Anchoring with anchoring device and method for producing the anchoring

Abstract

Anchorage (20) comprising a concrete foundation (21), a support (22), in particular a steel support or a chambered concrete support, and an anchoring device (1), wherein the anchoring device (1) comprises at least two anchor rods (2) and a first anchor plate (3), wherein the first anchor plate (3) has a centrally arranged recess (4) and openings, wherein each anchor rod (2) is guided through an opening and a nut (6) for each anchor rod (2) is mounted on the underside of the first anchor plate (3), wherein the anchoring device (1) further comprises either a) comprising a second anchor plate (7), wherein the second anchor plate (7) has openings, one of the anchor rods (2) being guided through each of the openings and two further nuts (11, 12) for each anchor rod (2), one of the two further nuts (11) on the upper side of the anchor plate and another of the two further nuts (12) on the lower side of the anchor plate, fixing the second anchor plate (7), or b) comprising further anchor plates (7, 8, 9, 10) corresponding to the number of anchor rods (2), each of the further anchor plates (7, 8, 9, 10) having an opening, through each of the openings of which one of the anchor rods (2) is guided and two further nuts (11, 12) each of the anchor rods (2), one of the two further nuts (11) on the upper side of the anchor plate and another of the two further nuts (12) on the underside of the anchor plate, securing the further anchor plates (7, 8, 9, 10), wherein a support foot (23) of the support (22) rests on the first anchor plate (3), wherein a shear lug (24) is arranged on the underside of the support foot, and the anchor rods (2) are guided through openings in the support foot (23), and wherein centering discs (26) are arranged on the upper side of the support foot and the centering discs (26) are fastened to the support by means of nuts (5). are attached to the anchor rods (2).

Description

[0001] The invention relates to an anchoring device. The invention also relates to a method for manufacturing the anchoring device.

[0002] A variety of anchoring devices are known from the prior art. In construction, an anchor is a component used for the tensile-resistant connection (anchoring) of structural elements. Anchors are predominantly made of steel, but can also be made of wood, reinforced concrete, prestressed concrete, or other tensile-resistant materials. Steel anchoring devices can consist of stirrups and main support bars welded together to form a cage. Depending on the application, different materials and quantities can be used.

[0003] A disadvantage of the state of the art is that the known anchoring devices have to be welded together, which means that it is no longer possible to adjust the anchoring devices afterwards.

[0004] Document US 5,533,835 A discloses an anchoring device for mounting a level crossing signal. The anchoring device comprises two L-shaped frames with anchor rods passing through them. Each frame has four openings, each accommodating one of the anchor rods. The frames are secured by means of nuts on the top and bottom of the anchor plates, which are screwed onto the anchor rods. The frames and other components of the anchoring device are embedded in concrete, making subsequent adjustments to the anchoring device impossible.

[0005] Document DE 197 28 866 A1 relates to a column base for a steel building, consisting of a contact plate with a shear locking device and a tie rod, which are embedded in a foundation slab. The contact plate has a flat bearing surface with compensating shims and with lateral stop surfaces that act longitudinally and in at least one of the two transverse directions of the frame member. The gaps between the stop surfaces and the column are filled with shims. Furthermore, an anti-lift device is provided to secure the column.

[0006] The present invention is therefore based on the objective of overcoming the disadvantages known from the prior art.

[0007] This problem is solved by an anchoring device having the features of claim 1 and by a method for producing a load-bearing anchoring device having the features of claim 12.

[0008] The anchoring device according to the invention comprises an anchoring device with at least two, preferably three and particularly preferably four anchor rods and a first anchor plate, wherein the first anchor plate has a centrally arranged recess and openings, wherein each anchor rod is guided through an opening and a nut for each anchor rod is mounted on the underside of the first anchor plate, wherein the anchoring device further comprises either - a second anchor plate comprising, the second anchor plate having openings, one of the anchor rods being passed through each of the openings, and two further nuts per anchor rod, one of the two further nuts on the top of the anchor plate and another of the two further nuts on the bottom of the anchor plate, fixing the second anchor plate, or - comprising additional anchor plates corresponding to the number of anchor rods, each of the additional anchor plates having an opening, through each of the openings one of the anchor rods being guided and two additional nuts per anchor rod, one of the two additional nuts on the top of the anchor plate and another of the two additional nuts on the bottom of the anchor plate, fixing the additional anchor plates.

