Assembly for installing and anchoring precast reinforced concrete wall panels to a concrete slab or a ceiling slab, and building structures with this assembly

Abstract

The assembly includes a threaded rod (4) extending from the concrete or ceiling slab (1), a foot (5) mounted on the threaded rod (4) and a bushing (2) embedded in the panel (3). The bushing (2) has a cavity (12) for taking at least the upper part of the foot (5). The assembly can further include a mounting wedge (17) that passes through the panel (3), the bushing (2) and the foot (5) to determine and / or fix the mutual position of the foot (5) and the bushing (2). The mounting wedge (17) can be used to set the panels (3) in the mounting position, when it is possible to move them longitudinally, or in the fixing position, which is final.

Description

[0001] Assembly for installing and anchoring precast reinforced concrete wall panels to a concrete slab or a ceiling slab, and building structures with this assembly

[0002] Field of the Invention

[0003] The invention relates to the construction sector, specifically an assembly for installing and anchoring precast reinforced concrete wall panels to a concrete slab or a ceiling slab, or for anchoring two precast reinforced concrete wall panels to each other.

[0004] Background of the Invention

[0005] Precast reinforced concrete wall panels, whether solid, sandwich or hollow-core panels (hereinafter also referred to as the “panels” or “panel”) are installed on a concrete slab or a ceiling slab (hereinafter also referred to as the “slab”) using an assembly of elements which are used to connect the panels to the slab. Another precast reinforced concrete panel can be equivalently used for the slab.

[0006] A known assembly of these elements consists of a row of parallel vertical hollow cores that are formed in the panel and of steel rebars that are embedded in the slab and fit into the hollow cores in the panel. The hollows core in the panel are usually made by fitting double-sided corrugated tubes, so-called goosenecks with the inside diameter larger than the outside diameter of steel rebars, into the form in the manufacture of panels. The panels are installed by means of a crane so that the steel rebars are inserted into the hollow cores in the panel, and the bedding mortar is applied under the underside of the panel. The panels are guided by a signaller and a crane operator, together with workers who push the panels by hand into the correct position before seating on the slab. Then, when the panel is in place, but is still lifted by a crane, the position of the panel is further adjusted using crowbars. The hollow cores in the panel have openings on the upper side of the panel, through which high-strength expansion anchoring mortar is poured into the hollow cores after the panel is set in the precise position. Before it hardens and before the bedding mortar hardens, the panel is fixed in the precise position by external spacers. The spacers shall not be dismantled until the hardening process is finished. The main disadvantage of this well-known assembly of anchoring elements is that the installation of panels results in long technological breaks waiting for the hardening of the bedding mortar and expansion anchoring mortar, which greatly delay the installation process. The panel must stand still while the mortar hardens, otherwise the mortar will crack later. The panel is supported by spacers bolted to the panel wall. The spacers holding the panel also take quite a long time to install, and they also interfere with other works on the construction site. Another delay is caused by the necessity of accurately inserting the steel rebars into the slab before its concreting. The well-known assembly of anchoring elements also does not allow the panels to be directly guided into the precise position, the rebars in the hollow cores have a large mounting clearance and the panels must be handled until the correct position is reached. The well-known assembly also does not allow for height correction of the panels, or their levelling. The height correction of the panels above the slab must be done using levelling plates inserted between the slab and the underside of the panel. Finally, another disadvantage of this well- known assembly is that if the elements of steel rebars in the slab are not precisely fitted, which happens quite often on the construction site, the panel slides onto the elements of the rebars, gets stuck on them, and its removal is associated with large losses of time and the risk of overloading the crane.

[0007] Furthermore, various modifications of the assembly described above are known, which instead of corrugated tubes use short hollow inserts anchored in the panel using its own rebars and provided with openings towards the side of the panel. Although these modifications reduce the consumption of anchoring mortar, they do not solve the problem in terms of saving time and increasing the installation speed. On the contrary, these systems place even higher demands on the accuracy of fitting the rebars into the concrete or ceiling slab.

