ES2971423T3 - Anchoring device, anchoring with anchoring device and procedure for producing the anchoring device - Google Patents

Abstract

The invention relates to an anchoring device (1), an anchor (20) with an anchoring device (1) and a method for manufacturing the anchoring device (1). (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Anchoring device, anchoring with anchoring device and procedure for producing the anchoring device

The invention relates to an anchoring device. The invention further relates to an anchor with an anchoring device. The invention also relates to a method for producing the anchor.

Multiple anchoring devices are known in the current state of the art. For example, from EP 2411 586 A1 a system for connecting steel metal components is known, which comprises two slotted plates and threaded pins that pass through the slots and connect the plates to each other.

An anchor in the construction sector is a component for the tensile-proof connection (anchorage) of components. Anchors consist primarily of steel, but may also be made of wood, reinforced or prestressed concrete, or other tensile-resistant materials. Steel anchoring devices may consist of stirrups and main support bars and may be welded together to form a basket. Depending on the use, different materials and quantities can be used.

Document US 5533835 A discloses an anchoring device according to the preamble of claim 1.

A disadvantage of the current state of the art is that the known anchoring devices must be welded together, so that it is no longer possible to retrofit the anchoring devices.

Therefore, the present invention aims to overcome the drawbacks known from the current state of the art.

This objective is achieved by an anchor device with the characteristics indicated in claim 1, by an anchor comprising an anchor device with the characteristics indicated in claim 7 and by a method for producing the anchor with the characteristics indicated in claim 12.

The anchoring device according to the invention comprises at least two, preferably three and especially preferably four anchor bars and a first anchor plate, the first anchor plate having a centrally located recess and openings, each bar being guided of anchoring through an opening and a nut being mounted for each anchor bar on the first anchor plate on the underside thereof, the anchor device also comprising other anchor plates corresponding to the number of anchor bars, presenting each of the additional anchor plates an opening, one of the anchor bars being guided through each of the openings, and the additional anchor plates being fixed in each case by two additional nuts for each anchor bar, one of the two additional nuts on the upper face of the anchor plate and another of the two additional nuts on the lower face of the anchor plate.

According to the invention, the anchoring device comprises additional anchoring plates in addition to the first anchoring plate, each of the additional anchoring plates having at least one opening, one of the anchoring bars being guided through each of the openings and the at least two anchor plates being fixed in each case by two additional nuts per anchor bar on the upper face of the anchor plate and on the lower face of the anchor plate.

Thus, the anchoring device may include two additional anchor plates with two anchor bars, two or three additional anchor plates with three anchor bars, two, three or four additional anchor plates with four anchor bars, etc. .

The first anchor plate can be understood as an anchor template.

An opening can be understood as a drill or a perforation. The second anchor plate or the additional anchor plates can be understood as a re-anchor, a re-anchor means or a re-anchor plate.

The formation of the outer contour of the first anchor plate and/or the additional anchor plates can in principle be configured according to the outer contour of all known geometric shapes. The choice of the shape of the outer contour depends on the outer contour of the support. For example, in the case of a round tube support, a circular outer contour is used if a support foot plate to be connected also has such an outer contour and the anchor bars are arranged along a circular line and parallel to each other between the re-anchor plate and the support foot plate.

The formation of the interior contour of the opening or recess in the first anchor plate is not subject to strict specifications. It can have any known geometric shape, with a rectangular, square or circular contour being especially preferable. This also applies to the configuration of the cube formwork, which is inserted into the recess and removed after molding. The shape of the cube, and with it that of the body of the cube formwork, can be parallelepiped, cubic, pyramidal, cylindrical, truncated conical or hemispherical. Preferably, by choosing the shape of the contour of the recess and the cross-sectional contour of the cube formwork, a geometric joint should be produced when the cube formwork is inserted into the recess.

The anchor bars can be designed as anchor bolts or anchor supports, for example in the form of anchor plate spacers. Preferably, the front faces of the spacer element each have two shorter anchor bars, which house the nuts and the anchor plates.

The number of anchor bars can be chosen freely. For reasons of stability during the assembly of the support, at least three anchor bars are preferably used, since in this way a support foot can be positioned and oriented on a sufficiently stable first anchor plate. For stability reasons during mounting of the bracket, four anchor bars are preferably used. Particularly preferably, more than four anchor bars are used. This results in above-average stability.

