EP4441307A1 - Tragelement sowie verfahren zur herstellung eines solchen - Google Patents
Tragelement sowie verfahren zur herstellung eines solchenInfo
- Publication number
- EP4441307A1 EP4441307A1 EP22817191.4A EP22817191A EP4441307A1 EP 4441307 A1 EP4441307 A1 EP 4441307A1 EP 22817191 A EP22817191 A EP 22817191A EP 4441307 A1 EP4441307 A1 EP 4441307A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- intermediate element
- chord
- upper chord
- lower chord
- press
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
- E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
Definitions
- the invention relates to a support element having an upper chord, a lower chord and an intermediate element connecting the upper chord to the lower chord, the intermediate element being formed by a metal sheet having elevations and depressions, in particular a trapezoidal metal sheet.
- the invention relates to a method for producing a support element, an upper chord and a lower chord being provided, after which an intermediate element having elevations and depressions is connected to the upper chord and lower chord by screws.
- the object of the invention is to specify a support element of the type mentioned at the outset, which can be produced in a particularly simple and cost-effective manner.
- the first object is achieved according to the invention by a support element of the type mentioned at the beginning, in which the intermediate element rests at least in regions on the upper chord and lower chord and the sheet metal is connected to the upper chord and lower chord by screws, the screw heads of the screws being attached to the outside of the upper chord or lower chord are arranged and the screws are screwed into press-in nuts attached to the intermediate element.
- the support element it was recognized that with such a design of the support element, it is simple and inexpensive to produce, especially since the press-in nuts can be arranged in advance on screw openings of the intermediate element provided for screws, so that the support element can be assembled on site, for example, at a construction site It is sufficient if the top chord, bottom chord and intermediate element are positioned next to one another and connected to one another by screwing in the screws. In particular, it is not necessary to keep nuts and, if necessary, washers or the like separately, while a screw has to be screwed in from another side, as is usual in prior-art constructions. Assembly can thus be carried out in a simple manner with a minimum of personnel, for example with a cordless screwdriver or a torque wrench.
- the elevations and depressions of the intermediate element usually extend at least partially in a plane which is normal to a direct connection between the upper chord and lower chord, i.e. generally transverse to a longitudinal axis of the upper chord and lower chord, so that there is also a high Section modulus and thus high rigidity can be achieved.
- the upper chord and/or the lower chord are formed by hollow profiles, in particular square profiles, preferably square tubes, which have tab openings in which tabs of the intermediate element are positioned.
- hollow profiles in particular square profiles, preferably square tubes, which have tab openings in which tabs of the intermediate element are positioned.
- This enables a particularly simple installation.
- a support element ensures high rigidity in different spatial directions.
- the tab openings generally have dimensions that correspond to the dimensions of the tabs and are preferably arranged on an upper side of the hollow profile, in particular adjacent to a side surface.
- the intermediate element thus preferably has lugs which have a lug height which approximately corresponds to a profile height of the hollow profiles.
- the profile height corresponds approximately to the length of the side surfaces of the hollow profiles.
- the lugs can then lie flat on the inside against the side faces of the hollow profiles in order to ensure a good frictional connection.
- the lugs preferably have bores or approximately circular screw openings on which the press-in nuts are arranged in order to connect the lugs arranged on the inside of the hollow profiles with screws to the hollow profiles or upper chord and lower chord, which screws are driven from the outside through the side surfaces of the upper chord or .
- the lower chord is guided and screwed into the press-in nuts arranged on the straps.
- the tabs are thus located between the press-in nuts on the one hand and the side faces of the hollow profiles on the other hand, as a result of which particularly good pressing of the tabs against the insides of the hollow profiles can be achieved.
- a particularly high level of rigidity of the support element is achieved when the tabs in the hollow profiles rest on the insides of the hollow profiles, preferably on opposite insides.
- both the elevations and the depressions of the intermediate element can be connected to the upper chord and lower chord.
- the lugs of the intermediate element thus preferably protrude through lug openings, which are arranged on the top sides of the upper chord and lower chord, and rest on the insides of side surfaces of the upper chord and lower chord, which are usually formed by hollow profiles.
