EP2729264A1 - Profilé de construction ainsi que procédé et dispositif pour fabriquer un tel profilé de construction - Google Patents

Profilé de construction ainsi que procédé et dispositif pour fabriquer un tel profilé de construction

Info

Publication number
EP2729264A1
EP2729264A1 EP12737784.4A EP12737784A EP2729264A1 EP 2729264 A1 EP2729264 A1 EP 2729264A1 EP 12737784 A EP12737784 A EP 12737784A EP 2729264 A1 EP2729264 A1 EP 2729264A1
Authority
EP
European Patent Office
Prior art keywords
longitudinal
profile
openings
region
regions
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
EP12737784.4A
Other languages
German (de)
English (en)
Other versions
EP2729264B1 (fr
Inventor
Christof Maisch
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.)
Protektorwerk Florenz Maisch GmbH and Co KG
Original Assignee
Protektorwerk Florenz Maisch GmbH and Co KG
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 Protektorwerk Florenz Maisch GmbH and Co KG filed Critical Protektorwerk Florenz Maisch GmbH and Co KG
Priority to PL12737784T priority Critical patent/PL2729264T3/pl
Publication of EP2729264A1 publication Critical patent/EP2729264A1/fr
Application granted granted Critical
Publication of EP2729264B1 publication Critical patent/EP2729264B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • 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
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
    • B21D31/046—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal making use of rotating cutters
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001—Shaping combined with punching, e.g. stamping and perforating
    • 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
    • B21D47/02—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars by expanding
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
    • B21D5/086—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers for obtaining closed hollow profiles
    • 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
    • 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
    • E04C2003/046—L- or T-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 construction profile, in particular a T, C, U, V, H, L, M, W, ⁇ or hat profile, as well as a method and an apparatus for manufacturing of such a construction profile.
  • Construction profiles of this type are produced in many cases from a metallic, elongated body, such as a metal sheet.
  • the generation is often done in the so-called online method, i. a correspondingly elongated material web is subjected during the forward movement of the material web in the longitudinal direction of a plurality of forming steps in order to achieve the final profile shape. It is particularly important that high processing speeds of up to 150 m / min are achieved in order to achieve the highest possible throughput.
  • a construction profile according to the invention comprises a particularly metallic elongated base body which comprises a longitudinally extending, essentially closed central region and at least two longitudinal regions extending on both sides of the middle region, in which widened openings are arranged transversely to the longitudinal extent of the main body Center region of the base body is at least one extending in the longitudinal direction of the body over its entire length extending profiled recess or increase with lateral guide surfaces.
  • At least one profile recess or elevation extending in the longitudinal direction is formed with lateral guide surfaces in a middle region of an elongate material web, substantially slot-shaped openings are made in at least two longitudinal regions of the material web extending on both sides of the middle region, the profile depression or increase during a longitudinal movement of the web along a guide portion guided so that a movement of the central region is prevented transversely to the longitudinal direction and substantially in the plane of the web through the interlocking profile recess or increase and the guide portion, and the openings during the longitudinal movements of the web widened by pulling the longitudinal regions transverse to the longitudinal direction.
  • the device comprises a profiling unit for producing the profile depression or elevation in the material web, a cutting unit for producing the slot-shaped openings, a widening unit for widening the openings and a guide section for longitudinal guidance of the profile recess or elevation, wherein the guide section is thus inserted into the Profile recess engages or the profile elevation overlaps that a movement of the central region of the material web is prevented transversely to the longitudinal direction and substantially in the plane of the material web.
  • the openings in the longitudinal areas for example, not by material wastes punching, but generated by a flaring process.
  • a profile recess or elevation with lateral guide surfaces is thereby formed, especially in the middle area.
  • the profile recess may be formed as a guide groove and / or the profile elevation as the rear region of a guide groove.
  • a guide groove can be embossed in a simple manner, which can be done directly in the online process.
  • the profile recess or increase can thus be generated directly during the longitudinal movement of the material web.
  • the slot-shaped openings can also be advantageously produced during the longitudinal movement of the material web, in order to ensure a one-step on-line production process in this way.
  • the longitudinal regions comprise at least two partial longitudinal regions arranged side by side in the longitudinal direction, which are integrally connected to one another by folded, web-shaped sections in order to form the widened openings.
  • the openings can thus be produced by folding over these web-shaped sections, which in each case connect two partial longitudinal areas of the respective longitudinal area in one piece.
  • the openings are produced in this case by a so-called folding process.
  • the construction profile comprises a double-walled region with two surface sections, wherein the widened openings are formed in the two surface sections of the double-walled region.
