Method for producing a composite beam and composite beam

Abstract

Presented is a method for producing a composite beam (1) such as a steel concrete composite beam. Presented is also a composite beam (1). The method comprises a providing step for providing a steel beam structure (2) comprising a top plate (3), a bottom plate (4), and two web plates (5) delimiting a space (6), a plugging step for plugging at least one aperture (8) in at least one of the two web plates (5) with a removable plug member (9), a filling step for filling the space (6) of the steel beam structure (2) with concrete (7) so that said concrete (7) together with the steel beam structure (2) form the composite beam (1), and a removing step for removing the removable plug member (9).

Description

Field

[0001] The invention relates to a method for producing a composite beam such as a steel concrete composite beam, the composite beam serving together with concrete as a bearing composite structure for various slab systems, wherein the method comprising a providing step for providing a steel beam structure comprising a top plate, a bottom plate, and two web plates, wherein the top plate, the bottom plate, and the two web plates of the steel beam structure delimit a space, and performing after the providing step a filling step for filling the space of the steel beam structure that is provided in the providing step at least partly with concrete so that said concrete together with the steel beam structure form the composite beam, as defined in the preamble of independent claim 1.

[0002] The invention also relates to composite beam such as a steel concrete composite beam, arranged to serve together with concrete as a bearing composite structure for various slab systems, wherein the composite beam comprising a steel beam structure comprising a top plate, a bottom plate, and two web plates, and wherein the top plate, the bottom plate, and the two web plates of the steel beam structure delimit a space that is at least partly filled with concrete so as together with the steel beam structure form the composite beam, as defined in the preamble of independent claim 12.

[0003] Publication EP 1416 101 A1 presents a composite beam element comprising a substantially closed box that is filled with concrete.Objective

[0004] The object is to provide a method for producing a composite beam and a composite beam capable of transferring shear forces between concrete cast into the space limited by the steel beam structure of the composite beam and concrete that is cast outside the composite beam.Short description

[0005] The method is characterized by the definitions of independent claim 1.

[0006] Preferred embodiments of the method are defined in the dependent claims 2 to 11.

[0007] The composite beam of the invention is correspondingly characterized by the definitions of independent claim 12.

[0008] Preferred embodiments of the composite beam are defined in the dependent claims 12 to 22.List of figures

[0009] In the following the method and the composite beam will described in more detail by referring to the figures, which Figure 1 shows a first version of a steel beam structure for a first embodiment and for a second embodiment of the method and for a first embodiment and for a second embodiment of the composite beam, Figure 2 shows the steel beam structure shown in figure 1 in a state, where a plugging step has been performed in a first embodiment of the method for producing the composite beam according to the first embodiment, Figure 3 shows the steel beam structure shown in figure 1 in a state, where a filling step has been performed and where a removing step has been performed for five removable plug members of ten removable plug members in the first embodiment of the method for producing the composite beam according to the first embodiment, Figure 4 shows a second embodiment of the composite beam, Figure 5 shows a second version of a steel beam structure for a third embodiment and for a fourth embodiment of the method and for a third embodiment and for a fourth embodiment of the composite beam, Figure 6 shows the steel beam structure shown in figure 5 as seem from another angle, Figure 7 shows the steel beam structure shown in figures 5 and 6 in a state, where a plugging step has been performed in a third embodiment of the method for producing the composite beam according to the third embodiment, Figure 8 shows the steel beam structure shown in figures 5 and 6 in a state, where a filling step has been performed and where a removing step has been performed in the third embodiment of the method for producing the composite beam according to the third embodiment, Figure 9 shows in section view a steel beam structure for an embodiment of the composite beam, Figure 10 shows in section view the steel beam structure shown in figure 9 in a state where a plugging step has been performed in an embodiment of the method for producing a composite beam, Figure 11 shows in section view the steel beam structure shown in figure 9 in a state where a filling step and a removing step has been performed after the plugging step illustrated in figure 10 in an embodiment of the method for producing a composite beam, Figure 12 shows in section view the steel beam structure shown in figure 9 in a state where a plugging step has been performed in an embodiment of the method for producing a composite beam, Figure 13 shows in section view the steel beam structure shown in figure 9 in a state where a filling step and a removing step has been performed after the plugging step illustrated in figure 12 in and embodiment of the method for producing a composite beam, Figure 14 shows in section view a version of the steel beam structure for an embodiment of the composite beam, Figure 15 shows in section view a version of the steel beam structure for an embodiment of the composite beam in a state, where a plugging step has been performed, Figure 16 shows in section view a version of the steel beam structure for an embodiment of the composite beam, Figure 17 shows in section view a part of a building, where a composite beam according to the first embodiment is in use, Figure 18 shows in section view a part of a building, where a composite beam according to the second embodiment is in use, Figure 19 shows in section view a part of a building, where a composite beam according to a fifth embodiment is in use, Figure 20 shows a fifth sixth of the composite beam, and Figure 21 shows the steps of an embodiment of the method. Detailed description

