WO1992003624A1

WO1992003624A1 - Profile for a steel skeleton construction

Info

Publication number: WO1992003624A1
Application number: PCT/EP1991/001603
Authority: WO
Inventors: Lorenz Kesting
Original assignee: Lorenz Kesting
Priority date: 1990-08-25
Filing date: 1991-08-24
Publication date: 1992-03-05
Also published as: EP0475168A1; CZ261691A3; PL294574A1

Abstract

The invention proposes a profile for a steel skeleton construction with a ridge in the form of an angle profile with openings in the profile sides.

Description

Steel skeleton construction profile

description

The invention relates to a steel skeleton construction profile according to the preamble of claim 1.

The steel skeleton construction, for which the new profile is intended, uses lighter metal, in particular cold-formed sheet metal profiles, which bear the loads and support the spaces between the profiles. The structure usually has no separate support function ^". The profile of the invention is provided on a regular basis for the removal of vertical loads and therefore especially suitable for the posts of rising walls.

For example, the invention relates to steel skeleton construction with large panels, which are manufactured as prefabricated parts and are installed above all in building construction. Insofar as the invention relates to the construction of a room cell, large panels of this type form the rising walls and possibly the floor panes of the room cell. The infills then generally consist of foam concrete. Such spatial cells are still portable as a whole, even with considerable dimensions. For example, they are suitable for large containers that serve different commercial and private purposes, especially residential purposes. Such large containers are floor-to-ceiling structures in lengths of approximately 10 to 12. Foam concretes, for which the steel skeleton construction profile according to the invention is intended in particular, are concretes which correspond to the density and strength of the rigid foam lightweight concretes. They contain a substantial amount of aggregate, for example, polystyrene foam particles in the form of a blowing agent-containing styrene polymer, which belongs to the group of thermoplastics. Here, monostyrene is obtained as an intermediate stage via benzene and ethylene and mixed with a blowing agent and water. In the subsequent curing polymerisation, the aggregate is obtained in round, glassy beads. If this material is softened by heating, the raw material particles expand, preferably using water vapor as a heat carrier and as an additional blowing agent. The foamed beads that form the aggregate are spherical and have a cell structure in the form of a large number of closed chambers. The raw densities and the final strengths dependent on them are chosen by the composition of the concrete so that they correspond to a structural concrete . A typical composition of such a foam concrete used, for example, in the large panels according to the invention is as follows:

350 to 430 kg / cbm cement 20 to 70 kg / cbm Rhine sand 800 to 500 1 / cbm foam particles 140 to 170 1 / cbm water.

With such compositions, there is a noticeable shrinkage which can lead to cracks in the infills. In order to keep the shrinkage as low as possible, which without a supporting core structure with a cement stone-rich composition of the Concrete reaches a maximum and, on the other hand, to be able to accommodate a maximum of the foam additive in the concrete, but to prevent crack formation, the foam concrete used in the new large panels can be a reinforcement in the form of textile, alkaline fibers, preferably poly - pror-, yl .ιstapelra ern - • rhalro.

In general, the steel skeleton construction profiles according to the invention, together with the trusses described, form a frame in which the profiles form frame members which are connected at an angle to one another. This takes on the static function that the foam concrete cannot perform. The new profiles preferably consist of folded sheet metal strips, which are expediently provided with rust protection, e.g. are galvanized. The steel skeleton construction profiles according to the invention form the frame stiffeners, which are usually arranged in pairs between the shorter outer frame members. Such frame stiffeners and possibly also the frame members should be light. That is why the new profiles consist in particular of folded sheet metal strips. The ends of the profile sections cut from this lie in the profile chambers of the longer frame members, which generally have a corresponding cross section, * so that the chambers are delimited on three sides by the profile legs and the profile webs and are open at least on one side inwards. To secure the bond, the stiffening profiles are fixed in the profile chambers of the frame members, for example welded.

