EP1308574B1 - Gitterträger mit verstärktem Steg - Google Patents

Gitterträger mit verstärktem Steg Download PDF

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Publication number
EP1308574B1
EP1308574B1 EP01204153A EP01204153A EP1308574B1 EP 1308574 B1 EP1308574 B1 EP 1308574B1 EP 01204153 A EP01204153 A EP 01204153A EP 01204153 A EP01204153 A EP 01204153A EP 1308574 B1 EP1308574 B1 EP 1308574B1
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EP
European Patent Office
Prior art keywords
extension
reinforcing
reinforcing ridge
strength
short
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.)
Expired - Lifetime
Application number
EP01204153A
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English (en)
French (fr)
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EP1308574A1 (de
Inventor
Gustav M. Stromback
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT01204153T priority Critical patent/ATE298388T1/de
Priority to DE60111638T priority patent/DE60111638T2/de
Priority to EP01204153A priority patent/EP1308574B1/de
Publication of EP1308574A1 publication Critical patent/EP1308574A1/de
Application granted granted Critical
Publication of EP1308574B1 publication Critical patent/EP1308574B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • 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
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped

Definitions

  • This invention relates to an improved reinforcing ridge for structural construction materials.
  • this invention relates to a reinforcing ridge formed in a length of rigid material with first and second unjoined edges.
  • UK Patent Application GB-A-2 174 431 discloses a non-circular tubular fencing post according to the preamble of claim 1.
  • the tubular fencing post is obtained by bending a strip of metal in a tube-moulding machine.
  • the tube may be rectangular with flattened or bevelled corners.
  • the metal strip is provided with a fold.
  • the tube may also be provided with axial flanges that extend inwards from each corner.
  • the invention relates to a length of rigid sheet material, which is being formed into a rectangular shape such that it creates a rigid member for truss constructions.
  • the sheet material basically has first and second edges, a reinforcing ridge in a first side of the rectangular shape, and a reinforcing rib in a second side facing the reinforcing ridge.
  • the reinforcing ridge comprises a short extension connected to the first edge and a long extension being longer than the short extension and being connected to the second edge and being bent to form a locking slot receiving and retaining the short section.
  • the sheet material further comprises at least one nail or one screw passing through and thus connecting the third and fourth side of the rectangular shape, which both extend between the first and second side.
  • the invention also provides a corresponding method for forming such a length of rigid material, as defined in independent claim 12.
  • the invention also includes at least one strength indent in a side adjacent to the reinforcing ridge.
  • Other preferred embodiments include two reinforcing ribs; two strength indents; two pairs of strength indents; and combinations thereof.
  • the reinforcing ridge 10 of the present invention includes a length of rigid material 12.
  • Length of rigid material 12 has a short extension 14 connected to a first unjoined edge 16.
  • Length of rigid material 12 further includes long extension 18 connected to second unjoined edge 20.
  • long extension 18 is first brought into contact with short extension 14 in an extended position as illustrated by the dotted broken lines.
  • long extension 18, in a preferred embodiment is bent over short extension 14 and forms a connection locking slot 22 into and within which the short extension 14 is retained.
  • Connection locking slot 22 obviously may be made before joining edges 16 and 20.
  • connection locking slot 22 may be formed to just accept short extension 14 so that short extension 14 is forced to fit into, and is held by, locking slot 22. Obviously in either case locking slot 22 may be further compressed or crimped to ensure a tighter connection if desired.
  • Reinforcing ridge 10 simply and inexpensively joins unjoined edge 16 with unjoined edge 20 without the need of welding, screws, bolts or the like.
  • An important resulting advantage from reinforcing ridge 10 is that, as illustrated in FIGURE 1, an automatic joining device such as a pneumatic gun shooting nails 24, for example, can be utilized without collapsing rigid material 12.
  • FIGURE 1 shows nail 24 as having been shot through two sides, 23 and 25, of rigid material 12.
  • the usual intended purpose is to join rigid material 12, as illustrated in FIGURE 1, with another section of rigid material 12, not shown. Assuming the second section of rigid material 12 also includes reinforcing ridge 10, the results are the same.
  • the sides, 23 and 25, of rigid material 12 are reinforced by reinforcing ridge 10 so as to resist collapse and enable use of an automatic joining device.
  • the advantage of the invention are not limited to the use of a nail gun but also easily accommodate other automatic joining methods such as screws, for example.
