EP0420084A1 - Box-girder for a crane girder - Google Patents

Box-girder for a crane girder Download PDF

Info

Publication number
EP0420084A1
EP0420084A1 EP90118239A EP90118239A EP0420084A1 EP 0420084 A1 EP0420084 A1 EP 0420084A1 EP 90118239 A EP90118239 A EP 90118239A EP 90118239 A EP90118239 A EP 90118239A EP 0420084 A1 EP0420084 A1 EP 0420084A1
Authority
EP
European Patent Office
Prior art keywords
chord
individual
box girder
plates
single sheet
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
Application number
EP90118239A
Other languages
German (de)
French (fr)
Other versions
EP0420084B1 (en
Inventor
Heinz Scheffer
Dieter Dipl.-Ing. Ungermann
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.)
Scheffer Maschinen- u Apparatebau GmbH
Original Assignee
Scheffer Maschinen- u Apparatebau GmbH
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 Scheffer Maschinen- u Apparatebau GmbH filed Critical Scheffer Maschinen- u Apparatebau GmbH
Publication of EP0420084A1 publication Critical patent/EP0420084A1/en
Application granted granted Critical
Publication of EP0420084B1 publication Critical patent/EP0420084B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
    • 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
    • E04C2003/043—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
    • E04C2003/0452—H- or I-shaped

Definitions

  • the invention relates to a box girder according to the preamble of the main claim.
  • a generic box girder is described, for example, in US Pat. No. 3,241,285 and EP 0 293 789 A1.
  • the well-known shape of the box girder achieves a high degree of stability and rigidity as well as torsion resistance, but the production of these box girders is quite complicated due to the internal weld seams.
  • the invention has for its object to provide a box girder that is easier to manufacture with equally good stability and torsional rigidity and is therefore cheaper to produce.
  • the web plates are formed from individual plates, one of which runs from the upper chord to the lower chord, while two only run from the upper chord to the continuous single plate or from the lower chord to the continuous single plate. This makes it possible for these three sheets to be welded to one another, the weld seams being on the outside and thus making it easy to "submerged arc welding".
  • the single sheet runs in a straight line diagonally between the upper chord and lower chord and the two subsequent individual sheets can therefore be welded on from the outside after the carrier has been rotated accordingly.
  • the continuous sheet metal is placed in the middle perpendicular to the plane of the upper and lower chord, and welding from the outside is also possible here.
  • a single weld seam is provided in the central area, with which the two individual sheets are fixed to the continuous single sheet.
  • the continuous single sheet has a V-shape.
  • the arrangement according to the invention ensures that the appearance of the wearer - as in the case of known carriers - is maintained, but that a more economical production is possible.
  • the arrangement according to the invention has the advantage that the weld seams are better and easier to control.
  • a box girder which has an upper flange 1, a lower flange 2 and web plates 3 and 4 connecting the two belts.
  • these web plates 3 and 4 are designed as concave angular profiles.
  • the web plates 3 and 4 consist of individual plates 5 and 6 as well as 7, 7a and 7b.
  • the single sheet 7 extends from the underside of the upper chord 1 to the inner side of the lower chord 2, diagonally and thus includes an angle ⁇ of less than 90 ° with the upper chord and the lower chord.
  • the two individual plates 6 and 5 are then attached to this diagonally running individual plate 7 welds and it can easily be seen from the drawing that the weld seams are on the outside and can therefore be easily manufactured and checked.
  • the actual carrier is placed in a so-called trough position and then problem-free "submerged arc welding" is possible.
  • the individual sheets 5 and 6 also connect at an angle ⁇ to the underside of the upper chord 1 or the inside of the lower chord 2, which is smaller than 90 ° .
  • This configuration creates an X-shaped box girder.
  • the single sheet 7a again runs diagonally between the upper chord 1 and the lower chord 2, and this sheet can also be easily welded onto the upper chord 1 and the lower chord 2 from the outside.
  • the sheet itself is approximately Z-shaped, i.e. it has a central region 8, which runs perpendicular to the plane of the upper chord 1 or the lower chord 2.
  • the ends of the individual plates 6 and 5 adjoin this straight-line central region 8 and these individual plates are again easy to weld from the outside.
  • the single sheet 7b consists of a V-shaped edged profile component which is easily welded from the outside to the underside of the upper chord 1 and the inside of the lower chord 2.
  • the two individual sheets 5 and 6 are welded in the area of the apex 9 of the single sheet 7b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)