When using such steel skeleton construction profiles made of sheet metal, a foam concrete corresponding bulk density used, which prevents the deflection or kinking of the profiles in the infills. This requires the infill to be anchored through a bond between the profile and infill.

Such panels are preferably produced in open formwork. Here, the finished frames are placed on spacers and the foam concrete is introduced from above with a layer which covers the profiles on their top side in the formwork with a comparatively thin layer of foam concrete, so that the frame profiles are completely in the hardened foam concrete disappear. This method of working places certain demands on the workability of the foam concrete, which ensures that the concrete fills the profile chambers, forms a smooth formwork surface on the spacer side and can be smoothed on the opposite side by pulling it off. This processability can be brought about in a proposal which is not yet state of the art in the frames and large panels according to the invention by adding concrete, in particular by a protein foaming agent concentrate, from which an air foam based on pro-hydrolyzate is produced the foam concrete and as a foam added in an amount which converts the initially crumbly mass in a thick and coating product, which flows into the formwork and thereby fills the mold spaces ^"and spaces.

The frame construction described here and the subsequent production of large panels from these frames are not part of the pre-published prior art (EPA 90 11 37 56.2). The steel skeleton construction profiles which form the stiffeners of the frames generally consist of pairs of C-shaped profile sections which have a profile web provided with one or more beads in order to increase their stiffness. The flanges of the C-profile s-.ir._a HΞich inside a gev / angled and thereby anchored -L-ιι concrete of the infills. The pairs of profile sections are spot welded together with their webs lying against each other at the flange root. These frame reinforcements are also attached by spot welding to the edges of the frame members, namely on the outside of the profile flanges emerging from the profile chambers.

However, it has been found that due to the shrinkage of the foam concrete during hardening on the profiles of the stiffeners, in particular at the comparatively small covering layer lying on top of the formwork, cracks easily occur. Also, the fastening of the stiffening profiles to the flanges of the frame members is often difficult and sometimes not sufficient, because the profile ends of the stiffening profiles can only be welded to the profile edges of the frame members on the outside and, as a result of the narrowness in the profile chambers, the welding there as a rule is unsustainable Time and work would be connected. Therefore, additional welding spots or even welding beads cannot be attached.

The object of the invention is to prevent cracks from occurring in the stiffeners, in particular at the points described, and to facilitate the fastening of the stiffening profiles.

According to the invention, a first solution to this problem consists in the features of claim 1. Further features of this solution are the subject of the dependent claims relating to this.

Compared to the conventional profile shapes, the invention simplifies the bracing by using angle profiles. These lie with the outer edges of the angle vertices in the depth of the concrete of the infills. They are anchored to the foam concrete in the infills by the recesses provided in the profile legs, which are traversed by the foam concrete during processing, as a result of which there are connections made of concrete which penetrate the profiles and end in adjacent infills. Since the outer edges of the angular apex lie and are fixed in the profile chambers, the profile legs run into the depth of the infills. As a result, in particular on the particularly endangered side of the board, as well as on the opposite side, a wedge-shaped foam concrete filling is produced which prevents the formation of cracks or counteracts the formation of cracks. The resultant simplification of the profile shape has the advantage that the angle leg edges in the profile chambers are accessible and can be fixed there with welding beads or welding points.

The invention has the advantage that, in addition to reducing crack formation and improving the connection of the frame members with the stiffeners allows simplification of the profile production for the stiffeners. In particular, it is possible to produce the cutouts together with the bends with which the angle profiles are obtained from sheet metal strips.

Preferably and in accordance with the possibilities of the invention, additional anchoring of the stiffening profiles in the foam concrete infills can be obtained through the cutouts. This embodiment of the invention is the subject of claim .2. This avoids any sheet metal waste in the production of the stiffening profiles because the cutouts required for the cutout remain on the profiles. They serve as anchors in the foam concrete infill.

It is useful to provide these anchors in the profile chambers, which is achieved with the features of claim 3. In general, it is sufficient to use the tongues as anchors. In this case, the embodiment corresponds to that according to claim 4. However, it is possible to achieve an additional anchoring effect by means of a special shape. This is achieved with the features of claim 5.