[0009] The anchoring system according to the invention further comprises a concrete foundation, a support, in particular a steel support or a chambered concrete support, wherein a support base of the support rests on the first anchor plate, wherein a shear lug is arranged on the underside of the support base, and the anchor rods are guided through openings in the support base, and wherein centering discs are arranged on the upper side of the support base and the centering discs are fastened to the anchor rods by means of nuts.

[0010] Particularly preferably, the anchoring device comprises, in addition to the first anchor plate, further anchor plates, each of which has at least one opening, through which one of the anchor rods is guided, and two further nuts per anchor rod fix the at least two anchor plates on the upper and lower sides of the anchor plates.

[0011] This means that the anchoring device can include two additional anchor plates for two anchor rods, two or three additional anchor plates for three anchor rods, two, three or four additional anchor plates for four anchor rods, etc.

[0012] The first anchor plate can refer to an anchor template. An opening can refer to a bore or a drill hole. The second or subsequent anchor plates can refer to a back anchor, a back anchoring device, or a back anchoring plate.

[0013] The outer contour of the first anchor plate and / or subsequent anchor plates can, in principle, be formed according to the outer contour of any known geometric shape. The choice of outer contour shape depends on the column's outer contour. For example, a circular outer contour is used for a round tube column if the column base plate to be connected also has such an outer contour and the anchor rods are arranged along a circle and parallel to each other between the back anchor plate and the column base plate.

[0014] The shape of the inner contour of the opening or recess in the first anchor plate is not subject to any strict requirements. It can have any known geometric shape, with a rectangular, square, or circular contour being particularly preferred. This also applies to the shape of the socket formwork, which is inserted into the recess and later removed after grouting. The shape of the socket, and consequently that of the body of the socket formwork, can be cuboid, cubic, pyramidal, cylindrical, frustoconical, or hemispherical. Preferably, the shape of the recess contour and the cross-sectional contour of the socket formwork should be chosen to ensure a positive-locking connection when the socket formwork is inserted into the recess.

[0015] In principle, anchor plate spacers can be used instead of at least two anchor rods. These can have a different shape than the rods and still provide sufficient stability. The anchor rods can be designed as anchor bolts or anchor supports, for example, in the form of anchor plate spacers. The end faces of the spacer preferably each have two shorter anchor rods that accommodate the nuts and the anchor plates.

[0016] The number of anchor rods is freely selectable. For stability during support installation, at least three anchor rods are preferably used, as this allows the support base to be placed and aligned on a sufficiently stable first anchor plate. Four anchor rods are also preferred for stability during support installation. More than four anchor rods are particularly preferred, as this results in above-average stability.

[0017] The anchoring device is simply bolted in place during manufacturing, not welded. This allows for subsequent adjustments to the anchoring device. Furthermore, the use of high-strength anchor rods with a grade of 8.8 is also planned, although grades 10.9 and 12.9, as well as all other material grades, are also possible. This allows for the transmission of high tensile forces with a relatively small nominal diameter of the anchor rods. The anchoring device can be understood as an anchor cage or reinforcement cage. Anchor rods can also be understood as anchor bolts or threaded rods. The anchor rods have at least one or more threads, at least partially. Accordingly, all nuts used have an internal thread that meshes with the thread of the anchor rods.

[0018] When installing the anchoring device in a concrete foundation, the first anchor plate, particularly in the form of an anchoring template, can be positioned with a recess at a diameter-dependent distance from the top edge of the foundation. This ensures that the nuts located on the underside of the first anchor plate can still be turned.

[0019] Preferably, in the anchoring device, the first anchor plate is spaced apart from the second anchor plate and / or from subsequent anchor plates. This provides the anchoring device with sufficient stability. The spacing must be selected so that it meets the static requirements and ensures sufficient concrete cover between the socket to be constructed and the back anchor. For example, the distance between the first anchor plate and the second and / or subsequent anchor plates can be 20 cm or more.

