Connector for fixing reinforced concrete columns, beams or walls and mounting arrangement for fixing reinforced concrete columns, beams or walls

Abstract

A connector for fixing reinforced concrete columns, beams or walls to a support is disclosed, the connector comprising a base (1a, 1b, 1c) with a centrally formed mounting hole (2) for a mounting bolt. Two opposite side walls (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) are seated in the base (1a, 1b, 1c), along its side edges, each of the walls having at least one attachment assembly (4) with a connecting rod (6). The side walls (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) are bent outwards with respect to the side edges of the base and are mutually symmetrical with respect to the longitudinal axis (10) of the mounting hole (2). In addition, the centre of the mounting hole (2) and the centres of gravity of at least one of the attachment assemblies (4) on both sides of the base (1a, 1b, 1c) coincide with the transverse axis (11) of the mounting hole (2). A mounting arrangement for fixing reinforced concrete columns, beams or walls is also disclosed, wherein the connectors are disposed in the cross- section of the column, beam or wall along the sides thereof and such that the centres of the mounting holes of the connectors are aligned on one axis.

Description

[0001] Connector for fixing reinforced concrete columns, beams or walls and mounting arrangement for fixing reinforced concrete columns, beams or walls

[0002] The subject-matter of the invention is a connector for fixing reinforced concrete columns, beams or walls to a support, such as a foundation, column or another wall. In particular, the connector is intended to be placed in the initial or final zone of a column, beam or wall. In addition, the subject-matter of the invention is a mounting arrangement for fixing reinforced concrete columns, beams or walls, equipped with an assembly of connectors that are incorporated into the structure of a column, beam or wall.

[0003] Prior art solutions for connectors are commonly known, the connectors placed at the side walls and at the corners of the column or only at its corners. The role of the connector is to ensure the transfer of internal forces present in the implemented construction connection. For example, EP3851601 Al, EP2633124 Al, EP3020867 Al and EP3997273 Bl disclose connectors comprising a base equipped with a hole for an anchoring bolt and a housing or comer side wall perpendicular to the base, with connecting rods fixed to said housing or wall and used to connect the base of the connector and the reinforced concrete column to each other.

[0004] Furthermore, EP1531213 Al discloses a connector for fixing a column, the connector having a base plate, two separate and substantially opposite lateral plates and reinforcement rods embedded therein. The base plate is formed in the shape of a polygon and equipped in its central area with a hole for a screw fixing the base in the support.

[0005] As for the solutions discussed above, due to the presence of horizontal forces in the connector resulting from its construction, the structure of the connectors requires the use of additional elements, for example in the form of corner or rear rods. The role of these elements is to compensate for the eccentricity of the axis of the hole in the connector base and the axis of the centre of gravity of the attachment set. This significantly increases the costs of producing the connector.

[0006] The magnitude of the resulting eccentricity is usually the sum of two distances in the connector structure. The first part of the magnitude of the summed eccentricity is the structural eccentricity, which is the distance between the axis of the hole in the base of the connector and the axis of the centre of gravity of the connecting set of the connector. The second part of the summed eccentricity, known as the mounting eccentricity, consists, on the other hand, of the distance between the axis of the mounting bolt incorporated into the support and the axis of the hole in the base of the connector (marked in Fig. 13 as distance “e”). Usually, a hole with a diameter larger than the diameter of the bolt is used in the connectors, which is due to the need to allow for tolerances in the incorporation of the connecting elements, i.e. both the bolts and the connectors incorporated into a column, wall or beam. For this reason, it is difficult or even impossible to completely reduce the mounting eccentricity from a practical point of view.

