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EP1190148B1 - Trägerstruktur und verfahren zur herstellung - Google Patents

Trägerstruktur und verfahren zur herstellung Download PDF

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Publication number
EP1190148B1
EP1190148B1 EP00943492A EP00943492A EP1190148B1 EP 1190148 B1 EP1190148 B1 EP 1190148B1 EP 00943492 A EP00943492 A EP 00943492A EP 00943492 A EP00943492 A EP 00943492A EP 1190148 B1 EP1190148 B1 EP 1190148B1
Authority
EP
European Patent Office
Prior art keywords
metal
web
girder structure
flange
structure according
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
EP00943492A
Other languages
English (en)
French (fr)
Other versions
EP1190148A1 (de
Inventor
Richard Kergen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ArcelorMittal Liege Upstream SA
Original Assignee
Cockerill Sambre SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cockerill Sambre SA filed Critical Cockerill Sambre SA
Priority to EP00943492A priority Critical patent/EP1190148B1/de
Publication of EP1190148A1 publication Critical patent/EP1190148A1/de
Application granted granted Critical
Publication of EP1190148B1 publication Critical patent/EP1190148B1/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
    • 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
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • 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
    • E04C2003/0413—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 being built up from several parts
    • 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
    • E04C2003/0434—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 open cross-section free of enclosed cavities
    • 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
    • E04C2003/0452—H- or I-shaped
    • 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
    • E04C2003/0473—U- or C-shaped