[0020] Preferably, each of the additional anchor plates has at least one opening.

[0021] Furthermore, it is preferable that the openings in the anchoring device are arranged at the edges of the anchor plates. This allows the anchor rods to be easily guided through the anchor plate.

[0022] A particularly preferred anchoring device incorporates a socket formwork inserted into the central recess of the first anchor plate, with flanges or folded edges of the socket formwork resting flush on the top surface of the first anchor plate. This allows for easy support of the socket formwork. The socket formwork serves to create a socket. A socket can be understood as a cavity, a free space, a recess, or a cutout in a foundation.

[0023] Preferably, the socket formwork also has openings through which the anchor rods penetrate. This allows the socket formwork to be easily connected to the first anchor plate.

[0024] Preferably, the anchoring device further comprises nuts arranged on the upper side of the anchor plates or centering discs and nuts arranged on the upper side of the support base plates or flanges, wherein the nuts are rotatably mounted on the anchor rods. This allows the first anchor plate or the socket formwork to be fixed in place.

[0025] For column installation, the first anchor plates (templates) of all anchoring devices in the same construction phase are aligned to the same height by turning the nuts located on their underside. Before doing so, the nuts on the top of the anchor plates must be removed. This creates a level mounting plane, allowing all steel columns to be installed at precisely the same height (z-direction) without the need for shims. After leveling, the nuts are screwed back onto the anchor rods to secure the centering washers to the column base plate.

[0026] To allow for adjustment of the supports in the x and y directions, large openings or bores are incorporated into the support base plates. The bore diameter, for example, can be freely selected for design purposes. It can be several times, for instance three times, the nominal diameter of the anchor rod. This allows for a tolerance range for moving the support of plus or minus one nominal diameter of the anchor rod in both the x and y directions.

[0027] The large bores can be covered with centering discs. A centering disc can be understood to be an eccentric disc. Preferably, the discs are sized such that, in every position of the anchor rod relative to the center of the opening or bore, the opening or bore is completely covered, in addition to a projection selected according to static requirements. The shape of the outer contour of the centering disc or eccentric disc can also be designed according to the outer contour of any known geometric shape. Preferably, circular and / or square outer contours are given here for the centering discs.

[0028] The discs are not welded to the anchor plate. This also eliminates the need for subsequent corrosion protection repairs.

[0029] Since the anchor rods cannot transmit forces orthogonally due to the large bores, an additional structural element is required. A shear cleat is used. The shear cleat has a cross-section that meets the static requirements. In principle, all known cross-sectional profiles, as well as custom-made or welded cross-sectional profiles, are possible for the shear cleat. The shear cleat is welded to the underside of the column base. Because the column base plate rests directly on or is positioned on the first anchor plate, an opening is required in the first anchor plate to accommodate the shear cleat.

[0030] When constructing the foundation, it is necessary to produce the socket into which the shear lug extends and through which, after the support has been installed and the socket has been grouted, the loads can be transferred orthogonally to the anchor rod.

[0031] Preferably, the shear cleat is welded to the column base. This allows shear forces to be absorbed easily. The shear cleat can be designed as an I-beam. Other commercially available profile cross-sections that meet the structural requirements can also be used. In principle, all known cross-sectional profiles, as well as custom-made or welded cross-sectional profiles for the shear cleat, are possible.

[0032] Preferably, the second anchor plate and the anchor rods are embedded in the concrete foundation, with a gap between the top of the concrete foundation and the nuts on the underside of the first anchor plate. Sufficient clearance must be maintained between the underside of the nuts and the top of the concrete foundation to allow the nuts to rotate for leveling the upper anchor plates. This ensures a sufficiently strong structural connection between the foundation and the anchoring device.

[0033] Preferably, a socket is arranged between the concrete foundation and the column base, with the nuts on the underside of the anchor plates, the first anchor plate, and the shear lug being arranged or inserted within the socket. This allows the first anchor plate to be leveled to accommodate the column by turning the nuts on the underside of the anchor plate. To level the plate, the nuts on the top side of the first anchor plate must first be removed, as mentioned above. Preferably, the socket is filled with mortar or concrete. This is done after the steel structure or steel column has been aligned.