According to a further solution to the problem, which is the subject of claim 8, is also an angle profile instead of the known C-profile. based on the new profile shape. Here, however, at least one of the angle legs is provided with a flange. This creates an open profile chamber, into which the concrete reliably penetrates and fills it. On the other hand, an improvement in the stiffness of the angle profile is achieved, so that the back-to-back There is no need to weld pairs of profile sections with the unpleasant consequence of cracks in the too thin concrete cover.

The angle leg, which is oriented parallel to the plane of the panel-shaped structural element, can be used as a fastening means for a building board which is screwed to this flange, for example with a self-drilling screw, and which is made of plasterboard or mortar reinforced on one side with a plastic mesh or Concrete disc is there. This structure of the board means considerable progress in rationalization for the rising walls, because it saves the cleaning work in the finished building, which would otherwise be necessary because of the natural roughness of the removed foam top inside the building.

With the features of claim 9, the shape of this angle profile according to the invention is further optimized. The realization of the features of claim 10 turns the profile chamber, which is only completely closed on one side, on the side opposite the angle, into a chamber which is further closed by the inward angle at the end of the profile flange. This leads to better anchoring in the concrete, which makes further anchoring measures appear superfluous. In addition, the profile flange in question can be made longer because it is more dimensionally stable due to the angle leg. A longer profile flange alleviates the problem of fastening the building board, among other things, because it is easier to hit it with the screw and the joint arrangement of the building board cover. If two profile flanges are provided, which is the subject matter of claim 11, the short flange is oriented downward in the formwork of the frofilelomees. In this embodiment of the invention, too, an angle can be provided which further closes the profile chamber and thereby reinforces the interlocking with the toothing.

The embodiments described above assume that the truss profiles are doubled in the trusses and welded back to back in order to thereby form profile chambers on each truss side which are filled with the concrete of the recesses when the panels are lying manufactured while pouring the frame with the lightweight concrete. Insofar as the crossbeams are angular profiles which have recesses in both profile legs and must therefore be welded into the profile chambers, the apex line of the two angle legs runs approximately in the middle of the panel or the infills. This creates difficulties in production because the angle profiles must be held in the formwork accordingly until they are fixed in the profile chambers by their welding. In addition, the cutouts give rise to strength problems which cannot be fully controlled by an increased sheet thickness, but which lead to increased costs.

However, the invention also solves this special problem in a simple manner, namely, inter alia. with the features of claim 15.

According to this embodiment of the invention, the arrangement of the cutouts in a central leg of the profile ensures that the construction fabric bridge between the infills approximately in the central plane of the table, where they are most effective and that the profile flanges arranged in parallel planes are unprotected, whereby the strength is improved. Since these profile flanges can be supported on the profile flanges of most U-shaped frame profiles in the case of truss ends inserted in the profile members of the frame members, they are stably fixed for welding and can be dipped into them without difficulty.

In this way, however, the invention not only facilitates the processing of the cross-beam profiles and improves their strength, it also ensures, by using the profile flanges on both sides, an improved dimensional stability of the cross-beams, which has a favorable effect on the concrete bridges between the infills Security of the truss profiles against buckling affects. In this way, the traverses can be produced from thin sheet metal strips, which are preferably galvanized and are therefore protected against corrosion. In the finished panel, the overlap of the profile flanges is sufficient to prevent the formation of cracks.

Preferably and with the features of claim 16, the steel skeleton construction profiles according to the invention are designed in such a way that they are easy to manufacture. Since the cutouts in the central axis of the profile are aligned, congruent and made at a uniform division, they can be punched out of the profile leg with the aid of simple tools. The irregular limits imposed by the outstanding tongues made recesses help to additionally fix the profiles in the concrete bridges.