- the side surfaces connect tops of the hollow profiles to bottoms.
- a distance between elevations and depressions of the sheet metal or when the intermediate element is formed with a trapezoidal sheet metal corresponds to a side surface distance between side surfaces of the hollow profiles which form the upper chord and/or lower chord.
- a planar connection of the intermediate element to the hollow profiles on opposite side surfaces is possible, with the connection preferably taking place on the inside in order to achieve particularly simple manufacturability.
- a tab spacing in the transverse direction usually corresponds to a spacing between elevations and depressions or, if the intermediate element is formed as a trapezoidal sheet metal, to a height of the trapezium.
- screw openings on which the press-in nuts are arranged, are arranged on the tabs, specifically on a side opposite a contact surface of the intermediate element with the upper chord or the lower chord.
- the screw openings which can also be embodied as bores, are usually embodied as through-holes, so that the tabs arranged in the hollow profile are guided by screws, which are guided from an outside of the hollow profile through corresponding bores or screw openings in the hollow profile and in the tabs and into the press-in nuts be screwed, can be clamped flat between the press-in nuts and the side surfaces of the hollow profiles. Appropriate clamping enables good power transmission.
- the screw openings are preferably introduced into the metal sheet, which forms the intermediate element, by laser cutting, so that simple and process-reliable production is ensured.
- a thickness of the sheet metal of the intermediate element and/or the hollow profile can be, for example, 1 mm to 30 mm, preferably 5 mm to 15 mm. It goes without saying that this thickness is selected depending on an expected load, which in the case of a carrier can also be determined, for example, by a length, a span or a projection.
- the sheet metal or the intermediate element usually has approximately the same thickness throughout, which consequently also generally corresponds to a tab width.
- the screws and nuts are usually also dimensioned according to an expected load and can be designed with a nominal size of M10, M14 or M16 in order to achieve good contact pressure of the brackets on the hollow profiles.
- the intermediate element is preferably made to have tabs which are spaced apart along a transverse direction and which are connected to opposite side surfaces of the hollow profile, preferably in a planar manner. This way one becomes special high rigidity also achieved in a transverse direction.
- the tabs are thus usually spaced apart both along a longitudinal axis of the upper chord and lower chord and along a transverse direction which is normal to the longitudinal axis.
- the tab openings and/or the screw openings are formed by laser cutting.
- the tab openings in the upper chord and in the lower chord can be adapted to the dimensions of the lugs in a particularly simple manner in order to achieve a particularly precise connection of the tabs of the intermediate element to the upper chord and lower chord at the same time with little weakening of the upper chord or lower chord.
- the screw openings which correspond to the dimensions of screws, through which the upper chord or lower chord are connected to the intermediate element, are preferably made by laser cutting in the upper chord, lower chord and/or intermediate element.
- the tab openings extend to a side surface of the hollow profile and have an opening width which corresponds at least to a tab width plus a height of the part of the press-in nut protruding from the intermediate element, with the width preferably being less than the tab width plus twice one Corresponds to the height of the part of the press-in nut protruding from the intermediate element.
- the tab openings are preferably just big enough for the tabs, together with the press-in nuts usually already arranged on them, to be inserted into the tab openings, but not much larger in order to minimize material weakening on the upper flange and lower flange.
- the strap width corresponds to a sheet metal thickness of the sheet metal from which the intermediate element is formed.
- tab openings are introduced into the hollow profiles by laser cutting, a corresponding dimension can be achieved in a particularly simple, process-reliable and precise manner.
- the tab openings can thus have an opening width of 15 mm to 30 mm, for example.
- An opening length of the tab openings usually corresponds approximately to a tab length of the tabs and can be 20 mm to 200 mm, for example.
- the intermediate element between the straps which are positioned in the upper chord or in the lower chord, rests at least in regions on an outside of the upper chord or the lower chord. It is thus possible to transmit force not only at the straps, but also along a region between the straps, contact usually taking place via an end face of the intermediate element to an upper side of the upper chord or lower chord.