  • the longitudinal areas can be bent over after the widening of the openings relative to the central region, wherein preferably the central region is reshaped so that the longitudinal regions form the double-walled region.
  • each one adjoining the respective longitudinal region outer lying region, which may be formed in particular without openings, are bent over the respective longitudinal region.
  • the resulting construction profile then comprises accordingly bent outer areas, in which, in particular, no openings are formed.
  • the construction profile as a T-profile rail in particular for supporting plate-shaped elements, preferably for the insertion of ceiling panels for grid ceilings, are formed.
  • the middle region can form a top flange, the double-walled region a web, and the outer regions a bottom flange of the T-profile rail. Since the web is double-walled, it is not disadvantageous for the stability that the openings are formed in this area.
  • corrugations may preferably be formed in the longitudinal regions. These can extend in particular in the areas between the openings and thus extend transversely to the longitudinal extent of the longitudinal areas.
  • the beads can extend over the entire width of the longitudinal areas or only over a part thereof.
  • a plurality of beads in the edge regions of the longitudinal regions are connected to each other via further beads extending in the longitudinal direction.
  • the beads can form a conductor structure or one or more comb structures, in particular intermeshing one another.
  • these can be embossed into the longitudinal regions, in particular in the online process.
  • the beads are not embossed directly, but the material regions of the longitudinal regions surrounding the beads are embossed, so that the non-embossed regions ultimately form protruding beads.
  • the beads can be advantageously formed after the production of the openings.
  • the openings form compensating sections, which substantially absorb the material stresses occurring due to the embossing process, so that a deformation caused by the embossing process takes place. gently undulating or buckling of the material web outside of the embossments is prevented or at least minimized. This is especially true when the openings are at least partially or completely disposed within the imprints.
  • the maximum depth of the embossings may preferably be at least approximately 2 times, in particular at least approximately 3 times, preferably at least approximately 5 times, the material thickness of the starting material of the material web. Even with these unusually deep embossings, an undesired undulation or bulging of the material web is avoided through the openings and at the same time stiffening of the material is achieved.
  • FIG. 1 is a perspective view of a frame construction with inventively designed T-profile slide NEN to form a grid ceiling
  • FIG. 2 shows a perspective view of a construction profile according to the invention designed as a T-profile rail from FIG. 1, FIG.
  • FIG. 3 is a plan view of a material web for producing the construction profile according to FIG. 2
  • FIG. 4 shows a schematic representation of a device for producing a construction profile designed according to the invention
  • FIG. 5 shows a cross section through the material web according to FIG. 3 and
  • FIG. 3 is a plan view of a material web for producing the construction profile according to FIG. 2
  • FIG. 4 shows a schematic representation of a device for producing a construction profile designed according to the invention
  • FIG. 5 shows a cross section through the material web according to FIG. 3 and FIG.
  • Fig. 6 is a perspective view of an inventive
  • Fig. 1 shows a frame structure 1, which consists of a plurality of parallel and perpendicular thereto extending rails 2.
  • the profiled rails 2 have a T-shaped cross section, with an elongated web 3, and a lower flange 4 adjoining its lower longitudinal edge.
  • the lower flange 4 consists of two folds of the web 3 outwards, through which two lower flange sections 5, 6 are formed, the support surfaces for plate-shaped elements 7, for example, cover plates form.
  • the rails 2 have on each of their upper longitudinal side a top flange 8, which is designed as a hollow profile and for coupling the rails 2 on suspension elements 9, 10 is used. From Fig. 2, the structure of the rail 2 according to the invention is clearly visible.
  • the web 3 forms a double-walled region 11 with two surface sections 12 of the profiled rail 2, in each of which a multiplicity of openings 13 are formed.
  • the profiled rail 2 is formed symmetrically along a longitudinally extending center plane coinciding with the web 3 and comprises a main body 14 which has a longitudinally extending central region 15, longitudinal regions 16 extending longitudinally on both sides of the central region 15 and adjoining the Longitudinal portions 16 each subsequent, also extending in the longitudinal direction outer regions 17 includes.
  • the middle region 15 is designed as a hollow profile and forms the upper flange 8.
  • the two longitudinal regions 16 adjoin one another and form the double-walled region 11 and thus the web 3.
  • the two outer regions 17 are in each case opposite the longitudinal regions 16 by 90 Bent and form the two lower flange sections 5, 6.
  • the profile recess has two lateral guide surfaces 19, which are designed for lateral guidance in the production of the rail 2, as will be explained in more detail below.
  • the openings 13 formed in the longitudinal regions 16 are arranged alternately.