In the simplest embodiment of the profile according to the invention, which is given in claim 17, all profile flanges and the profile legs are flat, so that a Z-profile results. Such a profile can be produced simply because it can be folded from a sheet steel strip, which is the subject of claim 18.

However, the invention is not limited to simple profile shapes, but can be realized with profiles that have a relatively greater rigidity. The basic profile provided for this purpose according to the invention is given in claim 19. Here, the profile leg is improved in shape by the formation of the divergent profile strips, without losing its flat shape, which is favorable for the recesses, which are in this embodiment in the center bar.

This basic profile is further developed with the features of claim 20. This also improves the stiffness of the profile strips of the profile leg.

With the features of claim 21 results in a box-like, cross member profile open on one side, the profile flanges of which are additionally improved in their dimensional stability by the trapezoidal beads. As a result of their inwardly drawn arrangement, these beads also reduce the widths of the parallel to the outer sides of the panels. fenden metal strips, which also counteracts the formation of cracks over the trusses.

With the features of claims 22 and 23, the open side of the profile chamber of the trusses is restricted, as a result of which the enclosed concrete is additionally held and thus its function is increased to protect the truss profile against buckling.

This truss profile thus optimized can no longer be bent, but can be produced by rolling, which is the subject of claim 24.

The details, further features and other advantages of the invention result from the following description of an embodiment with reference to the figures in the drawing; show it

1 a frame according to the invention in a top view and in an interrupted view,

Fig. 2 is a blackboard according to the invention in

Side view, interrupted representation and showing the connection point to the base plate of a room cell,

3 is a perspective view of one of the stiffening profiles,

FIG. 4 shows a perspective interrupted view at point IV in FIG. 1,

Fig. 5 shows the representation of a modified

Steel skeleton construction profile according to the invention, 6 shows another embodiment of the object of FIG. 5,

7 is a horizontal, broken section through a large panel according to the invention using the profile of FIG. 5,

8 is a vertical, simplified representation of a corner of a building, the large panels of which are provided with the profile according to the invention,

FIG. 9, in a representation corresponding to FIG. 7, an embodiment modified in comparison therewith,

Fig. 10 is a steel skeleton construction profile according to the

Invention in a first embodiment showing the profile line,

11 is a view of the subject of FIG. 10,

12 shows the profile leg of the object of FIGS. 10 and 11 in plan view,

13 is a perspective view of an optimized profile according to the invention,

Fig. 14, the profile line of the object of Fig. 13 and

FIG. 15 in a representation corresponding to FIG. 14 shows another embodiment of the invention. The frame generally designated (1) is used to produce a large board (2) made of foam concrete, which is shown at (3) in FIG. 2. The frame consists of profiled and mutually parallel longitudinal frame members (4, 5), which are connected to the shorter and also mutually parallel frame members (6 and 7) rigidly. The longitudinal frame members (4 or 5) have a generally U-shaped profile with a flat web (8 or 9) and mutually parallel profile legs (10 or 11 and 12 or 13). They are oriented in such a way that they each form a profile chamber which is open to the interior of the frame and which is designated by (14) in the illustration in FIG. 4.

The frame (1) has a plurality of frame reinforcements (15-25) (FIG. 1). Infill panels (26-37) are made between them, which consist of the foam concrete. Each frame stiffener consists of a profile section (38, 39) (Fig. 4), which are arranged in a frame dimension parallel to the frame members (6 and 7). The profile backs (40) of the profile sections (38, 39) later lie in the depth of the infill concrete. The ends of the profile sections (38, 39) are designated by (41 and 42) in Fig. 4. They are in the profile chambers (14) of the longer frame members (4, .._ 5), which limit the other frame dimension.

The profile sections (38, 39) are angle profiles. They have angular legs (44, 45) (FIG. 3) oriented at right angles to one another. Recesses (46, 47) (FIG. 4) are located at regular intervals in the angle legs. They serve to block the profile sections (38, 39) with the foam concrete of the infills (26-37), whereby the adjacent infills are each connected to one another by the recesses (46 and 47). For the sake of clarity, the cutouts and cutouts in the drawings are much larger than those drawn in practice.

