SUPPORTING BEAM FOR SLAB SYSTEMS, SLAB SYSTEM, AND METHOD FOR THE PRODUCTION THEREOF

Abstract

The invention relates to a supporting beam, in particular of composite design, for slab systems, in particular of composite design, wherein the supporting beam extends in a longitudinal direction and has: a support extending in the longitudinal direction, in particular a steel support, which is formed in at least two pieces and has at least two support parts which each extend in the longitudinal direction.

Claims

1. A supporting beam, in particular of composite design, for slab systems, in particular of composite design, the supporting beam extending in a longitudinal direction, the supporting beam comprising: a steel support consisting of steel, which extends in the longitudinal direction, the steel support being formed in at least two pieces and having at least two steel support parts which each extend in the longitudinal direction, the steel support comprising a base plate which is formed in at least two pieces and has at least two base plate parts which each extend in the longitudinal direction, the base plate parts being arranged so as to be spaced apart from one another in a transverse direction, the steel support comprising at least one web arranged at an angle thereto and which is arranged so as to be spaced apart from the base plate, and the steel support having on the base plate one or more protrusions protruding from the remainder of the supporting beam in the transverse direction running perpendicular to the longitudinal direction, the one or more protrusions configured to hold one or more components, the transverse direction running horizontally when one or more components are held.

2. The supporting beam according to claim 1, wherein the at least one web includes two webs arranged at an angle to the support, preferably perpendicular thereto, the two webs being arranged so as to be spaced apart from the base plate.

3. The supporting beam according to claim 1, comprising concrete at least in sections, which is preferably hardened during assembly at the construction site so as to be capable of bearing a load and/or which is preferably not in-situ concrete.

4. The supporting beam according to claim 1, wherein the steel support parts are arranged so as to be spaced apart from one another in a transverse direction running perpendicular to the longitudinal direction.

5. The supporting beam according to claim 1, wherein the steel support parts are symmetrical to one another in relation to the longitudinal axis of the supporting beam.

6. The supporting beam according to claim 1, wherein the steel support parts are arranged at the edge regions of the supporting beam, when viewed in a transverse direction running perpendicular to the longitudinal direction, and/or are spaced apart from one another in the central region of the supporting beam, when viewed in a transverse direction running perpendicular to the longitudinal direction.

7. The supporting beam according to claim 1, further comprising a reinforcement cage, which preferably consists of reinforcing steel and/or longitudinal bars and stirrups, wherein it is further preferable for concrete to surround the reinforcement cage (7) at least in sections, preferably completely.

8. The supporting beam according to claim 7, further comprising connectors attached to the steel support which extend through interstices in the reinforcement cage in a transverse direction running perpendicular to the longitudinal direction.

9. (canceled)

10. The supporting beam according to claim 1, further comprising a protective barrier against heat and/or flames, preferably in the form of a film-forming coating, on the underside of the base plate or of the protrusion(s).

11. A method for producing a supporting beam extending in the longitudinal direction as according to claim 1, having a desired extension in a transverse direction running perpendicular to the longitudinal direction, for slab systems of composite design, the method comprising acts of: providing at least two steel support parts, determining the position of the steel support parts relative to one another in relation to the transverse direction according to the desired extension of the supporting beam in the transverse direction, and arranging the steel support parts according to the determined position and in such a way that the steel support parts extend in the longitudinal direction.

12. The method according to claim 11, wherein when the position of the steel support parts is determined, a space between the steel support parts in the transverse direction is determined.

13. The method according to claim 11, further comprising providing a reinforcement cage and arranging the support parts around the reinforcement cage when the support parts are arranged according to the determined position, wherein the reinforcement cage is in its final form during this process.

14. The method according to claim 11, wherein the provision of at least two steel support parts covers a continuous steel support part profile being divided into at least two parts in the longitudinal direction.

15. Use of the supporting beam according to claim 1, in a slab system of composite design, wherein the supporting beam is used to support at least one component part, semi-finished part, finished part or in-situ concrete part or component part made from other materials.