[0007] Another inconvenience associated with the connectors for fixing reinforced concrete columns, beams or walls is that the use of a single type of connector (primarily intended to be incorporated into the corner of the column) in the initial or final mounting section, when there are more than four connectors in the cross-section, results in inefficient use of the connectors in the middle sections of the cross-section because their geometrical shape is not adapted to this anchoring zone. Due to the aforementioned eccentricity, the connector’s overall dimensions are unnecessarily enlarged, which, in combination with additional rear or corner components to compensate for the eccentricity, means that the columns or walls into which these connectors are incorporated require enlarged crosssections. In particular, this applies to connectors positioned on opposite side walls of a cross section of a column or wall. Additionally, when incorporated on the side, the well- known connectors, equipped with additional rear elements and positioned opposite each other, limit the dimension of a given side of the column to the area defined by the double dimension (i.e. relating to the length of the horizontal projection) of these connectors. This stems from the fact that such connectors, due to the well-known orthogonal arrangement of the anchors in the support on the rectangular grid, are aligned on one axis opposite each other. Consequently, an additional rear element acts unfavourably with side positioning.

[0008] On the other hand, the use of elements without additional rear elements in the corner parts and at the same time side parts of the column, as described above, is also not favourable for the geometry of the column. This is due to the fact that reinforced concrete columns always comprise main reinforcement bars and stirrups. Due to the presence of stirrups in particular, these connectors must be recessed at the comers towards the centre of the cross-section, which also necessitates moving the connectors positioned on the side of the column to maintain the well-known orthogonal arrangement of the anchors in the support on the rectangular grid.

[0009] Based on the above, the object of the present invention is to develop a new and robust connector structure for fixing reinforced concrete columns, beams or walls free of the disadvantages known in the prior art. In particular, the object of the invention is to propose a connector in which the problem of horizontal forces resulting from the construction of the connector (mounting and structural eccentricities) is solved by eliminating the incorporation of additional rear elements. Furthermore, the aim of the invention is to provide effective (i.e. dimensionally reduced) cross-sections of reinforced concrete columns or walls in a final mounting arrangement for fixing reinforced concrete columns, beams or walls.

[0010] According to the first subject-matter of the invention, the connector for fixing reinforced concrete columns, beams or walls to a support comprises a base with a mounting hole formed in its central area for a mounting bolt, wherein two opposite side walls are seated in the base along its side edges, each of said side walls having at least one attachment assembly equipped with at least a connecting rod, wherein the connecting rod extends vertically upwards and is seated substantially perpendicular to the plane of the base. The connector is characterised by the fact that the side walls are bent outwards relative to the base and are mutually symmetrical with respect to the longitudinal axis of the mounting hole, which ensures transmission of horizontal forces arising from the mounting eccentricity, without the need for additional rear elements in the connector structure. In addition, the centre of the mounting hole and the centres of gravity of at least one of the attachment assemblies on both sides of the base are located along one axis coinciding with the transverse axis of the mounting hole.

[0011] It is preferred that the side walls are bent outwards once.

[0012] It is equally preferred that the side walls are bent outwards at least twice.

[0013] It is preferred that the base is polygonal in shape, where its side edges are shaped according to the shape of the side walls.

[0014] In a preferred realisation, each of the side walls has one attachment assembly whose centre of gravity is located on the axis coinciding with the transverse axis of the mounting hole.

[0015] It is preferred that the attachment assembly is seated on the outer side of the side wall.

[0016] It is equally preferred that the attachment assembly is seated inside the side wall.

[0017] It is preferred that the attachment assembly is a connecting rod.

[0018] It is also preferred that the attachment assembly is a connecting rod connected to the side wall by a sleeve with a threaded internal hole.

[0019] In addition, it is preferred that the mounting hole has a diameter larger than the diameter of the mounting bolt, which ensures that the dimensional tolerances of standard mounting bolts are allowed for.

[0020] Furthermore, it is preferred that the connector is symmetrical at least along the axis coinciding with the longitudinal axis of the mounting hole. It is also preferred that the connector is symmetrical along the axis coinciding with the transverse axis of the mounting hole.

[0021] In a preferred realisation, the base and side walls of the connector are separate steel elements, connected to each other by welding.

[0022] However, it is equally preferred that the base and walls are a single steel element, made by casting or hot forging.