[0008] Another well-known assembly for connecting panels to the slab is the PEIKKO system known under the trade name “Wall Shoe”. This well-known assembly consists of a box-shaped bushing embedded in concrete in the wall panel and a threaded rod protruding from the slab instead of common steel rebar. A row of bushings is spaced side by side on the underside of the panel, i.e. the box is completely integrated in the panel. Each bushing is anchored in the panel with its own steel rebar. A row of threaded rods protrudes from the slab at equal intervals. Each bushing has an oval or square opening. The panel slides onto the threaded rods through these holes, the clearance in the holes is used to determine its precise position, and then the nuts on threaded rods are tightened through the levelling plates, which have the same cross-section as the inside of the bushing. A bedding mortar is applied to the slab before the panel is installed.

[0009] This assembly eliminates the main problem of installation, i.e. the use of anchoring mortar, and therefore it is not necessary to wait for it to harden during installation. However, other disadvantages remain. The assembly does not transmit moment forces until the bedding mortar under the panels has hardened, thus, spacers are still required.

[0010] In addition, it is not possible to guide the panels directly into the precise position during installation and it is necessary to additionally handle the panel after it is installed on the threaded rods. As with the well-known assemblies described above, it is necessary to place the threaded rods very precisely in the precise position in concreting the slab. Even with precise fitting of the threaded rods the thread of the threaded rod can be very easily damaged when it passes through the hole into the bushing. If it is not possible to repair the thread, then the panel must be dismantled, a part of the embedded threaded rod must be exposed, its end must be cut off, a new rod must be welded in, and the panel must be installed again. This is a very long delay on the construction site. Last but not least, even this well-known assembly does not allow correcting the height position of the panel directly during installation, and different levelling plates must be used for this correction.

[0011] The object of the invention is to eliminate the disadvantages of known solutions and to create an assembly that would allow the panels to be guided into the precise position straight away when they are installed without additional handling and without the risk of damage to the threaded rods. Furthermore, this assembly should enable an increase in the installation speed without waiting for the anchoring mortar to harden, while it should also enable the transmission of moment forces. Another object of the invention is to solve the height correction or levelling of the panels directly when they are installed. Summary of the Invention

[0012] The object is achieved by an assembly for fitting and anchoring a precast reinforced concrete wall panel to a concrete slab or a ceiling slab according to the invention. The summary of the invention is based on the assembly including a foot, which can be attached to the threaded rod, in addition to the threaded rod and the bushing. The foot is a shaped protrusion with a support plate, which is provided with an anchoring hole of oval or square shape for the passage of the end of the threaded rod with the possibility of its lateral movement. The assembly also includes a nut for attaching the foot to the end of the threaded rod. The bushing has a cavity into which the upper part of the foot up to the support plate fits with clearance. In the lower part of the cavity, there can preferably be oppositely arranged inclined leading surfaces creating a gradually narrowing entrance to the cavity for guiding the foot, and in the upper part of the cavity, there is preferably an injection hole connected to a nozzle for injecting anchoring expansion mortar into the cavity.

[0013] The advantage of this solution is that the feet are mounted on the threaded rods before the panel is installed, they are allowed to move to a precise geodetic position, and then the nuts are tightened, setting the feet in a final and precise position on the concrete or ceiling slab. When the panel is installed, the bushings are guided onto the feet, so the panel fits in precise position immediately and the threaded rods protected by feet and nuts cannot be damaged. The foot / bushing joint will hold the panel in the precise position due to gravity and frictional forces even when installing another panel. There is a bedding levelling mortar under each foot and the anchoring expansion mortar is injected through the injection holes into the hollow cores after the entire wall is installed and flows out of the bushing under the entire loading area of the panel. In a preferred embodiment, both the foot and the hollow core have a square cross-section, with the foot preferably having the shape of an inverted letter “U”, formed by a base and arms extending from the base, which are connected at their lower ends to the support plate, while the anchoring hole is arranged between the arms. The term “threaded rod” also includes the technical equivalent, which is a screw, and therefore also a kinematically reversed design, where the nut is in the concrete or ceiling slab, and the screw is used to fasten the foot to this nut from above.