During manufacturing, the anchoring device is only screwed and not welded. This allows the anchoring device to be adjusted later. In addition, the use of high-strength anchor bars with a quality of 8.8 is also planned, although 10.9 and 12.9 and all other material qualities are also possible. This means that with a relatively small nominal diameter of the anchor bars, large tensile forces can be transmitted. The anchoring device can be understood as an anchor basket or truss basket. Anchor bars can also be understood as anchor bolts or threaded bars. The anchor bars at least partially have one or more threads. Correspondingly, all the nuts used have an internal thread that meshes with the thread of the anchor bars.

When installing the anchor device in a concrete foundation, the first anchor plate, in particular in the form of an anchor template, with a recess can be placed at a distance from the upper edge of a foundation that depends on the diameter. In this way it can be ensured that the nuts located on the underside of the first anchor plate can still be rotated.

Preferably, the first anchor plate is separated from the second anchor plate and/or the additional anchor plates. This gives sufficient stability to the anchoring device. The distance must be chosen so that, on the one hand, it meets the static requirements and, on the other hand, there is a sufficiently large concrete cover between a cube to be produced and the re-anchor. The distance between the first anchor plate and the second anchor plate and/or the additional anchor plates may be, for example, 20 cm or more.

Preferably, each of the additional anchor plates has at least one opening.

More preferably, the openings are provided at the edge of the anchor plates. In this way, the anchor bars can be easily guided through the anchor plate.

Furthermore, in the anchoring device according to the invention, a cube formwork is removably inserted into the central recess of the first anchor plate, the flanges or edges of the cube form resting flat on the first anchor plate on the face. top of it. In this way, the cube formwork can be easily stored. Cube formwork is used to produce a cube. A cube can be understood as a cavity, a free space, a notch or a hole in a foundation.

Preferably, the cube formwork also has openings, into which the anchor bars penetrate. In this way, the cube formwork is simply connected to the first anchor plate.

Preferably, the anchoring device further comprises nuts arranged on the upper face of the anchor plate or centering discs and nuts arranged on the upper face of the support foot plate or on the upper face of the flange, the nuts being mounted rotatably on the anchor bars. In this way the first anchor plate or the cube formwork can be fixed.

The anchor according to the invention comprises a concrete foundation, a support, in particular a steel support or a cellular concrete support, and an anchoring device as described above, a support foot of the support being resting on the first anchor plate, a push block being arranged on the underside of the support foot and the anchor bars being guided through openings in the support foot, and centering discs being arranged on the upper face of the support foot and the centering discs being fixed to the anchor bars by means of nuts.

For mounting supports, the first anchor plates (templates) of all anchor devices located in the same construction section are adjusted to the same height by turning the nuts located on the underside of the first anchor plates. To do this, it is necessary to first remove the nuts on the upper face of the anchor plate. In this way a mounting level can be achieved whereby all steel supports can be mounted at exactly the same height (directionz) without the need for liner plates. After leveling, the nuts are screwed back onto the anchor bars to secure the centering discs to the support foot plate.

In order to be able to adjust the supports in the xe and directions, large openings or large bores are provided in the support foot plates of the supports. For example, the drill diameter can be freely chosen in terms of design. The drill diameter can correspond to several times, for example three times, the nominal diameter of the anchor bar. This allows achieving a tolerance range for moving the support of plus/minus a single nominal diameter of the anchor bar, specifically in the x and y directions.

Large holes can be covered with centering discs. A centering disc can be understood as an eccentric disc. Preferably, the size of the discs is such that at each position of the anchor bar with respect to the center of the opening or hole center/the opening or hole is completely covered, plus a projection selected in accordance with the static requirements. The shape of the outer contour of the centering disc or eccentric disc can also be configured according to the outer contour of all known geometric shapes. Preferably, circular and/or square outer contours for the centering discs are indicated here.

The discs are not welded to the anchor plate. This means that the corrosion protection does not need to be repaired later.

Since the anchor bars cannot transmit forces in a direction orthogonal to the anchor bars due to the large bores, an additional construction element is required. A push block is used. The push block has a cross section that meets the static requirements. In principle, all known cross-sectional profiles, as well as individually manufactured or welded cross-sectional profiles, are possible for the push block. The push pad is welded to the underside of the support foot. Since the support foot plate rests or is placed directly on the first anchor plate, an opening is required in the first anchor plate to pass the push block through.