[0023] It is additionally preferred that the elements of the attachment assembly are made of steel or composite material.

[0024] According to the second subject-matter of the invention, there is provided a mounting arrangement for fixing reinforced concrete columns, beams or walls to a support, wherein connectors for fixing to the support are placed in the cross-section of the column, beam or wall, where the connector comprises a base with a mounting hole formed in its central area for a mounting bolt, and two opposite side walls are seated along the side edges of the base, each of said side walls having at least one attachment assembly equipped with at least a connecting rod, wherein the connecting rod extends vertically upwards and is seated substantially perpendicular to the plane of the base. The arrangement is characterised in that the side walls of the connector are mutually symmetrical and bent outwards with respect to the base of the connector, where the centre of the mounting hole and the centres of gravity of at least one of the attachment assemblies on both sides of the base are located along one axis coinciding with the transverse axis of the mounting hole. Furthermore, at least one connector is incorporated into along at least one of the sides of the cross-section of the column, beam or wall, the connectors being disposed such that the centres of the mounting holes of the co-linear connectors are aligned on one axis.

[0025] It is preferred that the connectors are disposed in the cross-section of the base of the column, beam or wall with no comer placement in the cross-section of the column, beam or wall. It is also preferred that the connectors are disposed in the cross-section of the column, beam or wall exclusively along the lateral side of the cross-section of the column, beam or wall.

[0026] It is additionally preferred that the connectors are disposed in the cross-section of the column, beam or wall in an orthogonal arrangement on a rectangular grid, with the centres of the mounting holes of the co-linearly disposed connectors lying on one axis.

[0027] In addition, it is preferred that the connectors are incorporated into the cross-section of the column, beam or wall using known connectors of a different structure. The connector structure used makes it thus possible to create mounting arrangements both from independent connectors of the invention, as well as in mixed arrangements with commonly used connectors, including those with a structure comprising additional corner or rear elements for compensating for the forces induced by the eccentricity.

[0028] The experimental tests by the inventors show that the most preferred positioning of the connectors is when well-known connectors with rear elements are situated at the corners of the column and the connectors of the invention are situated at the side. It is also preferred to use only the connectors of the invention in the wall section, the connectors being located only on the side with no connectors situated at the corners. The inventors also noted that said mixed configurations enable a significant reduction in the crosssections of reinforced concrete columns, beams or walls. The reduction in the resulting dimensions of the cross-section of the column or wall is particularly the case with the connectors positioned on the opposite sides of the cross-section of the wall or column.

[0029] The subject-matter of the invention is illustrated in the embodiments in the drawing in which Fig. 1 shows the first embodiment of the connector for fixing reinforced concrete columns, beams or walls in a) axonometric view and b) plan view, Fig. 2 shows the second embodiment of the connector in a) axonometric view and b) plan view, Fig. 3 shows the third embodiment of the connector in a) axonometric view and b) plan view, Fig. 4 shows the forth embodiment of the connector in a) axonometric view and b) plan view, Fig. 5 shows the fifth embodiment of the connector in a) axonometric view and b) plan view, Fig. 6 shows the sixth possible embodiment of the connector in a) axonometric view and b) plan view, Fig. 7 shows the seventh possible embodiment of the connector in a) axonometric view and b) plan view, Fig. 8 shows the eighth possible embodiment of the connector in a) axonometric view and b) plan view, Fig. 9 shows the ninth possible embodiment of the connector in a) axonometric view and b) plan view, Fig. 10 shows the tenth possible embodiment of the connector in a) axonometric view and b) plan view, Fig. 11 shows the eleventh possible embodiment of the connector in a) axonometric view and b) plan view, Fig. 12 shows the twelfth possible embodiment of the connector in a) axonometric view and b) plan view, Fig. 13 is a schematic representation of how the mounting bolt, which defines the mounting eccentricity e, is fixed in the hole of the base in a) axonometric view and b) plan view, and Fig. 14 shows a mounting arrangement for fixing reinforced concrete columns, beams or walls, the arrangement equipped with an assembly of connectors incorporated into the cross-section of a column, beam or wall in a) a mixed arrangement along all sides in the column section, b) a mixed arrangement along two sides in the column section, c) an arrangement composed exclusively of the connectors of the invention disposed along two sides of the column, d) an arrangement composed exclusively of the connectors of the invention disposed along all four sides of the column e) a wall arrangement composed exclusively of the connectors of the invention, and f) a wall arrangement, in two rows in a staggered arrangement, composed exclusively of the connectors of the invention, respectively.

