EP1961887B1 - Procédé de fabrication d'une poutre structurelle avec ouvertures - Google Patents

Procédé de fabrication d'une poutre structurelle avec ouvertures Download PDF

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Publication number
EP1961887B1
EP1961887B1 EP07102970A EP07102970A EP1961887B1 EP 1961887 B1 EP1961887 B1 EP 1961887B1 EP 07102970 A EP07102970 A EP 07102970A EP 07102970 A EP07102970 A EP 07102970A EP 1961887 B1 EP1961887 B1 EP 1961887B1
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EP
European Patent Office
Prior art keywords
beams
peaks
web
flat
undulated
Prior art date
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EP07102970A
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German (de)
English (en)
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EP1961887A1 (fr
Inventor
Claude Vasconi
Louis-Guy Cajot
Olivier Vassart
Alain Wallerich
Bruno Theret
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ArcelorMittal Commercial Sections SA
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ArcelorMittal Commercial Sections SA
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Publication date
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Priority to ES07102970T priority Critical patent/ES2370267T3/es
Priority to EP07102970A priority patent/EP1961887B1/fr
Priority to AT07102970T priority patent/ATE519901T1/de
Priority to PL07102970T priority patent/PL1961887T3/pl
Publication of EP1961887A1 publication Critical patent/EP1961887A1/fr
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Publication of EP1961887B1 publication Critical patent/EP1961887B1/fr
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    • 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
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/083—Honeycomb girders; Girders with apertured solid web
    • E04C3/086—Honeycomb girders; Girders with apertured solid web of the castellated type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
    • 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