During the production of the foundation it is necessary to produce the cube into which the push block enters and through which, once the support assembly and molding of the cube have been carried out, the loads can be transferred in an orthogonal direction to the anchor bar .

Preferably, the push pad is welded to the support foot. This means that thrust forces can be easily absorbed. The push block can be designed as an I-profile. Other commercially available profile cross sections that meet the static requirements can also be used. In principle, all known cross-sectional profiles, as well as individually manufactured or welded cross-sectional profiles, are possible for the push block.

Preferably, the additional anchor plates or the second anchor plate and the anchor bars are embedded in the concrete foundation, there being a distance on the upper face of the concrete foundation with respect to the nuts of the first anchor plate in the underside of the anchor plate. There must be sufficient distance on the underside of the nuts from the top of the concrete foundation so that the nuts can be turned to level the top anchor plates. This ensures a sufficiently static connection between the foundation and the anchoring device.

More preferably, a hub is arranged between the concrete foundation and the supporting foot, with the nuts on the underside of the anchor plate and the first anchor plate and the thrust block being disposed or inserted in the hub. This allows the first anchor plate to be leveled by turning the nuts on the underside of the anchor plate to accommodate the bracket. For leveling, first remove the nuts from the first anchor plate arranged on the upper face of the anchor plate, as already mentioned above. Preferably, the cube is filled with mortar or concrete. This takes place after aligning the steel structure or steel support.

The method according to the invention to produce a load anchor comprises the following steps:

- embedding an anchoring device, in particular as described above, in a concrete foundation, the anchoring device comprising at least two anchor bars and a first anchor plate, the first anchor plate having a centrally arranged recess and openings, each anchor bar being guided through an opening and a nut for each anchor bar being mounted on the first anchor plate on the underside thereof, the anchor device also comprising other anchor plates corresponding to the number of anchor bars, each of the additional anchor plates having an opening, one of the anchor bars being guided through each of the openings, and the additional anchor plates being fixed in each case by two additional nuts For each anchor bar, one of the two additional nuts on the upper face of the anchor plate and another of the two additional nuts on the lower face of the anchor plate, the additional anchor plates or the second anchor plate being recessed. anchoring and the anchor bars in the concrete foundation, and there being a distance on the upper face of the concrete foundation with respect to the nuts of the lower face of the anchor plate of the first anchor plate;

- leveling or aligning the first anchor plate by turning the nuts on the lower anchor plate face of the first anchor plate;

- placement of a support foot of a support on the first anchor plate, a thrust stop being arranged on the underside of the support foot that enters a cube of the foundation, and passing through the anchor bars projecting openings of the foot of support;

- arrangement of centering discs on the upper face of the support foot; and

- tightening the nuts on the upper face of the centering discs to fix the centering discs.

Before leveling or aligning the first anchor plate, the nuts of the first anchor plate arranged on its upper face are removed.

In the method according to the invention, for the production of the cube on the concrete foundation, a cube formwork is inserted into the central recess of the first anchor plate, and after the production of the cube on the concrete foundation it is removed again. the cube formwork. This allows the cube formwork to be reused.

Particularly preferably, the method also includes the following step:

- filling the cube in the area between the lower face of the support foot and the upper face of the foundation with non-shrinkage mortar or concrete. The anchor bars protrude sufficiently from the top face of the foundation. When the steel support is placed on the foundation, the push block is immersed in the hub, the dimensions of which are large enough so that there is a free space between the push block and the inner surface of the recess when the steel support steel is in the final position.

Once the steel support is aligned, the anchor bolts are fixed with the centering discs in the flange on the upper face of the support foot, and the foundation recess between the thrust block, the underside of the flange and the foundation notch is filled with non-shrinkage mortar/concrete.

In this way, the entire assembly is carried out without rework on the foundation, the flange (support foot plate) and the anchors.

The use of a polystyrene block to create a corresponding recess in a foundation is known from the state of the art.

In the present case, a formwork device bolted to the anchor bars ensures, during the installation of the anchor device, that when concreting the foundation a cube of the necessary size is generated and exactly in the right place.

This formwork device preferably consists of a material with which the adhesion of concrete or mortar can be effectively prevented by the use of formwork oil. Preferably, the material is weather resistant.