Abstract

The invention relates to a box girder in which the web plates (3, 4) are formed from three individual plates (5, 6; 7, 7a, 7b), an individual plate (7, 7a, 7b) running through in one piece from the top chord (1) to the bottom chord (2), while the two other individual plates (5, 6) adjoin this first individual plate and in the process are welded to it by welds which can be produced from outside. The welding takes place in particular by submerged-arc welding. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Kastenträger gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a box girder according to the preamble of the main claim.

Ein gattungsbildender Kastenträger wird beispielswei­se in der US-PS 32 41 285 bzw. der EP 0 293 789 Al beschrieben. Bei beiden bekannten Einrichtungen ist es erforderlich, innerhalb des gebildeten Trägers Verstärkungsbleche vorzusehen, die an der Innenseite der konkav gestalteten Stegbleche angeschweißt sind. Durch die bekannte Form des Kastenträgers wird eine hohe Stabilität und Steifigkeit sowie Verwindungs­sicherheit erreicht, aber die Herstellung dieser Ka­stenträger ist aufgrund der innenliegenden Schweiß­nähte recht kompliziert.A generic box girder is described, for example, in US Pat. No. 3,241,285 and EP 0 293 789 A1. In both known devices, it is necessary to provide reinforcement plates within the carrier formed, which are welded to the inside of the concave web plates. The well-known shape of the box girder achieves a high degree of stability and rigidity as well as torsion resistance, but the production of these box girders is quite complicated due to the internal weld seams.

Der Erfindung liegt die Aufgabe zugrunde, einen Ka­stenträger zu schaffen, der bei gleich guter Stabi­lität und Verwindungssteifigkeit einfacher herge­stellt werden kann und damit kostengünstiger zu pro­duzieren ist.The invention has for its object to provide a box girder that is easier to manufacture with equally good stability and torsional rigidity and is therefore cheaper to produce.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst. Vorteil­hafte Ausgestaltungen sind in den Unteransprüchen erläutert.This object on which the invention is based is achieved by the teaching of the main claim. Advantageous configurations are explained in the subclaims.

Mit anderen Worten ausgedrückt wird vorgeschlagen, daß die Stegbleche aus Einzelblechen gebildet sind, von denen eines vom Obergurt zum Untergurt durch­läuft, während zwei nur vom Obergurt zum durchlau­fenden Einzelblech bzw. vom Untergurt zum durchlau­fenden Einzelblech verlaufen. Hierdurch ist es mög­lich, daß diese drei Bleche miteinander verschweißt werden können, wobei die Schweißnähte außen liegen und somit ein leichtes "Unterpulverschweißen" mög­lich gemacht wird.In other words, it is proposed that the web plates are formed from individual plates, one of which runs from the upper chord to the lower chord, while two only run from the upper chord to the continuous single plate or from the lower chord to the continuous single plate. This makes it possible for these three sheets to be welded to one another, the weld seams being on the outside and thus making it easy to "submerged arc welding".

Bei einer ersten Ausführungsform verläuft das Ein­zelblech geradlinig diagonal zwischen Obergurt und Untergurt und die beiden anschließenden Einzelbleche können also von außen angeschweißt werden, nachdem der Träger entsprechend gedreht ist.In a first embodiment, the single sheet runs in a straight line diagonally between the upper chord and lower chord and the two subsequent individual sheets can therefore be welded on from the outside after the carrier has been rotated accordingly.