Definitions

  • the present invention generally relates to structural beams of the type having a web between two flanges, in which the web is not continuous but has apertures therein, and to a method of manufacturing such beam.
  • Structural beams with openings located in their web are commonly used in construction works (buildings, multi-level car parks, etc.).
  • castellated beams are typically made from universal beams, e.g. hot rolled I- or H-sections that are cut along their web according to a specific pattern. The resulting two T-beams are then re-assembled by welding. This technique is conventionally used to produce beams with circular, hexagonal or octagonal opening as well as cambered beams with such openings.
  • a well-known method for the manufacturing of a castellated beam is for example disclosed in GB 882 175 .
  • An H-section beam is separated into two T-beams by cutting into its web along a predetermined cutting line, e.g. by means of a cutting torch.
  • the cutting line describes a substantially periodical undulation with peaks and bases, these peaks and bases being flat and parallel to one another and to the flanges.
  • One T-beam is then longitudinally displaced so that the peaks of the upper and lower T-beams coincide and the abutting peaks are finally welded together.
  • a method for manufacturing castellated beam with circular openings is described in EP 0 324 206 .
  • a first continuous cut is made along the web of a universal beam and a second continuous cut is made along the web on a path different from that of the first cut.
  • the cuts are such as to define rectilinear sections lying on alternate sides of the centreline of the web and at least partly curvilinear sections joining the closest ends of the rectilinear sections.
  • the cut halves (two T-beams) of the beam are separated and are then welded together in regions formed by juxtaposition of rectilinear sections of the two halves.
  • FR 835808-A discloses a beam according to the preamble of claim 1.
  • a recurrent problem in the above-described methods is the difficulty of properly aligning the opposite flat peaks (rectilinear segments) of the web edges in order to proceed with the welding operation. Indeed, any shift or misalignment between two flat peaks is easily perceptible to the eye in the case of circular or hexagonal openings due to the regularity of the shapes. This problem of alignment of coinciding flat peaks is even more important in the case of pre-cambered beams.
  • a method for manufacturing a beam with openings comprising the steps of:
  • the undulated web edge lines of said T-beams are designed in such a way as to comprise a curvilinear line portion each side of each flat peak, this curvilinear line portion having a slope progressively approaching the slope of the flat peak.
  • curvilinear portions have the characteristics defined by the characterising portion of claim 1.
  • the derivative of the curve described by the curvilinear line portion at a point is the slope of the line tangent to the curve at that point, expressing the rate of change of the curvilinear line portion.
  • the slope of the tangent to the curve varies progressively, in direction of the peak, until the tangent is aligned with the direction of the flat peak.
  • the undulations of the web edge line is designed such that its curvature varies until it becomes tangent to the flat peak line.
  • the practical consequence of this design is that there is no discontinuity of the free edge profile in the vicinity of the flat peaks that will be abutted against similar, coinciding peaks of the other T-beam, contrary to the well known beams with circular, hexagonal or octagonal openings.
  • the tangency and varying curvature of the web edge about the peaks makes it difficult to notice the exact beginning and ending locations of the flat peaks, so that slight shifting and misalignments will be less perceptible to the eye and thus facilitates the alignment task during beam production.
  • the welding operator may also weld together opposite web edge lines in the region of the curvilinear lines portions to mask any misalignment and/or reinforce the welding at the peaks. It thus appears that the use of such undulated design greatly simplifies the assembly of the two T-beams and thus the manufacturing of the castellated beam.
  • the two T-beams are cut out from a single beam having a web extending between two flanges, preferably a hot-rolled I- or H-section beam.
  • the cutting may be done according to a continuous cutting line along the web of such beam. In this case, the cutting line will thus define the shape of the undulated line of the free web edges of the resulting two T-beams.
  • the continuous cutting line further defines flat end sections extending from each end of said undulated line to the respective beam extremity, one of the flat end sections being closer to one flange while the other is closer to the opposite flange.
  • the two T-beams upon cutting along a continuous cutting line, may simply be separated and shifted axially to bring the opposite peaks into abutment.
  • the two T-beams to be assembled can be cut out from two different beams. As long as the undulating shape of their web edges is designed so that they may be joined by their peaks, a variety of designs/patterns is possible.
  • the T-beams are cambered before welding in step c).
  • a difficulty in the manufacture of pre-cambered beams is that the length of coinciding peaks is modified due to bending.
  • due to the particular design of the undulating lines at the peak sides providing tangency of the curvilinear line portions there is no discontinuity between the flat peaks and the edge line about the peaks.
  • the slight difference in peak length is thus visually imperceptible due to the design of the openings about the peaks; again thereby avoiding long adjustment before welding and need for additional matter to restore the shape of the edge lines.