Definitions

  • the present invention relates to a composite beam structure.
  • the present invention also relates to a method of producing such a beam structure.
  • the classic beam in "I" which includes two soles connected by a core, is a good compromise, because it is the material located at the level of soles which will determine the moment of inertia.
  • stresses and deformations vary linearly in the section: they are zero at neutral fiber and increase to become maximum at the place furthest from the neutral fiber.
  • the soul that secures the two soles is therefore the seat of bending stresses linked to the local moment, shear stresses linked to shear force local, and compression stresses determined by the local loading.
  • Document DE-A-22 21 330 therefore proposes a beam of composite flexion, the soles and core of which are respectively made of very high strength steel and ordinary steel.
  • the apparent yield strength is exceeded in the area of the soul lying near the sole, but this is precisely the junction with very high strength steel, keeping a behavior elastic, which prevents the flow of the soul.
  • document FR-A-1312 864 describes an "I" beam made up of three parts welded and in particular having a first sole in low carbon steel and a second sole in high carbon steel. This last sole is intended to be used as a rail.
  • Document US-A-3 999 354 describes a beam aluminum of rectangular hollow section, consisting of two extruded profiled soles assembled with two cores panel-shaped. The assembly is obtained at each junction by local pinching: it is folded using a tool an arm forming part of the sole in a groove of the same sole, the corresponding core panel being stuck between these two elements.
  • This type of assembly, type mechanical, is not very compatible with THLE steels and UHLE, which are not very formable.
  • Patent application DE-A-34 25 495 describes an "I" beam with a core reinforced by regular moldings. This reinforcement is necessary in beam applications with webs with a certain height.
  • the present invention aims to provide a beam structure which reduces the weight of while allowing the use of steel sheets with high mechanical characteristics.
  • the present invention also aims to allow the realization, and this in a productive way, of beam structures with variable cross-section.
  • the present invention also relates to the method of producing a beam structure such as described above, and this particularly productive.
  • the first metal is a steel with a yield strength greater than 400 MPa or an aluminum alloy with a yield strength greater than 200 MPa.
  • Souls can have a ripple, and in particular a succession of punctures or openings in the longitudinal direction of the beam structure.
  • the beam structure comprises at least two soles essentially parallel to each other and interconnected by at least two souls also essentially parallel to each other, where the soles and souls are made of metallic materials distinct by their nature, their mechanical properties or their thickness.
  • the beam structure has a section which is not constant and which varies according to the height and / or the width of said structure.
  • the invention also relates to a method of assembling components of a beam structure, as described above, characterized in that the assembly is carried out of at least two components to form a section of joining by a fusion joining process such as spot welding.
  • the assembly of at least minus two components to form a junction section is achieved by an assembly process by rivets, by simple crimping, by clinching.
  • the assembly of at least two constituent elements in view to form a junction section is achieved by a assembly process by hem crimping.
  • the radius ratio hem to the sum of the thicknesses of the different elements components along the junction section is included, preferably between 2 and 10.
  • the ratio of the difference between the hem radius and the thickness of the outermost component with the thickness of the innermost component is, preferably greater than 2 and the thickness ratio of two elements is preferably less than 4.
  • the assembly operations mechanical are made using a press.
  • the assembly by crimping per hem is produced in the same press cycle.
  • Figure 1 shows a sectional view of a typical section of a beam structure according to this invention.
  • Figure 2 shows an example of execution of a particular soul used for a structure of beam according to the present invention, and in particular such as shown in Figure 1.
  • Figure 3 shows another example execution of a soul which can be used for a beam structure, and in particular such that shown in Figure 1.
  • Figure 4 shows the assembly carried out by hem of different pieces in order to achieve a beam structure as shown in figure 1.
  • Figure 5 shows all of the tools intended to carry out an assembly by hem to the press as shown in Figure 4.
  • Figure 6 shows a sectional view of a beam element with variable section along line A-A 'and along line B-B '.
  • Figure 7 shows a block diagram of a tool operating by press in order to allow the realization of a beam structure according to the present invention, and in particular as shown in the figure 1.
  • Figures 8 illustrate the principle of blocking of the relative sliding of the core with respect to the sole in hem assembly, by interlocking using a cut of alternating slots.
  • Figures 8a and 8b present the two sheets just before production hem.
  • the proposed solution is based on the use at least two metallic materials, in sheet or in sheet, distinct by their nature, their properties mechanical or their thickness in order to achieve a more elaborate structure. More specifically, this invention proposes to use steels with high mechanical properties in combination with steels more ductile to achieve a beam structure of optimized weight and possibly presenting a evolutionary section according to certain embodiments. he it is therefore a composite structure made from at least two distinct metallic materials by the nature, mechanical properties or by thickness.
  • the stress level maximum is reached at the soles.
  • the material chosen to make these soles must therefore have a yield point as high as possible. It is essentially the section of the sole that determines the moment of inertia: we must therefore be able to adjust width and thickness to optimize strength and size.
  • the soles can optionally be made in two metallic materials distinct at least in nature, mechanical properties or thickness, for example for optimize the weight of the beam according to stresses or space constraints.
  • the core that connects the soles is subjected to the bending but above all is the seat of constraints of shear and can be locally stressed in compression. To optimize the weight, you must be able to use a minimum metal thickness. This can be achieved by giving souls a geometry improving their buckling resistance. This implies that the metal used for souls must have ductility better than the metal used for the soles, i.e. a yield strength / breaking load ratio lower, and certainly less than 0.9.
  • HLE limit very high elasticity
  • the limit elasticity is chosen as high as possible.
  • steel it will be located in a range of 400 to 1500 MPa, for aluminum between 200 and 800 MPa: metal can then have a very shaping capacity limited.
  • Ductility is well reflected by the ratio yield strength / breaking load. So, for alloys with good formability, this ratio is significantly less than 1, of the order of 0.5, and for alloys with mechanical properties high, this ratio will tend towards 1, then being associated with a very limited formatting capacity.
  • the level of yield strength associated with this low placing capacity in shape depends on the alloy family considered. So, for steels this limit can be located from 600 to 800 MPa according to the shade considered.
  • the soles and the souls are joined to the level of the junction zones 4 by a welding process or mechanical assembly.
  • welding processes we may consider for example spot welding, the seam welding, laser welding, welding by diffusion, soldering.
  • mechanical assembly processes like assembly by rivets, assembly without rivet by local deformation known as clinching, the crimping.
  • a particularly interesting variant of assembly method is hem assembly.
  • This guy assembly applied for example for boxes of canned can be made by press or by tools rotary type knobs.
  • a typical example of this type assembly applied to the present invention is shown in Figure 4.
  • a hem 7 is made at of each junction zone sole 1 / core 2.
  • the advantage of This type of assembly is twofold: by its geometry, it helps strengthen the structure and it can be achieved using very productive processes like a press stamping or profiling machine.
  • this type of hem assembly can also be performed using knurled tools according to methods known from elsewhere.
  • the system can then be integrated into a line profiling.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Bridges Or Land Bridges (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Forging (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Micromachines (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Claims (19)