[0010] First the method for producing a composite beam 1 such as a steel concrete composite beam, the composite beam 1 serving together with concrete as a bearing composite structure for various slab systems 24, and some variants and embodiments of the method will be presented in greater detail.

[0011] The method comprises a providing step for providing a steel beam structure 2 comprising a top plate 3, a bottom plate 4, and two web plates 5, wherein the top plate 3, the bottom plate 4, and the two web plates 5 of the steel beam structure 2 delimit, preferably together delimit, a space 6. In other words, the space 6 is formed between the top plate 3, the bottom plate 4, and the two web plates 5 of the steel beam structure 2. The steel beam structure 2 that is provided in the providing step comprises preferably, but not necessarily, an end plate 27 at the ends of the steel beam structure 2, wherein the end plates 27 also delimit the space 6. In such case, the space 6 can be formed between the top plate 3, the bottom plate 4, the two web plates 5, and the end plates 27of the steel beam structure 2.

[0012] The method comprises performing after the providing step a filling step for filling the space 6 of the steel beam structure 2 provided in the providing step at least partly with concrete 7 so that said concrete 7 together with the steel beam structure 2 form the composite beam 1.

[0013] At least one of the two web plates 5 of the steel beam structure 2 that is provided in the providing step comprises at least one aperture 8. At least one of the two web plates 5 of the steel beam structure 2 that is provided in the providing step comprises preferably, but not necessarily, a plurality of apertures 8.

[0014] The method comprises performing prior the filling step a plugging step for plugging said at least one aperture 8 in at least one the two web plates 5 of the steel beam structure 2 with a removable plug member 9 so that the removable plug member 9 forms a protrusion 10 extending into said space 6 of the steel beam structure 2 at said at least one aperture 8 and / or forms at least one additional space 11 that extends from the space 6 of the steel beam structure 2 at said at least one aperture 8 and that is in fluid communication with the space 6 of the steel beam structure 2. The removable plug member 9 can be arranged to form either a protrusion 10 extending into said space 6 of the steel beam structure 2 at said at least one aperture 8 or at least one additional space 11 that extends from the space 6 of the steel beam structure 2 at said at least one aperture 8 or both a such protrusion 10 and a such additional space 11. The removable plug member 9 can be arranged to form several such protrusions 10 and several such additional spaces 11.

[0015] If the at least one of the two web plates 5 of the steel beam structure 2 that is provided in the providing step comprises a plurality of apertures 8, a single removable plug member 9 can in the plugging step be arranged to plug one aperture 8 in one of the two web plates 5 of the steel beam structure 2 or a single plug member can in the plugging step be arranged to plug to several apertures 8 in in one of the two web plates 5 of the steel beam structure 2.