Along the arstell σ the F ^! .G. 4 allows * *a reinforcements to be reinforced if the angle profile sections (38, 39) in pairs each have facing outer edges (48) of the angle apex

(49) are applied to one another and welded, so that there is an X-shape of the profile pairs (38, 39).

The ends (41, 42) are on one of their angle leg edges, as in the example of the angle leg edge

(50) in Fig. 4, welded in the profile chambers (14). For this purpose, a welding bead (51) is used, which welds the leg (45) to the flange (10) of the U-profile of the upper frame member (4). A corresponding welding bead arrangement is provided on the opposite angular profile edge (43) and on the flange (11). The profile front edges can also be welded.

The cutouts (47) from the profile legs (44, 45) can be completely removed, which is the case in the exemplary embodiment in FIG. 4. In the exemplary embodiment according to FIG. 3, the cutouts are punched out only on three edges (52-54) and along the fourth edge (55), which runs parallel to the cutout edge (54), in which one leg ( 44) bent inwards and in the other leg (45) outwards as tongues (57). They serve as anchors in the neighboring infills (26-37), where they extend into the foam concrete. In the exemplary embodiment in FIG. 3, the cutouts are square, so that the sides (52-55) are perpendicular to one another. The resulting rectangular tongue shape can be changed. This amendment is not shown. In particular, however, the tip of the tongue (57) can be widened, which results in an improvement in the anchoring effect.

The profiles (38, 39) shown are folded from flat sheet metal strips. The recesses (46) are preferably created in the same operation by punching out. If tongues (57) are to be formed with the cutouts, they can also be bent out in the same operation.

In the manufacture of the large panel (2), the frame is first welded together as described and lies on the bottom of an open formwork. Spacers, not shown, ensure that the flanges (10 and 12) of the frame members (4, 5) are covered at (58). These flanges are located in the formwork below. The foam concrete is then introduced, which then completely covers the stiffening profiles (38, 39), which takes place with a layer thickness (59). The outer profile chambers (60, 62) are also filled, which results in a comparatively thick foam filling in the area of the profiles (38 and 39).

The lower frame profile (5) is left out and can therefore later ^" with a self-drilling screw (63), which has a correspondingly designed frame profile (64), a base plate (65), and the profile leg (13) and the subsequent foam concrete penetrates.

In the exemplary embodiment in FIG. 2, a gypsum plasterboard (66) is provided, which covers the surface of the foam infills (26-37).

The steel skeleton construction profiles generally designated (70 and 71) in FIGS. 5 and 6 are also bent for the angular profiles of the profile sections (38, 39) from galvanized sheet steel strips which, for example, are continuously pulled from a coil by the folding machine and behind the folding machine can be cut to length. While the profile sections (38, 39) can be welded back to back, this is generally not provided for the profiles (70, 71), so that these profiles each form a frame stiffener and, where appropriate, the rising frame members . The profiles (70 and 71) are also not provided with recesses or other measures for anchoring in the foam concrete of the infills.

5, a partially closed profile chamber (72) is provided for this. It is formed by further profile parts, which form the web (73) of the profile with the legs (74, 75) and which form a structural unit with the web (73). This includes a profile flange (76, 77). The profile flange (76) with the associated angle profile leg (74) includes an obtuse angle] of 135 °. The profile flange (77) opposite it forms a right angle with the angle profile leg (75) assigned to it, the angle legs (74 and 75) also making a right angle lock in. According to the embodiment of FIG. 5, an angled leg (77) is also attached to the end of the flange (76). This in turn encloses a right angle with the flange (76).