[0030] Fig. 1 shows the first embodiment of the connector 100 for fixing reinforced concrete columns, beams and walls. The connector 100 comprises a base 1 a with a circular mounting hole 2 formed in its central area for a mounting bolt anchoring in the support (not shown). For the sake of clarity of the disclosure - for the purposes of both the present and subsequent embodiments of the invention - it is to be understood that the mounting hole 2 being centrally formed means that the mounting hole is located within the base la and is located in its substantially central area. Furthermore, it is evident to a person skilled in the art of the invention that the dimension of the mounting hole 2 is selected to correspond to the anchoring element used as part of the connection to the support, with the required dimensional tolerances being allowed for. It is therefore always a hole that is enlarged relative to the diameter of the mounting bolt.

[0031] Two opposite side walls 3a are seated in the base la, along the side edges thereof, said walls, according to the invention, being made as separate elements (for example, machined elements), which are connected by welding or pressure welding to the base la. Similarly, the side walls 3a may be, together with the base la, a single integral element, made by casting, by hot forging, or by any other known technique for the manufacture of steel structures.

[0032] The side walls 3a are shaped walls, formed as bent outwards from the base la and mutually symmetrical with respect to the axis coinciding with the longitudinal axis 10 of the mounting hole 2. According to the embodiment under discussion, the side walls 3a have a bending point located in the middle of their length and then they extend angularly outwards from the base la symmetrically with respect to the axis coinciding with the transverse axis 11 of the mounting hole 2. The base la is shaped in such a way that its side edges correspond to the shape of the side walls 3a. The arrangement presented shows biaxial symmetry of the connector 100.

[0033] Connecting rods 6 forming the attachment assembly 4 of the connector 100 are seated at the level of the bending points in the side walls 3a, on the outer side of the side walls 3a. The connecting rods 6 are seated perpendicular to the surface of the base la and extend vertically upwards from it. The connector 100 is constructed such that the centres of gravity of the connecting rods 6 and the centre of the mounting hole 2 are placed on one axis coinciding with the transverse axis 11 of the mounting hole 2.

[0034] Fig. 2 shows the second embodiment of the connector 100, the structure of which is very similar to that discussed in the first embodiment. The difference is in the way in which the connecting rods 6 are fixed, said rods being seated inside the side walls 3b, in specially shaped cut-outs in the side walls 3b, formed at their bending points. Analogously to the connector 100 according to the first embodiment, also in this configuration, the connector 100 has biaxial symmetry and the centre of the mounting hole 2 and the centres of gravity of the connecting rods 6 are placed on one axis coinciding with the transverse axis 11 of the mounting hole 2.

[0035] According to Figs. 3 and 4, further embodiments, i.e. the third and fourth embodiment of the connector 100 of the invention are shown, relating to the previously described first and second embodiments, respectively. In the case of the third embodiment (according to Fig. 3), the construction of the connector 100 is substantially similar to the structure according to the first embodiment (according to Fig. 1) but in this arrangement the connecting rods 6 are connected to the side walls 3a by means of threaded sleeves 5, which are joined at the bending points to the outer sides of the side walls 3a. Similarly, in the case of the fourth embodiment of the connector 100 (according to Fig. 4), essentially corresponding in its construction to the connector 100 of the second embodiment (according to Fig. 2), the connecting rods 6 are seated inside the side walls 3c via threaded sleeves 5. The use of the sleeves 5, and thus a screwed seating of the connecting rods 6 therein, makes it possible to shorten the resulting contact length of the connection made by the sleeves 5 and the connecting rods 6 of the attachment assembly 4 to the outer surface of the side walls 3a, or inside these side walls 3c, respectively. Furthermore, this translates into that the elements that make up the connector 100, i.e. its main part as well as the connecting rods 6, can be supplied separately, which has a favourable impact on the cost parameters.