Bei einer abgeänderten Ausführungsform ist das durchlaufende Einzelblech in der Mitte senkrecht zur Ebene des Ober- und Untergurtes gestellt und auch hier ist eine Verschweißung von außen möglich. Schließlich wird gemäß der Erfindung vorgeschlagen, daß nur eine einzige Schweißnaht im mittleren Be­reich vorgesehen wird, mit welchem die beiden Ein­zelbleche an dem durchlaufenden Einzelblech fest­gelegt werden. Das durchlaufende Einzelblech weist dabei eine V-Form auf.In a modified embodiment, the continuous sheet metal is placed in the middle perpendicular to the plane of the upper and lower chord, and welding from the outside is also possible here. Finally, it is proposed according to the invention that only a single weld seam is provided in the central area, with which the two individual sheets are fixed to the continuous single sheet. The continuous single sheet has a V-shape.

Durch die erfindungsgemäße Anordnung wird erreicht, daß zwar das Aussehen des Trägers - so wie bei den bekannten Trägern - beibehalten wird, daß aber eine wirtschaftlichere Herstellung möglich ist. Außerdem hat die erfindungsgemäße Anordnung den Vorteil, daß die Schweißnähte besser und leichter zu kontrollie­ren sind.The arrangement according to the invention ensures that the appearance of the wearer - as in the case of known carriers - is maintained, but that a more economical production is possible. In addition, the arrangement according to the invention has the advantage that the weld seams are better and easier to control.

Ausführungsbeispiele der Erfindung werden nachfol­gend anhand der Zeichnungen erläutert. Die Zeich­nungen zeigen dabei in

  • Fig. 1 eine erste Ausführungsform eines Ka­stenträgers, in
  • Fig. 2 eine zweite abgeänderte Ausführungs­form eines Kastenträgers und in
  • Fig. 3 eine wiederum abgeänderte Ausführungs­form.
Embodiments of the invention are explained below with reference to the drawings. The drawings show in
  • Fig. 1 shows a first embodiment of a box girder, in
  • Fig. 2 shows a second modified embodiment of a box girder and in
  • Fig. 3 shows a modified embodiment.

In den Zeichnungen ist jeweils ein Kastenträger dar­gestellt, der einen Obergurt 1, einen Untergurt 2 und die beiden Gurte verbindende Stegbleche 3 und 4 aufweist. In an sich bekannter Weise sind dabei diese Stegbleche 3 und 4 als konkav gestaltete Winkelprofile ausgebildet.In the drawings, a box girder is shown, which has an upper flange 1, a lower flange 2 and web plates 3 and 4 connecting the two belts. In a manner known per se, these web plates 3 and 4 are designed as concave angular profiles.

Bei allen drei Ausführungsbeispielen bestehen die Stegbleche 3 und 4 aus Einzelblechen 5 und 6 sowie 7, 7a und 7b.In all three exemplary embodiments, the web plates 3 and 4 consist of individual plates 5 and 6 as well as 7, 7a and 7b.

Bei der Ausführungsform gemäß Fig. 1 verläuft das Einzelblech 7 von der Unterseite des Obergurtes 1 zur inneren Seite des Untergurtes 2, und zwar diago­nal und schließt somit mit dem Obergurt und dem Untergurt jeweils einen Winkel α kleiner als 90o ein. An dieses diagonal verlaufende Einzelblech 7 sind dann die beiden Einzelbleche 6 und 5 ange­ schweißt und es ist aus der Zeichnung ohne weiteres erkennbar, daß die Schweißnähte außen liegen und so­mit leicht hergestellt und kontrolliert werden können.In the embodiment according to FIG. 1, the single sheet 7 extends from the underside of the upper chord 1 to the inner side of the lower chord 2, diagonally and thus includes an angle α of less than 90 ° with the upper chord and the lower chord. The two individual plates 6 and 5 are then attached to this diagonally running individual plate 7 welds and it can easily be seen from the drawing that the weld seams are on the outside and can therefore be easily manufactured and checked.

