the recess can have a section parallel to the surface against which the mandrel rests.

A further alternative embodiment can be designed by a recess with at least two contact surfaces between the mandrel and the surface load distribution means. For this purpose, at least two sections of the cross section of the recess are inclined with respect to the transverse direction, so that the recess is preferably approximately V-shaped. The mandrel lies against the inclined sections and forms contact surfaces. In an alternative embodiment, three or more contact areas can be formed. Furthermore, a section of the recess can be formed parallel to the surface abutting a wall of the sleeve, so that, for example, two sections of the recess which are inclined to the transverse direction bear against the mandrel, while the parallel section of the recess is positioned between the inclined sections. The diverse design options of the recess offer the possibility of adapting the surface load distribution means to a wide variety of requirements.

The mandrel can be supported particularly gently if the surface load distribution means is prism-shaped or profile-like, the recess extending in the longitudinal direction along the mandrel. As a result, the entire mandrel can be stored in the recess. The mandrel can protrude into the sleeve in particular to a length of about 30 cm. Furthermore, the mandrel can also be shorter or longer. The contact surfaces within the recess can be interrupted along the longitudinal direction. For this purpose, depressions can be formed in the surface of the recess, so that a region of the surface is spaced from the mandrel and has no contact with it. In this way, pockets can be formed in the surface of the recess.

The pockets can be filled with a lubricant such as grease, oil, copper, aluminum, graphite or another lubricant. The lubricant facilitates a relative movement in the longitudinal direction of the mandrel to the surface load distribution means within the recess.

The surface load distribution means can have a width in a lateral direction, that is to say perpendicular to the transverse direction and perpendicular to the longitudinal direction, which is less than or equal to a dimension of the mandrel, especially its diameter, in this direction. This does not interfere with movement of the mandrel with the surface load distribution means in the horizontal direction. Alternatively, the surface load distribution means can extend beyond the dimension of the mandrel in the direction mentioned, so that horizontal movement is restricted. The same applies to a surface distribution means oriented in the vertical direction.

The surface load distribution means can preferably be designed symmetrically with respect to the transverse direction. If the mandrel has an in particular circular cross section, an axis of symmetry of the mandrel can coincide with the axis of symmetry of the surface load distribution means. For example, when the surface load distribution means rests on a horizontal wall of the sleeve, an axis of symmetry can be aligned in the direction of gravity, a vertically running diameter of the mandrel being aligned with the axis of symmetry of the surface load distribution means. This ensures an even force curve from the mandrel into the surface load distribution means and finally to the sleeve.

For a displacement of the mandrel in the longitudinal direction of the sleeve, both a sliding bearing of the mandrel in the recess and the surface of the surface load distribution means can be provided on the wall. For this purpose, the mandrel is inserted into the recess without being connected to the surface load distribution means in a force-locking or material-locking manner. Furthermore, the surface of the surface load distribution means lies against the wall without being rigidly connected to it. This ensures a double possibility for moving the mandrel in the longitudinal direction. A corresponding embodiment of the bearing device provides that the surface load distribution means can be displaced on the wall of the sleeve in the longitudinal direction and / or in a lateral direction, perpendicular to the transverse direction and perpendicular to the longitudinal direction.

Alternatively, the surface load distribution means can be displaceable in the lateral direction on the wall, while the mandrel in the recess can preferably not be displaced in the lateral direction.

Another alternative embodiment has a surface load distribution means rigidly connected to the wall. Then only the mandrel can be moved in the longitudinal direction to the sleeve. The rigid connection between the surface load distribution means and the wall can be produced cohesively by welding, gluing or soldering or non-positively by screws or rivets.

Again alternatively, the mandrel can be rigidly connected to the surface load distribution means. As a result, a foot-like surface load distribution means which is fixedly connected to the mandrel can rest on the wall and can be displaceably mounted both in the longitudinal direction and in the lateral direction. The surface load distribution means rigidly connected to the mandrel preferably projects radially from the mandrel. Such a surface load distribution means does not require a recess, the surface of which can be exposed to high mechanical stresses in the area of the contact surfaces with the mandrel.

It can be particularly useful to provide the sleeve and / or the mandrel with an anchor or anchor part which is anchored in the respective structural part, e.g. can be concreted. The anchor can also be connected to reinforcement of the building part. The sleeve can be stiffened by struts. Furthermore, the sleeve and / or the mandrel can preferably be formed in (galvanized) steel or in stainless steel or another suitable material (plastic, composite). The mandrel can have a (circular) round or an angular cross section. For example, the cross section can be circular or square or hexagonal (polygonal).