  • tangency and varying curvature of the web edge about the peaks make it possible for the operator to easily extend the welding to the region of the curvilinear line portions in order to weld together the opposite, proximate web edges.
  • a beam with openings having a web and two flanges and consisting of two assembled T-beams each having a flange and a web.
  • the web of each of the T-beams has a respective edge line describing an undulated line with peaks and bases, the peaks being remote from the respective flange and the lows being close to the respective flange.
  • the peaks are essentially flat and parallel to a common axis and the T-beams are joined by their peaks that are welded together.
  • the undulated web edge lines of the T-beams are designed in such a way as to comprise a curvilinear line portion each side of each flat peak, this curvilinear line portion having a slope progressively approaching the slope of the flat peak.
  • the openings in the beam thus close longitudinally by regions where upper and lower web edges meet at the adjoined peaks (that form the uprights of the beam) in a tangential manner.
  • Such beam results from the construction of two T-beams having specific web edge design that permits an easier assembly. This design proves even more interesting in the case of pre-cambered beams, as already explained hereinabove.
  • the shape of the meeting web edge lines can be characterised by the axial extent (or approaching distance) of the curvilinear line portion, as measured by projection on a parallel to the beam axis.
  • the approaching distance may range up to 200 mm, and is at least 150 mm as defined by claim 1.
  • Another distinctive parameter is the distance between opposite (upper and lower) web edge lines over the approaching distance. This distance does not exceed 20 mm over the approaching distance, more preferably not more than 15 mm.
  • both T-beams are cut out from a single H or I section beam so that peaks and bases are flat, parallel and of same length.
  • the two T-beams can be prepared from two different beams, which allows more flexibility in design and shapes, but is economically less interesting.
  • the proportion of continuous web (i.e. extending continuously between lower and upper flange) in one unitary pattern element (measured e.g. between the middle of two consecutive peaks) is in the range of 5 to 20%, preferably 6 to 13%. These values are particularly suited for flooring applications, composite constructions and the like.
  • studs may be provided on a flange.
  • FIG.1 illustrates a castellated beam 10 according to a preferred embodiment of the present invention, having a web 12 extending between two parallel flanges, the lower flange being indicated 14 and the upper 16. Located in the web 12 are a number of openings 18 (7 openings in this embodiment).
  • the beam 10 is formed from two T-beams, designated 20 1 and 20 2 , that are joined by welding.
  • the web of each T-beam 20 1 , 20 2 has a respective free edge describing an undulated line 22 with peaks 24 and bases 26.
  • the peaks 24 are remote from the respective flange and the bases 26 are close to the respective flange.
  • peaks 24 and bases 26 are essentially flat and extend parallel to the central axis 25 of the beam 10.
  • the welding of the two T-beams is carried out at their peaks 24.
  • On each longitudinal side of the beam 10 is an end section with continuous web.
  • the undulating line 22 of the web edges is designed in such a way as to comprise a curvilinear line portion each side of each flat peak 24, the curvilinear line portion having a varying slope progressively approaching the slope of the flat peak 24.
  • the intermediate edge section connecting a base 26 to a peak 24 in each T-beam 20 1 , resp. 20 2 has a shape such that in the vicinity of the peak 24, its slope progressively varies to become tangent to the flat peak 24.
  • the openings 18 have a specific shape where the junction point between the upper and lower web edges at the peaks 24 is not readily distinguishable to the eye, thus allowing some flexibility during the joining/welding operation, namely by reducing the required efforts for alignment.
  • Fig.2 The shape of the openings 18 in the embodiment of Fig.1 can be more precisely seen in Fig.2 , where the longitudinal extent of each portion or section of the undulating line 22 is indicated below the beam 10.
  • Peaks 24 and bases 26, respectively indicated p and b are flat sections of same length that are parallel to the beam centre line 25. Intermediate sections connecting between peaks and bases are indicated s.
  • the end portion of an intermediate section s close to a peak that forms the curvilinear line portion becoming tangent to the flat peak 24 is indicated w.
  • the curvilinear line portion w is thus a terminal part of the intermediate section s.
  • the intermediate section s could be given any shape, provided that in the vicinity of each peak 24 it describes a curvilinear line portion w that becomes tangent to the peak. If the two T-beams were not manufactured from a single beam according to the below method (which implies that the shape of one peak in one T-beam defines the shape of one base in the other T-beam), the bases would not need be flat and of same length as the peaks.
  • FIG.3 a A starting H-section beam 10a is illustrated in Fig.3 a) .
  • This starting beam 10a is cut along its web 12a following a continuous cutting line 22a by means of e.g. a laser or plasma cutting device, cutting torch or chip removing device, thus creating the two T-beams 20 1 and 20 2 .
  • the respective free web edge profile 22 of the two T-beams 20 1 and 20 2 thus results from the shape of the continuous cutting line 22a.