16. A slab system of composite design, comprising: at least one supporting beam according to claim 1, at least one component part, semi-finished part or finished part, which is supported on the at least one supporting beam, and an in-situ concrete layer, which is provided at least in a connecting region between the at least one supporting beam and the component part, semi-finished part and/or finished part.

17. A method for producing a slab system of composite design, the method comprising acts of: supporting at least one supporting beam according to claim 1 on bearings, supporting at least one component part, semi-finished part or finished part on the at least one supporting beam, providing connectors in a connecting region between the at least one supporting beam and the component part, semi-finished part or finished part.

18. The method according to claim 17, further comprising an act of: providing an in-situ concrete layer at least in the connecting region between the at least one supporting beam and the component part, semi-finished part or finished part.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0049] FIG. 1 shows a supporting beam according to the invention in a cross-sectional view perpendicular to the longitudinal direction of the supporting beam.

[0050] FIG. 2 shows a perspective view of a supporting beam according to the invention; and

[0051] FIGS. 3(a) to 3(j) show various embodiments of a supporting beam according to the invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0052] In the following, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0053] FIG. 1 shows a supporting beam 1 according to the invention in a cross-sectional view perpendicular to the longitudinal direction L of the supporting beam. The supporting beam 1 is of a composite construction, namely a composite of a support 2 and concrete 6. This supporting beam 1 is intended for a slab system (not shown) which may be of composite design. The supporting beam 1 extends in the longitudinal direction L vertically into the drawing plane. The support 2, which is preferably a steel support, is formed in two pieces, wherein the two pieces, i.e. the two support parts, each extend in the longitudinal direction L and run substantially parallel to one another.

[0054] FIG. 1 shows a base plate 3 which is formed in two pieces and comprises two base plate parts 3a and 3b. These run side by side and each extend in the longitudinal direction L. The support 2 has two webs 4, 5, which extend side by side and in this embodiment parallel to one another in the longitudinal direction L. The two webs 4, 5 are arranged so as to be perpendicular to the base plate 3. To be more specific, the web 4 is arranged so as to be perpendicular to the base plate part 3a, and the web 5 is arranged so as to be perpendicular to the base plate part 3b.

[0055] The supporting beam 1 has concrete 6, which is not in-situ concrete; instead, it is hardened prior to assembly such that it is capable of bearing a load. The concrete 6 is only not present in the region in which lateral reinforcing steel can be inserted and which is designated the penetration tube 13. In a sectional view as in FIG. 1, the tube 13 is shown through the concrete 6.

[0056] The support parts in the embodiment shown in FIG. 1 are to be understood to be the base plate part 3a and the web on the one hand, and the base plate part 3b and the web 5 on the other. There is a space A between the two base plate parts 3a and 3b in the transverse direction Q. In the embodiment shown in FIG. 1, the spacing running in the transverse direction Q is spacing in the X direction. The base plate parts 3a and 3b are therefore arranged so as to be spaced apart from one another in the X direction.

[0057] The two support parts and the two base plate parts 3a and 3b as well as the webs 4, 5 are formed so as to be symmetrical to one another in relation to the longitudinal direction L, in particular the longitudinal axis L of the supporting beam 1. In other words, one half of the support 1, viewed in the transverse direction Q results from a reflection of the other half of the support 1 on a plane extending through the longitudinal axis of the supporting beam and in the Y direction.

[0058] The two support parts 3a, 4 on the one hand and 3b, 5 on the other are arranged in the edge regions R, when viewed in the transverse direction. The space A between the two support parts lies in the central region M of the supporting beam 1 in the embodiment shown in FIG. 1.

[0059] The supporting beam 1 comprises a reinforcement cage 7 which in turn preferably comprises longitudinal bars 7a and stirrups 7b made of reinforcing steel. In this embodiment, the concrete 6 completely surrounds the reinforcement cage 7 made of reinforcing steel, i.e. the longitudinal reinforcement 7a and the stirrups 7b.

[0060] The supporting beam 1 may comprise connecting means 8 which improve the connection between the support 2 and the concrete 6. The connecting means 8 are attached to the support 2 and extend through interstices in the reinforcement cage 7 in the transverse direction. In this way, a good load-bearing capacity can be achieved.