[0014] In a preferred embodiment, the bushing is provided with at least one steel rebar protruding from the bushing, for fixing the bushing in the panel.

[0015] In another preferred embodiment of the invention, supporting surfaces are attached to the inclined leading surfaces of the bushing in the lower part of the bushing on both sides, while at least one steel rebar is welded to each supporting surface. This design increases the stability of the panel on the concrete or ceiling slab before the injection of the anchoring mortar.

[0016] In another preferred embodiment, the assembly further includes a mounting wedge, while the bushing is provided on both sides with mounting holes leading into the cavity and with associated mounting guides that have outlets on both opposite walls of the panel, thus creating a tunnel in the concrete of the panel for inserting the mounting wedge and its passage through the cavity of the bushing to determine the position of the foot in the position after the foot is inserted into the bushing. The foot is provided with a through hole for the passage of the mounting wedge. The mounting wedge locks the panel in its precise position and also allows for height correction of one or the other side of the panel. The perimeter of the through hole is defined by the underside of the base, the arms and the support plate, with the area of the through hole being larger than the cross-sectional area of the mounting wedge.

[0017] The mounting wedge, mounting holes, and mounting guides preferably have a square crosssection, with the mounting wedge having the shape of a four-sided prism, one wall of which has a wedge-shaped bevel along part of its length that spreads apart on the underside of the base. It is modified in such a way that it has rounded edges on both sides.

[0018] It is preferred when the bases of the four-sided prism have the shape of a rectangle, the shorter sides of which have a shorter length than the inside diameter of the mounting guides and mounting holes. This allows the use of the mounting wedge not only for fixation, but also for supporting the panel during its longitudinal handling before reaching the precise position. Therefore, one side of the bases is shorter.

[0019] At least one base of the four-sided prism is preferably provided with a mark line or a notch to facilitate orientation to the handling or fixing position of the mounting wedge.

[0020] When the mounting wedge is placed in the handling position, it is possible to move the entire panel longitudinally, while using the lateral play of the mounting wedge in the through hole of the foot for the movement.

[0021] It is also preferred when the foot is provided with outer bevels on both sides of the base and two inner bevels running at the same angle as the outer bevels of the foot are created in the upper part of the cavity of the bushing. This facilitates insertion of the foot into the cavity of the bushing and fixation of the panel in the correct position even before applying the mounting wedge.

[0022] Finally, another embodiment of the assembly under the invention is preferred, in which the given assembly additionally includes a transport mandrel, the upper part of which has an external shape complementary to the internal shape of the cavity of the bushing and the lower part of which is formed by two oppositely arranged parallel guides, between which there is a recess for fixing the transport mandrel on a double-row toothed panel transport carrier. The transport mandrel can be used for the transport of panels on a means of transport in such a way that the panels and the bushings are placed on the transport mandrels mounted on the transport carriers.

[0023] The present invention also relates to a building structure including a concrete slab or a ceiling slab and at least one precast reinforced concrete wall panel connected to the concrete or ceiling slab. Its core is based on the fact that the joint of the concrete or ceiling slab and the precast reinforced concrete wall panel is formed by the assembly described above, with at least two bushings integrated in the panel in a row on its underside, at least two threaded rods being integrated in a row in the concrete or ceiling slab at intervals corresponding to the positions of the bushings in the panel, and the feet are fastened to the threaded rods by means of nuts and inserted into the cavities of the bushings, with a layer of bedding levelling mortar between the support plate of each foot and the concrete or ceiling slab. This design is distinguished by the speed of installation. In a preferred embodiment of the building structure under the invention, a mounting wedge for positioning and / or fixing the panel passes through the panel, foot and bushing.

[0024] In another preferred embodiment of the building structure, a load-bearing expansion mortar is injected through the cavity of the bushing to increase the load-bearing capacity of the panel.

[0025] The assembly and the building structure under the invention allow the panels to be guided into the precise position straight away when they are installed, without additional handling and, in particular, without the risk of damage to the threaded rods. Furthermore, this assembly and building structure under the invention allow for increased installation speed, when it is possible to install the panels of all walls on one floor at once, and only then inject the load-bearing expansion mortar under the panels. The moment forces of the panels can be transmitted using the mounting wedge. The thickness of the layer of bedding levelling mortar under the support plates of the feet can be used for the purposes of height correction or levelling of the panels in advance.