[0016] At least one removable plug member 9 can be provided with attachment means (nor illustrated in the figures) configured to removable attach said at least one removable plug member 9 at said at least one aperture 8 in at least one the two web plates 5 of the steel beam structure 2. The method comprises performing after the filling step a removing step for removing the removable plug member 9 so as to provide in the concrete 7 filled in the filling step into the space 6 at least one depression 12, such as at least one blind hole or at least one recess, at said at least one aperture 8 in at least one of the two web plates 5 of the steel beam structure 2 and / or so as to provide by the concrete 7 filled in the space 6 in the filling step at least one concrete protrusion 13 at said at least one aperture 8 in at least one of the two web plates 5 of the steel beam structure 2.

[0017] The method comprises preferably, but not necessarily, a drying step that is performed after the filling step and prior the removing step.

[0018] The providing step, the plugging step, the filling step and the possible drying step can be performed off-site at a factory or on site at a building step. Also the removing step can be performed off-site at a factory or on site at a building step.

[0019] The depression 12 at said at least one aperture 8 in at least one of the two web plates 5 of the steel beam structure 2 of the composite beam 1 or alternatively, the concrete protrusion 13 at said at least one aperture 8 in at least one of the two web plates 5 of the steel beam structure 2 of the composite beam 1 functions as shear transfer means between concrete 7 in the space 6 of the composite beam 1 and cast-in-situ concrete that is cast outside the composite beam 1 as illustrated for example in figures 17 and 18.

[0020] Said at least one aperture 8 in said at least one of the two web plates 5 of the steel beam structure 2 that is provided in the providing step is preferably, but not necessarily, configured, such as dimensioned and designed, to allow concrete 7 in fluid form to flow through said at least one aperture 8 into the space 6 of the steel beam structure 2 from the outside of the steel beam structure 2 and / or configured, such as dimensioned and designed, to allow concrete 7 in fluid form to flow through said at least one aperture 8 out of the space 6 of the steel beam structure 2.

[0021] At least one of the two web plates 5 of the steel beam structure 2 that is provided in the providing step is preferably, but not necessarily, arranged slanted to the bottom plate 4, as in the first version of the steel beam structure illustrated for example in figure 1, where both web plates 5 are arranged slanted to the bottom plate 4 and in the second version of the steel beam structure illustrated for example in figures 5 and 6, where one of the web plates 5 is arranged slanted to the bottom plate 4.

[0022] One of the two web plates 5 of the steel beam structure 2 that is provided in the providing step can be arranged perpendicular to the bottom plate 4 as in the second version of the steel beam structure illustrated for example in figures 5 and 6.

[0023] At least one of the web plates 5 of the steel beam structure 2 that is provided in the providing step is preferably, but not necessarily, fastened to the bottom plate 4 so that a corbel flange 14 is formed outside the space 6 of the steel beam structure 2. The purpose of the corbel flange 14 can for example be to serve as a support for the end of a hollow-core slab (not marked with a refence numeral) as illustrated in figures 17 to 19.

[0024] The steel beam structure 2 that is provided in the providing step has preferably, but not necessarily, in the top plate 3 at least one hole 15 configured, such as dimensioned and designed, to allow concrete 7 in fluid form to flow through said at least one hole 15 into the space 6 of the steel beam structure 2, wherein the method includes filling the space 6 of the steel beam structure 2 in the filling step with concrete 7 through said at least one hole 15 in top plate 3.

[0025] The method comprises in some embodiment of the method, preferably prior the filling step, as illustrated in figures 14 and 15 providing at least one of the two web plates 5 of the steel beam structure 2 with a first threaded coupler 16 having a first threaded stud 17 with an inner thread, so that the first threaded coupler 16 is inside the space 6 of the steel beam structure 2 and so that the first threaded stud 17 is aligned with a first through hole 18 in said at least one web plate 5 so that the inner threads of the first threaded stud 17 is accessible through said first through hole 18. Such embodiments of the method comprises preferably, but not necessarily, providing the first threaded coupler 16 with a first anchoring means 19 for anchoring the first threaded coupler 16 in the concrete 7 that is in the filing step filled into the space 6 of the steel beam structure 2. Such embodiments of the method comprises preferably, but not necessarily, fastening, preferably by welding, the first threaded coupler 16 to said at least one web plate 5. The purpose of such first threaded coupler 16 is to serve as a fastening means for reinforcement rods (not marked with a reference numeral) or the like.