  • the two T-beams 20 1 and 20 2 are then separated ( Fig.3 b) and the lower T-beam 20 1 is rotated over 180° ( Fig.3 c) .
  • the two T-beams 20 1 and 20 2 are positioned so as to bring coinciding peaks 24 of their web edges into contact.
  • the shape of the cutting line 22a, and thus of the edge lines 22 is such that upon rotation, the peaks 24 of the lower and upper T-beams coincide. It thus suffices so bring the T-beams 20 1 and 20 2 into abutment and weld them together at the coinciding, adjoining peaks 24.
  • the cutting line 22a ends at both extremities with a flat end section.
  • the flat end section 30 is closer to the lower flange 14 while on the opposite beam extremity the flat end section 30a is closer to the upper flange 16.
  • the flat end sections 30 and 30a are advantageously of same length. The reason for this design is that a continuous web is automatically obtained at one beam 10 extremity upon rotation of the lower T-beam 20 1 , as can be seen in Fig.3 d) .
  • edge line 22 at the extreme openings 18, upper and lower web edge lines 22 meet towards the end sections e in the same way as at the peaks 24, forming these portions with tangential lines.
  • facing curvilinear line portions on the sides of the peaks are advantageously welded together over a given length (not shown in the drawings).
  • the web is open at the left beam extremity.
  • This opening in the web 12 is preferably closed using welding and appropriate materials (as illustrated by the grey area in Fig.3 f) so as to form a continuous web end portion.
  • Undesired beam portions on the left hand-side are cut out, so that the final beam 10 has two end portions with a continuous web and of same length (indicated e in Fig.3 f) .
  • the opening defined by the continuous line is the same as in Fig.2 whereas the opening defined by the dashed line is an alternative opening shape even more adapted for pre-cambering and having an opening width closer to that of rectangular cable guides to be passed through the opening.
  • This second opening design of course comprises curvilinear line portions indicated wb that become tangent to the peak 24.
  • the extent of the curvilinear line portion wb is greater than for undulated line 22, whereby the beginning and ending of the abutting flat segments of the peaks are even more difficult to perceive.
  • the greater length of curvilinear portion wb also allows for welding in this region for reinforcement.
  • Fig.5 illustrates a further embodiment of a castellated beam 110 in accordance with the present invention, where the undulated line comprises, on the sides of each peak 124, a curvilinear line portion (indicated wc in Fig.6 ) the slope of which progressively approaches that of the peak 124.
  • like elements are indicated by same reference numbers as in Figs. 1-4 , however preceded by 1.
  • the welded flat segments of the peaks 124 are not represented and the reference numeral only indicates their position.
  • the undulated lines 22 or 122 can be various designs for the undulated lines 22 or 122, respectively cutting line 22a, provided that next to the flat peaks a curvilinear line portion w, wb or wc, is formed that tangentially meets with the flat peaks 24, 124.
  • the slope of the curvilinear line portion continuously decreases until it reaches that of the flat peak, in this case zero since the flat peak is horizontal.
  • portion wb is considered to be of greater axial extent as portion w because its slope is closer to the tangent than for portion w over a longer distance from the peak 24.
  • curvilinear line portions w, wb and wc may thus characterise the curvilinear line portions w, wb and wc by their axial extent (as projected along the axis), combined with the spacing between the upper and lower web edge lines meeting at a peak 24, 124.
  • letter wL illustrates the measurement of the axial extent of a curvilinear line portion tangentially meeting the peak 24; this corresponds to the measure of w, wb or wc.
  • Letter DL indicates the measurement of the distance between the upper and lower web edge lines 22 at the beginning of the curvilinear line portion. Parameters wL and DL thus reflect the design of the curvilinear lines portions and the way the openings appear in the vicinity of the peaks 24, 124 that form the uprights in the final beam (continuous web portions between two peaks).
  • table 1 presents numerical values of several parameters of beams that are shown in the Figs. Table 1 Beam of Figs.1 &4; web edge design of line 22 Beam of Figs.1 &4; web edge design of line 22b Beam of Figs.5 &6; web edge design of line 122
  • the peaks have a length of 250 or 150 mm, their length can be reduced to a very small value.
  • the length of the peaks can indeed be varied depending on the application, and can be smaller where the application requires less resistance from the beam.
  • a beam in accordance with the present invention can be manufactured in a more traditional way, i.e. by simple translation, as illustrated in Fig.8 a) to e) .
  • the two first steps a) b) are similar to those of Fig.3 .
  • a starting H-section beam 210a is cut along its web 212a following a continuous cutting line 222a, thus creating two T-beams 220 1 and 220 2 .
  • the respective free web edge profile 222 of the two T-beams 220 1 and 220 2 thus results from the shape of the continuous cutting line 222a.
  • the two T-beams 220 1 and 220 2 are then separated, as shown in Fig.8b , by distance sufficient to permit relative shifting in the axial direction.
  • the peaks 224 of the upper and lower beams are brought into abutment as shown in Fig.8 c) and the coinciding peaks 224 may then be welded together.
  • the simple axial shifting of the lower beam 220 1 to the right does not permit to obtain one beam extremity with continuous web. Excess material at the beam extremities is cut.