In the case of an arrangement according to the invention comprising a bearing device according to the invention, a first structural part and a second structural part, it is provided that the sleeve in the first structural part and the mandrel in the second structural part are fastened or anchored in a transverse direction in order to bring about a movement of the structural parts absorb effective transverse force to the mandrel, the mandrel being displaceable in a longitudinal direction in the sleeve.

It is particularly advantageous if, in a further development of this arrangement, the sleeve and / or the mandrel are anchored with a respective anchor or anchor part in the respective structural part, preferably cast in or concreted in, as mentioned above.

Fig. 1

eine herkömmliche Lagervorrichtung, die aufgrund einer geringen Kontaktfläche hohe mechanische Spannungen in einer Wandung bis hin zu Zerstörung ausbildet;

Fig. 2

eine Ansicht einer in Bauwerksteilen verankerten erfindungsgemäßen Lagervorrichtung mit einem Flächenlastverteilungsmittel;

Fig. 3

ein Querschnitt durch eine Lagervorrichtung mit einem V-förmigen Flächenlastverteilungsmittel mit zwei Kontaktflächen;

Fig. 4

ein Querschnitt durch eine Lagervorrichtung mit einem U-förmigen Flächenlastverteilungsmittel mit einer durchgehenden Kontaktfläche;

Fig. 5

ein Querschnitt durch eine Lagervorrichtung mit drei Kontaktflächen;

Fig. 6

ein Querschnitt durch eine Lagervorrichtung mit zwei runden Abschnitten in der Ausnehmung; und

Fig. 7

ein Querschnitt durch eine Lagervorrichtung mit einem starr am Dorn angebrachten Flächenlastverteilungsmittel.

Further advantageous embodiments of the invention are disclosed in the following description of the figures. It shows:

Fig. 1

a conventional bearing device, which forms high mechanical stresses in a wall up to destruction due to a small contact area;

Fig. 2

a view of a bearing device according to the invention anchored in structural parts with a surface load distribution means;

Fig. 3

a cross section through a bearing device with a V-shaped surface load distribution means with two contact surfaces;

Fig. 4

a cross section through a bearing device with a U-shaped surface load distribution means with a continuous contact surface;

Fig. 5

a cross section through a bearing device with three contact surfaces;

Fig. 6

a cross section through a bearing device with two round sections in the recess; and

Fig. 7

a cross section through a bearing device with a surface load distribution means rigidly attached to the mandrel.

In the different figures, the same parts are always provided with the same reference symbols, which is why they are usually only described once.

Figure 1 shows a conventional bearing device 10 in cross section in its assembled state. The bearing device 10 comprises an elongated sleeve 16 which has a rectangular cross section. A pin-shaped mandrel 18 with a circular cross section is arranged in the sleeve 16. The sleeve 16 is in a first structural part (in Figure 1 not shown) and the mandrel 18 is in a second structural part (in Figure 1 not shown) anchored. The two structural parts are supported on one another by the bearing device 10. In the mounted state, the bearing device 10 is oriented in the manner shown relative to the direction of the acceleration due to gravity or the direction of gravity 4. Correspondingly, the mandrel 18 rests on a wall 26 of the sleeve 16 oriented in the lateral direction 3. The lateral direction 3 is preferably oriented horizontally and thus transversely to the direction of gravity 4. Furthermore, the mandrel 18 is slidably mounted in the longitudinal direction 2 and in the lateral direction 3. Only in the transverse direction 1 is the mandrel 18 supported by the sleeve 16 or the corresponding structural part and cannot be displaced. With an arrangement according to Figure 1 the mandrel 18 is thus supported in the transverse direction 1 against a transverse force Q which acts downwards in the direction of gravity 4. The wall 26 and a section of the surface of the mandrel 18 resting on the wall 26 form a contact surface 30 which absorbs the transverse force Q in the transverse direction 1. Ideally, the contact area 30 is not an extended area, but merely a contact line. The transverse force Q forms a pinch in the region of the contact line, so that a finite contact surface 30 is created. However, the contact surface 30 has a relatively small expansion in relation to the diameter D of the mandrel 18. The small contact surface 30 creates a high mechanical stress in the material of the wall 26 in the region of the contact surface 30. The mechanical stress results from the transverse force Q distributed over the contact surface 30. This causes damage 17 to the wall 26. The wall 26 can be completely destroyed in the process.