  • FIGURE 1 also illustrates another preferred embodiment of the invention.
  • at least one reinforcing rib 26 is formed in a side, 27, opposite the reinforcing ridge 10.
  • FIGURE 1 shows a pair of reinforcing ribs 26 formed in the corners of the side 27 opposite the reinforcing ridge 10. The applicant has found that reinforcing ribs 26 also enhance the ability of the invention to resist collapse and thereby further facilitate the use of automatic joining devices.
  • FIGURE 1 shows a length of rigid material 12, such as sheet metal, formed into a rectangular shape with four sides, 23, 25, 27, and 29.
  • any appropriate building shape may be adapted to the invention including but not limited to triangular and round shapes for example.
  • length of rigid material 12 is formed into an extended rectangular shape.
  • the rectangular shape shown in FIGURE 2 includes reinforcing ridge 10 and a pair of reinforcing ribs 26. Additionally, however, FIGURE 2 includes at least one strength indent 28 in side 23 and/or side 25. Applicant has determined that the use of one or more strength indents 28 further prevents collapse of the rigid material when used with automatic joining devices and enables the material to resist compression and twisting moments.
  • FIGURE 3 another preferred embodiment of the present invention is illustrated.
  • the length of rigid material 12 is again formed into an extended rectangular shape.
  • the rectangular shape shown in FIGURE 3 includes reinforcing ridge 10, at least one reinforcing rib 26 and two pairs of strength indents 28.
  • FIGURE 3 shows that strength indents 28 are located in a side, 23 or 25, adjacent to reinforcing ridge 10. That is, strength indents 28 are located between reinforcing ridge 10 and reinforcing ribs 26 on the joining sides of the rectangle.
  • a major problem with prior art metal construction forms is that in either the open unjoined condition or the welded condition, they are subject to collapse and more costly to produce. Applicant's metal forms are stronger and may be joined together by automatic devices, such as pneumatic guns so that 20 to 30 percent less metal is used in building a structure. Further, the combination of at least one reinforcing rib 26 and/or at least one strength indent 28 in combination with the reinforcing ridge 10 of the present invention results in a significantly stronger metal form. This is true no matter what gauge material is used, i.e. 16, 18, and 20 gauge or the like. In the construction industry for example, the construction of a truss includes tension web and compression web members.
  • Applicant's invention results in a rigid web member which is much better able to resist compression. Therefore, Applicant's invention results in a reduction of the number of compression web members required in the construction of a truss.
  • the invention is preferably intended for use in the well-known Gus Truss System and referred to as the Gus Truss Reinforced Truss Web.
  • short extension 14 and long extension 18 have a front face 30 and a back face 32.
  • first unjoined edge 18 is brought next to second unjoined edge 20 the front face 30 of long extension 18 generally covers the front face 30 of short section 14.
  • long extension 18 is parallel to short section 30 as shown by the dotted lines.
  • long extension 18 is bent over forming a connection locking slot 22 that covers some portion of the back face 32 of short extension 14.
  • the front face 30 of long extension 18 covers approximately one-half of the back face 32 of short extension 14 when the two unjoined edges are brought together and short extension 14 is captured within connection locking slot 22.
  • the method of forming reinforcing ridge 10 in a preferred embodiment requires the positioning of first unjoined edge 16 adjacent to second unjoined edge 20 so that the front face 30 of long extension 18 meets with the front face 30 of short extension 14.
  • Applicant's invention enables rolled/machine forming of reinforcing ridge 10, so that no additional handling, crimping or the like is required to securely join the unjoined edges.
  • long extension 18 is bent over short extension 14, forming connection locking slot 22, and resulting in reinforcing ridge 10.
  • connection locking slot 22 may be formed before bringing long extension 18 next to short extension 14.
  • Other preferred methods include forming at least one reinforcing rib 26 in side 27 opposite the reinforcing ridge 10.
  • Still further preferred methods include forming strength indents 28 in the sides, 23 and 25, adjacent to reinforcing ridge 10.
  • reinforcing ridge 10 As is obvious to those of ordinary skill in the art, once reinforcing ridge 10 is created, multiple sections of rigid material 12 may be joined together using automatic joining devices as previously discussed. This alone greatly reduces the cost of structures made of man-made materials.
  • the addition of reinforcing ribs 26 and/or strength indents 28 further increase the usability and versatility and affordability of structures made from man-made materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Bridges Or Land Bridges (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Measurement Of Radiation (AREA)

Claims (18)