- the intermediate element can be formed in a wide variety of ways, for example by a welded construction with elevations and depressions.
- a particularly simple way of manufacturing is achieved when the intermediate element is formed by a bent metal sheet.
- the intermediate element can have a metal sheet bent into a trapezoidal metal sheet or be formed by such a metal sheet.
- the intermediate element is usually connected to the upper chord or lower chord by press-fit nuts and screws that are pressed into the intermediate element and protrude through the upper chord or lower chord and screw openings in the intermediate element.
- a support element according to the invention is easy to produce and at the same time has high rigidity and strength in different spatial directions. Accordingly the support element can be used for a wide variety of purposes. It is particularly favorable if a structure, in particular a carport or a building, which has a support contains a support formed by a support element according to the invention. As a result, the structure can be manufactured simply and inexpensively, while at the same time a high degree of rigidity and strength can be achieved.
- the further object is achieved according to the invention by a method of the type mentioned at the outset, in which the screws are guided through the side surfaces of the upper chord or lower chord and screwed into press-in nuts arranged on the intermediate element in order to press the intermediate element in certain areas onto the upper chord or lower chord.
- the intermediate element can thus be manufactured in advance with the press-in nuts arranged on it, so that assembly on a construction site can be carried out very easily.
- a contour of the intermediate element is formed at least partially, preferably entirely, by laser cutting.
- a contour of the intermediate element can be produced, for example, by cutting out a substantially rectangular sheet metal with tabs optionally arranged on the top and bottom by laser cutting, the tabs being intended to be inserted into corresponding tab openings in the upper chord or lower chord and with the upper chord or lower chord, which preferably are designed as hollow profiles to be screwed.
- a contour is thus understood in particular to be a contour in a side view, that is to say with a projection direction along the transverse direction.
- the contour of the intermediate element is formed by laser cutting before the intermediate element is bent. During the laser cutting, the intermediate element is thus usually still in the form of a flat sheet.
- the elevations and depressions of the intermediate element can be formed in a wide variety of ways, for example by welding individual metal sheets. A particularly simple manufacturability is given when the elevations and depressions of the intermediate element can be introduced at least partially into a flat metal sheet by forming, in particular bending, preferably after the metal sheet has been cut.
- the sheet metal is usually made of steel, in particular structural steel.
- the sheet metal of the intermediate element is galvanized, preferably after the sheet metal has been bent.
- the press-in nuts are pressed into the intermediate element after the sheet metal has been galvanized.
- the upper chord, lower chord and intermediate element are usually connected and screwed together.
- tabs of the intermediate element are preferably first guided into tab openings on the upper sides of the upper chord or lower chord and screws are guided from the outside through screw openings on the upper chord or lower chord and the intermediate element and screwed into press-in nuts arranged on the inside of the intermediate element adjacent to the screw openings.
- the intermediate element is thus usually formed by first cutting the sheet metal by laser cutting, with the sheet metal usually still being flat, after which the sheet metal is bent, preferably into a trapezoidal sheet metal, after which the sheet metal is galvanized, after which the nuts are screwed in the area of screw openings or Holes, which were usually also made in the sheet metal by laser cutting in the course of cutting, are pressed in, after which the intermediate element is screwed to the upper flange and lower flange.
- a corresponding carrier can thus be mounted on a construction site in a particularly simple manner.
- a production of upper chord and lower chord and the intermediate element are usually done in one production, preferably with an automated laser cutting device, with which tab openings in the upper chord and lower chord and screw openings in the intermediate element, the upper chord and the Lower chord are introduced and with which a contour of the intermediate element is cut from a flat sheet.
- FIG. 4 shows a further exemplary embodiment of a support element according to the invention
- FIG. 5 shows a flowchart of a method according to the invention for producing a support element.
- the upper chord 1 and lower chord 2 are each formed by a square tube and have tab openings 8 made by laser cutting, into which tabs 9 of the intermediate element 3 can be inserted.
- the intermediate element 3 is formed by a sheet metal bent into a trapezoidal sheet metal having elevations 4 and depressions 5 , which has tabs 9 which can be inserted into the tab openings 8 on the upper chord 1 and lower chord 2 .