[0026] The method comprises in some embodiment of the method, preferably prior the filling step, as illustrated in figure 16, providing the top plate 3 of the steel beam structure 2 with a second threaded coupler 20 having a second threaded stud 21 with an inner thread, so that the second threaded stud 21 is inside the space 6 of the steel beam structure 2 and so that the second threaded stud 21 is aligned with a second through hole 22 in the top plate 3 of the steel beam structure 2 so that the inner threads of the second threaded stud 21 is accessible through said second through hole 22. Such embodiments of the method comprises preferably, but not necessarily, providing the second threaded coupler 20 with a second anchoring means 23 for anchoring the second threaded coupler 20 in the concrete 7 that is in the filing step filled into the space 6 of the steel beam structure 2. Such embodiments of the method comprises preferably, but not necessarily, fastening, preferably by welding, the second threaded coupler 20 to the top plate 3. The purpose of such second threaded coupler 20 is to serve as a fastening means for lifting means (not illustrated in the figures) or the like.

[0027] The steel beam structure 2 that is provided in the providing step comprises preferably, but not necessarily, as illustrated in figure 20, a console supporting slot 25 extending from an end of the steel beam structure 2, wherein the console supporting slot 25 forms a first slot 26 in an end plate 27 of the steel beam structure 2 and a second slot 28 in the bottom plate 4 of the steel beam structure 2. The steel beam structure 2 that is provided in the providing step can is such case comprise a fill space 29 at at least one of the ends of the steel beam structure 2, wherein the fill space 29 being limited by a fill space housing 30 configured to separate the fill space 29 from the space 6 of the steel beam structure 2, so that the console supporting slot 25 being provided at least partly in the fill space 29, so that the console supporting slot 25 being separated from the space 6 of the steel beam structure 2 by the fill space housing 30, and so that the fill space housing 30 having a fill opening 31 and / or a fill channel (not illustrated in the figures) leading into the fill space 29. Providing of a such fill space 29 and providing the console supporting slot 25 partly in the fill space 29 makes mounting of the composite beam 1 for example at a frame of a building easier. The fill opening 31 and / or the fill channel leads preferably, but not necessarily, from the outside of the composite beam 1 between the top plate 3 and the fill space 29.

[0028] The filling step is preferably, but not necessarily, provided prior mounting the composite beam 1 at a building such at a frame of a building.

[0029] Next the composite beam 1 such as a steel concrete composite beam, arranged to serve together with concrete as a bearing composite structure for various slab systems 24, and some variants and embodiments of the composite beam 1 will be presented in greater detail.

[0030] The composite beam 1 comprises a steel beam structure 2 comprising a top plate 3, a bottom plate 4, and two web plates 5.

[0031] The top plate 3, the bottom plate 4, and the two web plates 5 of the steel beam structure 2 delimit, preferably together delimit, a space 6 that is at least partly filled with concrete 7 so as together with the steel beam structure 2 form the composite beam 1. In other words, the space 6 is formed between the top plate 3, the bottom plate 4, and the two web plates 5 of the steel beam structure 2. The steel beam structure 2 comprises preferably, but not necessarily, an end plate 27 at the ends of the steel beam structure 2, wherein the end plates 27 also delimit the space 6. In such case, the space 6 can be formed between the top plate 3, the bottom plate 4, the two web plates 5, and the end plates 27 of the steel beam structure 2.

[0032] At least one of the two web plates 5 of the steel being provided with at least one aperture 8. At least one of the two web plates 5 of the steel is preferably, but not necessarily, provided with a plurality of apertures 8.

[0033] The composite beam 1 comprises at least one concrete protrusion 13 and / or at least one depression 12, such as at least one blind hole or at least one recess, formed by concrete 7 filled in the space 6 of the steel beam structure 2 of the composite beam 1 at said at least one aperture 8.