[0026] Explanation of drawings

[0027] The invention will be explained in detail by drawings which illustrate:

[0028] Fig. 1 perspective view of the foot,

[0029] Fig. 2 section view of the foot fixed to the concrete or ceiling slab,

[0030] Fig. 3 perspective view of the bushing with welded steel rebar before embedding into the panel,

[0031] Fig. 4 section view of the bushing embedded in the panel, in a plane perpendicular to the wall of the panel,

[0032] Fig. 5 section view of the bushing embedded in the panel and mounted on the foot of the concrete slab, in a plane parallel to the wall of the panel, Fig. 6a to Fig. 6d procedure for installing the panel on the concrete or ceiling slab,

[0033] Fig. 7 section view of the panel in a plane perpendicular to the wall of the panel, with the wedge in the handling position,

[0034] Fig. 8 perspective view of the wedge in the mounting position,

[0035] Fig. 9 perspective view of the wedge in the fixing position rotated by 90° compared to Fig.

[0036] 8,

[0037] Fig. 10 view of the panel installed on the concrete or ceiling slab with a partial section view in the area of the bushing / foot joint,

[0038] Fig. 11 view of the transport mandrel mounted on the transport carrier,

[0039] Fig. 12 representation of the forces applied by the wedge in the fixing position to the bushing and to the base of the foot.

[0040] Examples of the invention embodiments

[0041] The basis of the assembly for fitting and anchoring the precast reinforced concrete wall panel

[0042] 3 to the concrete or ceiling slab 1 is the bushing 2, shown in Fig. 3, and the foot 5 shown in Fig. 1. In both cases, it is a welded steel sheet.

[0043] The foot 5 has an upper part shaped generally as a protrusion fitting into the cavity 12 of the bushing 2. The protrusion can have different geometric shapes, but preferably has the shape of an inverted letter “U”, the base 6 of which is at the top and the arms 8 of which are directed downwards, where they are welded to the support plate 9. In the middle of the support plate 9, there is an anchoring hole 10 for mounting on a threaded rod 4, which is embedded in concrete in the concrete or ceiling slab 1. The anchoring hole 10 shown in Fig. 1 has an oval shape, but it can also have a square shape. The length of the anchoring hole 10 is greater than the diameter of the threaded rod 4. The foot 5 is fixed to the concrete or ceiling slab 1 by embedding or drilling into the concrete or ceiling slab 1 and using chemical anchors to fix the threaded rods

[0044] 4 at precise intervals, in the targets of the bedding levelling mortar 26, as shown in Fig. 2. The thickness of the bedding levelling mortar 26 precisely defines the height of the panels 3. The foot 5 is placed on the protruding end of the threaded rod 4, moved in the anchoring hole 10 to the precise geodetic position, and tightened with the nut 11. For each panel 3, which typically has two bushings 2, usually two feet 5 are fitted to the concrete or ceiling slab 1. The number of bushings 2 and feet 5 for one panel 3 can be even higher, depending on the dimensions and load.

[0045] In another non-illustrated embodiment, the threaded rod 4 with the nut 11 can be replaced by a technically equivalent means, i.e. screw. In this case, the transport anchors of the panels 3 of the previous floor can be used, on which other panels 3 are mounted as on the concrete or ceiling slab 1. In this case, the foot 5 is mounted with a screw in the nut of the transport anchor.