[0036] Analogously to what was the case with the connector 100 according to the first and second embodiment, the connectors 100 according to the third and fourth embodiment exhibit bilateral symmetry with respect to the mounting hole 2 in the base la, i.e. along the axes coinciding with the longitudinal axis 10 and the transverse axis 11 of the mounting hole 2, respectively. As shown in Fig. 5, the connector 100 for fixing reinforced concrete columns, beams and walls according to the next possible, fifth, embodiment has a base lb formed in the shape of an isosceles trapezium with a longer lower side. In its central area, the base lb has a circular mounting hole 2, with a longitudinal axis 10 and a transverse axis 11. Fixed to the side edges of the base lb are side walls 3d, which are symmetrical with respect to each other (and with respect to the longitudinal axis 10 of the mounting hole 2), and shaped as substantially adjacent to the side edges of the base lb, where in the area of the shorter, upper edge of the base lb the side walls are bent outwards in an arc. The connecting rods 6 are fixed on the outer side of the side walls 3d. The connecting rods 6 are seated in the connector 100 so that their centres of gravity as well as the centre of the mounting hole 2 lie on one axis coinciding with the transverse axis of the mounting hole 2. In the case of the fifth embodiment presented here, the connector 100 for fixing reinforced concrete columns, beams and walls is characterised by uniaxial symmetry, relative to the longitudinal axis 10 of the mounting hole 2.

[0037] Fig. 6 shows a sixth possible embodiment of the connector 100, the structure of which is similar to that discussed in the fifth embodiment. The difference is in the way in which the connecting rods 6 are fixed, said rods being seated inside the side walls 3e, in specially shaped cut-outs in the side walls 3e. Analogously to the connector according to the fifth embodiment, also in this configuration, the connector 100 has uniaxial symmetry and the centre of the mounting hole 2 and the centres of gravity of the connecting rods 6 are placed on one axis coinciding with the transverse axis 11 of the mounting hole 2.

[0038] According to Figs. 7 and 8, further embodiments, i.e. the seventh and eighth embodiment of the connector 100 of the invention are shown, relating to the previously described fifth and sixth embodiment, respectively. In the case of the seventh embodiment (according to Fig. 7), the construction of the connector 100 is substantially similar to the structure according to the fifth embodiment according to Fig. 5 but in this arrangement the connecting rods 6 are connected to the side walls 3d by means of threaded sleeves 5, which are integrated with the outer sides of the side walls 3d. Similarly, in the case of the eighth embodiment of the connector 100 (according to Fig. 8), essentially corresponding in its construction to the connector 100 of the sixth embodiment (according to Fig. 6), the connecting rods 6 are seated in the side walls 3f via threaded sleeves 5. The use of the sleeves 5, and thus a screwed seating of the connecting rods 6 therein, makes it possible to shorten the resulting contact length of the connection made by the sleeves 5 and the connecting rods 6 of the attachment assembly 4 to the outer surface of the side walls 3d, or inside these side walls 3f, respectively. This makes it also possible to supply the main part of the connector 100 and the connecting rods 6 separately.

[0039] Analogously to what was the case with the connector 100 according to the fifth and sixth embodiment, the connectors according to the seventh and eighth embodiment discussed show unilateral symmetry with respect to the longitudinal axis 10 of the mounting hole 2 in the base lb.