A storage device 10 according to the invention is shown in FIG Figure 2 shown, wherein the bearing device 10 according to the invention is also anchored in a first and second structural part 12, 14. The two structural parts 12, 14 are separated from one another by a joint 13 (expansion joint). The joint 13 is bridged by the mandrel 18, which is anchored in the second structural part 14 by means of an anchor 32. The mandrel 18 protrudes into the elongated sleeve 16 with a section protruding from the second structural part 14. The sleeve 16 is also anchored in the first structural part 12 by means of an anchor 32. The structural parts 12, 14 can be made of reinforced concrete. The mandrel lies in the sleeve 16 18 on a surface load distribution means 20. In this case, the surface load distribution means 20 has a recess 22 which is formed on a side of the surface load distribution means 20 which faces upwards in the direction of gravity 4. The support of the mandrel 18 forms at least one contact surface 30 between the mandrel 18 and surface load distribution means 20 in the recess 22. A surface 24 is formed on an opposite side of the surface load distribution means 20, that is to say it points downward in the direction of gravity 4, and it rests movably in the longitudinal direction 2 and lateral direction 3 on the wall 26 of the sleeve 16. The second building part 14 is supported by the bearing device 10 on or on the first building part 12. The transverse force is directed downward in the direction of gravity 4 and introduces a corresponding supporting or bearing force into the surface load distribution means 20. The transverse force Q is transmitted via the surface load distribution means 20 and via the surface 24 to the wall 26 of the sleeve 16. The shear force Q is distributed over the entire surface 24, so that one compared to the conventional bearing device 10 Figure 1 lower voltage is generated in the wall 26. For example, no or only slight Hertzian pressures occur, since two relatively large, flat surfaces in the form of surface 24 and wall 26 interact.

In the recess 22, the mandrel 18 can perform a sliding movement 5 in the longitudinal direction 2, which changes the dimension of the joint 13 in the longitudinal direction 2. For example, the structural parts 12, 14 can move away from one another so that the mandrel 18 is pulled out of the sleeve 16, but a remaining part of the mandrel 18 always remains in the sleeve 16 and on the surface load distribution means 20. Conversely, the structural parts 12, 14 can move towards one another, as a result of which the mandrel 18 is pushed into the sleeve 16. Due to the surface 24 sliding on the wall 26, the structural parts 12, 14 can additionally shift in the lateral direction 3 relative to one another, the mandrel 18 being displaced parallel to a previous position within the sleeve 16. As already described, the mandrel 18 can slide in the longitudinal direction 2 during the movement 5 in the recess 22. Alternatively, the mandrel 18 can be firmly connected to the surface load distribution means 20 as long as it is movable relative to the sleeve 16. For this purpose, the mandrel 18 can in particular be formed in one piece with the surface load distribution means 20 (see below Figure 7 ) so that Surface load distribution means 20 protrudes radially from the mandrel 18 and rests with a surface 24 on the wall 26.

In Figure 3 A cross section of a preferred embodiment variant of the bearing device 10 is shown. The configuration of the bearing device 10 essentially corresponds to the arrangement Figure 2 . The lateral force Q is directed downwards in the direction of gravity 4. The recess 22 is specially V-shaped. In this case, the recess 22 has two sections 25 which are inclined to the transverse direction 1 and which are flat in themselves. The sections 25 preferably enclose an obtuse angle opened upwards. The surface of the recess 22 in the region of a tip of the angle is spaced from the surface of the mandrel 18, as a result of which an empty space is formed at the deepest point of the recess 22. Chips and / or dirt can slide down to the lowest point and can advantageously be removed from the area of the two contact surfaces 30 (in the sections 25). The mandrel 18 bears once on each of the sections 25 and forms a contact surface 30 there in each case.

In Figure 4 is a further storage device 10 according to the configuration in Figure 2 shown. The surface load distribution means 20 has a recess 22, the cross section of which has a circular section 25 or a circular contour. The circular cross section of the mandrel 18 lies in the recess 22, forming a single, continuous contact surface 30. The contact surface 30 extends over the entire recess 22, the contact surface 30 running within the recess 22 up to a horizontally oriented, peripheral top 21 of the surface load distribution means 20. The radius of the section 25 of the recess 22 is approximately the same size as the radius of the mandrel cross section. A surface dimension of the contact surface 30 can be larger than a surface dimension of the surface 24 resting on the wall 26. In a modification of the embodiment according to Figure 4 it can be provided that the contact surface 30 is smaller than the surface 24 resting on the wall 26. Furthermore, the section 25 can also have a larger radius than the mandrel cross-section 18. This creates a contact surface 30 that does not extend up to the mentioned one Top 21 is enough. Alternatively or additionally, the radius of the recess 22 can vary along the section 25. For example, the radius can become smaller in the direction of the top 21.