[0046] The bushing 2, which is mounted on the foot 5, is embedded in concrete in the panel 3, as shown in Fig. 4. The bushing 2 is, as shown in Fig. 1, formed by a hollow steel weldment. The cavity 12 of the bushing 2, open downwards into the inlet for taking the foot 5, is narrower at the top and has a rectangular cross-section. In the lower part, it widens in a trapezoidal shape, with inclined leading surfaces 14, which go into level supporting surfaces 16, sitting on the support plate 9 of the foot 5. Steel rebars 15 are welded to the supporting surfaces 16, but they can be welded to any part of the bushing 2. In the upper part, the bushing 2 has an injection hole 24 leading into the cavity 12. The injection hole 24 outside the bushing 2 is followed by a nozzle 22 with the outlet from the wall of the panel 3 after the bushing 2 has been embedded in concrete in the panel 3, as shown in Fig. 4. A load-bearing expansion mortar (not shown) is injected through the nozzle 22 and the injection hole 24 into the cavity 12, which flows out through the entrance of the cavity 12 under the panels 3 and pours the panels 3 under their entire loading area. The advantage of the assembly under the invention consists, among other things, in the fact that this step does not have to be carried out after the installation of each panel 3 and wait for hardening before the next panel 3 can be installed. On the contrary, the injection of the loadbearing expansion mortar is carried out only after the entire wall has been fitted with panels 3, by gradual injection into all cavities 12 of the bushings 2 of all panels 3 at once.

[0047] In a preferred embodiment of the assembly, in which the bushing 2 and the foot 5 are fixed by means of a mounting wedge 17, the bushing 2 also has mounting holes 18 under the injection hole 24, which lead into the cavity 12, and to which the mounting guides 19 are connected outside the bushing 2 for inserting the mounting wedge 17 and its passage through the cavity 12 and the bushing 2 and through the through hole 23 of the foot 5 to determine the position of the foot 5 after it is inserted into the bushing 2. The mounting guides 19 lead on the opposite walls of the panel 3, so they form a tunnel leading from one side of the panel 3 to the other.

[0048] The entire assembly, including the insertion of the mounting wedge 17 after inserting the feet 5 into the bushings 2, is shown in Fig. 5, the procedure for sliding and inserting the mounting wedge 17 is then shown in Fig. 6a to 6d.

[0049] The mounting wedge 17, the mounting holes 18 and the mounting guides 18 have a square cross-section in the embodiment shown in the example, but in another embodiment not shown they may have another appropriate cross-section.

[0050] However, the four-sided design of the mounting wedge 17 is preferred as it enables not only fixation, but also positioning or longitudinal movement of the panel 3. For this purpose, the mounting wedge 17 has the shape of a four-sided prism, the bases of which have the shape of a rectangle, the shorter sides of which have a shorter length than the inside diameter of the mounting holes 18 and the mounting guides 19. The design of the mounting wedge 17 is shown in Fig. 8 and Fig. 9. In the position shown in Fig. 8, the mounting wedge 17 is “horizontally” inserted into the mounting guides 19 and the mounting holes, i.e. with clearance, as shown in Fig. 7. In this so-called mounting position, the panel 3 can be moved because the mounting wedge 17 does not completely fix the foot 5 in the bushing 2.

[0051] In the position shown in Fig. 9, the mounting wedge 17 is “upright” inserted into the mounting guides 19 and the mounting holes 18, and after it is stopped, the wedge-shaped bevel 21 of the mounting wedge 17 spreads apart on the underside 6a of the base 6 of the foot 5 and at the same time on the lower edges of the mounting holes 18 and mounting guides 19 and presses the bushing 2 with the supporting surfaces 16 on the support plate 9 of the foot 5. This fixes the joint of the foot 5 and the bushing 2, as shown in Fig. 6d, and in particular in Fig. 12.

[0052] In order to make the orientation of the mounting wedge 17 to the mounting position or to the fixing position easy to recognize, at least one base of the four-sided prism forming the mounting wedge 17 is provided with a mark line or a notch 20 for identifying the position when rotated by 90°.

[0053] In order to handle the panel 3 when the mounting wedge 17 is in the mounting position, there is a through hole 23 in the foot 5 whose area is larger than the cross-sectional area of the mounting wedge 17. The perimeter of the through hole 23 is defined by the underside 6a of the base 6, the arms 8 and the support plate 9 of the foot 5. The base 6 also has the shape of a foursided prism, and its underside 6a facing the through hole 23 has rounded edges for better sliding of the mounting wedge 17.