[0040] As shown according to a possible ninth embodiment in Fig. 9, the connector 100 for fixing reinforced concrete columns, beams and walls has abase 1c, the side edges of which diverge angularly at the lower edge of the base 1c. In its central area, the base 1c has a circular mounting hole 2, with a longitudinal axis 10 and a transverse axis 11. Fixed to the side edges of the base 1c are side walls 3g, which are symmetrical with respect to each other and with respect to the longitudinal axis 10 of the mounting hole 2, and which - adjacent to the side edges of the base 1c - are angularly bent outwards and then shaped as straight. At the top, in the area of the upper edge of the base 1c, the side walls 3g are bent outwards in an arc. The connecting rods 6 are fixed on the outer sides of the side walls 3g. The connecting rods 6 are seated in the connector 100 so that their centres of gravity and the centre of the mounting hole 2 lie on one axis coinciding with the transverse axis of the mounting hole 2. In the case of the ninth embodiment presented here, the connector 100 for fixing reinforced concrete columns, beams and walls is characterised by uniaxial symmetry, relative to the longitudinal axis 10 of the mounting hole 2.

[0041] Fig. 10 shows the tenth possible embodiment of the connector 100, the structure of which is similar to that discussed in the ninth embodiment. The difference is in the way in which the connecting rods 6 are fixed, said rods being seated inside the side walls 3h, in specially shaped cut-outs in the side walls 3h. Analogously to the connector according to the ninth embodiment, also in this configuration, the connector 100 has uniaxial symmetry and the centre of the mounting hole 2 and the centres of gravity of the connecting rods 6 are placed on one axis coinciding with the transverse axis 11 of the mounting hole 2.

[0042] According to Figs. 11 and 12, further embodiments, i.e. the eleventh and twelfth embodiment of the connector 100 of the invention are shown, relating to the previously described ninth and tenth embodiment, respectively. In the case of the eleventh embodiment (according to Fig. 11), the construction of the connector 100 is substantially similar to the structure according to the ninth embodiment according to Fig. 9 but in this arrangement the connecting rods 6 are connected to the side walls 3g by means of threaded sleeves 5, which are integrated with the outer sides of the side walls 3g. Similarly, in the case of the twelfth embodiment of the connector 100 (according to Fig. 12), essentially corresponding in its construction to the connector 100 of the tenth embodiment (according to Fig. 10), the connecting rods 6 are seated in the side walls 3i via threaded sleeves 5. The use of the sleeves 5, and thus a screwed seating of the connecting rods 6 therein, makes it possible to shorten the resulting contact length of the connection made by the sleeves 5 and the connecting rods 6 of the attachment assembly 4 to the outer surface of the side walls 3g, or inside these side walls 3i, respectively. This makes it also possible to supply the main part of the connector 100 and the connecting rods 6 separately.

[0043] Analogously to what was also the case with the connector 100 according to the ninth and tenth embodiment, the connectors 100 according to the eleventh and twelfth embodiment discussed show unilateral symmetry with respect to the longitudinal axis 10 of the mounting hole 2 in the base 1c.

[0044] The shaping of the connector 100, as described in the above possible but nonexclusive embodiments of the invention, makes it possible to nullify the influence of all horizontal forces coming from structural and mounting eccentricities representing the described technical problem in the field of construction of reinforced concrete connections of columns, beams and walls, without the necessity to use, as in most cases up to now, additional rear elements to eliminate the influence of the eccentricity. The anchoring forces coming from the column, beam or wall are transmitted to the support, in accordance with the invention, by means of a generally known bolted connection with an anchor placed in the support, the anchor, for example, in the form of a mounting bolt. Fig. 13 shows a schematic representation of the mounting eccentricity, which is related to the requirement for dimensional tolerances in the connector 100 due to the anchoring elements used. As shown in the figure, the distance between the vertical axis 8 of the mounting hole 2 in the base la, lb, 1c and the vertical axis 9 of the mounting bolt 7 is defined by the eccentricity e.

[0045] The construction of the connector 100 according to the invention is simple and easy to make. All the elements that form it can be made by simple operations such as machining, while they are joined by welding. It is also possible to shape the side walls 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i integrally with the base la, lb, 1c , for example by casting or forging. The base la, lb, 1c and side walls 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i are made of steel. As for the elements forming the attachment assemblies 4, they can similarly be formed from steel or composite materials.