When producing a large panel (79) and when using the profile (70) to form reinforcements, the reinforcements (38 and 39) of which correspond, the profile is oriented in such a way that one of its legs, namely the leg (76) parallel to the main plane of the board, ie is oriented towards its middle level. In contrast to the U-profiles forming the longitudinal frame members according to the exemplary embodiments according to FIGS. 1 to 4, the stiffness of the profile (70) enables the use of angle profiles (80 and 81) at each end of the stiffeners, whereby these angle profiles (80 and 81) can be easily welded to the profiles (70) because of the exposed profile edges. The profile (81) lies in the formwork below, so that there is an overlap at (82) and an outside of the panel element consisting of the foam concrete. The concrete cover (83) in the formwork is removed and covered with a building board (84) to save plastering work in the building. The leg (76) then serves to fasten the building board (84) with the aid of a self-drilling screw which is screwed in at (85) and penetrates the building board (84) and the leg (76).

The profile (71) shown in FIG. 6 differs from the exemplary embodiment according to FIG. 5 by the arrangement of the flange (77) on the angle leg (75) with which it has an angle of 135 ° instead of as seen in the embodiment of FIG. 5, includes an angle of 90 °. The horizontal leg (77) ^τ ,. Is placed on the horizontally oriented leg (86) of the angle profile (81) and welded at the end of the respective stiffening. The horizontal arrangement of the flange (77) makes it easier to carry out this work.

5 and 6, the profile flange (76) oriented parallel to the plane of the component (79) over the length of the vertical projection of the leg (77) in the arrangement according to FIG. 5 or according to Fig. 6 extended. The leg (78) on the outer edge (76a) of the flange (76) is angled in the direction of the professional chamber (72). Fig. 8 shows that the leg (76) in the corner (79) of a building for connecting the rising walls (80 and 81) can be used advantageously. For this purpose, the shorter frame members (6, 7), which are welded rigidly to the longer frame members (4, 5), are made from sections of the profile (70). The profile legs (76) are oriented outwards. The angle leg (78) of the frame members (6, 7) is in each case in a recess (82 or 83) on the inside (84 or 85) of the rising walls (80 and 81). As a result, the edges (76a) of the frame members (6, 7) can be welded and a secure connection of the rising walls (80 and 81) can be started.

In the exemplary embodiment of FIG. 9, the profile (70) according to FIG. 5 is again used. The structure of the table element (86) differs from that of the table element (79). Because between the building board (84) and a spacer (88) is located on the top (87) of the foam concrete cover (83). This is formed by strips (89) which are penetrated by the self-drilling screw (85) with which the building board (84) is connected to the profile flange (76). For example, the strips (89) are made of wood. They are spaced apart and screwed together with the building board (84). The cavities formed between the strips serve to lay lines and pipes, so that fully installed panels (86) can form the rising walls (80 and 81).

The steel skeleton construction profile generally designated in (10) in FIG. 10 has recesses (104) in its leg (102), which are aligned according to a regular division (105) in a central axis of the profile (101) and are congruent. The cutouts accordingly have a generally rectangular outline, the longer sides (105, 106) of which run parallel to the center line (107), while the shorter sides (108, 109) of the rectangular plan are arranged transversely to the center line. The profile leg (102) which has the cutouts ends at a bending line (110, 111), each of which is followed by a profile flange (112, 114). At the bending line, the parts described merge into one another over a narrow radius of, for example, 20 mm. The profile flanges are arranged in parallel planes and form an acute angle with the profile legs, which is denoted by α or ß. As can be seen from the illustration in FIG. 10, these angles are alternating angles which enclose the profile flanges (112, 114) with the profile leg (102) which carries the cutouts (104). The flange ends (115, 116) are each angled inwards and in turn form an acute angle with the flanges.

In the exemplary embodiment, which is shown in FIGS. 10 to 12, one of the profile flanges, namely the profile flange (114), in turn has cutouts (117) which, like the cutouts (104) in the leg (102 ) are shaped and arranged. Here too there is a regular division

(118) complied with. The recesses (117) are aligned along the central axis (119) of the flange (114) and are congruent. They are rectangular, the longer sides of the rectangle (120, 121) parallel to the central axis (119) and the shorter sides of the rectangle (122, 123) perpendicular to the central axis

(119) run.

