The invention relates to a concrete construction element comprising a concrete base body, at least one anchor rail embedded in the concrete base body and at least one reinforcement component, wherein the concrete base body comprises at least one flat side and an end face, wherein the reinforcement component comprises a plate which is embedded in the concrete base body at a side of the anchor rail that is facing toward the end face of the concrete base body, wherein the reinforcement component comprises at least two anchors which are fixedly connected to the plate and which extend away from the plate to the side of the anchor rail facing away from the plate.
The invention further relates to a reinforcement arrangement in particular for a concrete construction element, comprising an anchor rail with at least one rail anchor and a reinforcement component, wherein the reinforcement component comprises a plate and at least two anchors, wherein the plate extends at a distance from the anchor rail.
US 2020/0232206 discloses a concrete construction element with an anchor rail and an edge reinforcement. The edge reinforcement is formed by a plate which is arranged at the end face of the construction body. A plurality of anchoring rods are secured to the plate. The anchoring rods extend below the anchor rail away from the plate to the side of the anchor rail facing away from end face of the construction body.
The invention has the object to provide a concrete construction element of the aforementioned kind with improved edge reinforcement.
A further object of the invention resides in providing a reinforcement arrangement, in particular for a concrete construction element.
In accordance with the invention, the object is achieved in regard to the concrete construction element in that the anchors at their ends facing away from the plate each comprise at least one anchoring section which forms an undercut in the direction toward the plate.
In accordance with the invention, the object is achieved in regard to the concrete construction element furthermore in that the anchor rail comprises an interior and the at least one anchor, in a viewing direction in a longitudinal direction of the anchor rail, covers the interior of the anchor rail at least partially.
In accordance with the invention, the object is achieved in regard to the concrete construction element furthermore in that the reinforcement component and the anchor rail are configured together as one piece.
In regard to the reinforcement arrangement, the object is solved in that the plate together with at least two anchors is formed as one piece.
Thus, in order to provide an improved edge reinforcement, it is provided that the anchors at their ends facing away from the plate each comprises at least one anchoring section which, in the direction toward the plate, forms an undercut. Such an undercut improves anchoring of the anchoring sections in the surrounding concrete. In this way, by means of the plate connected to the anchors, greater forces can be transmitted so that the edge reinforcement is improved. In this way, higher transverse forces can be absorbed by the anchor rail and the surrounding concrete. In this context, the at least one anchoring section forms an undercut in particular in the direction toward the end face of the concrete base body.
A simple configuration of the reinforcement component is provided when the plate and at least two anchors are formed together as one piece. The plate and the at least two anchors are accordingly manufactured monolithically from a common base material. In this way, the manufacture is simplified because no separate connections between the at least two anchors and the plate must be produced. In a particularly advantageous configuration, the anchors with the anchoring sections are formed of flat material, in particular together with the plate. In this way, a simple cost-efficient manufacture of the anchors, in particular of the entire reinforcement component, as a bent sheet metal part is possible.
As an alternative or as a supplement to the configuration with at least one anchoring section provided with an undercut, it is advantageously provided that the at least one anchor, in viewing direction in longitudinal direction of the anchor rail, covers an interior of the anchor rail at least partially. This constitutes an independent inventive concept which is independent of the formation of an undercut provided by the anchoring sections. In contrast to the prior art, the at least one anchor does not extend below the back of the anchor rail. Instead, the at least one anchor extends along an end face of the anchor rail and covers the end face of the anchor rail at least partially. In this way, a good force introduction from the anchor rail into the at least one anchor is made possible. At the same time, the overall size of the anchor rail and of the at least two anchors is reduced. In this way, in particular the installation in a concrete construction element with additional reinforcement is facilitated. When manufacturing the concrete construction element, the reinforcement component is preferably placed onto a reinforcement of the concrete construction element or secured to the additional reinforcement or to a formwork.
Particularly preferred, two anchors are provided which extending at one end of the anchor rail, respectively. In this way, the anchor rail is safely anchored at its ends in the surrounding concrete so that in particular transverse forces can be distributed well into the surrounding concrete.
Particular preferred, the anchors are fixed at the ends of the anchor rail. In this way, the plate, the anchor rail, and the sections of the anchors connecting the plate and the anchor rail form a closed frame; this closed frame clamps the concrete arranged therebetween and enables thus a good force introduction and avoids that concrete chips off between anchor rail and end face of the concrete construction element.