  1. Profil mit mindestens einem Gurt (1, 1' aus mindestens einem ersten Metall mit hohen mechanischen Eigenschaften, d.h. mit hoher Festigkeit und einem Verhältnis der Streckgrenze zur Bruchbelastung nahe 1, und mit mindestens einem Steg (2, 2') aus mindestens einem zweiten Metall mit einer Streckgrenze, die deutlich unter der des ersten Metalls liegt, wobei dieser Steg so mit besagtem Gurt verbunden ist, dass er im wesentlichen senkrecht zu ihm steht, und der Gurt und der Steg aus Band oder Blech bestehen, dadurch gekennzeichnet, dass:
    das zweite Metall ein Verhältnis Streckgrenze/Bruchbelastung aufweist, das deutlich unter dem Wert dieses Verhältnisses beim ersten Metall und unter 0,9 liegt;
    der Steg geometrische Eigenschaften aufweist, die seine Knickfestigkeit im Vergleich zu einem ebenen, vollwandigen Steg der gleichen Dicke und Höhe erhöhen, und eine Verringerung seiner Dicke und folglich des Gesamtgewichts des Profils ermöglichen.
  2. Profil nach Anspruch 1, dadurch gekennzeichnet, dass das erste Metall ein Stahl mit einer Streckgrenze über 400 MPa oder eine Aluminiumlegierung mit einer Streckgrenze über 200 MPa ist.
  3. Profil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Steg (2, 2') in Längsrichtung des besagten Profils eine Wellenbewegung (3) aufweist.
  4. Profil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Steg (2, 2') eine Folge von Einschnitten oder Öffnungen (5) in Längsrichtung des besagten Profils aufweist.
  5. Profil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es mindestens zwei im wesentlich zueinander parallele Gurte (1, 1') umfasst.
  6. Profil nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass es mindestens zwei im wesentlich zueinander parallele Gurte (1, 1 und mindestens zwei im wesentlich zueinander parallele Stege (2, 2') umfasst.
  7. Profil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Gurte (1, 1') und die Stege (2, 2') aus metallischen Werkstoffen hergestellt sind, die sich im Typ, ihren mechanischen Eigenschaften oder ihrer Dicke unterscheiden.
  8. Profil nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die beiden Gurte (1, 1') aus dem gleichen Metall bestehen.
  9. Profil nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die beiden Gurte (1, 1') aus unterschiedlichen Metallen bestehen, wobei ein erster Gurt aus einem ersten Metall besteht, das ein anderes Verhältnis Streckgrenze/Bruchbelastung aufweist, als das Metall, aus dem der andere Gurt besteht.
  10. Profil nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass beide Gurte (1, 1') unterschiedliche Dicken aufweisen.
  11. Profil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es einen nicht konstanten Querschnitt aufweist, der sich in der Höhe und/oder der Breite dieses Profils ändert.
  12. Fügeverfahren für ein Profil, bestehend aus mindestens einem Gurt (1, 1') und mindestens einem Steg (2, 2'), nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass der besagte Gurt (1, 1 und der besagte Steg (2, 2') so verbunden werden, dass sie durch ein Schmelzfügeverfahren, vorzugsweise Punktschweißen, Laserschweißen, Nahtschweißen, Diffusionsschweißen oder Hartlöten, so zusammengefügt werden, dass sie einen Verbindungsbereich (4) bilden.
  13. Fügeverfahren für ein Profil, bestehend aus mindestens einem Gurt (1, 1') und mindestens einem Steg (2, 2'), nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass der besagte Gurt (1, 1') und der besagte Steg (2, 2') durch ein mechanisches Fügeverfahren, vorzugsweise durch eine Nietverbindung, einfache Falzverbindung oder Clinchverbindung so zusammengefügt werden, dass sie einen Verbindungsbereich (4) bilden.
  14. Fügeverfahren für ein Profil, bestehend aus mindestens einem Gurt (1, 1') und mindestens einem Steg (2, 2'), nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass der besagte Gurt (1, 1') und der besagte Steg (2, 2') mittels eines Fügeverfahrens durch Falzen mit Umschlagsfalz (7) so zusammengefügt werden, dass sie einen Verbindungsbereich (4) bilden.
  15. Fügeverfahren nach Anspruch 14, dadurch gekennzeichnet, dass das Verhältnis des Radius des Umschlagsfalzes (7) zur Summe der einzelnen Materialstärken der entlang des Verbindungsbereichs (4) angeordneten Teile zwischen 2 und 10 beträgt.
  16. Fügeverfahren nach Anspruch 14, dadurch gekennzeichnet, dass das Verhältnis der Differenz zwischen dem Radius des Umschlagsfalzes (7) und der Stärke des äußersten Bauelements zur Metallstärke des innersten Bauelements mehr als 2 beträgt und dass das Verhältnis der Stärke der beiden Elemente zueinander weniger als 4 beträgt.
  17. Fügeverfahren nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass das Fügeverfahren mit einer Presse durchgeführt wird.
  18. Fügeverfahren für ein Profil nach Anspruch 14, dadurch gekennzeichnet, dass das Fügen durch Umschlagsfalz (7) in einem einzigen Arbeitstakt der Presse durchgeführt wird.
  19. Fügeverfahren nach einem der Ansprüche 14 bis 18, dadurch gekennzeichnet, dass nach dem Falzen der Umschlagsfalz durch Kleben, Einbuchten oder Verschränken gegen das Verrutschen eines Steges in Bezug auf einen Gurt entlang des Verbindungsbereichs gesichert wird.
EP00943492A 1999-07-05 2000-07-05 Trägerstruktur und verfahren zur herstellung Expired - Lifetime EP1190148B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00943492A EP1190148B1 (de) 1999-07-05 2000-07-05 Trägerstruktur und verfahren zur herstellung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP99202192 1999-07-05
EP99202192A EP1067250A1 (de) 1999-07-05 1999-07-05 Trägerstruktur und Verfahren zur Herstellung
EP00943492A EP1190148B1 (de) 1999-07-05 2000-07-05 Trägerstruktur und verfahren zur herstellung
PCT/BE2000/000079 WO2001002663A1 (fr) 1999-07-05 2000-07-05 Structure de poutre et procede de realisation de telles structures