  1. Abschnitt eines steifen tafelförmigen Materials (12), welches derart in eine rechteckige Gestalt gebogen ist, dass es ein steifes Element für Fachwerkskonstruktionen ausbildet, wobei das tafelförmige Material
    erste und zweite Kanten (16, 20);
    einen Verstärkungssteg (10) in einer ersten Seite der rechteckigen Gestalt und
    eine Verstärkungsrippe (26) in einer zweiten dem Verstärkungssteg (10) gegenüberliegenden Seite aufweist,
    wobei der Verstärkungssteg (10)
    eine kurze mit der ersten Kante verbundene Verlängerung (14) umfasst;
    eine lange Verlängerung (18) umfasst, die länger ist als die kurze Verlängerung (14) und mit der zweiten Kante verbunden und gebogen ist, um einen Verriegelungsschlitz (22) auszubilden, der die kurze Verlängerung aufnimmt und zurückhält,
    dadurch gekennzeichnet, dass
    das tafelförmige Material ferner mindestens einen durch es hindurchgehenden Nagel oder Schraube aufweist, welche somit die dritte und vierte Seite der rechteckigen Gestalt verbindet, welche sich beide zwischen der ersten und zweiten Seite erstrecken.
  2. Erfindung nach Anspruch 1, welche ferner Vorder- und Hinterflächen auf den kurzen (14) und langen (18) Verlängerungen umfasst und bei der die Vorderfläche der langen Verlängerung gebogen ist, um im Wesentlichen die Vorderfläche der kurzen Verlängerung zu bedecken und teilweise die Hinterfläche der kurzen Verlängerung zu bedecken.
  3. Erfindung nach Anspruch 2, bei der die lange Verlängerung (18) etwa doppelt so lang ist wie der kurze Abschnitt und die lange Verlängerung (18) im Wesentlichen die gesamte Vorderfläche der kurzen Verlängerung (14) und etwa eine Hälfte der Hinterfläche der kurzen Verlängerung (14) bedeckt.
  4. Erfindung nach Anspruch 1, die zwei Verstärkungsrippen (26) in der zweiten Seite gegenüber dem Verstärkungssteg (10) umfasst.
  5. Erfindung nach Anspruch 1, die ferner mindestens eine Verstärkungskerbe (28) in der Seite benachbart dem Verstärkungssteg (10) umfasst.
  6. Erfindung nach Anspruch 5, die zwei Verstärkungskerben (28) umfasst, wobei eine Verstärkungskerbe in jeder Seite benachbart dem Verstärkungssteg (10) angeordnet ist.
  7. Erfindung nach Anspruch 5, die zwei Verstärkungskerben (28) in jeder Seite benachbart dem Verstärkungssteg (10) umfasst.
  8. Erfindung nach Anspruch 5, die ein Paar Verstärkungsrippen (26) in der zweiten Seite gegenüber dem Verstärkungssteg (10) umfasst.
  9. Erfindung nach Anspruch 5, die ein Paar Verstärkungsrippen (26) in der zweiten Seite gegenüber dem Verstärkungssteg (10) und ein Paar Verstärkungskerben (28) umfasst, wobei eine Verstärkungskerbe in jeder Seite benachbart dem Verstärkungssteg (10) angeordnet ist.
  10. Erfindung nach Anspruch 5, die ein Paar Verstärkungsrippen (26) in der zweiten Seite gegenüber dem Verstärkungssteg (10) und zwei Paar Verstärkungskerben (28) umfasst, wobei ein Paar Verstärkungskerben in jeder Seite benachbart dem Verstärkungssteg (10) angeordnet ist.
  11. Erfindung nach Anspruch 1, in der das steife Material Blech ist.
  12. Verfahren zum Ausbilden eines Abschnitts aus steifem Material wie in Anspruch 1 definiert, umfassend die Schritte:
    Formen eines steifen tafelförmigen Materials (12) mit ersten und zweiten unverbundenen Kanten (16, 20) in eine rechteckige Gestalt, um ein steifes Element für Fachwerkskonstruktionen auszubilden;
    Formen einer kurzen Verlängerung (14) an der ersten unverbundenen Kante;
    Formen eine langen Verlängerung (18), die länger ist als die kurze Verlängerung (14), an der zweiten unverbundenen Kante;
    Zusammenbringen der ersten und zweiten unverbundenen Kanten (16, 20) und Biegen der langen Verlängerung (18) um die kurze Verlängerung (14), um einen Verbindungs-Verriegelungsschlitz (22) auszubilden, so dass die ersten und zweiten unverbundenen Kanten miteinander verbunden sind und einen Verstärkungssteg (10) in der ersten Seite der rechteckigen Gestalt ausbilden;
    Formen mindestens einer Verstärkungsrippe (26) in der zweiten Seite gegenüber dem Verstärkungssteg (10) und
    gekennzeichnet durch
    Hindurchführen mindestens eines Nagels oder einer Schrauben durch die dritte und vierte Seite der rechteckigen Gestalt, welche sich beide zwischen der ersten und zweiten Seite erstrecken, so dass die dritte und vierte Seite mittels des Nagels oder der Schraube verbunden sind.
  13. Verfahren nach Anspruch 12, ferner umfassend die Schritte des Formens der kurzen und langen Verlängerung (14, 18) mit Vorder- und Hinterflächen, so dass, wenn die unverbundenen Kanten miteinander verbunden werden, die Vorderfläche der langen Verlängerung (18) im Wesentlichen die Vorderfläche der kurzen Verlängerung (14) bedeckt und die Hinterfläche der kurzen Verlängerung (14) teilweise bedeckt.
  14. Verfahren nach Anspruch 13, ferner umfassend den Schritt des Formens der langen Verlängerung (18) derart, dass er etwa doppelt so lang ist wie die kurze Verlängerung (14) und im Wesentlichen die Vorderfläche der kurzen Verlängerung (14) und etwa eine Hälfte der Hinterfläche der kurzen Verlängerung (14) bedeckt, wenn die unverbundenen Kanten zusammengebracht werden.
  15. Verfahren nach Anspruch 12, umfassend den Schritt des Formens von zwei Verstärkungsrippen (26) in der zweiten Seite gegenüber dem Verstärkungssteg (10).
  16. Verfahren nach Anspruch 12, ferner umfassend den Schritt des Formens mindestens einer Verstärkungskerbe (28) in einer Seite benachbart dem Verstärkungssteg (10).
  17. Verfahren nach Anspruch 16, umfassend den Schritt des Formens eines Paars von Verstärkungskerben (28), wobei jeweils eine in jeder Seite benachbart dem Verstärkungssteg (10) angeordnet ist.
  18. Verfahren nach Anspruch 16, umfassend den Schritt des Formens von zwei Paaren von Verstärkungskerben (28), wobei ein Paar in jeder Seite benachbart dem Verstärkungssteg (10) angeordnet ist.
EP01204153A 2001-10-31 2001-10-31 Gitterträger mit verstärktem Steg Expired - Lifetime EP1308574B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT01204153T ATE298388T1 (de) 2001-10-31 2001-10-31 Gitterträger mit verstärktem steg
DE60111638T DE60111638T2 (de) 2001-10-31 2001-10-31 Gitterträger mit verstärktem Steg
EP01204153A EP1308574B1 (de) 2001-10-31 2001-10-31 Gitterträger mit verstärktem Steg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01204153A EP1308574B1 (de) 2001-10-31 2001-10-31 Gitterträger mit verstärktem Steg