Zur Herstellung der Schweißnähte wird der eigent­iche Träger in eine sogenannte Wannenlage gebracht und dann ist ein problemloses "Unterpulverschweißen" möglich.To produce the weld seams, the actual carrier is placed in a so-called trough position and then problem-free "submerged arc welding" is possible.

Aus den Darstellungen ist darüberhinaus ersichtlich, daß die Einzelbleche 5 und 6 ebenfalls unter einem Winkel β an die Unterseite des Obergurtes 1 bzw. die Innenseite des Untergurtes 2 anschließen, der kleiner als 90o ist.It can also be seen from the illustrations that the individual sheets 5 and 6 also connect at an angle β to the underside of the upper chord 1 or the inside of the lower chord 2, which is smaller than 90 ° .

Durch diese Konfiguration wird ein X-artig im Quer­schnitt ausgebildeter Kastenträger geschaffen.This configuration creates an X-shaped box girder.

Bei der Ausführungsform gemäß Fig. 2 verläuft das Einzelblech 7a ebenfalls wieder diagonal zwischen Obergurt 1 und Untergurt 2 und auch dieses Blech ist am Obergurt 1 und am Untergurt 2 leicht von außen anzuschweißen. Das Blech selbst ist dabei aber etwa Z-förmig gestaltet, d.h. es weist einen mittleren Bereich 8 auf, der senkrecht zur Ebene des Ober­gurtes 1 bzw. des Untergurtes 2 verläuft. An diesen geradlinigen mittleren Bereich 8 schließen die Enden der Einzelbleche 6 und 5 an und diese Einzel­bleche sind wieder leicht von außen zu verschweißen.In the embodiment according to FIG. 2, the single sheet 7a again runs diagonally between the upper chord 1 and the lower chord 2, and this sheet can also be easily welded onto the upper chord 1 and the lower chord 2 from the outside. However, the sheet itself is approximately Z-shaped, i.e. it has a central region 8, which runs perpendicular to the plane of the upper chord 1 or the lower chord 2. The ends of the individual plates 6 and 5 adjoin this straight-line central region 8 and these individual plates are again easy to weld from the outside.

Bei der Ausführungsform gemäß Fig. 3 besteht das Einzelblech 7b aus einem V-förmig gekanteten Pro­filbauteil , das von außen leicht an die Unterseite des Obergurtes 1 und die Innenseite des Untergurtes 2 anzuschweißen ist. Die beiden Einzelbleche 5 und 6 sind im Bereich des Scheitels 9 des Einzelbleches 7b angeschweißt.In the embodiment according to FIG. 3, the single sheet 7b consists of a V-shaped edged profile component which is easily welded from the outside to the underside of the upper chord 1 and the inside of the lower chord 2. The two individual sheets 5 and 6 are welded in the area of the apex 9 of the single sheet 7b.

Claims (4)