Particularly preferably, the formwork device is reusable. This is particularly advantageous in case of standardized anchoring devices, since the formwork device can be purchased from the same supplier/manufacturer who also supplies the anchoring device.

Additionally, this type of cube formwork eliminates costly cube cleaning, which is necessary when using polystyrene blocks, along with the disposal of polystyrene waste.

Once the cube is molded, the anchoring of the support can be achieved, allowing a statically optimal load transfer of all forces (x, y, z) to the foundation.

In another embodiment, a hold can be achieved at the point of the support foot. This is generated by a statically necessary arrangement of the anchor bars with respect to the supporting cross section.

High-strength anchor bars of grades 8.8, 10.9 or 12.9 are preferably used, although all other grades of materials can also be used in accordance with current standards. These must be selected based on the static needs in terms of number, diameter and anchor length. In addition, the sizing of the re-anchor (second anchor plate) must be taken into account, so that, in addition to the sizing, the length of the re-anchor also depends on the concrete reinforcement and the quality of the concrete.

The sizing of the anchor device depends on the structural and static requirements.

The invention is explained in more detail below with reference to the accompanying drawings. Shows:

Figure 1 a schematic view of an embodiment of an anchoring device not corresponding to the invention;

Figure 2 is the schematic view of the anchoring device of Figure 1 with another component;

Figure 3 a schematic view of an anchoring device embedded in concrete of Figure 2;

Figure 4 a section A-A through the anchor of Figure 3;

Figure 5 is another schematic view of the anchoring device embedded in concrete;

Figure 6 is a schematic view of an embodiment of the anchor not corresponding to the invention;

Figure 7 a schematic view of the embodiment of the anchor of Figure 6 with accessories;

Figure 8 a section B-B through the anchor of Figure 7; and

Figure 9 is a schematic view of an embodiment of the device according to the invention.

Figure 1 shows an anchoring device 1. The anchoring device 1 comprises four anchoring bars 2 and a first anchoring plate 3. The first anchor plate 3 can be understood as an anchor template. The first anchoring plate 3 has a notch 4 arranged in the center and holes. Each anchor bar 2 is guided through one of the holes. A nut 6 is screwed on the anchor bars 2 in each case. The nuts 6 serve as a support for the first anchor plate 3, the nuts 6 being arranged on the underside of the anchor plate. In Figure 1, the nut 6 is covered by the first anchor plate 3. However, they are shown in Figure 4, for example. In addition, nuts 5 are provided. The nuts 5 are used to fix or position the first anchor plate 3, the nuts 5 being arranged on the upper face of the anchor plate.

The anchoring device 1 further comprises a second anchoring plate 7. The second anchor plate can be understood as a re-anchor or re-anchor plate. The second anchoring plate 7 has holes. Each anchor bar 2 is guided through one of the holes. Two nuts 11, 12 are screwed on the anchor bar 2 in each case. The nuts 12 serve as a support for the second anchor plate 7, the nuts 12 being arranged on the underside of the anchor plate. The nuts 11 are used to fix or position the second anchor plate 7, the nuts 11 being arranged on the upper face of the anchor plate.

The first anchor plate 3 is separated from the second anchor plate 7. The holes of the anchor plates 3, 7 are arranged along the edges of the anchor plates 3, 7.

Figure 2 shows the anchoring device 1 of Figure 1 with another component. The anchoring device 1 also has a cube formwork 15. The cube formwork 15 is inserted in the central recess 4 of the first anchor plate 3. The flanges or edges of the cube formwork 15 rest flat on the first anchor plate 3 on its upper face. The cube formwork 15 has openings into which the anchor bars 2 penetrate. The nuts 5 are now fixed to the anchor bars 2 on the upper face of the flange.

The cube form 15 is used to create a foundation recess, technically called a cube, in a concrete foundation, as described in more detail below.

Figure 3 shows an anchoring device 1 embedded in a concrete foundation 21 with a cube formwork 15 of Figure 2.