Publications (2)

Publication Number Publication Date
EP1308574A1 EP1308574A1 (de) 2003-05-07
EP1308574B1 true EP1308574B1 (de) 2005-06-22

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ID=8181163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01204153A Expired - Lifetime EP1308574B1 (de) 2001-10-31 2001-10-31 Gitterträger mit verstärktem Steg

Country Status (3)

Country Link
EP (1) EP1308574B1 (de)
AT (1) ATE298388T1 (de)
DE (1) DE60111638T2 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB568431A (en) * 1943-09-07 1945-04-04 Barnett Claude Joseph Improvements in fencing posts or the like
FR1298059A (fr) * 1961-08-07 1962-07-06 Barre creuse en tôle ou autre matière en feuille pour la construction
DE2827950A1 (de) * 1978-06-26 1980-01-10 Malkmus Doernemann Carola Hohlprofilstab, insbesondere fuer tor- oder zaunpfosten
SE462173B (sv) * 1985-04-30 1990-05-14 Gunnebo Ab Roerformig stolpe
FR2722820B1 (fr) * 1994-07-21 1996-10-04 Dirickx Sa Profile pour poteaux de cloture

Also Published As

Publication number Publication date
DE60111638T2 (de) 2006-05-18
EP1308574A1 (de) 2003-05-07
ATE298388T1 (de) 2005-07-15
DE60111638D1 (de) 2005-07-28

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