[0034] The inventive method for producing a load-bearing anchorage comprises the following steps: - Embedding an anchoring device, in particular as described above, in a concrete foundation, wherein the second anchor plate and the anchor rods or the further anchor plates and the anchor rods are embedded in the concrete foundation, and wherein there is a distance on the upper side of the concrete foundation to the nuts on the underside of the anchor plates of the first anchor plate, - Leveling or aligning the first anchor plate by turning the nuts on the underside of the first anchor plate, - Placing a column base on the first anchor plate, wherein a shear lug is arranged on the underside of the column base, which projects into a socket of the concrete foundation, and wherein the projecting anchor rods penetrate openings of the column base, - positioning of centering discs on the upper side of the support foot, and - Tightening the nuts on the top of the centering discs to fix the centering discs.

[0035] Before leveling or aligning the first anchor plate, the nuts located on the top of the first anchor plate are removed.

[0036] Preferably, to create the socket in the concrete foundation, a socket formwork is inserted into the central recess of the first anchor plate, and the socket formwork is removed again after the socket has been created in the concrete foundation. This allows the socket formwork to be reused.

[0037] The procedure preferably also includes the following step: - Filling the socket in the area between the underside of the support base and the top of the concrete foundation with shrinkage-free mortar or concrete.

[0038] The anchor rods protrude sufficiently far from the top of the foundation. When the steel column is placed on the foundation, the shear lug dips into the socket, which is dimensioned sufficiently so that, when the steel column is in its final position, there is a gap between the shear lug and the inner surface of the recess.

[0039] Once the steel support is aligned, the anchor bolts are fixed to the flange on the top side of the support base using the centering discs, and the foundation recess between the shear lug, the underside of the flange and the foundation recess is filled with shrinkage-free mortar / concrete.

[0040] The entire assembly is therefore carried out without any rework on the foundation, the flange (support base plate) and the anchors.

[0041] The insertion of a polystyrene block to create a corresponding recess in a foundation is known from the prior art.

[0042] In this case, a formwork device screwed to the anchor rods ensures that a socket of the required size and exactly in the right place is created when the foundation is poured.

[0043] Preferably, this formwork device consists of a material that effectively prevents the adhesion of concrete or mortar when using form release agent. Preferably, the material is weather-resistant.

[0044] The formwork is particularly preferably reusable. This is especially advantageous with standardized anchoring devices, as the formwork can be obtained from the same supplier / manufacturer who also supplies the anchoring device.

[0045] Furthermore, this type of case formwork eliminates the need for the elaborate cleaning of the case, along with the disposal of the polystyrene residue, that is required when using polystyrene blocks.

[0046] After the socket has been grouted, a support anchorage can be achieved that allows for a statically optimal load transfer of all occurring forces (x, y, z) into the foundation.

[0047] In another embodiment, a clamping point at the column base can be achieved. This is created by a statically required arrangement of the anchor rods in relation to the column cross-section.

[0048] Preferably, high-strength anchor rods of grades 8.8, 10.9, or 12.9 are used, although all other material grades according to the applicable standards may also be used. These must be selected according to the static requirements in terms of number, diameter, and anchorage length. Furthermore, the dimensioning of the secondary anchorage (second anchor plate) must be considered, whereby, in addition to the dimensions, the length of the secondary anchorage also depends on the concrete grade and the concrete reinforcement.

[0049] The dimensions of the anchoring device depend on both structural and static requirements.