Firstly, the anchoring device 1 is embedded in the concrete foundation 21, the first anchoring plate 3 being introduced to such a point above the concrete foundation 21 that the nuts 6 of the first anchoring plate 3 arranged on the face bottom of the first anchor plate 3 are arranged above the concrete foundation 21 to such an extent that the first anchor plate 3 can be adjusted along the longitudinal extension of the anchor bars 2 upwards (positive Z direction in the plane of the blade) and downwards (negative Z direction in the plane of the blade) by turning the nuts 6. Before leveling, the nuts 5 are removed. Later, during the assembly of the support, the nuts are screwed back on 5 on the anchor bars 2 to fix the support foot 23 by means of centering discs 26.

Next, a leveling or orientation of the first anchor plate 3 takes place by turning the nuts 6 of the first anchor plate 3 on the underside of the same. For the assembly of the support 22, all the first anchor plates 3 located in the construction section are adjusted to achieve the structurally necessary height by turning the nuts 6 located on the underside of the anchor plate.

To manufacture the cube 25 in the concrete foundation 21, the cube formwork 15 is inserted into the central recess 4 of the first anchor plate 3. The cube formwork 15 is removed again after the manufacture of the cube 25 on the concrete foundation 21.

Figure 4 shows a section A-A of Figure 3. The second anchor plate 7 and the anchor bars 2 are embedded in the concrete foundation 21 below the nuts 6 on the underside of the first anchor plate 3. The surface of the concrete foundation 21 is spaced from the nuts 6 (distance 17).

Figure 5 shows the concreting anchor device 1 of Figure 3, where the cube formwork 15 after the concreting process of the concrete foundation 21 has been removed again and the nuts 5 are again supported on the upper face. of the plate. However, nuts 5 are not necessary at this point in the process.

Figure 6 shows a schematic view of an anchor 20. The anchor 20 comprises a concrete foundation 21, a support 22, in particular a steel support or cellular concrete support, with a support foot or support foot plate 23 and the anchoring device 1, as described above.

When the support foot 23 of the support 22 is placed on the first anchor plate 3, a push pad 24 is arranged on the underside of the support foot. The thrust block 24 enters the hub 25 of the foundation 21. The protruding anchor bars 2 pass through holes in the support foot 23. On the upper face of the support foot, a centering disc 26 is arranged on the anchor bars 2 in each case. The nuts 5 on the upper face of the anchor plate, which are rotatably mounted on the anchor bars 2, are then tightened until they come into contact with the centering discs.

Figure 7 shows the anchor 20 of Figure 6 with complements. A cube-shaped cavity 25 (see Figure 8) arranged between the concrete foundation 21 and the support foot 23 between the lower flange face of the support foot 23 and the bottom of the foundation recess is filled with mortar. 28 without shrinkage or, alternatively, filled with concrete.

Figure 8 shows a section B-B through the anchor of Figure 7.

A support foot 23 of the support 22 rests on the first anchoring plate 3, a push block 24 being arranged on the underside of the support foot. The anchor bars 2 are guided through openings in the support foot 23. Furthermore, centering discs 26 are arranged on the upper face of the support foot. The centering discs 26 themselves are secured to the anchor bars 2 by means of nuts 5.

The push block 24 has an I-shaped profile.

The second anchor plate 7 and the anchor bars 2 are embedded in the concrete foundation 21 under the nuts 6 of the first anchor plate 3 on the underside of the same, there being a free space between the surface of the foundation 21 concrete and 6 nuts.

As mentioned above, the cube 25 arranged between the concrete foundation 21 and the supporting foot 23 is filled with mortar or concrete.

The nuts 6 of the first anchor plate 3 on the lower face thereof and the first anchor plate 3 are arranged in the hub 25.

Figure 9 shows another embodiment of the anchoring device 1. The anchoring device 1 comprises four anchoring bars 2 and a first anchoring plate 3. The first anchor plate 1 can be understood as an anchor template. The first anchoring plate 3 has a notch 4 arranged in the center and holes. Each anchor bar 2 is guided through a hole. A nut 6 is screwed on the anchor bars 2 in each case. The nuts 6 serve as a support for the first anchor plate 3, the nuts 6 being arranged on the underside of the anchor plate. Nuts 5 are also provided. In Figure 9, nut 6 is covered by the first anchor plate 3. The nuts 5 are used to fix or position the first anchor plate 3, the nuts 5 being arranged on the upper face of the anchor plate. The anchoring device 1 includes other anchoring plates 7, 8, 9, 10. Other anchor plates can be understood as a re-anchor or re-anchor plates. Each of the anchor plates 7, 8, 9, 10 has a hole. Each anchor bar 2 is guided through one of the holes. Two nuts 11, 12 are screwed into each of the anchor bars 2. The nuts 12 serve as supports for the anchor plates 7, 8, 9, 10, the nuts 12 being arranged on the underside of the anchor plate. . The nuts 11 are used to fix or position the anchor plates 7, 8, 9, 10, the nuts 11 being arranged on the upper face of the anchor plate.