The profile shown can be folded from a sheet of steel sheet. The sheet steel strip is preferably galvanized. The method of production described is comparatively simple.

In contrast, the steel skeleton profile according to FIGS. 13 and 14, which is generally designated by (124), has a profile leg (125) which, like the profile leg (102), is flat and has rectangular recesses (126) which are aligned in the central axis of the leg, are congruent and are punched out of the leg (125) in a uniform division. Bending lines (127, 128) run on both sides of the cutouts (125), which are followed by profile strips (129 and 130) diverging to one side, namely to the outside. The profile strips (129 and 130) together with the flat center bar (131), in which the recesses (126) are arranged, form the profile leg (125), on the bending lines (131, 132) of which follow the bending lines (110, 111) of the profile 10 to 12, which connect the profile flanges (133, 134. These are in turn arranged in parallel, ie vertical planes and, due to the arrangement of the strips (129, 130), form an acute angle with the profile leg (125) a.

This optimized steel skeleton construction profile (124) shown in FIGS. 13 and 14 has in its two profile strips (129, 130) adjoining the central strip (131) outwardly angled ends (135, 136) which are connected to the bending lines (131 , 132) of the flanges (133, 134 ^* ).

The profile flanges have inwardly drawn, symmetrically arranged and trapezoidally converging beads (137, 138) which stiffen the profile flanges. The profile flange ends (139, 140) are angled inwards and enclose the same but acute angles τ with the flanges (133, 134). These flange ends (139 and 140) have upwardly angled edges (141, 142), which improves their dimensional stability and also forms an additional sub-chamber which is filled with the building material.

The optimized profile (124) shown in FIG. 14 is rolled from sheet steel. Its shape is chosen so that the recesses in the profile chamber can be punched out of the central strip. The punching creates irregular edges of the recesses, creating an additional claw the concrete bridges is achieved, which pass through the recesses forming ^'αfr between adjacent Ausfa- nts.

According to the embodiment according to FIG. 15, it is provided that the flanges (143, 144) enclose an angle profile (145), the two legs (146, 147) of which have the recesses (148a), the apex line (148) of the angle profile (145) runs in the middle of the profile.

Claims

1. Steel skeleton construction profile, characterized by an angle profile with recesses (46, 47) in the profile legs (44, 45).

2 .. Steel skeleton construction profile according to claim 1, characterized in that cutouts (47a) form the recesses (47) and are bent out along one edge (55) as tongues.

3. Steel skeleton construction profile according to one of claims 1 or 2, characterized in that the tongues formed by the cutouts (47a) of one angle (44) inwards into the Profilkam¬ mer (56) and the tongues of the other Winkelschen¬ leg are bent outwards.

4. Steel skeleton construction profile according to claim 1 and one of claims 2 or 3, characterized in that the edges of the recesses (46, 47) and the edges (52-54) of the cutouts (47a) are perpendicular to each other.

5. Steel skeleton construction profile according to claim 1 and one of claims 2 to 4, characterized in that the tongues formed by the cutouts (47a) have widened tongue tips.

6. Steel skeleton construction profile according to claim 1 and one of claims 2 to 5, characterized in that the -. B NEN of the cutouts (47a) run perpendicular to the planes of the angle legs (44, 45).

7. Stahlsκel ctbau profile according to claim 1 and one of claims 2 to 6, characterized in that the angle profiles (38, 39) bent from sheet metal strips and in this case the recesses (46, 47) and the bends of the cutouts (47a) are.

8. Steel skeleton construction profile, characterized in that its web (73) is designed as an angle profile (74, 75) and the profile legs (74, 75) have flanges (76, 77) which with the Winkel¬ profile legs (74, 75 ) enclose an acute to obtuse angle, at least one of the profile flanges (76) being oriented parallel to the plane of the steel skeleton construction element (79).