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Claims (20)

  1. Procédé de fabrication d'une poutre avec des ouvertures comprenant les étapes de :
    a) fourniture de deux poutres en T, ayant chacune une aile et une âme, l'âme de chacune desdites poutres en T ayant un bord libre respectif décrivant une ligne ondulée avec des crêtes et des bases, lesdites crêtes étant éloignées de l'aile respective et lesdites bases étant proches de l'aile respective, lesdites crêtes étant en outre sensiblement plates et parallèles à un axe commun ;
    b) positionnement des deux poutres en T dans une relation face à face de manière à ce que les crêtes de leurs bords d'âme viennent en contact et coïncident sensiblement ;
    c) soudage des deux poutres en T ensemble le long de leurs crêtes coïncidantes pour former une poutre avec des ouvertures situées dans son âme ;
    dans lequel les lignes ondulées de bord d'âme desdites poutres en T sont conçues de manière à comprendre une partie de ligne curviligne de chaque côté de chaque crête plate, ladite partie de ligne curviligne ayant une pente s'approchant progressivement de la pente de la crête plate,
    caractérisé en ce que
    lesdites parties de ligne curvilignes s'étendent sur une distance d'approche de 150 mm à partir des extrémités des crêtes, telles que projetées le long de l'axe de poutre ; et
    les lignes ondulées de bord d'âme sont conçues de telle manière qu'après soudage, la distance entre des parties de lignes courbes se faisant face de deux crêtes jointes coïncidantes n'est pas de plus de 20 mm sur ladite distance d'approche.
  2. Procédé selon la revendication 1, dans lequel lesdites deux poutres en T sont coupées dans une poutre unique de section en H ou en I conformément à une ligne de coupe continue le long de l'âme de celle-ci.
  3. Procédé selon la revendication 2, dans lequel ladite ligne de coupe continue définit ladite ligne ondulée.
  4. Procédé selon la revendication 3, dans lequel ladite ligne de coupe continue définit en outre des sections d'extrémité plates s'étendant à partir de chaque extrémité de ladite ligne ondulée jusqu'à l'extrémité respective de poutre, l'une des sections d'extrémité plates étant plus proche d'une aile tandis que l'autre est plus proche de l'opposé de ladite poutre unique.
  5. Procédé selon la revendication 4, dans lequel, lors de la coupe, les deux poutres en T sont séparées, l'une des poutres en T est retournée de 180°, et les deux poutres en T sont positionnées conformément à l'étape b).
  6. Procédé selon la revendication 5, dans lequel l'étape c) inclut en outre le soudage des sections d'extrémité plates aboutées à une extrémité de la poutre formée et la formation d'une partie d'âme continue à l'extrémité opposée de la poutre.
  7. Procédé selon la revendication 6, comprenant l'étape de coupe du matériau de poutres en excès de manière à former des parties d'extrémité de poutres de même longueur et ayant une âme continue.
  8. Procédé selon la revendication 1, dans lequel lesdites deux poutres en T sont coupées dans deux poutres différentes de section en H ou en I.
  9. Procédé selon l'une quelconque des revendications précédentes, dans lequel l'étape c) inclut en outre le soudage de parties de ligne curvilignes se faisant face sur une longueur donnée.
  10. Procédé selon l'une quelconque des revendications précédentes, dans lequel les poutres en T sont cambrées avant le soudage à l'étape c).
  11. Procédé selon l'une quelconque des revendications précédentes, dans lequel les lignes ondulées de bord d'âme sont conçues de telle manière que lesdites parties de lignes curvilignes s'étendent sur une distance d'approche allant jusqu'à 200 mm à partir des extrémités de crêtes.
  12. Procédé selon l'une quelconque des revendications précédentes, dans lequel les lignes ondulées de bord d'âme sont conçues de telle manière qu'après soudage, la distance entre des parties de lignes courbes se faisant face de deux crêtes jointes coïncidantes n'est pas de plus de 15 mm sur ladite distance d'approche.
  13. Poutre avec des ouvertures ayant une âme et deux ailes, ladite poutre consistant en deux poutres en T assemblées, lesdites poutres en T ayant chacune une aile et une âme, dans laquelle l'âme de chacune desdites poutres en T a un bord libre respectif décrivant une ligne ondulée avec des crêtes et des bases, lesdites crêtes étant distantes de l'aile respective et lesdites bases étant proches de l'aile respective, lesdites crêtes étant sensiblement plates et parallèles à un axe commun et dans laquelle lesdites poutres en T sont jointes par leurs crêtes qui sont soudées ensemble, dans laquelle les lignes ondulées de bord d'âme desdites poutres en T sont conçues de manière à comprendre une partie de ligne curviligne de chaque côté de chaque crête plate, ladite partie de ligne curviligne ayant une pente s'approchant progressivement de la pente de la crête plate ;
    caractérisée en ce que les lignes ondulées de bord d'âme sont conçues de telle manière que lesdites parties de ligne curvilignes s'étendent sur une distance d'approche de 150 mm à partir des extrémités des crêtes, telles que projetées le long de l'axe de poutre ; et la distance entre des parties de lignes courbes se faisant face de deux crêtes jointes coïncidantes n'est pas de plus de 20 mm sur ladite distance d'approche.
  14. Poutre selon la revendication 13, dans laquelle lesdites lignes ondulées de bord d'âme sont conçues de telle manière que lesdites parties de ligne curvilignes s'étendent sur une distance d'approche de jusqu'à 200 mm à partir des extrémités des crêtes.
  15. Poutre selon la revendication 13 ou 14, dans laquelle la distance entre des parties de lignes courbes se faisant face de deux crêtes jointes coïncidantes n'est pas de plus de 15 mm sur ladite distance d'approche.
  16. Poutre selon la revendication 13, 14 ou 15, comprenant des goujons sur une aile.
  17. Poutre selon l'une quelconque des revendications 13 à 16, dans laquelle lesdites bases sont plates et de même longueur que lesdites crêtes plates.
  18. Poutre selon l'une quelconque des revendications 13 à 17, dans laquelle la proportion d'âme continue au sein d'une unité de motif de la poutre est dans la plage de 5 à 20%, préférablement 6 à 13%.
  19. Poutre selon l'une quelconque des revendications 13 à 18, dans laquelle lesdites deux poutres en T proviennent d'une poutre unique ou de deux poutres différentes.
  20. Poutre selon l'une quelconque des revendications 13 à 19, dans laquelle ladite poutre est pré-cambrée.
EP07102970A 2007-02-23 2007-02-23 Procédé de fabrication d'une poutre structurelle avec ouvertures Active EP1961887B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES07102970T ES2370267T3 (es) 2007-02-23 2007-02-23 Procedimiento de fabricación de una viga estructural con aberturas.
EP07102970A EP1961887B1 (fr) 2007-02-23 2007-02-23 Procédé de fabrication d'une poutre structurelle avec ouvertures
AT07102970T ATE519901T1 (de) 2007-02-23 2007-02-23 Verfahren zur herstellung eines trägers mit öffnungen
PL07102970T PL1961887T3 (pl) 2007-02-23 2007-02-23 Sposób wytwarzania belki konstrukcyjnej z otworami