The embodiment in Figure 5 includes a recess 22 which is formed from three sections 25. The three sections 25 each form a contact surface 30 with the mandrel 18. Two lateral sections 25 are inclined to the transverse direction 1. They enclose an angle, which is preferably obtuse. Furthermore, the sections 25 are flat. Between the lateral sections 25, a central section 25 aligned in the lateral direction 3 is arranged.

Figure 6 discloses a further alternative of the recess 22 with two round sections 25. The two round sections 25 are separated from one another by a centrally arranged undercut 23. The round sections 25 can have the same radius or a larger radius than the cross section of the mandrel 18. If the radius of the round sections 25 is the same as the radius of the cross section of the mandrel 18, then a contact surface 30 is formed in each case, which extends from the undercut 23 to the upper side 21 of the surface load distribution means 20. If the radius is larger, the respective contact surface 30 can form on the section 25 either in the region of the upper side 21, the undercut 23 or in between. The round sections 25 can have different radial centers or a common center, wherein the centers can represent the center of an imaginary circle, on the circumference of which the respective section 25 runs. The centers can be spaced apart, for example, so that the radii of the individual sections 25 do not cross. Alternatively, the centers can be arranged such that the radii of the sections 25 intersect. Furthermore, the radius can vary in size along the sections 25.

Figure 7 shows a surface load distribution means 20, which is designed as a radial extension rigidly attached to the mandrel 18. The surface load distribution means 20 rests with the surface 24 on the wall 26 of the sleeve 16. Furthermore, the surface load distribution means 20 can be made in one piece with the mandrel 18 or fixedly attached to the mandrel 18 by welding, soldering, gluing, screwing or in some other way. The surface load distribution means 20 can extend along the entire mandrel 18 or only within the sleeve 16. The mandrel 18 can be moved in the lateral direction 3 and in the longitudinal direction 1 together with the surface load distribution means 20 over the surface 24.

In the embodiments of the Figures 2 to 6 The sections 25 for the contact surfaces 30 between the mandrel 18 and the recess 22 can be continuous or interrupted in the longitudinal direction 2. Furthermore, in all embodiments of the Figures 2 to 7 the respective surfaces 24 can be displaceable in the longitudinal direction 2 and / or lateral direction 3 on the corresponding wall 26 of the sleeve 16. Furthermore, the mandrel 18 in the embodiments of FIGS Figures 2 to 6 be displaceable in the longitudinal direction 2 in the recess 22.

In all embodiments of the Figures 2 to 7 the dimension of the surface load distribution means 20 in the lateral direction 3 is approximately the same as the diameter D or a corresponding dimension of the mandrel 18. The surface load distribution means 20 is in all embodiments of the Figures 2 to 7 symmetrical, an axis of symmetry dividing the cross section of the mandrel 18 and aligned in the transverse direction 1 coinciding with the axis of symmetry of the surface load distribution means 20.

Reference symbol list:

Q

Shear force

1

Cross direction

2nd

Longitudinal direction

3rd

lateral direction

4th

Direction of gravity

5

Move

10th

Storage device

12th

first part of the building

13

Expansion joint

14

second part of the building

16

Sleeve

17th

damage

18th

mandrel

20th

Area load distribution means

21

Top

22

Recess

23

Free cut

24th

surface

25th

section

26

Wall

30th

Contact area

32

anchor

Claims (22)