[0054] Both the foot 5 and the bushing 2 can have different geometric shapes, but preferably have the shape of a flat body with a square cross-section, while the foot 5 is provided with outer bevels 7 on both sides of the base 6 from above, and the bushing 2 has two inner bevels 13 running in the upper part of the cavity 12 at the same angle as the outer bevels 7 of the foot 5, as shown in Fig. 1 and in Fig. 5.

[0055] The addition of the assembly according to the invention is the transport mandrel 25 as shown in Fig. 11, which is used to easily transport the panels 3 with embedded bushings 2 on a truck. The transport mandrel 25 is similar to the foot 5, but its upper part has an external shape complementary to the internal shape of the cavity 12 of the bushing 2, i.e. that it fits into the cavity 12 basically without clearance, or with just a little clearance to allow bushing 2 to slide in and out. The transport mandrel 25 is formed by a flat steel strip in which there is a handling hole 27 to hold the transport mandrel 25.

[0056] The lower part of the transport mandrel 25 is specifically shaped for its mounting on the doublerow toothed transport carrier 30, which is also shown in Fig. 11, and which is installed on the loading surface of a truck, not shown. For panels 3 fitted with two bushings 2, two parallel transport carriers 30 are used. Two transport mandrels 25 provided in the lower part with guides 28 delimiting the recess 29 are inserted into the respective tooth spaces on the transport carrier 30, the bushings 2 embedded in concrete in the panel 3 are placed on them and the panel 3 is held on the feet 5 by its own weight and friction during the transport. During unloading, the panel 3 is simply lifted by crane. This accelerates the loading and unloading of panels 3 and therefore the entire installation.

[0057] A building structure, including the concrete or ceiling slab 1 and the precast reinforced concrete wall panel 3 attached to the concrete or ceiling slab 1 is shown in Fig. 10.

[0058] Industrial applicability

[0059] The assembly and building structure under the invention can be used in the construction industry, specifically for fitting and anchoring precast reinforced concrete wall panels to a concrete or ceiling slab or to connect two wall panels to each other.

[0060] List of reference numerals in the drawings

[0061] 1 concrete slab or ceiling slab

[0062] 2 bushing

[0063] 3 panel

[0064] 4 threaded rod

[0065] 5 foot

[0066] 6 base

[0067] 6a underside of the base

[0068] 7 outer bevel of the foot

[0069] 8 arm

[0070] 9 support plate

[0071] 10 anchoring hole of oval or square shape

[0072] 11 nut

[0073] 12 cavity of the bushing

[0074] 13 inner bevel of the bushing

[0075] 14 inclined leading surface

[0076] 15 steel rebar

[0077] 16 supporting surface mounting wedge mounting hole mounting guide notch wedge-shaped bevel nozzle through hole injection hole transport mandrel bedding levelling mortar handling hole in the transport mandrel guide in the transport mandrel recess in the transport mandrel panel transport carrier shorter side of the rectangular base of the mounting wedge

Claims

CLAIMS1. An assembly for installing and anchoring a precast reinforced concrete wall panel (3) to a concrete or ceiling slab (1), including a threaded rod (4) and a bushing (2), characterized in that it further includes a foot (5) which can be attached to a threaded rod (4) ), the foot (5) has a support plate (9) provided with an anchoring hole (10) of an oval or square shape for the passage of the end of the threaded rod (4) with the possibility of its lateral movement; and the assembly also includes a nut (11) for fixing the foot (5) to the end of the threaded rod (4), with the bushing (2) having an open cavity (12) with an inlet for taking at least the upper part of the foot (5).

2. The assembly according to claim 1, characterized in that the foot (5) has a square crosssection.

3. The assembly according to claim 2, characterized in that the foot (5) has the shape of an inverted letter “U”, formed by a base (6) and arms (8) extending from the base, which are connected at their lower ends to the support plate (9), while the anchoring hole (10) is arranged between the arms (8).

4. The assembly according to any of claims 1 to 3, characterized in that the bushing (2) is provided with at least one steel rebar (15) protruding from the bushing (2), for fixing the bushing (2) in the panel (3).