[0034] The composite beam 1 can comprise either at least one concrete protrusion 13 formed by concrete 7 filled in the space 6 of the steel beam structure 2 of the composite beam 1 at said at least one aperture 8 or at least one depression 12 formed by concrete 7 filled in the space 6 of the steel beam structure 2 of the composite beam 1 at said at least one aperture 8 or both at least one such concrete protrusion 13 and at least one such concrete depression 12.

[0035] The depression 12 at said at least one aperture 8 in at least one of the two web plates 5 of the steel beam structure 2 of the composite beam 1 or alternatively, the concrete protrusion 13 at said at least one aperture 8 in at least one of the two web plates 5 of the steel beam structure 2 of the composite beam 1 functions as shear transfer means between concrete 7 in the space 6 of the composite beam 1 and cast-in-situ concrete that is cast outside the composite beam 1 as illustrated for example in figures 17 and 18.

[0036] Said at least one aperture 8 is preferably, but not necessarily, configured, such as dimensioned and designed, to allow concrete 7 in fluid form to flow through said at least one aperture 8 into the space 6 of the steel beam structure 2 of the composite beam 1 from the outside of the steel beam structure 2 and / or is preferably, but not necessarily, configured, such as dimensioned and designed, configured, such as dimensioned and designed, to allow concrete 7 in fluid form to flow out of the space 6 of the steel beam structure 2 of the composite beam 1 through said at least one aperture 8 from the space 6 of the steel beam structure 2 of the composite beam 1.

[0037] At least one of the two web plates 5 of the steel beam structure 2 of the composite beam 1 is preferably, but not necessarily, arranged slanted to the bottom plate 4, as in the first version of the steel beam structure illustrated for example in figure 1, where both web plates 5 are arranged slanted to the bottom plate 4, and in the second version of the steel beam structure illustrated for example in figures 5 and 6, where one of the web plates 5 are arranged slanted to the bottom plate 4.

[0038] One of the two web plates 5 of the steel beam structure 2 of the composite beam 1 can be arranged perpendicular to the bottom plate 4 as in the second version of the steel beam structure illustrated for example in figures 5 and 6.

[0039] At least one of the web plates 5 of the steel beam structure 2 of the composite beam 1 is preferably, but not necessarily, fastened to the bottom plate 4 so that a corbel flange 14 is formed outside the space 6 of the steel beam structure 2 of the composite beam 1. The purpose of the corbel flange 14 can for example be to serve as a support for the end of a hollow-core slab (not marked with a refence numeral) as illustrated in figures 17 to 19.

[0040] The steel beam structure 2 of the composite beam 1 has preferably, but not necessarily, at least one hole 15 in the top plate 3, wherein said at least one hole 15 is configured, such as dimensioned and designed, to allow concrete 7 in fluid form to flow through said at least one hole 15 into the space 6 of the steel beam structure 2 of the composite beam 1 from the outside of the steel beam structure 2 of the composite beam 1.

[0041] At least one of the two web plates 5 of the steel beam structure 2 of the composite beam 1 can be provided with a first threaded coupler 16 having a first threaded stud 17 with an inner thread so that the first threaded coupler 16 is provided in the space 6 of the steel beam structure 2 of the composite beam 1, so that first threaded stud 17 is aligned with a first through hole 18 in said at least one web plate 5, and so that the inner threads of the first threaded stud 17 is accessible through said first through hole 18. The first threaded coupler 16 is preferably, but not necessarily, provided with a first anchoring means 19 for anchoring the first threaded coupler 16 in the concrete 7 in the space 6 of the steel beam structure 2. The first threaded coupler 16 is preferably, but not necessarily, fastened, such as fastened by welding, to said at least one web plate 5. The purpose of such first threaded coupler 16 is to serve as a fastening means for reinforcement rods (not marked with a reference numeral) or the like.