[0046] As shown in Fig. 14, the connectors 100 for fixing reinforced concrete columns, beams or walls can be configured in different ways. In accordance with the concept of the invention as well as based on the disclosed structure of the connectors 100 with side walls 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i bent outwards, and equipped with attachment sets 4, mounting arrangements consisting exclusively of the connectors 100 of the invention, incorporated on the sides of the cross-sections of the column, beam or wall, can be used. In this configuration, and given the structure of the connectors 100, a mounting arrangement can be provided in which there is no need to incorporate the connectors 100 into the comers of the cross-section of a column, beam or wall. This comer positioning of the connector 100 is to be understood as the positioning of the connector 100 at the corner of a column, beam or wall, where the longitudinal axis 10 of the mounting hole 2 is aligned with the bisector of the corner angle of the cross-section of this column, beam or wall. In addition to the above, other mixed arrangements of the connectors 100 are also possible, in which, in addition to the connectors 100 of the structure according to the invention, the commonly known connectors with the additional rear element are used.

[0047] Fig. 14a shows a mounting arrangement with a mixed configuration, wherein the connector 100 of the invention is placed in the cross- section of the column along each side of the column. In the example presented here, a mounting arrangement using the connectors 100 according to the first embodiment of the connector 100 described above is shown. However, it will be obvious to a person skilled in the art of the invention that any of the connectors 100 discussed in the following embodiments thereof can be implemented in the mounting arrangement. The connectors 100 are disposed such that the centres of the mounting holes 2 are aligned along orthogonal axes on a rectangular grid (not shown). Other, for example, standard connectors (not being the subject-matter of the invention) are used at the comers of the column with additional rear elements directed towards the core of the column.

[0048] Fig. 14b also shows a mounting arrangement in a mixed configuration, where the connectors 100 (according to the invention) are disposed in the cross-section of a column having a rectangular cross-section, with two connectors along each longer side of the column. Standard connectors (which are not the subject-matter of the invention) with additional rear elements are disposed at the corners of the column.

[0049] Fig. 14 c shows a mounting arrangement, where in the cross-section of a column having a rectangular cross-section, only connectors 100 of the invention are disposed along its longer sides. In contrast, Fig. 14 d shows a mounting arrangement in which the connectors 100 according to the invention are disposed along all sides of the column. In both of these embodiments, the transverse axes of the mounting holes 2 are located along the axis parallel to the respective adjacent side of the column. Similarly, Figs. 14 e and 14 f disclose mounting arrangements using only connectors 100 of the invention, disposed in a wall. In the case of Fig. 14e, the connectors 100 are distributed in two rows in a staggered arrangement.

[0050] The presented invention is not limited to the embodiments shown, with various modifications possible within the scope of the patent claims and without departing from the essence of the disclosure.

Claims

Patent claims1. A connector 100 for fixing reinforced concrete columns, beams or walls to the support, the connector comprising a base la, lb, 1c with a mounting hole 2 formed in its central area for a mounting bolt, wherein two opposite side walls 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i are seated in the base la, lb, 1c along its side edges, with each of said side walls having at least one attachment assembly 4 equipped with at least a connecting rod 6, where the connecting rod extends vertically upwards and is seated substantially perpendicular with respect to the plane of the base la, lb, 1c, characterised in that the side walls (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) are bent outwards with respect to the base (la, lb, 1c) and are mutually symmetrical with respect to the longitudinal axis (10) of the mounting hole (2) and in that the centre of the mounting hole (2) and the centres of gravity of at least one of the attachment assemblies (4) on both sides of the base (la, lb, 1c) are located along one axis coinciding with the transverse axis (11) of the mounting hole (2).