The anchor rail comprises advantageously a longitudinal side which is facing the plate. In viewing direction perpendicular to the longitudinal side, the plate covers the anchor rail advantageously across at least 50%, in particular across at least 80%, of the length of the anchor rail at least partially. In a particularly preferred configuration, the plate covers the anchor rail across at least 50%, in particular across at least 80%, of the length of the anchor rail across at least 50% of the height, in particular across the entire height, of the rail base body of the anchor rail.
The anchor rail comprises advantageously a rail base body and at least one rail anchor secured thereat. The plate covers the rail base body in viewing direction perpendicular to the longitudinal side of the anchor rail advantageously across at least 50%, in particular across at least 80%, of the height of the rail base body. The overlap of the rail base body and the plate across at least 50% of the height of the rail base body exists in this context at least across a portion of the length of the rail base body, in particular across at least 50%, preferably across at least 80%, of the length of the anchor rail.
Particularly advantageously, the plate covers at least partially the at least one rail anchor in viewing direction perpendicular to the longitudinal side of the anchor rail. In an advantageous configuration, it is provided that the plate covers at least partially the at least one anchoring section in viewing direction perpendicular to the longitudinal side of the anchor rail. It has been found that by the overlap in the viewing direction perpendicular to the longitudinal side of the anchor rail, i.e., in transverse direction of the anchor rail, a beneficial force distribution is enabled, in particular for transverse forces introduced into the anchor rail.
In order to achieve a good edge reinforcement, it is advantageously provided alternatively or additionally that the reinforcement component and the anchor rail are formed together as one piece. The one piece configuration of reinforcement component and anchor rail constitutes an independent inventive concept which is independent of additional configurational features. The reinforcement component and the anchor rail are therefore fixedly and stably connected to each other. For example, the reinforcement component can be welded to the anchor rail, in particular by spot welds. A different type of attachment of reinforcement component and anchor rail may be advantageous also. Due to the one piece configuration, the reinforcement component and the anchor rail can be positioned as a unitary component. In this way, the manufacture of the concrete construction element is simplified. The reinforcement component, in particular the plate, provides a positioning aid for the anchor rail. When the plate is positioned at the end face or at a predetermined minimal distance from the end face, the anchor rail is forcibly positioned at a predetermined distance from the end face of the concrete construction element. The reinforcement component and the anchor rail are not connected exclusively by means of the surrounding concrete but, already prior to pouring the surrounding concrete, are connected in a fixed and permanent way to each other. Forces that are occurring between anchor rail and reinforcement component can therefore be transmitted directly and without intermediate action of the concrete. Therefore, great forces can be reliably transmitted.
In order to achieve a good introduction of forces into the surrounding concrete and to avoid that concrete chips off in the edge region of the concrete construction element, it is advantageously provided that the plate is embedded at a distance of less than 20 mm from the end face in the concrete construction element. In a particularly advantageous configuration, the plate is positioned immediately at the end face. The longitudinal direction of the plate extends advantageously parallel to the longitudinal direction of the anchor rail. The plate and the anchor rail extend advantageously at a distance from each other. Particularly preferred, the plate does not project in longitudinal direction of the plate past the anchor rail. In this way, the plate can pass with a bend into the anchors so that no edges are produced and therefore also no force peaks for introduction of forces into the concrete are generated. The at least one anchor extends preferably perpendicularly to the plate and the end face of the concrete construction element.
For a reinforcement arrangement for a concrete construction element, it is provided that the reinforcement arrangement comprises an anchor rail with at least one rail anchor secured thereat and further comprises a reinforcement component. The reinforcement component comprises a plate and at least two anchors. The plate extends at a distance from the anchor rail. A simple manufacture and handling of the reinforcement arrangement can be achieved in that the plate and the at least two anchors are formed together as one piece. The plate and the at least two anchors can be embodied in particular as a bent sheet metal part in this context. In this way, a simple manufacture is enabled.
In an advantageous embodiment, it is provided that the reinforcement component comprises at least one additional anchor which is fixed to the plate. The additional anchor which is provided in addition to the two anchors provided at the ends of the anchor rail extends advantageously at the back of the anchor rail and extends parallel to the anchors extending at the ends of the anchor rail. The at least one additional anchor also comprises advantageously an anchoring section.