- the tabs 9 each have a tab height 23 which is approximately a profile height 24 of the upper chord 1 and lower chord 2, ie a length of side surfaces 14 of the upper chord 1 and lower chord 2, which are formed here by square tubes. This ensures particularly good power transmission between the straps 9 and the upper flange 1 or
- Circular bores or screw openings 10 are arranged on the brackets 9, on which press-in nuts 7 are positioned on an inside. How As can be seen, the press-in nuts 7 are arranged on a side of the brackets 9 which is opposite a contact surface 11 of the brackets 9 .
- the contact surface 11 is understood to be that surface on which the tabs 9 rest on the inside on the side surfaces 14 of the upper chord 1 or lower chord 2 in the assembled state.
- tabs 9 are arranged both on elevations 4 and on depressions 5 of the intermediate element 3 and are thus spaced apart in the transverse direction 13 .
- a lug spacing 25 of the lugs 9 in the transverse direction 13 corresponds approximately to a side face spacing 26 of the side faces 14 of the hollow profile, so that the lugs 9 can be alternately connected to the opposite side faces 14 over their entire surface. In this way, a particularly high level of rigidity is also achieved in the transverse direction 13 .
- Upper chord 1 or lower chord 2 can thus be easily connected to the lugs 9 of the intermediate element 3, which protrude through the lug openings 8 into the interior of the upper chord 1 or lower chord 2, using screws (not shown), by inserting the screws through corresponding circular screw openings 10 or Boreholes are inserted on the side surfaces 14 of the upper chord 1 or lower chord 2 and the tabs 9, after which the screws are screwed into the press-in nuts 7 arranged on the inside.
- This achieves a planar frictional connection between the tabs 9 of the intermediate element 3 and the insides of the upper chords 1 and lower chords 2 formed by hollow profiles.
- FIG. 2 shows a method step during assembly of the support element, with tabs 9 of the intermediate element 3 being inserted into the tab openings 8 of the upper chord 1 .
- bores or circular screw openings 10 in the brackets 9 correspond to bores or circular screw openings 10 in side surfaces 14 of the upper flange 1, so that screws are inserted from the outside through these screw openings 10 and screwed into the press-in nuts 7 arranged on the inside can.
- Both the circular screw openings 10 for inserting screws and the approximately rectangular tab openings 8 for receiving the tabs 9 on the upper chord 1 and lower chord 2 are usually as well as a contour of the Intermediate element 3 and the circular screw openings 10 formed on the intermediate element 3 by laser cutting.
- FIG. 3 shows in detail a method step in which the tabs 9 of the intermediate element 3 are inserted into the tab openings 8 on an upper side 21 of the upper flange 1 .
- the tab openings 8 on the upper side 21 of the upper flange 1 protrude as far as the side surfaces 14 of the upper flange 1 and are approximately rectangular in shape, with an opening width 15 of the tab openings 8 being slightly larger than a tab width 16 or a thickness of the sheet metal of the intermediate element 3 plus a height 20 of the part of the press-in nut 7 protruding from the metal sheet.
- An opening length 17 of the strap openings 8 is also only a few millimeters larger than a corresponding strap length 18 of the strap 9, so that the strap 9 can be easily inserted into the strap opening 8, but at the same time only a slight material weakening of the upper flange 1 is caused by the introduction of the strap opening 8 and lower chord 2 is caused.
- Fig. 4 shows a carrier 22, which can be used for example for a carport, which is formed by a support element according to the invention.
- the upper chord 1 and lower chord 2 are each screwed to intermediate elements 3, which are also formed by trapezoidal sheets.
- Screw heads 6 of screws, by means of which the upper chord 1 and lower chord 2 are connected to the intermediate element 3, are arranged on the outside. A screw is so from the outside, which is why assembly is easy.
- FIG. 5 shows a flow chart of a method according to the invention for producing a support element.
- a metal sheet is provided in a first method step Z1, after which the metal sheet is cut to size by laser cutting in a second method step Z2, tabs 9 also being formed and screw openings 10 being introduced into tabs 9.