The first anchor plate 3 is separated from the other anchor plates 7, 8, 9, 10. The holes in the anchor plates 3, 7, 8, 9, 10 are located along the edges of the anchor plates 3, 7, 8, 9, 10.

With the anchoring device 1 according to Figure 9, another possibility for the configuration of the anchoring device is shown.

As a further alternative, but not according to the invention, instead of the four anchor plates 7, 8, 9, 10 shown in Figure 9 at least two additional anchor plates 7, 8 can be used.

The first additional anchor plate 7 can replace the anchor plates 7, 8 of Figure 9 and the second additional anchor plate 8 can replace the anchor plates 9, 10 of Figure 9. Furthermore, the first anchor plate 7 additional can also replace the anchor plates 7, 9 of Figure 9 and the second additional anchor plate 8 can replace the anchor plates 8, 10 of Figure 9.

The two additional anchor plates 7, 8 then have at least one opening, each of the anchor bars being guided through each of the openings and in each case another two nuts per anchor bar fixing the two plates 7, 8 anchoring on the upper face of the anchor plate and on the lower face of the anchor plate.

This shows another possibility for the configuration of the anchor device.

As a further alternative, but not according to the invention, instead of the four anchor plates 7, 8, 9, 10 shown in Figure 9, at least three additional anchor plates 7, 8, 9 can also be used. One of the anchor plates may have two openings, an anchor bar 2 being guided through each opening. The second and third anchor plates can each have an opening in which an anchor bar 2 is guided. In this way, multiple possible combinations can be made with three re-anchor plates and four anchor bars.

Therefore, depending on the needs and the quantity of anchor bars, different possibilities result for dividing the second anchor plate into one, two, three or more re-anchor plates. Depending on the circumstances of the division of the second anchor plate, the individual re-anchor plates may have one, two or more openings or holes to accommodate one, two or more anchor bars, so there are different combination possibilities and arrangements. between the number of individual re-anchor plates and the number of openings for housing anchor bars in the respective re-anchor plates. The outer contours of the individual re-anchoring plates can also be configured according to all known shapes, the conformation of the outer contour of the individual re-anchoring plates being able to be chosen differently, which makes it possible to achieve a uniform conformation of the outer contours or any combination. desired outer contours.List of reference symbols

1 Anchoring device

2 Anchor bar

3 First anchor plate (anchor template)

4 Cutout

5 Nut

6 Nut

7 Second anchoring plate (re-anchoring)

8 Third anchoring plate (re-anchoring)

9 Fourth anchoring plate (re-anchoring)

10 Fifth anchoring plate (re-anchoring)

11 Nut

12 Nut

15 Cube formwork

17 Distance (free space)

20 Anchorage (support structure)

21 Concrete foundation

22 Support

23 Support foot (support foot plate)

24 Push block

25 Cube (cavity)

26 Centering disc

28 Mortar

Claims (13)