[0050] The invention is explained in more detail below with reference to the accompanying drawings. These show: Fig. 1 a schematic view of an embodiment of an anchoring device of an anchoring according to the invention; Fig. 2 the schematic view of the anchoring device from Fig. 1 with another component; Fig. 3 a schematic view of an embedded anchoring device made of Fig. 2; Fig. 4 a cut AA from Fig. 3; Fig. 5 another schematic view of the embedded anchoring device; Fig. 6 a schematic view of an embodiment of the anchoring according to the invention; Fig. 7 a schematic view of the embodiment of the anchoring Fig. 6 with additions; Fig. 8 a cut BB through the anchorage from Fig. 7; and Fig. 9 a schematic view of a further embodiment of the device according to the invention Fig. 1

[0051] Fig. Figure 1 shows an anchoring device 1. The anchoring device 1 comprises four anchor rods 2 and a first anchor plate 3. The first anchor plate 1 can be understood as an anchor template. The first anchor plate 3 has a centrally arranged recess 4 and boreholes. Each anchor rod 2 is guided through one of the boreholes. A nut 6 is screwed onto each anchor rod 2. The nuts 6 serve as supports for the first anchor plate 3, with the nuts 6 being arranged on the underside of the anchor plate. In the Fig. 1. The nut 6 is hidden by the first anchor plate 3. However, they are, for example, in the Fig. Figure 4 shows that nuts 5 are also provided. The nuts 5 serve to fix or position the first anchor plate 3, with the nuts 5 being arranged on the upper side of the anchor plate.

[0052] The anchoring device 1 further comprises a second anchor plate 7. The second anchor plate can be understood as a back anchor or back anchor plate. The second anchor plate 7 has boreholes. Each anchor rod 2 is guided through one of the boreholes. Two nuts 11, 12 are screwed onto each anchor rod 2. The nuts 12 serve as supports for the second anchor plate 7, with the nuts 12 being located on the underside of the anchor plate. The nuts 11 serve to fix or position the second anchor plate 7, with the nuts 11 being located on the top side of the anchor plate.

[0053] The first anchor plate 3 is spaced apart from the second anchor plate 7. The boreholes of the anchor plates 3 and 7 are arranged along their edges.

[0054] Fig. Figure 2 shows the anchoring device 1. Fig. 1 with an additional component. The anchoring device 1 additionally has a socket formwork 15. The socket formwork 15 is inserted into the central recess 4 of the first anchor plate 3. The flanges or folded edges of the socket formwork 15 lie flush against the top of the first anchor plate 3. The socket formwork 15 has openings through which the anchor rods 2 penetrate. The nuts 5 are then fastened to the flanges on the top side of the anchor rods 2.

[0055] The socket formwork 15 serves to create a foundation recess, technically called a socket, in a concrete foundation, as described in more detail later.

[0056] Fig. Figure 3 shows an anchoring device 1 embedded in a concrete foundation 21 with socket formwork 15 made of Fig. 2.

[0057] First, the anchoring device 1 is embedded in the concrete foundation 21. The first anchor plate 3 is positioned above the concrete foundation 21 such that the nuts 6 located on its underside are positioned above the foundation 21. This allows the anchor plate 3 to be adjusted upwards (positive Z-direction in the plane of the plate) and downwards (negative Z-direction in the plane of the plate) along the longitudinal extent of the anchor rods 2 by turning the nuts 6. The nuts 5 are removed before leveling. Later, during column assembly, the nuts 5 are screwed back onto the anchor rods 2 using centering washers 26 to secure the column base 23.

[0058] The first anchor plate 3 is then leveled or aligned by turning the nuts 6 on the underside of the first anchor plate 3. To mount the support 22, all first anchor plates 3 located in the construction section are adjusted to the structurally required height by turning the nuts 6 on the underside of the anchor plates.

[0059] To create the socket 25 in the concrete foundation 21, the socket formwork 15 is inserted into the central recess 4 of the first anchor plate 3. The socket formwork 15 is removed again after the socket 25 has been created in the concrete foundation 21.

[0060] Fig. 4 shows a section AA from Fig. 3. The second anchor plate 7 and the anchor rods 2 are embedded in the concrete foundation 21 below the nuts 6 on the underside of the anchor plates of the first anchor plate 3. The surface of the concrete foundation 21 is spaced from the nuts 6 (distance 17).

[0061] Fig. Figure 5 shows the embedded anchoring device 1. Fig. 3, wherein the formwork 15 was removed again after the concreting process of the concrete foundation 21 and the nuts 5 were again resting on the top of the slab. The nuts 5 are not required at this point in the process.