The longitudinal direction of the plate extends advantageously parallel to the longitudinal direction of the anchor rail in viewing direction perpendicular to a longitudinal side of the anchor rail. In a particularly advantageous embodiment, the longitudinal direction of the anchor rail and the longitudinal direction of the plate are aligned parallel to each other.
Embodiments of the invention will be explained in the following with the aid of the drawings.
The reinforcement arrangement 25 which is embedded in the concrete base body 2 comprises an anchor rail 6 as well as a reinforcement component 10. In the embodiment, the anchor rail 6 and the reinforcement component 10 are embodied together as one piece. The anchor rail 6 and the reinforcement component 10 are therefore connected to each other in a load-bearing way, in particular non-detachably, to each other. The load-bearing, fixed connection between anchor rail 6 and reinforcement component 10 can be, for example, a weld connection, in particular a spot weld connection.
The reinforcement component 10 comprises a plate 11 and two anchors 13 which are fixedly connected to the plate 11. In the embodiment, the plate 11 and the anchors 13 are arranged flush in relation to the flat side 3 in the concrete base body 2. In an advantageous configuration, precisely two anchors 13 are provided. The plate 11 comprises a longitudinal direction 12 which extends parallel to the end face 5. The plate 11 is advantageously embedded at a distance of less than 20 mm from the end face 5 in the concrete base body 2. The plate 11 is arranged in the embodiment immediately adjacent to the end face 5 and without a distance from the end face 5. The anchor rail 6 comprises a longitudinal direction 7. The longitudinal direction 7 of the anchor rail 6 and the longitudinal direction 12 of the plate 11 extend parallel to each other and at a distance from each other, as shown in
At their ends 14 facing away from the plate 11, the anchors 13 comprise anchoring sections 15. In the embodiment according to
The anchor rail 6 comprises two ends 21. At each end 21, one of the anchors 13 is fixed. As shown in
The longitudinal direction 7 of the anchor rail 6 is positioned in a center plane 24. The center plane 24 extend centrally between the side walls 18 of the anchor rail 6. The center plane 24 extends parallel to the plane of the end face 5 (
The anchors 13 comprise a length h which is measured perpendicularly to the end face 5 or perpendicularly to the center plane 24. The rail base body 8 of the anchor rail 6 comprises a height c which is measured perpendicularly to the longitudinal direction 7 and parallel to the center plane 24. The anchors 13 comprise a height i which is measured parallel to the center plane 24 and perpendicularly to the longitudinal direction 7. The height i is measured between the plate 11 and the anchoring sections 15 in this context. In the region of the anchoring sections 15, the anchors 13 can have a larger height. The height i corresponds advantageously to at least 80%, preferably at least 100%, of the height c. In the embodiment, the height i is greater than the height c. The plate 11 comprises a height d (
In
In
In the embodiment, the plate 11 and the anchors 13 are embodied together as one piece. Advantageously, the plate 11 and the anchors 13 are made of flat material. The plate 11 can be formed together with the anchors 13, for example, as a bent sheet metal part. The anchor rail 6 is connected fixedly to the anchors 13. For this purpose, the anchors 13 are fixed to the ends 21 of the anchor rail 6, for example, by welding. A one-piece monolithic configuration of the plate 11, the anchors 13, and the anchor rail 6 can be provided also.
In viewing direction 23 perpendicular to the longitudinal side 26 and the end face 5, the plate 11 at least partially covers the anchor rail 6 advantageously across at least 50%, in particular at least 80%, of the length a of the anchor rail.
In addition to the anchors 13 which are extending at both ends 21 of the anchor rail 6, the reinforcement arrangement 25 can comprise at least one additional anchor 13′. In
In the embodiment according to
A different configuration of the anchoring sections 15 can also be advantageous.
As shown in
The plate 11 and the anchor rail 6, together with the sections of the anchors 13 extending between the plate 11 and the anchor rail 6, frame the section of the concrete base body 2 arranged between plate 11 and anchor rail 6. External forces which are acting on the concrete framed by the plate 11 and the anchor rail 6 are introduced through the anchors 13 and the anchoring sections 15 into the concrete base body 2.
As shown in
In the embodiment according to
The specification incorporates by reference the entire disclosure of German priority document 20 2019 005 047.7 having a filing date of Dec. 11, 2019.
While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.
Number | Date | Country | Kind |
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20 2019 005 047.7 | Dec 2019 | DE | national |