1. Kastenträger mit einem Obergurt (1), einem Untergurt (2) und zwischen Ober- und Unter­gurt (1, 2) angeordneten seitlichen Stegble­chen (3, 4), die als konkav gestaltete Winkelprofile ausgebildet sind, dadurch ge­kennzeichnet, daß die Stegbleche (3, 4) aus drei Einzelblechen (5, 6; 7, 7a, 7b) gebil­det sind, von denen ein Einzelblech (7, 7a, 7b) vom Obergurt (1) zum Untergurt (2) ein­teilig durchläuft und mit der Unterseite des Ober- bzw. Untergurtes (1, 2) einen Winkel α kleiner als 90o einschließt, während die beiden anderen Einzelbleche (5, 6) jeweils vom Ober- bzw. Untergurt (1, 2) zum Einzel­blech (7, 7a, 7b) verlaufen und ebenfalls mit der Unterseite des Ober- bzw. Untergur­tes (1, 2) einen Winkel β kleiner als 90o einschließen.1. box girder with an upper flange (1), a lower flange (2) and between the upper and lower flange (1, 2) arranged side web plates (3, 4), which are designed as concave angular profiles, characterized in that the web plates ( 3, 4) are formed from three individual sheets (5, 6; 7, 7a, 7b), of which a single sheet (7, 7a, 7b) runs in one piece from the upper chord (1) to the lower chord (2) and with the underside of the upper - or lower flange (1, 2) includes an angle α less than 90 o , while the other two individual plates (5, 6) each extend from the upper and lower flange (1, 2) to the single plate (7, 7a, 7b) and also enclose an angle β less than 90 o with the underside of the upper and lower chord (1, 2). 2. Kastenträger nach Anspruch 1, dadurch ge­kennzeichnet, daß das Einzelblech (7) gerad­linig diagonal zwischen Ober- und Untergurt (1, 2) verläuft.2. Box girder according to claim 1, characterized in that the single sheet (7) extends in a straight line diagonally between the upper and lower flange (1, 2). 3. Kastenträger nach Anspruch 1, dadurch ge­kennzeichnet, daß das Einzelblech (7a) dia­gonal zwischen Obergurt und Untergurt (1, 2) verläuft, aber einen mittleren Bereich (8) aufweist, der senkrecht zur Ebene des Ober­gurtes (1) bzw. des Untergurtes (2) steht.3. box girder according to claim 1, characterized in that the single sheet (7a) runs diagonally between the upper chord and lower chord (1, 2), but has a central region (8) which is perpendicular to the plane of the upper chord (1) or the lower chord (2) stands. 4. Kastenträger nach Anspruch 1, dadurch ge­kennzeichnet, daß das Einzelblech (7b) V-för­ mig ausgebildet ist und die beiden jeweils am Ober- bzw. Untergurt (1, 2) anschließenden Einzelbleche (5, 6) an der Außenseite des Scheitels (9) des Einzelbleches (7b) an­schließen.4. Box girder according to claim 1, characterized in that the single sheet (7b) V-för mig and the two individual plates (5, 6) adjoining the upper and lower flange (1, 2) on the outside of the apex (9) of the individual plate (7b).
EP90118239A 1989-09-25 1990-09-22 Box-girder for a crane girder Expired - Lifetime EP0420084B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3931909 1989-09-25
DE3931909A DE3931909A1 (en) 1989-09-25 1989-09-25 CRANE CARRIER TRAINED AS A BOX CARRIER

Publications (2)

Publication Number Publication Date
EP0420084A1 true EP0420084A1 (en) 1991-04-03
EP0420084B1 EP0420084B1 (en) 1993-08-04

Family

ID=6390121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90118239A Expired - Lifetime EP0420084B1 (en) 1989-09-25 1990-09-22 Box-girder for a crane girder

Country Status (2)

Country Link
EP (1) EP0420084B1 (en)
DE (2) DE3931909A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515021A (en) * 2011-12-06 2012-06-27 王松江 Main girder of single-girder crane
WO2016124772A1 (en) * 2015-02-06 2016-08-11 Terex MHPS IP Management GmbH Crane, in particular bridge crane or gantry crane, having at least one crane girder
US10604383B2 (en) 2015-02-06 2020-03-31 Konecranes Global Corporation Crane, in particular bridge crane or gantry crane, having at least one crane girder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333561B4 (en) * 2003-07-23 2006-07-06 Carl Zeiss Industrielle Messtechnik Gmbh The coordinate measuring machine
CN103434930A (en) * 2013-09-01 2013-12-11 谢合清 Welded-railway-type crane main beam

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1989834A (en) * 1931-11-25 1935-02-05 Charles G Watson Method of reenforcing beams
FR1553017A (en) * 1967-11-17 1969-01-10
DE2205093A1 (en) * 1972-02-03 1973-08-16 Liebherr Werk Ehingen CRANE BOOM
DE2235982A1 (en) * 1972-07-21 1974-01-31 Slovacke Strojirny N P BOX CARRIERS FOR CRANE BRIDGES AND CRANEWAYS
BE886463R (en) * 1980-12-02 1981-04-01 Smits Francois COLD-FORMED METAL PROFILE
EP0194368A1 (en) * 1983-08-19 1986-09-17 Mabey Hire Company Limited Improved steel soldier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1023210B (en) * 1952-06-25 1958-01-23 Stahlbau Michael Lavis Soehne Welded beam
DE3514786C2 (en) * 1985-04-24 1987-02-19 Mannesmann AG, 4000 Düsseldorf Box girder
DE3723324A1 (en) * 1987-05-29 1988-12-15 Scheffer Masch & App CRANE CARRIER TRAINED AS A BOX CARRIER