[0042] The top plate 3 of the steel beam structure 2 of the composite beam 1 can be provided with a second threaded coupler 20 having a second threaded stud 21 with an inner thread so that the second threaded coupler 20 is provided in the space 6 of the steel beam structure 2 of the composite beam 1, so that the second threaded stud 21 is aligned with a second through hole 22 in the top plate 3, and so that the inner threads of the second threaded stud 21 is accessible through said second through hole 22. The second threaded coupler 20 is preferably, but not necessarily, provided with a second anchoring means 23 for anchoring the second threaded coupler 20 in the concrete 7 in the space 6 of the steel beam structure 2 of the composite beam 1. The second threaded coupler 20 is preferably, but not necessarily, fastened, such as fastened by welding, to the top plate 3. The purpose of such second threaded coupler 20 is to serve as a fastening means for lifting means (not illustrated in the figures) or the like.

[0043] At least one of the ends of the composite beam 1 can in some embodiments of the composite beam 1, comprise a console supporting slot 25 extending from said at least one end of the composite beam 1, wherein the console supporting slot 25 forms a first slot 26 in an end plate 27 of the steel beam structure 2 of the composite beam 1 and a second slot 28 in the bottom plate 4 of the steel beam structure 2 of the composite beam 1. In such case, steel beam structure 2 of the composite beam 1 can comprise a fill space 29 at at least one of the ends of the steel beam structure 2 of the composite beam 1, wherein the fill space 29 being limited by a fill space housing 30 configured to separate the fill space 29 of the steel beam structure 2 of the composite beam 1 from the space 6 of the steel beam structure 2 of the composite beam 1, wherein the console supporting slot 25 being provided at least partly in the fill space 29 so that the console supporting slot 25 being separated from the space 6 of the steel beam structure 2 of the composite beam 1 by the fill space housing 30, and wherein the fill space housing 30 having a fill opening 31 and / or a fill channel (not illustrated in the figures) leading into the fill space 29. Providing of a such fill space 29 and providing the console supporting slot 25 partly in the fill space 29 makes mounting of the composite beam 1 for example at a frame of a building easier. The fill opening 31 and / or the fill channel leads preferably, but not necessarily, from the outside of the composite beam 1 between the top plate 3 and the fill space 29.

[0044] The steel beam structure 2 of the composite beam 1 except for concrete at said at least one opening 8 forms preferably, but not necessarily, the outer surface of the composite beam 1.

[0045] It is apparent to a person skilled in the art that as technology advanced, the basic idea of the invention can be implemented in various ways. The invention and its embodiments are therefore not restricted to the above examples, but they may vary within the scope of the claims.

Claims

1. A method for producing a composite beam (1) such as a steel concrete composite beam, the composite beam serving together with concrete as a bearing composite structure for various slab systems (24), wherein the method comprising a providing step for providing a steel beam structure (2) comprising a top plate (3), a bottom plate (4), and two web plates (5), wherein the top plate (3), the bottom plate (4), and the two web plates (5) of the steel beam structure (2) delimit a space (6), and performing after the providing step a filling step for filling the space (6) of the steel beam structure (2) provided in the providing step at least partly with concrete (7) so that said concrete (7) together with the steel beam structure (2) form the composite beam (1), characterized by at least one of the two web plates (5) of the steel beam structure (2) that is provided in the providing step comprises at least one aperture (8), by performing prior the filling step a plugging step for plugging said at least one aperture (8) with a removable plug member (9) so that the removable plug member (9) forms a protrusion (10) extending into said space (6) of the steel beam structure (2) at said at least one aperture (8) and / or so that the removable plug member (9) forms at least one additional space (11) that extends from the space (6) of the steel beam structure (2) at said at least one aperture (8) and that is in fluid communication with the space (6) of the steel beam structure (2), and by performing after the filling step a removing step for removing the removable plug member (9) so as to provide in the concrete (7) filled in the filling step into the space (6) at least one depression (12) at said at least one aperture (8) and / or so as to provide by the concrete (7) filled in the space (6) in the filling step at least one concrete protrusion (13) at said at least one aperture (8).