[0062] Fig. Figure 6 shows a schematic view of an anchorage 20. The anchorage 20 comprises a concrete foundation 21, a column 22, in particular a steel column or a chambered concrete column, with a column base or column base plate 23 and the anchoring device 1, as described above.

[0063] When the support foot 23 of the column 22 is placed on the first anchor plate 3, a shear lug 24 is arranged on the underside of the column foot. The shear lug 24 projects into the socket 25 of the foundation 21. The projecting anchor rods 2 penetrate boreholes in the column foot 23.

[0064] A centering disc 26 is arranged on the upper side of each anchor rod 2 at the base of the support. The nuts 5 on the upper side of the anchor plates, which are rotatably mounted on the anchor rods 2, are then tightened until they make contact with the centering discs.

[0065] Fig. Figure 7 shows the anchoring 20 from Fig. 6 with additions. A cavity in the form of a socket 25 arranged between concrete foundation 21 and column base 23 (cf. Fig. 8) between the underside of the flange of the support foot 23 and the bottom of the foundation recess, is filled with mortar using shrinkage-free mortar 28 or alternatively with concrete.

[0066] Fig. Figure 8 shows a section BB through the anchorage made of Fig. 7.

[0067] A support base 23 of the support 22 rests on the first anchor plate 3, with a shear lug 24 arranged on the underside of the support base. The anchor rods 2 are guided through openings in the support base 23. Furthermore, centering discs 26 are arranged on the upper side of the support base. The centering discs 26 themselves are fastened to the anchor rods 2 by means of nuts 5.

[0068] The push cleat 24 has an I-profile.

[0069] The second anchor plate 7 and the anchor rods 2 are embedded in the concrete foundation 21 below the nuts 6 on the underside of the anchor plate of the first anchor plate 3, with a space existing between the surface of the concrete foundation 21 and the nuts 6.

[0070] As mentioned above, the socket 25 located between concrete foundation 21 and column base 23 is mortared or concreted.

[0071] The nuts 6 on the underside of the first anchor plate 3 and the first anchor plate 3 are arranged in the quiver 25.

[0072] Fig. Figure 9 shows a further embodiment of the anchoring device 1. The anchoring device 1 comprises four anchor rods 2 and a first anchor plate 3. The first anchor plate 1 can be understood as an anchor template. The first anchor plate 3 has a centrally arranged recess 4 and boreholes. Each anchor rod 2 is guided through a borehole. A nut 6 is screwed onto each anchor rod 2. The nuts 6 serve as supports for the first anchor plate 3, with the nuts 6 being arranged on the underside of the anchor plate. Furthermore, nuts 5 are provided. In the Fig. The nut 6 is concealed by the first anchor plate 3. The nuts 5 serve to fix or position the first anchor plate 3, with the nuts 5 being arranged on the top side of the anchor plate.

[0073] The anchoring device 1 comprises further anchor plates 7, 8, 9, 10. These further anchor plates can be understood as a back anchor or back anchor plates. Each of the anchor plates 7, 8, 9, 10 has a borehole. Each anchor rod 2 is guided through one of the boreholes. Two nuts 11, 12 are screwed onto each anchor rod 2. The nuts 12 serve as supports for the anchor plates 7, 8, 9, 10, with the nuts 12 being located on the underside of the anchor plates. The nuts 11 serve to fix or position the anchor plates 7, 8, 9, 10, with the nuts 11 being located on the top side of the anchor plates.

[0074] The first anchor plate 3 is spaced apart from the other anchor plates 7, 8, 9, 10. The boreholes of the anchor plates 3, 7, 8, 9, 10 are arranged along the edges of the anchor plates 3, 7, 8, 9, 10.

[0075] With the anchoring device 1 according Fig. Figure 9 shows another possibility for the design of the anchoring device.

[0076] Alternatively, at least two additional anchor plates 7, 8 can be used instead of the ones shown in the Fig. The four anchor plates 7, 8, 9, 10 shown in Figure 9 are used.