1. Anchoring device (1) comprising at least two anchoring bars (2) and a first anchoring plate (3), the first anchoring plate (3) having a centrally arranged recess (4) and openings, being guided each anchor bar (2) through an opening and in each case a nut (6) for each anchor bar (2) is mounted on the first anchor plate (3) on the underside of the anchor plate, the anchoring device (1) also comprising additional anchoring plates (7, 8, 9, 10) corresponding to the number of anchoring bars (2), each of the anchoring plates (7, 8, 9, 10) presenting additionally an opening, one of the anchor bars (2) being guided through each of the openings and fixing in each case two additional nuts (11, 12) per anchor bar (2) to the anchor plates (7). , 8, 9, 10), one of the two additional nuts (11) on the upper face of the anchor plate and the other of the two additional nuts (12) on the lower face of the anchor plate, characterized by that A cube formwork (15) is removably inserted into the central recess (4) of the first anchor plate (3), the flanges of the cube formwork (15) resting flat on the first anchor plate (3). anchoring on the upper face of the anchor plate. 2. Anchoring device (1) according to claim 1, the first anchoring plate (3) being separated from the additional anchoring plates (7, 8, 9, 10). 3. Anchoring device (1) according to claim 1 or 2, the distance between the first anchoring plate (3) and the additional anchoring plates (7, 8, 9, 10) being at least 20 cm. 4. Anchoring device (1) according to one of the preceding claims, the openings being located on the edge of the anchoring plates (3, 7, 8, 9, 10). 5. Anchoring device (1) according to one of the preceding claims, the cube formwork (15) having openings and the openings being traversed by the anchor bars (2). 6. Anchoring device (1) according to one of the preceding claims, further comprising nuts (5), which are arranged on the upper face of the anchoring plate, or centering discs (26) and nuts (5), which They are arranged on the upper face of the support foot plate, the nuts (5) being mounted rotatably on the anchor bars (2). 7. Anchor (20) comprising a concrete foundation (21), a support (22), in particular steel support or cellular concrete support, and an anchoring device (1) according to one of the preceding claims, being supported a support foot (23) of the support (22) on the first anchor plate (3), a push block (24) being arranged on the underside of the support foot and the anchor bars (2) being guided to through openings in the support foot (23), and the centering discs (26) being arranged on the upper face of the support foot and the centering discs (26) having to be fastened to the anchor bars (2) by means of nuts (5). 8. Anchor (20) according to claim 7, the thrust block (24) being welded to the support foot (23). 9. Anchor (20) according to one of claims 7 to 8, the additional anchor plates (7, 8, 9, 10) and the anchor bars (2) being embedded in the concrete foundation (21), existing in the upper face of the concrete foundation a distance with respect to the nuts on the lower face of the anchor plate of the first anchor plate (3). 10. Anchor (20) according to any of claims 7 to 9, a cube (25) being arranged between the concrete foundation (21) and the support foot (23), and the nuts (6) being on the underside. of the anchor plate of the first anchor plate (3) and the thrust block (24) arranged in the hub (25). 11. Anchor (20) according to claim 10, the cube (25) being filled with mortar or concrete. 12. Procedure to produce a load anchor, which includes the following stages: - embedding an anchor device (1) in a concrete foundation (21), the anchor device (1) comprising at least two anchor bars (2) and a first anchor plate (3), the first plate presenting (3) a centrally arranged recess (4) and openings, each anchor bar (2) being guided through an opening and a nut (6) being mounted for each anchor bar (2) on the first plate ( 3) anchoring on the lower face thereof, the anchoring device (1) also comprising other anchoring plates (7, 8, 9, 10) corresponding to the number of anchoring bars (2), each one presenting the additional anchor plates (7, 8, 9, 10) have an opening, one of the anchor bars (2) being guided through each of the openings, and the plates (7, 8, 9, 10) being fixed ) additional anchoring in each case by two additional nuts (11, 12) for each anchor bar (2), one of the two additional nuts (11) on the upper face of the anchor plate and another of the two nuts ( 12) additional on the lower face of the anchor plate, the additional anchor plates (7, 8, 9, 10) and the anchor bars (2) being embedded in the concrete foundation (21), and existing in the upper face of the concrete foundation a distance with respect to the nuts (6) of the lower face of the anchor plate of the first anchor plate (3); - leveling or aligning the first anchor plate (3) by turning the nuts (6) on the lower face of the anchor plate of the first anchor plate (3); - placement of a support foot (23) of a support (22) on the first anchoring plate (3), a push stop (24) being arranged on the lower face of the support foot that enters a hub (25). ) of the concrete foundation (21), and passing through the anchor bars (2) protruding from the openings of the support foot (23); - arrangement of centering discs (26) on the upper face of the support foot; and - tightening the nuts (5) on the upper face of the centering discs to fix the centering discs (26); and introducing a cube formwork (15) into the central recess (4) of the first anchor plate (3) to produce the cube (25) in the concrete foundation (21), and again removing the formwork (15) from cube after producing the cube (25) in the concrete foundation (21). 13. Method according to claim 12, further comprising the following step: - filling the cube (25) in the area between the lower face of the support foot (23) and the upper face of the concrete foundation (21) with mortar or non-shrink concrete.