[0061] In the embodiment shown in FIG. 1, protruding elements or protrusions 9 extend from the base plate 3 or the base plate parts 3a, 3b. The protruding elements 9 are arranged on a base plate part 3a, 3b and extend in the X direction.

[0062] The base plate 3 may be provided integrally with the protruding elements 9. In the embodiment shown in FIG. 1, a base plate part 3a is formed integrally with a protruding element 9, and a further base plate part 3b is formed integrally with a protruding element 9.

[0063] FIG. 2 shows a perspective view of the supporting beam 1 according to the invention in combination with a further component 10. The supporting beam 1 extends in the longitudinal direction L and comprises a reinforcement cage 7. In the embodiment shown in FIG. 2 (and the rest of the Figures), neither the support nor the webs 4, 5 have a rise. The support 2 is formed in two pieces, such that two base plate parts 3a and 3b are formed. The base plate part 3a is integrally connected to the protruding element 9. The component 10, which forms the slab system, rests against the protruding element 9. A gap is formed between the component 10 and the supporting beam 2, which is grouted or filled with in-situ concrete 11 or grout/infill concrete.

[0064] FIG. 2 therefore shows a slab system of composite design as according to the invention, which in addition to the supporting beam 1 comprises a component part, a semi-finished part or a finished part 10, wherein an in-situ concrete layer 11 is filled in between. Thus, the supporting beam 1 is used in a slab system of composite design, wherein the supporting beam 1 supports the semi-finished part, finished part 10 or even an in-situ concrete part 11.

[0065] FIG. 3 shows various embodiments of the supporting beam of the present invention in cross section, wherein for the most part the support 2 is substantially shown as such. Only FIGS. 3(d) and 3(f) show a supporting beam 1 with the carrier 2, reinforcement cage 7 and concrete 6.

[0066] FIG. 3(a) shows an embodiment comprising an integral base plate 3. This base plate 3 is integrally formed with the web 5. The web 4, which is opposite the web 5, is spaced apart from the base plate 3 in the Y direction. Consequently, the support 2 in the embodiment of FIG. 3(a) is formed in two pieces: the support 2 comprises a first support part 4 (the web 4) and a second support part formed by the base plate 3 and the web 5. The space between the base plate and the web 4 results in a multi-part form of the support 2. Other arrangements of the web 4 with respect to the base plate 3/web 5 in the transverse direction (X direction) allow supporting beams of different widths to be formed.

[0067] In the embodiment of the support 2 that is shown in FIG. 3(b), the base plate is divided into two base plate parts 3a and 3b. The base plate parts are integrally connected to a web 4, 5 respectively. As a consequence, the support 2 according to the embodiment in FIG. 3(b) is formed in two pieces; that is to say that the base plate is formed in a plurality of pieces. The elements 8 on the webs 4 and 5 constitute connecting means, such as moon-shaped sheets with holes.

[0068] In the embodiment shown in FIG. 3(c), the base plate 3 is in one piece, while the webs 4, 5 are each arranged so as to be spaced apart from the base plate 3. Thus, the embodiment in FIG. 3(c) can be considered to be a multi-part form, or more specifically a three-part form, of the support, wherein the support comprises a first part consisting of the web 5, a second part consisting of the web 4, and a third part consisting of the base plate 3. Connecting means 8 are provided on each of the webs 4, 5 and the base plate 3.

[0069] FIG. 3(d) shows an embodiment with a two-piece base plate, which comprises the base plate parts 3a and 3b. In addition, a protective barrier 12 is provided on the underside of the base plate 3a, 3b and the protruding elements 9, which barrier is resistant to heat and/or fire. Connecting means 8 are shown also in this embodiment. A reinforcement cage 7 is also provided. This Figure also shows the concrete 6, i.e. the complete supporting beam 1, and not just substantially the support 2.