[0077] The first additional anchor plate 7 can then be used to attach anchor plates 7, 8. Fig. 9 replace and the second further anchor plate 8 can replace anchor plates 9, 10 from Fig. 9 replace. Furthermore, the first additional anchor plate 7 can also replace anchor plates 7, 9. Fig. 9 replace and the second further anchor plate 8 can replace anchor plates 8, 10 from Fig. Replace 9.

[0078] The other two anchor plates 7, 8 then have at least one opening, through each of the openings one of the anchor rods is guided and two further nuts per anchor rod fix the two anchor plates 7, 8 on the upper and lower sides of the anchor plates.

[0079] This demonstrates another possibility for the design of the anchoring device.

[0080] Alternatively, at least three additional anchor plates 7, 8, 9 can be used instead of those shown in the Fig. The four anchor plates 7, 8, 9, 10 shown in Figure 9 can be used. One of the anchor plates can have two openings, with an anchor rod 2 passing through each opening. The second and third anchor plates can each have one opening with an anchor rod 2 passing through it. This allows for a multitude of possible combinations with three anchor plates and four anchor rods.

[0081] Depending on the requirements and number of anchor rods, the second anchor plate can be divided into one, two, three, or more tieback plates. Depending on the configuration of the second anchor plate, individual tieback plates can have one, two, or more openings or bores for accommodating one, two, or more anchor rods, resulting in various combinations and arrangements of the number of individual tieback plates and the number of openings for anchor rods in each tieback plate. Furthermore, the outer contours of the individual tieback plates can be formed according to any known shape, with the design of the outer contour of each tieback plate being chosen differently, thus enabling a uniform outer contour or any desired combination of outer contours. Reference symbol list 1 anchoring device 2 anchor rods 3. First anchor plate (anchor template) 4 Exclusion 5 Mother 6 Mother 7 second anchor plate (rear anchoring) 8 third anchor plate (rear anchoring) 9 fourth anchor plate (back anchoring) 10 fifth anchor plate (back anchoring) 11 Mother 12 Mother 15 quiver formwork 17 Distance (free space) 20 Anchoring (load-bearing structure) 21 Concrete foundation 22 support 23 Support base (support base plate) 24 sliding lugs 25 quivers (cavity) 26 Centering disc 28 mortars