5. The assembly according to any of claims 1 to 4, characterized in that inclined leading surfaces (14) are oppositely arranged in the lower part of the cavity (12) and create a gradually narrowing entrance to the cavity (12).

6. The assembly according to any of claims 4 to 5, characterized in that supporting surfaces (16) are attached to the inclined leading surfaces (14) of the bushing (2) in the lower part of the bushing (2) on both sides, while at least one steel rebar (15) is welded to each supporting surface (16).

7. The assembly according to any of claims 3 to 6, characterized in that the foot (5) is provided with outer bevels (7) on both sides of the base (6) and two inner bevels (13) running at the same angle as the outer bevels (7) of the foot (5) are created in the upper part of the cavity (12) of the bushing (2).

8. The assembly according to any of claims 1 to 7, characterized in that the bushing (2) has an injection opening (24) leading into the cavity (12) in the upper part, which is followed by a nozzle (22) for injecting the load -bearing expansion mortar through the cavity (12) of the bushing (2).

9. The assembly according to any of claims 1 to 8, characterized in that it further includes a mounting wedge (17), while the bushing (2) is provided on both sides with mounting holes (18) leading into the cavity (12) and associated mounting guides (19) for inserting the mounting wedge (17) and its passage through the cavity (12) of the bushing (2), and the foot (5) is provided with a through hole (23) for the passage of the mounting wedge (17) and for determining and / or fixing the mutual position of the foot (5) and the bushing (2).

10. The assembly according to claim 3 and 9, characterized in that the perimeter of the through hole (23) is defined by the underside (6a) of the base (6), the arms (8) and the support plate (9), with the area of the through hole (23) being larger than the cross-sectional area of the mounting wedge (17).

11. The assembly according to claim 9 or 10, characterized in that the mounting wedge (17), mounting holes (18) and mounting guides (19) have a square cross-section.

12. The assembly according to claim 11, characterized in that the mounting wedge (17) has the shape of a four-sided prism, one wall of which has a wedge-shaped bevel (21) at least along part of its length, and the underside (6a) of the base (6) of the foot (5) has rounded edges on both sides.

13. The assembly according to claim 12, characterized in that the bases of the four-sided prism have the shape of a rectangle, the shorter sides (s) of which have a shorter length than the inside diameter of the mounting guides (19) and mounting holes (18).

14. The assembly according to claim 13, characterized in that at least one base of the foursided prism is provided with a mark line or a notch (20).

15. The assembly according to any of claims 1 to 14, characterized in that it further includes a transport mandrel (25) for transporting the panel (3), the upper part of which has an external shape complementary to the internal shape of the cavity (12) of the bushing (2) and the lower part of which is formed by two oppositely arranged parallel guides (28), between which there is a recess (29) for fixing the transport mandrel (25) on a double-row toothed transport carrier (30) of the panel (3).

16. The assembly according to claim 15, characterized in that the transport mandrel (25) is provided with a handling hole (27).

17. A building structure comprising a concrete or ceiling slab (1) and at least one precast reinforced concrete wall panel (3) connected to the concrete or ceiling slab (1), characterized in that the joint of the concrete or ceiling slab (1) and the precast reinforced concrete wall panel (3) is formed by an assembly of any of claims 1 to 16, wherein at least two bushings (2) are integrated in the panel (3) in a row on its underside, at least two threaded rods (4) are integrated in a row in the concrete or the ceiling slab (1) at intervals corresponding to the positions of the bushings (2) in the panel, and the feet (5) are fastened to the threaded rods (4) by means of nuts (11) and arranged in the cavities (12) of the bushings (2), with a layer of bedding levelling mortar (26) between the support plate (9) of the foot (5) and the concrete or ceiling slab (1).

18. The building structure according to claim 17, characterized in that a mounting wedge (17) passes through the panel (3), the foot (5) and the bushing (2) for fixing the panel (3) to the concrete or ceiling slab (1).

9. The building structure according to claim 17 or 18, characterized in that the cavity (12) of the bushing (2) and the loading area between the panel (3) and the concrete or ceiling slab (1) is filled with load-bearing expansion mortar to increase the strength of the joint of the panel (3) and the concrete or ceiling slab (1).

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