2. The method according to claim 1, characterized by said at least one aperture (8) in said at least one of the two web plates (5) of the steel beam structure (2) that is provided in the providing step being configured to allow concrete (7) in fluid form to flow through said at least one aperture (8) into the space (6) of the steel beam structure (2) from the outside of the steel beam structure (2) and / or to allow concrete (7) in fluid form to flow through said at least one aperture (8) out of the space (6) of the steel beam structure (2).

3. The method according to claim 1 or 2, characterized by at least one of the two web plates (5) of the steel beam structure (2) that is provided in the providing step being arranged slanted to the bottom plate (4).

4. The method according to any of the claims 1 to 3, characterized by one of the two web plates (5) of the steel beam structure (2) that is provided in the providing step being arranged perpendicular to the bottom plate (4).

5. The method according to any of the claims 1 to 4, characterized by at least one of the web plates (5) of the steel beam structure (2) that is provided in the providing step being fastened to the bottom plate (4) so that a corbel flange (14) is formed outside the space (6) of the steel beam structure (2).

6. The method according to any of the claims 1 to 5, characterized by the steel beam structure (2) that is provided in the providing step has in the top plate (3) at least one hole (15) configured to allow concrete (7) in fluid form to flow through said at least one hole (15) into the space (6) of the steel beam structure (2), and by the method comprises filling the space (6) of the steel beam structure (2) in the filling step with concrete (7) through said at least one hole (15) in top plate (3).

7. The method according to any of the claims 1 to 6, characterized by providing at least one of the two web plates (5) of the steel beam structure (2) with a first threaded coupler (16) having a first threaded stud (17) with an inner thread, so that the first threaded coupler (16) is inside the space (6) of the steel beam structure (2), so that the first threaded stud (17) is aligned with a first through hole (18) in said at least one web plate (5), and so that the inner threads of the first threaded stud (17) is accessible through said first through hole (18).

8. The method according to any of the claims 1 to 7, characterized by providing the top plate (3) of the steel beam structure (2) with a second threaded coupler (20) having a second threaded stud (21) with an inner thread, so that the second threaded stud (21) is inside the space (6) of the steel beam structure (2), so that the second threaded stud (21) is aligned with a second through hole (22) in the top plate (3) of the steel beam structure (2), and so that the inner threads of the second threaded stud (21) is accessible through said second through hole (22).

9. The method according to any of the claims 1 to 8, characterized by the steel beam structure (2) that is provided in the providing step comprising a console supporting slot (25) extending from an end of the steel beam structure (2), wherein the console supporting slot (25) forms a first slot (26) in an end plate (27) of the steel beam structure (2) and a second slot (28) in the bottom plate (4) of the steel beam structure (2).

10. The method according to claim 9, characterized by the steel beam structure (2) that is provided in the providing step comprising a fill space (29) at at least one of the ends of the steel beam structure (2), wherein the fill space (29) being limited by a fill space housing (30) configured to separate the fill space (29) from the space (6) of the steel beam structure (2), so that the console supporting slot (25) being provided at least partly in the fill space (29), so that the console supporting slot (25) being separated from the space (6) of the steel beam structure (2) by the fill space housing (30), and so that the fill space housing (30) having a fill opening (31) leading into the fill space (29).

11. The method according to any of the claims 1 to 10, characterized by performing the filling step prior mounting the composite beam (1) at a building such at a frame of a building.

12. Composite beam (1) such as a steel concrete composite beam (1), arranged to serve together with concrete as a bearing composite structure for various slab systems (24), wherein the composite beam (1) comprising a steel beam structure (2) comprising a top plate (3), a bottom plate (4), and two web plates (5), and wherein the top plate (3), the bottom plate (4), and the two web plates (5) of the steel beam structure (2) delimit a space (6) that is at least partly filled with concrete (7) so as together with the steel beam structure (2) form the composite beam (1), characterized by at least one of the two web plates (5) of the steel beam structure (2) being provided with at least one aperture (8), and by at least one concrete protrusion (13) and / or at least one depression (12) formed by concrete (7) filled in the space (6) of the steel beam structure (2) of the composite beam (1) at said at least one aperture (8).