[0070] In the embodiment in FIG. 3(e), the base plate is formed in two parts by the base plate parts 3a and 3b. Moreover, the webs 4, 5 are each arranged so as to be spaced apart from the base plate parts. The embodiment in FIG. 3(e) can therefore be considered to be a four-piece support 2. Various connecting means 8 are arranged in the interior of the supporting beam 2. Different arrangements of the webs 4 and 5 in the X direction or transverse direction Q with respect to the base plate parts 3a and 3b result in supporting beams of different widths.

[0071] The embodiment in FIG. 3(f) shows a supporting beam 1 having a reinforcement cage 7, concrete 6 and a three-piece support 2 which comprises a first support part consisting of the protruding element 9, the base plate part 3c and the web 4, a second support part consisting of the base plate part 3a, and a third support part consisting of the web 5, the base plate part 3b and the protruding element 9. The distinctive features of this embodiment include the third base plate part 3c, which is arranged higher in order to support a slab component (not shown) with a smaller thickness (extension in the Y direction) on the protrusion 9.

[0072] In this embodiment, as well as in other embodiments, two protruding elements 9 may be arranged at different heights, i.e. at different positions in the Y direction, for supporting slab plates protruding towards opposite sides of the supporting beam 1. However, it is also conceivable that protruding elements 9 are arranged at the same Y height.

[0073] The embodiment in FIG. 3(g) shows a support 2 consisting of two support parts, wherein one support part consists of a protruding element 9 as well as the web 4, and the other support part consists of a protruding element 9 and the web 5. In this embodiment, the base plate 3 is provided without an inward extension toward the concrete. The protrusion 9 forms the lower end of the support 2 as base plate 3.

[0074] In the embodiment shown in FIG. 3(h), there is a space between a base plate 3 and the webs 4, 5. The space between the base plate 3 and the protrusions 9 provides particularly good fire protection in the event of flames from below. This embodiment can be considered to be a three-part form since the support consists of three pieces, namely the web 4, the web 5 and the base plate 3. Connecting means 8 are provided on the webs as well as on the base plate 3.

[0075] In the embodiment in FIG. 3(i), a three-part form of the support is shown: the web 4 together with the protruding element 9 constitutes one part, the base plate 3 constitutes a further support part, and the web 5 constitutes a third support part. Adjustments to the width of the supporting beam 1 are possible by moving the webs 4 and 5. The support parts each comprise connecting means 8. The protective barrier 12 is provided on the underside of the base plate 3 and on the underside of the protruding element 9. The protrusion 9 is elevated, i.e. it is offset in the Y direction with respect to the base plate 3.

[0076] In the embodiment in FIG. 3(j), a four-piece support is shown, wherein the support comprises a first part consisting of the base plate 3a and the web 4, a second part consisting of the protruding element 9 on the left-hand side, a third support part consisting of the base plate part 3b and the web 5, and a fourth support part consisting of the protruding element 9 on the right-hand side. The protruding elements 9 may in this case be connected to the respective web 4, 5 by way of connecting elements 14 such as tension plates, sheet metal triangles or tension rods. Despite this connection, there is still a multi-part form of the connected support parts, which is particularly apparent in a cross section elsewhere (in the longitudinal direction L). It is therefore easy to achieve different heights of the protruding element 9.

[0077] The supporting beam 1 according to the invention can be produced as follows: when producing the supporting beam 1 extending in the longitudinal direction L, the following steps are taken to achieve a desired extension in the X or Y direction, i.e. in a transverse direction running perpendicular to the longitudinal direction, wherein preferably the supporting beam 1 is produced as according to the invention. First, two or more support parts are provided, such as a first part consisting of the protruding element 9, the base plate part 3a and the web 4, as shown in FIG. 1, and a second support part consisting of the protruding element 9, the base plate part 3b and the web 5.

[0078] The position of the two support parts relative to one another in relation to the transverse direction Q in this case the X direction, is determined by the fact that a desired extension of the supporting beam 1 in the X direction is to be obtained. The first and second support parts 1 are arranged at a considerable distance A from one another if the supporting beam 1 is to have a wide extension in the X direction. However, the distance A will be smaller if the supporting beam 1 is to have a smaller extension in the X direction. The support parts are then arranged in accordance with the determined position and the corresponding spacing in such a way that the support parts extend in the longitudinal direction L. As shown in FIG. 1, the support parts then extend parallel to one another and side by side in the longitudinal direction L.