Claims

[1] Anchorage (20) comprising a concrete foundation (21), a support (22), in particular a steel support or a chambered concrete support, and an anchoring device (1), wherein the anchoring device (1) comprises at least two anchor rods (2) and a first anchor plate (3), wherein the first anchor plate (3) has a centrally arranged recess (4) and openings, wherein each anchor rod (2) is guided through an opening and each anchor rod (2) is supported on the underside of the first anchor plate (3) by a nut (6), wherein the anchoring device (1) further comprises either a) comprising a second anchor plate (7), wherein the second anchor plate (7) has openings, one of the anchor rods (2) being guided through each of the openings and two further nuts (11, 12) for each anchor rod (2), one of the two further nuts (11) on the upper side of the anchor plate and another of the two further nuts (12) on the lower side of the anchor plate, fixing the second anchor plate (7), or b) comprising further anchor plates (7, 8, 9, 10) corresponding to the number of anchor rods (2), each of the further anchor plates (7, 8, 9, 10) having an opening, through each of the openings of which one of the anchor rods (2) is guided and two further nuts (11, 12) each of the anchor rods (2), one of the two further nuts (11) on the upper side of the anchor plate and another of the two further nuts (12) on the underside of the anchor plate, securing the further anchor plates (7, 8, 9, 10), wherein a support foot (23) of the support (22) rests on the first anchor plate (3), wherein a shear lug (24) is arranged on the underside of the support foot, and the anchor rods (2) are guided through openings in the support foot (23), and wherein centering discs (26) are arranged on the upper side of the support foot and the centering discs (26) are fastened to the support by means of nuts (5). are attached to the anchor rods (2). [2] Anchorage (20) according to claim 1, wherein the first anchor plate (3) is spaced apart from the second anchor plate (7) and / or from the further anchor plates (7, 8, 9, 10). [3] Anchoring (20) according to claim 1 or 2, wherein the distance between the first anchor plate (3) and the second and / or further anchor plates (7, 8, 9, 10) is at least 20 cm. [4] Anchoring (20) according to one of the preceding claims, wherein the openings are arranged at the edges of the anchor plates (3, 7, 8, 9, 10). [5] Anchoring (20) according to one of the preceding claims, wherein a socket formwork (15) is inserted into the central recess (4) of the first anchor plate (3) and flanges of the socket formwork (15) rest flat on the top of the first anchor plate (3). [6] Anchoring (20) according to claim 5, wherein the socket formwork (15) has openings and the anchor rods (2) penetrate the openings. [7] Anchoring (20) according to one of the preceding claims, further comprising nuts (5) arranged on the upper side of the anchor plates or centering discs (26) and nuts (5) arranged on the upper side of the support base plates, wherein the nuts (5) are rotatably mounted on the anchor rods (2). [8] Anchoring (20) according to one of the preceding claims, wherein the shear lug (24) is welded to the support base (23). [9] Anchorage (20) according to one of the preceding claims, wherein the second anchor plate (7) and the anchor rods (2) or the further anchor plates (7, 8, 9, 10) and the anchor rods (2) are embedded in the concrete foundation (21), wherein there is a distance on the upper side of the concrete foundation to the nuts (6) on the underside of the anchor plates of the first anchor plate (3). [10] Anchoring (20) according to one of the preceding claims, wherein a socket (25) is arranged between the concrete foundation (21) and the column base (23) and the anchor plate underside nuts (6) of the first anchor plate (3) and the shear lug (24) are arranged in the socket (25). [11] Anchoring (20) according to claim 10, wherein the socket (25) is mortared or concreted. [12] Method for producing a load-bearing anchorage comprising the following steps: - Embedding an anchoring device (1) in a concrete foundation (21), wherein the anchoring device (1) comprises at least two anchor rods (2) and a first anchor plate (3), wherein the first anchor plate (3) has a centrally arranged recess (4) and openings, wherein each anchor rod (2) is guided through an opening and a nut (6) for each anchor rod (2) is mounted on the underside of the first anchor plate (3), wherein the anchoring device (1) further comprises either a) comprising a second anchor plate (7), wherein the second anchor plate (7) has openings, one of the anchor rods (2) being guided through each of the openings and two further nuts (11, 12) for each anchor rod (2), one of the two further nuts (11) on the upper side of the anchor plate and another of the two further nuts (12) on the lower side of the anchor plate, fixing the second anchor plate (7), or b) comprising further anchor plates (7, 8, 9, 10) corresponding to the number of anchor rods (2), each of the further anchor plates (7, 8, 9, 10) having an opening through which one of the anchor rods (2) is guided and two further nuts (11, 12) each for each anchor rod (2), one of the two further nuts (11) on the upper side of the anchor plate and another of the two further nuts (12) on the lower side of the anchor plate, securing the further anchor plates (7, 8, 9, 10), - wherein the second anchor plate (7) and the anchor rods (2) or the further anchor plates (7, 8, 9, 10) and the anchor rods (2) are embedded in the concrete foundation (21), and wherein there is a distance on the upper side of the concrete foundation to the nuts (6) on the underside of the anchor plates of the first anchor plate (3), - Aligning the first anchor plate (3) by turning the nuts (6) on the underside of the first anchor plate (3), - Placing a support base (23) of a support (22) onto the first anchor plate (3), wherein a shear lug (24) is arranged on the underside of the support base, which projects into a socket (25) of the concrete foundation (21) and wherein the projecting anchor rods (2) penetrate openings of the support base (23), - positioning of centering discs (26) on the upper side of the support foot, and - Tightening the nuts (5) on the top of the centering discs to fix the centering discs (26). [13] Method according to claim 12, wherein to produce the socket (25) in the concrete foundation (21) a socket formwork (15) is inserted into the central recess (4) of the first anchor plate (3) and wherein the socket formwork (15) is removed after the production of the socket (25) in the concrete foundation (21). [14] The method of claim 13, further comprising the following step: - Filling the socket (25) in the area between the underside of the support base (23) and the top of the concrete foundation (21) with shrinkage-free mortar or concrete.

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