Bearing device (10) for supporting a first building part (12) on a second building part (14), comprising a sleeve (16) which can be anchored in the first building part (12) and a mandrel (18) which can be anchored in the second building part (14) for receiving a transverse force (Q), which is caused by a relative movement of the structural parts (12, 14) and is directed in a transverse direction (1) to the mandrel (18), is supported or clamped in the sleeve (16), the mandrel (18) being in a Longitudinal direction (2) is displaceable in the sleeve (16),
characterized in that
A surface load distribution means (20) is arranged inside the sleeve (16), on which the mandrel (18) rests for support in the transverse direction (1), so that the transverse force (Q) on a mandrel facing away from a wall (26) of the sleeve ( 16) adjacent surface (24) of the surface load distribution means (20) is distributed. Bearing device (10) according to claim 1, characterized in that the surface (24) is larger than a contact surface (30) between the mandrel (18) and surface load distribution means (20). Bearing device (10) according to claim 1 or 2, characterized in that the surface (24) in an assembled state of the bearing device in the direction of gravity (4) is directed downwards and / or upwards. Bearing device (10) according to one of the preceding claims, characterized in that the sleeve (16) has a rectangular cross section, wherein a straight wall (26) of the sleeve (16) in an assembled state of the bearing device is aligned horizontally with respect to the direction of gravity (4) . Bearing device (10) according to one of the preceding claims, characterized in that the surface load distribution means (20) has a recess (22) facing the mandrel (18), in which the mandrel (18) is mounted. Bearing device (10) according to claim 5, characterized in that the mandrel (18) in the recess (22) in the longitudinal direction (2) is slidably mounted. Bearing device (10) according to one of the preceding claims, characterized in that the surface load distribution means (20) on the wall (26) of the sleeve (16) in the longitudinal direction (2) and / or in a lateral direction (3), perpendicular to the Transverse direction (1) and perpendicular to the longitudinal direction (2), is displaceable. Bearing device (10) according to one of claims 1 to 7, characterized in that the surface load distribution means (20) is rigidly connected to the wall (26) of the sleeve (16). Bearing device (10) according to one of claims 1 to 7, characterized in that the mandrel (18) is rigidly connected to the surface load distribution means (20). Bearing device (10) according to one of claims 5 to 9, characterized in that the recess (22) has a single contact surface (30) which preferably extends over the entire recess (22), the recess (20) in particular a rounded one or part-circular contour (). Bearing device (10) according to one of claims 5 to 9, characterized in that the recess (22) forms at least two contact surfaces (30) with the mandrel (18). Bearing device (10) according to claim 11, characterized in that the recess (22) is V-shaped in cross section or has a section (25) parallel to the surface (24). Bearing device (10) according to one of claims 5 to 12, characterized in that the surface load distribution means (20) prismatic or is designed like a profile, the recess (22) extending in the longitudinal direction (2) along the mandrel (18). Bearing device (10) according to one of the preceding claims, characterized in that the surface load distribution means (20) has a width (B) in a lateral direction (3), perpendicular to the transverse direction (1) and perpendicular to the longitudinal direction (2), which is less than or equal to a diameter (D) of the mandrel (18). Bearing device (10) according to one of claims 1 to 13, characterized in that the surface load distribution means (20) in a lateral direction (3), perpendicular to the transverse direction (1) and perpendicular to the longitudinal direction (2), a width (B) which is greater than or equal to a diameter (D) of the mandrel (18). Bearing device (10) according to one of the preceding claims, characterized in that the surface load distribution means (20) is designed symmetrically with respect to the transverse direction (1), wherein an axis of symmetry of the mandrel (18) coincides with the axis of symmetry of the surface load distribution means (20). Bearing device (10) according to one of the preceding claims, characterized in that the mandrel (18) has a round, in particular circular cross-section. Bearing device (10) according to one of the preceding claims, characterized in that the sleeve (16) and / or the mandrel (18) have an anchor (32) with which they can be anchored in the respective structural part (12, 14). Bearing device (10) according to one of the preceding claims, characterized in that the sleeve (16) and / or the mandrel (18) contain steel or stainless steel. Bearing device (10) according to one of the preceding claims, characterized in that in the surface (24) of the surface load distribution means and / or recesses are arranged in the wall (26) against which the surface load distribution means rests. Arrangement of a bearing device (10) according to one of the preceding claims, a first structural part (12) and a second structural part (14), in which the sleeve (16) in the first structural part (12) and the mandrel (18) in the second Structural part (14) is anchored in order to absorb a transverse force (Q), which is caused by a relative movement of the structural parts (12, 14) and which acts in a transverse direction (1) to the mandrel (18), the mandrel (18) in a longitudinal direction (2 ) is displaceable in the sleeve (16). Arrangement (10) according to claim 21, characterized in that the sleeve (16) and / or the mandrel (18) are anchored with a respective anchor (32) in the respective structural part (12, 14), preferably cast in or concreted in.

Images