[0079] The reinforcement cage 7 is produced in a previous work step from longitudinal bars 7a and stirrups 7b of reinforcing steel. The support parts are arranged around the reinforcement cage 7 in accordance with the determined position. The connecting means 8 attached to the support parts can for example be threaded through the reinforcement cage 7 when the support parts are arranged in accordance with the determined position. In particular, the support parts are pushed laterally, i.e. in the X direction, towards the reinforcement cage 7, and the connecting means 8 project into the reinforcement cage 7. In this case, the reinforcement cage 7 may already be in its final form. Thus, it is not necessary to laboriously insert the reinforcement cage 7 into the already assembled support 2 in individual parts; rather, as a result of arranging the individual support parts in and around the reinforcement cage 7, the support 2 is integrated in the supporting beam 2.

[0080] The two symmetrical support parts in the embodiment in FIG. 1 can be obtained by a continuous support part profile being divided into two parts in the longitudinal direction. The two parts are arranged side by side, and in the transverse direction Q in accordance with the determined position.

[0081] Once the supporting beam 1 consisting of the support 2, reinforcement cage 7 and concrete 6 has hardened, it can be transported to the construction site and used there for producing a slab system. To this end, the supporting beam 1, as shown in FIG. 2, is supported on bearings (not shown) and a component part, a semi-finished part or finished part 10 is subsequently supported on the supporting beam 1. Connecting means are provided in the connecting region between the supporting beam 1 and the finished part/component part 10. Furthermore, an in-situ concrete layer 11 may be provided at least in the connecting region between the supporting beam 1 and the component 10.

[0082] In the different embodiments described above, various combinations and designs are shown which relate to the support parts, protruding elements or protrusions, protective barriers, connecting means, reinforcement cages etc. The embodiments that have been set out in detail are of course only given as examples and several further combinations and designs are also conceivable.

The Following Points Also Describe the Present Invention:

[0083] 1. A supporting beam (1), in particular of composite design, for slab systems, in particular of composite design, the supporting beam extending in the longitudinal direction (L) and having: [0084] a support (2) extending in the longitudinal direction (L), in particular a steel support, [0085] characterized in that the support (2) is formed in at least two pieces and has at least two support parts which each extend in the longitudinal direction (L).

[0086] 2. The supporting beam according to point 1, wherein the support (2) has a base plate (3) which is preferably formed in two pieces and has at least two base plate parts (3a, 3b) which each extend in the longitudinal direction (L).

[0087] 3. The supporting beam according to point 1 or 2, wherein the support (2) comprises at least one, preferably two, web(s) (4, 5) arranged at an angle thereto, preferably perpendicular thereto, which are preferably arranged so as to be spaced apart from the base plate.

[0088] 4. The supporting beam according to one of the preceding points, comprising concrete (6) at least in sections, which is preferably hardened during assembly at the construction site so as to be capable of bearing a load and/or which is preferably not in-situ concrete (11).

[0089] 5. The supporting beam according to one of the preceding points, wherein the support parts (2) are arranged so as to be spaced apart from one another in a transverse direction (Q) running perpendicular to the longitudinal direction.

[0090] 6. The supporting beam according to the preceding points 2 and 5, wherein the base plate parts (3a, 3b) are arranged so as to be spaced apart from one another in the transverse direction.

[0091] 7. The supporting beam according to one of the preceding points, wherein the support parts are symmetrical to one another in relation to the longitudinal axis (L) of the supporting beam.

[0092] 8. The supporting beam according to one of the preceding points, wherein the support parts are arranged at the edge regions (R) of the supporting beam, when viewed in a transverse direction running perpendicular to the longitudinal direction, and/or are spaced apart from one another in the central region (M) of the supporting beam, when viewed in a transverse direction (Q) running perpendicular to the longitudinal direction.