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1989834A (en) * 1931-11-25 1935-02-05 Charles G Watson Method of reenforcing beams
FR1553017A (en) * 1967-11-17 1969-01-10
DE2205093A1 (en) * 1972-02-03 1973-08-16 Liebherr Werk Ehingen CRANE BOOM
DE2235982A1 (en) * 1972-07-21 1974-01-31 Slovacke Strojirny N P BOX CARRIERS FOR CRANE BRIDGES AND CRANEWAYS
BE886463R (en) * 1980-12-02 1981-04-01 Smits Francois COLD-FORMED METAL PROFILE
EP0194368A1 (en) * 1983-08-19 1986-09-17 Mabey Hire Company Limited Improved steel soldier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515021A (en) * 2011-12-06 2012-06-27 王松江 Main girder of single-girder crane
WO2016124772A1 (en) * 2015-02-06 2016-08-11 Terex MHPS IP Management GmbH Crane, in particular bridge crane or gantry crane, having at least one crane girder
US10407281B2 (en) 2015-02-06 2019-09-10 Konecranes Global Corporation Crane, in particular bridge crane or gantry crane, having at least one crane girder
US10604383B2 (en) 2015-02-06 2020-03-31 Konecranes Global Corporation Crane, in particular bridge crane or gantry crane, having at least one crane girder

Also Published As

Publication number Publication date
EP0420084B1 (en) 1993-08-04
DE3931909C2 (en) 1993-06-24
DE59002184D1 (en) 1993-09-09
DE3931909A1 (en) 1991-04-04

Similar Documents

Publication Publication Date Title
DE2523237C2 (en) Steel girders
EP0420084B1 (en) Box-girder for a crane girder
EP1040978B1 (en) Supporting structure with at least two crossing longitudinal sections, especially for underframes and superstructures of rail vehicles
EP1232936A1 (en) A connecting structure for a motor vehicle body
DE3514786A1 (en) Box girder
DE3233048A1 (en) Welded joint for automobile-body sheets
DE4032676C2 (en) Seat unit of a motor vehicle, which is held on the floor assembly by screws
EP0363349A2 (en) Frog with a cast point of hard manganese steel
DE19526338C2 (en) Sheet metal construction in honeycomb construction
EP0153463A2 (en) Panel element of hollow sections
DE2853658C2 (en) Crane bridge girder
DE2016708C3 (en) Body profile, in particular for the body of motor vehicles
DE7404530U (en) Welding device
DE2950751A1 (en) ANGLE BRACKET IN WELDED BOX DESIGN
DE4412005A1 (en) Manufacturing machine parts
DE19810117A1 (en) Flat knitting machine
DE2448689C3 (en) Hinge arm made of sheet metal
DE1459677A1 (en) Deck slab
DE3332604C2 (en) Device for connecting a lead wire by means of a clamping screw or a clamping spring
DE2501781A1 (en) Structure for maximum load bearing - consists of modules chosen from five standard constructions
DE60302974T2 (en) Method of making arrangements of sandwich structures
DE3234355C1 (en) Supporting device for a screen band
DE2804378A1 (en) Connector between vehicle axle and chassis - has telescoping sectioned portions to absorb tensile or bending stresses
DE1956293C3 (en) Crane runway girders
DE19644953C1 (en) Anchoring device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910118

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR NL

17Q First examination report despatched

Effective date: 19921204

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930804

Ref country code: BE

Effective date: 19930804

REF Corresponds to:

Ref document number: 59002184

Country of ref document: DE

Date of ref document: 19930909

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19970930

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19990401

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010915

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030401