2. The connector 100 of claim 1, characterised in that the side walls (3a, 3b, 3c, 3d, 3e, 3f) are bent outwards once.

3. The connector 100 of claim 1, characterised in that the side walls (3g, 3h, 3i) are bent outwards at least twice.

4. The connector 100 of claim 1 or 2 or 3, characterised in that the base (la, lb, 1c) is polygonal in shape, where its side edges are shaped according to the shape of the side walls (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i).

5. The connector 100 of claim 1 or 2 or 3 or 4, characterised in that each of the side walls (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) has one attachment assembly (4) whose centre of gravity is located on the axis coinciding with the transverse axis (11) of the mounting hole (2).

6. The connector 100 of claim 1 or 5, characterised in that the attachment assembly (4) is seated on the outer side of the side wall (3a, 3d, 3g).

7. The connector 100 of claim 1 or 5, characterised in that the attachment assembly (4) is seated inside the side wall (3b, 3c, 3e, 3f, 3h, 3i).

8. The connector 100 of claim 6 or 7, characterised in that the attachment assembly (4) is the connecting rod (6).

9. The connector 100 of claim 6 or 7, characterised in that the attachment assembly (4) is the connecting rod (6) connected to the side wall (3a, 3c, 3d, 3f, 3g, 3i) by a sleeve (5) with a threaded internal hole.

10. The connector 100 of claim 1, characterised in that the mounting hole (2) has a diameter larger than the diameter of the mounting bolt.

11. The connector 100 according to any one of the preceding claims, characterised in that it is symmetrical at least along the axis coinciding with the longitudinal axis (10) of the mounting hole (2).

12. The connector 100 of claim 11, characterised in that it is symmetrical along the axis coinciding with the transverse axis (11) of the mounting hole (2).

13. The connector 100 according to any one of the above claims, characterised in that the base (la, lb, 1c) and side walls (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) are separate steel elements, connected to each other by welding.

14. The connector 100 according to any one of the above claims, characterised in that the base (la, lb, 1c) and the side walls (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) are a single steel element, made by casting or hot forging.

15. The connector 100 according to any one of the above claims, characterised in that the elements of the attachment assembly (4) are made of steel or composite material.

16. A mounting arrangement for fixing reinforced concrete columns, beams or walls to the support, wherein connectors 100 are disposed in the cross-section of the column, beam or wall, wherein the connector 100 comprises a base la, lb, 1c with a mounting hole 2 formed in its central area for a mounting bolt, and two opposite side walls 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i are seated along the side edges of the base la, lb, 1c, each of the side walls having at least one attachment assembly 4 equipped with at least a connecting rod 6, wherein the connecting rod 6 extends vertically upwards and is seated substantially perpendicular to the plane of the base la, lb, 1c, characterised in that the side walls (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) of the connector (100) are mutually symmetrical and bent outwards with respect to the base (la, lb, 1c), where the centre of the mounting hole (2) and the centres of gravity of at least one of the attachment assemblies (4) on both sides of the base (la, lb, 1c) are located along one axis coinciding with the transverse axis (11) of the mounting hole (2), and in that at least one connector (100) is incorporated into along at least one of the sides of the cross-section of the column, beam or wall, the connectors (100) being disposed such that the centres of the mounting holes of the co-linear connectors (100) are aligned on one axis.

17. The arrangement of claim 16, characterised in that the connectors (100) are disposed in the cross-section of the column, beam or wall with no corner placement in the crosssection of the column, beam or wall.

18. The arrangement of claim 16 or 17, characterised in that the connectors (100) are disposed in the cross-section of the column, beam or wall exclusively along the lateral side of the cross-section of the column, beam or wall.

19. The arrangement of claim 18, characterised in that the connectors (100) are disposed in the cross-section of the column, beam or wall in an orthogonal arrangement on a rectangular grid, with the centres of the mounting holes (2) of the co-linearly disposed connectors (100) lying on one axis.

20. The arrangement of any one of claims 16 to 19, characterised in that the connectors (100) are incorporated into the cross-section of the column, beam or wall with known connectors of a different structure being used simultaneously.

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