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Application Number Priority Date Filing Date Title
EP07102970A EP1961887B1 (fr) 2007-02-23 2007-02-23 Procédé de fabrication d'une poutre structurelle avec ouvertures

Publications (2)

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EP1961887A1 EP1961887A1 (fr) 2008-08-27
EP1961887B1 true EP1961887B1 (fr) 2011-08-10

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EP07102970A Active EP1961887B1 (fr) 2007-02-23 2007-02-23 Procédé de fabrication d'une poutre structurelle avec ouvertures

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EP (1) EP1961887B1 (fr)
AT (1) ATE519901T1 (fr)
ES (1) ES2370267T3 (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8739491B2 (en) 2009-10-01 2014-06-03 Protektorwerk Florenz Maisch Gmbh & Co. Kg Thin-walled, cold formed lightweight structural profile element and method for producing such a profile element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017109526A1 (fr) 2015-12-22 2017-06-29 Arcelormittal Procédé de transfert thermique d'un article métallique ou non métallique

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Publication number Priority date Publication date Assignee Title
FR835808A (fr) * 1937-05-04 1939-01-04 Babcock & Wilcox Ltd éléments de construction métalliques composés
GB680022A (en) * 1950-01-18 1952-10-01 Braithwaite & Company Engineer Improvements in and relating to elements for use in constructional engineering
US3066394A (en) * 1958-02-05 1962-12-04 Litzka Franz Apparatus for the manufacture of deeply-webbed girders
US5669197A (en) * 1991-06-03 1997-09-23 Bodnar; Ernest Robert Sheet metal structural member
CA2404320C (fr) * 2002-09-30 2005-02-08 Ernest R. Bodnar Poteau d'acier avec ouvertures et bords formes, et methode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8739491B2 (en) 2009-10-01 2014-06-03 Protektorwerk Florenz Maisch Gmbh & Co. Kg Thin-walled, cold formed lightweight structural profile element and method for producing such a profile element

Also Published As

Publication number Publication date
EP1961887A1 (fr) 2008-08-27
ES2370267T3 (es) 2011-12-14
ATE519901T1 (de) 2011-08-15
PL1961887T3 (pl) 2012-01-31

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