- a trapezoidal metal sheet as shown in FIGS. 1 to 4 can be formed.
- the sheet metal can be galvanized, after which in a fifth process step the press-in nuts 7 are pressed in in the region of the screw openings 10 so that screws protruding through the screw openings 10 can be screwed into the press-in nuts 7 .
- the upper chord 1 and lower chord 2 are formed, which can be designed as hollow profiles, for example.
- corresponding profile tubes are cut and preferably also provided with tab openings 8 on top sides 21 and screw openings 10 on side surfaces 14 by laser welding.
- the upper chord 1 and lower chord 2 are connected by the intermediate element 3 in an assembly process step M.
- screws are passed through corresponding screw openings 10 on the side surfaces 14 of upper chord 1 and lower chord 2 and the lugs 9 of the intermediate element 3 and screwed into the press-in nuts 7 in order to press the lugs 9 against the side surfaces 14 of upper chord 1 and lower chord 2 .
- the prefabricated elements upper chord 1, lower chord 2 and intermediate element 3 only require assembly by inserting the tabs 9 into the tab openings 8 and screwing, so that assembly can be carried out easily, reliably and with little manpower.
- a support element according to the invention can thus be produced in a simple, process-reliable and cost-effective manner and has high rigidity and strength in several spatial directions.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21211261.9A EP4187036B1 (de) | 2021-11-30 | 2021-11-30 | Tragelement sowie verfahren zur herstellung eines solchen |
| PCT/EP2022/081436 WO2023099145A1 (de) | 2021-11-30 | 2022-11-10 | Tragelement sowie verfahren zur herstellung eines solchen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4441307A1 true EP4441307A1 (de) | 2024-10-09 |
| EP4441307B1 EP4441307B1 (de) | 2025-10-29 |
| EP4441307C0 EP4441307C0 (de) | 2025-10-29 |
Family
ID=78820008
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21211261.9A Active EP4187036B1 (de) | 2021-11-30 | 2021-11-30 | Tragelement sowie verfahren zur herstellung eines solchen |
| EP22817191.4A Active EP4441307B1 (de) | 2021-11-30 | 2022-11-10 | Tragelement sowie verfahren zur herstellung eines solchen |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21211261.9A Active EP4187036B1 (de) | 2021-11-30 | 2021-11-30 | Tragelement sowie verfahren zur herstellung eines solchen |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP4187036B1 (de) |
| PL (1) | PL4187036T3 (de) |
| WO (1) | WO2023099145A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1975228A (en) * | 1931-10-23 | 1934-10-02 | Montauk Res Corp | Structural member |
| GB1011092A (en) * | 1961-09-26 | 1965-11-24 | Geoffrey Benjamin Hern | Improvements relating to structural members such as beams or girders |
| DE1994487U (de) | 1964-09-30 | 1968-09-26 | Mannesmann Ag | Vollwandtraeger. |
| US4037379A (en) * | 1976-07-08 | 1977-07-26 | Leroy Ozanne | Wall panel |
| EP1712697A3 (de) * | 2005-04-14 | 2007-12-05 | Zurecon Ag | Montageprofil |
| CA2720211C (en) * | 2008-04-11 | 2016-06-28 | Qld Steel Pty Ltd | Structural building components and method of constructing same |
-
2021
- 2021-11-30 PL PL21211261.9T patent/PL4187036T3/pl unknown
- 2021-11-30 EP EP21211261.9A patent/EP4187036B1/de active Active
-
2022
- 2022-11-10 WO PCT/EP2022/081436 patent/WO2023099145A1/de not_active Ceased
- 2022-11-10 EP EP22817191.4A patent/EP4441307B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4187036A1 (de) | 2023-05-31 |
| EP4441307B1 (de) | 2025-10-29 |
| EP4187036B1 (de) | 2023-09-20 |
| WO2023099145A1 (de) | 2023-06-08 |
| EP4441307C0 (de) | 2025-10-29 |
| PL4187036T3 (pl) | 2024-03-04 |
| EP4187036C0 (de) | 2023-09-20 |
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