9. Steel skeleton construction profile according to claim 1, characterized in that the legs (74, 75) of the angular profile (73) include a right angle and with the profile flange (76) oriented parallel to the plane of the steel skeleton construction element (79) ) enclose an angle of 135 °.

10. Steel skeleton construction profile according to one of claims 8 or 9, characterized in that one of the profile flanges (76, 77) with a Winkelprofil¬ leg (75) includes a right angle.

11. Steel skeleton construction profile according to one of claims 8 to 10, characterized in that one of the parallel to the plane of the steel skeleton construction element (79) oriented profile flanges (76) over the length of the vertical projection of the other profile flange (77) and extended at it The outer edge (76a) is provided with a leg (78) which is angled in the direction of the profile chamber (72).

12. Steel skeleton construction profile according to claim 11, characterized in that the leg (78) arranged on the outer edge (76a) includes a right angle with the profile flange (76).

13. Use of the externally arranged profile flanges (76) on steel skeleton construction profiles according to claims 8 to 11, which are connected as shorter frame members (6, 7) with longer frame members (4, 5) at stiff angles, for the welding fastening of rising ones Walls (80, 81) forming steel skeleton construction elements in the corner (79) of a building.

14. Use of the longer flanges (76) of stiffeners (38, 39) in the framework of steel skeleton construction elements forming steel skeleton construction profiles, according to claims 8 to 11 for fastening spacers (88) of inner building boards (84) for the formation of installation channels.

15. Steel skeleton construction profile according to one of claims 1 to 14, characterized in that one of the recesses (104, 126) having profile legs (102, 125) ends at a bending line (110, 111; 131, 132) and on the bending lines (110, 111; 131, 132) Connect profile flanges (112, 114; 133, 134), which are arranged in parallel planes, which form an acute angle (, ß) with the profile arm (125).

16. Steel skeleton construction profile according to claim 15, characterized in that the recesses (104, 126) along an axis (107) of the profile (101, 124) are aligned, congruent and arranged in a uniform division (104a, 118) .

17. Steel skeleton construction profile according to one of claims 15 or 16, characterized in that the profile flanges (112, 114) with the profile leg (102) include acute angles (, ß).

18. Steel skeleton construction profile according to one of claims 15 to 17, characterized in that it is folded from a sheet steel strip, the recess (104) of the profile leg (102) and recesses (117) of a profile flange (114) are punched out.

19. Steel skeleton construction profile according to one of claims 15 or 16, characterized in that the profile leg (125) has bending lines (127, 128) on both sides of its recesses (126) and follows along the bending lines (127, 128) Connect divergent profile strips (129, 130) on one side, which together with the flat central strip (131) in which the recesses (126) are arranged, form the profile leg (125) and on the bending lines (131, 132) of the profile flanges (133, 134) end.

20. Steel skeleton construction profile according to claim 19, characterized in that the profile strips (129, 130) adjoining the central strip (131) have outwardly angled ends (135, 136) on the bending lines (131, 132) Flanges (133, 134) end.

21. Steel skeleton construction profile according to one of claims 19 or 20, characterized in that the profile flanges (133, 134) have inwardly drawn, trapezoidally outwardly converging beads (137, 139) which are mirror-symmetrical in the flanges (133, 134) run.

22. Steel skeleton construction profile according to one of claims 19 to 21, characterized in that the flange ends (115, 116; 139, 140) are angled inwards and enclose acute angles (τ) with the flanges (133, 134).

23. Steel skeleton construction profile according to one of claims 19 to 22, characterized in that the flange ends (139, 140) have upwardly angled edges (141, 142).

24. Steel skeleton construction profile according to one of claims 19 to 24, characterized in that it is rolled from a sheet steel strip, the recesses (126) being punched out.

25. Steel skeleton construction profile according to one of claims 15 or 16, characterized in that the flanges (143, 144) include an angle profile (145), the two legs (146, 147) of which have the cutouts (148), the Shit Tellinie (148) of the angle profile (145) runs in the middle of the profile.