13. The composite beam (1) according to claim 12, characterized by said at least one aperture (8) being configured to allow concrete (7) in fluid form to flow through said at least one aperture (8) into the space (6) of the steel beam structure (2) of the composite beam (1) from the outside of the steel beam structure (2) and / or being configured to allow concrete (7) in fluid form to flow out of the space (6) of the steel beam structure (2) of the composite beam (1) through said at least one aperture (8) from the space (6) of the steel beam structure (2) of the composite beam (1).

14. The composite beam (1) according to claim 12 or 13, characterized by at least one of the two web plates (5) of the steel beam structure (2) of the composite beam (1) being arranged slanted to the bottom plate (4).

15. The composite beam (1) according to any of the claims 12 to 14, characterized by one of the two web plates (5) of the steel beam structure (2) of the composite beam (1) being arranged perpendicular to the bottom plate (4).

16. The composite beam (1) according to any of the claims 12 to 15, characterized by at least one of the web plates (5) of the steel beam structure (2) of the composite beam (1) being fastened to the bottom plate (4) so that a corbel flange (14) is formed outside the space (6) of the steel beam structure (2) of the composite beam (1).

17. The composite beam (1) according to any of the claims 12 to 16, characterized by the steel beam structure (2) of the composite beam (1) has at least one hole (15) in the top plate (3), wherein said at least one hole (15) being configured to allow concrete (7) in fluid form to flow through said at least one hole (15) into the space (6) of the steel beam structure (2) of the composite beam (1) from the outside of the steel beam structure (2) of the composite beam (1).

18. The composite beam (1) according to any of the claims 12 to 17, characterized by at least one of the two web plates (5) of the steel beam structure (2) of the composite beam (1) being provided with a first threaded coupler (16) having a first threaded stud (17) with an inner thread so that the first threaded coupler (16) is provided in the space (6) of the steel beam structure (2) of the composite beam (1), so that first threaded stud (17) is aligned with a first through hole (18) in said at least one web plate (5), and so that the inner threads of the first threaded stud (17) is accessible through said first through hole (18).

19. The composite beam (1) according to any of the claims 12 to 18, characterized by the top plate (3) of the steel beam structure (2) of the composite beam (1) being provided with a second threaded coupler (20) having a second threaded stud (21) with an inner thread so that the second threaded coupler (20) is provided in the space (6) of the steel beam structure (2) of the composite beam (1), so that the second threaded stud (21) is aligned with a second through hole (22) in the top plate (3), and so that the inner threads of the second threaded stud (21) is accessible through said second through hole (22).

20. The composite beam (1) according to any of the claims 12 to 19, characterized by at least one of the ends of the composite beam (1) comprising a console supporting slot (25) extending from said at least one end of the composite beam (1), wherein the console supporting slot (25) forms a first slot (26) in an end plate (27) of the steel beam structure (2) of the composite beam (1) and a second slot (28) in the bottom plate (4) of the steel beam structure (2) of the composite beam (1).

21. The composite beam (1) according to any of the claims 12 to 20, characterized by the steel beam structure (2) of the composite beam (1) comprising a fill space (29) at at least one of the ends of the steel beam structure (2) of the composite beam (1), by the fill space (29) being limited by a fill space housing (30) configured to separate the fill space (29) of the steel beam structure (2) of the composite beam (1) from the space (6) of the steel beam structure (2) of the composite beam (1), by the console supporting slot (25) being provided at least partly in the fill space (29) so that the console supporting slot (25) being separated from the space (6) of the steel beam structure (2) of the composite beam (1) by the fill space housing (30), and by the fill space housing (30) having a fill opening (31) leading into the fill space (29).

22. The composite beam (1) according to any of the claims 12 to 21, characterized by the steel beam structure (2) of the composite beam (1) except for concrete at said at least one opening (8) forming the outer surface of the composite beam (1).

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