Publications (2)

Publication Number Publication Date
EP1190148A1 EP1190148A1 (de) 2002-03-27
EP1190148B1 true EP1190148B1 (de) 2003-10-01

Family

ID=8240415

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99202192A Withdrawn EP1067250A1 (de) 1999-07-05 1999-07-05 Trägerstruktur und Verfahren zur Herstellung
EP00943492A Expired - Lifetime EP1190148B1 (de) 1999-07-05 2000-07-05 Trägerstruktur und verfahren zur herstellung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99202192A Withdrawn EP1067250A1 (de) 1999-07-05 1999-07-05 Trägerstruktur und Verfahren zur Herstellung

Country Status (7)

Country Link
US (1) US6550211B2 (de)
EP (2) EP1067250A1 (de)
AT (1) ATE251262T1 (de)
AU (1) AU770680B2 (de)
CA (1) CA2378637A1 (de)
DE (1) DE60005668T2 (de)
WO (1) WO2001002663A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2368041B (en) * 2000-10-17 2004-04-21 Intelligent Engineering Sandwich plate stepped risers
US6976343B2 (en) * 2003-04-24 2005-12-20 Mcgushion Kevin D Compressive flange sinusoidal structural member
US7930866B2 (en) * 2004-08-02 2011-04-26 Tac Technologies, Llc Engineered structural members and methods for constructing same
US7721496B2 (en) * 2004-08-02 2010-05-25 Tac Technologies, Llc Composite decking material and methods associated with the same
US8266856B2 (en) 2004-08-02 2012-09-18 Tac Technologies, Llc Reinforced structural member and frame structures
US8065848B2 (en) 2007-09-18 2011-11-29 Tac Technologies, Llc Structural member
EP1778929A4 (de) * 2004-08-02 2008-12-31 Tac Technologies Llc Technische tragelemente und herstellungsverfahren dafür
CN100363575C (zh) * 2005-05-27 2008-01-23 浙江大学 设置连杆的开口薄壁型钢
WO2015054417A1 (en) * 2013-10-09 2015-04-16 Brigham Young University Structural members and related methods and systems
CN108442510A (zh) * 2018-03-13 2018-08-24 盐城工业职业技术学院 一种钢结构抗震框架结构和建筑

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FR1234371A (fr) * 1959-05-13 1960-10-17 Poutre alvéolaire ainsi que procédés et dispositifs pour l'exécution de poutres soudées, en particulier de poutres alvéolaires
FR1312864A (fr) * 1962-01-29 1962-12-21 Cleveland Crane Eng Poutre-rail pour système de manutention et procédé de fabrication de cette poutrerail
DE2221330A1 (de) * 1972-04-29 1973-11-15 Schultz Hans Georg Dr Ing Gewichtsverminderung gebauter traeger durch unterdruecktes oder gerade erreichtes stegfliessen
US3960637A (en) * 1973-07-23 1976-06-01 Ostrow Paul F Composite structural member
US3999354A (en) * 1975-07-31 1976-12-28 Alcan Aluminum Corporation Structural member and box beam employing same
DE3425495A1 (de) * 1984-07-11 1986-01-23 Franzen & Spelten Consulting GmbH, 4054 Nettetal Stahlprofiltraeger
GB2187409B (en) * 1986-03-05 1989-11-15 British Steel Corp Channel section members
US4734146A (en) * 1986-03-31 1988-03-29 Rockwell International Corporation Method of producing a composite sine wave beam
US5483782A (en) * 1994-01-03 1996-01-16 Hall; Donald M. Load bearing beam having corrosion resistant cladding
US5600932A (en) * 1996-01-05 1997-02-11 Paik; Young J. Beam with enhanced bearing load strength and method of manufacture
US6374570B1 (en) * 2000-08-25 2002-04-23 Lockheed Martin Corporation Apparatus and method for joining dissimilar materials to form a structural support member

Also Published As

Publication number Publication date
DE60005668D1 (de) 2003-11-06
US6550211B2 (en) 2003-04-22
US20020053178A1 (en) 2002-05-09
WO2001002663A1 (fr) 2001-01-11
EP1067250A1 (de) 2001-01-10
ATE251262T1 (de) 2003-10-15
EP1190148A1 (de) 2002-03-27
CA2378637A1 (en) 2001-01-11
AU5798500A (en) 2001-01-22
DE60005668T2 (de) 2004-08-12
AU770680B2 (en) 2004-02-26

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