[0093] 9. The supporting beam according to one of the preceding points, wherein the supporting beam comprises a reinforcement cage (7), which preferably consists of reinforcing steel and/or longitudinal bars (7a) and stirrups (7b), wherein it is further preferable for concrete (6) to surround the reinforcement cage (7) at least in sections, preferably completely.

[0094] 10. The supporting beam according to point 9, wherein connecting means (8) attached to the support extend through interstices in the reinforcement cage (7) in a transverse direction (Q) running perpendicular to the longitudinal direction.

[0095] 11. The supporting beam according to one of the preceding points, wherein the support preferably has on the base plate (3) and/or on the web or webs (4, 5) one or more protrusions (9) in a transverse direction running perpendicular to the longitudinal direction, for supporting one or more components.

[0096] 12. The supporting beam according to one of the preceding points 2 to 11, preferably having a protective barrier (12) against heat and/or flames, preferably in the form of a film-forming coating, on the underside of the base plate (3) or of the protrusion(s).

[0097] 13. A method for producing a supporting beam (1) extending in the longitudinal direction (L) and having a desired extension in a transverse direction running perpendicular to the longitudinal direction, preferably the supporting beam according to one of the preceding points, for slab systems of composite design, with the following steps: [0098] providing at least two support parts, in particular steel support parts, [0099] determining the position of the support parts relative to one another in relation to the transverse direction according to the desired extension of the supporting beam (2) in the transverse direction, [0100] arranging the support parts according to the determined position and in such a way that the support parts extend in the longitudinal direction.

[0101] 14. The method according to point 13, wherein when the position of the support parts is determined a space (A) between the support parts in the transverse direction is determined.

[0102] 15. The method according to point 13 or 14, wherein a reinforcement cage (7) is also provided and the support parts are arranged around the reinforcement cage (7) when they are arranged according to the determined position, wherein the reinforcement cage is preferably in its final form during this process.

[0103] 16. The method according to one of the preceding points 13 to 15, wherein the provision of at least two support parts covers a continuous support part profile being divided into at least two parts in the longitudinal direction (L).

[0104] 17. Use of the supporting beam (1) according to one of the preceding points 1 to 12 in a slab system of composite design, wherein [0105] the supporting beam (1) is used to support at least one component part, semi-finished part, finished part (10) or in-situ concrete part (11) or component part made from other materials.

[0106] 18. A slab system of composite design, comprising: [0107] at least one supporting beam (1) according to one of the preceding points 1 to 12, [0108] at least one component part (10), semi-finished part or finished part, which is supported on the at least one supporting beam (1), and [0109] an in-situ concrete part (11), which is provided at least in the connecting region between the at least one supporting beam (1) and the component part (10), semi-finished part or finished part.

[0110] 19. A method for producing a slab system (100) of composite design, with the steps of: [0111] supporting at least one supporting beam (1) according to one of points 1 to 12 on bearings, [0112] supporting at least one component part, semi-finished part or finished part (10) on the at least one supporting beam (1), [0113] providing connecting means in the connecting region between the at least one supporting beam (1) and the component part, semi-finished part or finished part (10).

[0114] 20. The method for producing a slab system (100) according to point 19, with the step of: [0115] providing an in-situ concrete layer (11) at least in the connecting region between the at least one supporting beam (1) and the component part, semi-finished part or finished part.

REFERENCE NUMBERS

[0116] 1 Supporting beam

[0117] 2 Support

[0118] 3 Base plate

[0119] 3a, 3b, 3c Base plate parts

[0120] 4, 5 Web

[0121] 6 Concrete

[0122] 7 Reinforcement cage

[0123] 7a Longitudinal reinforcement

[0124] 7b Stirrup

[0125] 8 Connecting means

[0126] 9 Protruding element/protrusion or slab support/bearing

[0127] 10 Component part, finished part, semi-finished part

[0128] 11 In-situ concrete

[0129] 12 Protective barrier

[0130] 13 Penetration tube

[0131] 14 Connecting means

[0132] L Longitudinal direction

[0133] Q Transverse direction

[0134] M Central region

[0135] R Edge region

[0136] A Space