EP0420084A1 - Box-girder for a crane girder - Google Patents
Box-girder for a crane girder Download PDFInfo
- 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
Links
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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
-
- 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
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.
- 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
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
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
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
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
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
Claims (4)
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)
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)
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)
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)
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 |
-
1989
- 1989-09-25 DE DE3931909A patent/DE3931909A1/en active Granted
-
1990
- 1990-09-22 DE DE9090118239T patent/DE59002184D1/en not_active Expired - Fee Related
- 1990-09-22 EP EP90118239A patent/EP0420084B1/en not_active Expired - Lifetime
Patent Citations (6)
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)
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 |
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