  • the longitudinal regions 16 are each subdivided into two partial longitudinal regions 21, 22 which are arranged next to one another in the longitudinal direction and which are integrally connected to one another by folded, web-shaped sections 23 in order to form the openings 13.
  • the openings 13 are formed as widened openings, as will also be explained in more detail below. While the openings 13 in the two longitudinal regions 16 are each arranged so that they are aligned with each other, it is in principle also it is possible for the openings 13 in the one longitudinal area 16 to be offset relative to the openings 13 in the other longitudinal area 16, so that the openings 13 are each partially or completely covered by the material of the respectively opposite longitudinal area 16.
  • Transverse beads 41 are formed in each of the longitudinal regions 16 and extend into the regions between the openings 13.
  • the cross beads 41 are connected at their outer ends in each case with longitudinal beads 42, so that two comb-like structures are formed.
  • This transverse and longitudinal beads 41, 42 can either be embossed directly or the material regions 43 lying between the transverse and longitudinal beads 41, 42 can be embossed, so that the transverse and longitudinal beads 41, 42 remain as elevations. In this case, it is achieved that the material stresses occurring during the embossing process are absorbed by the openings 13 located within the embossed regions, so that undesirable waviness or bulging of the longitudinal regions 16 is avoided.
  • FIG. 3 shows a plan view of an elongated material web 24, which is moved in accordance with an arrow 25 along its longitudinal direction in order to produce the profiled rail 2.
  • the material web 24 is formed as a flat material web, wherein in Fig. 3 by dashed lines 26, 27 respectively bending edges are indicated, along which each of the outer regions 17 relative to the longitudinal regions 16 and the longitudinal regions 16 are bent relative to the central region 15, to ultimately produce the rail 2 as shown in FIG. 2.
  • the openings 13 are not yet shown in their expanded form in the longitudinal regions 16, but there are only litz-shaped slot-shaped openings 26 present, for example, by a Laser cutting method, a Hubstanz compiler or a rotary cutting method are introduced.
  • the material web 24 is unwound in a continuous process, for example, from a roll 29 and fed via guide rollers 30 to a profiling unit 31. In this profile groove 18 is impressed continuously, as indicated in Fig. 4 at the position 32. In a further forward movement in the longitudinal direction according to the arrow 25, the material web 24 is fed to a cutting unit 33, in which the slot-shaped openings 28 are generated. Thereafter, the web of an optional embossing unit 44 for generating the transverse and longitudinal beads 41, 42 are supplied.
  • the material web 24 is fed to a widening unit 34.
  • guide portions 35, 36 are provided, which cooperate with the profile recess 18 so that a movement of the central region 15 of the material web 24 is prevented transversely to the longitudinal direction and substantially in the plane of the web 24.
  • the guide section 35 engages in the profile recess 18 from above, while the guide section 36 engages around the corresponding profile elevation on the other side of the material web 24.
  • the guide portion 35 abuts against the guide surfaces 19 of the profile recess 18 and thus prevents movement transversely to the longitudinal extent of the material web 24.
  • the guide portion 36 abuts the corresponding outer surfaces of the profile elevation, also to avoid a transverse displacement.
  • only one such guide section can be provided instead of two such guide sections 35, 36.
  • On the opposite surface of the material web may be provided as needed, another suitable support or guide surface for the web 24.
  • the profile recess can also be introduced from below into the material web 24, so that a corresponding profile elevation protrudes upward from the material web 24.
  • the material web 24 guided in this way is widened in the widening unit 34 by gripping the two outer longitudinal edges 37, 38 of the material web 24 and pulling them apart in a direction perpendicular to the longitudinal extension and essentially in the plane of the material web 24 in accordance with arrows 39, 40.
  • the material web expanded in this way can be converted in a forming station, not shown, to the profiled rail 2 shown in FIG. 2, by the outer regions 17 along the dashed line 26 with respect to the longitudinal regions 16 and along the dashed lines 27 with respect to the central region 15 are bent.
  • the central region 15 is in addition to a Hollow profile bent with square cross-section or other suitable cross section, as can be seen in Fig. 2.
  • Fig. 6 shows an inventively designed V-profile.
  • the longitudinal regions 16 are V-shaped folded against each other and comprise as described for Fig. 2, the openings 13.
  • the profile recess 18 coincides with the folded longitudinal edge between the legs of the V-profile and is therefore hardly visible.
  • the openings 13 are widened by pulling the longitudinal regions 16 apart, wherein the central region 15 is fixed over the profile depression 18 in the transverse direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

L'invention concerne un profilé de construction, en particulier un profil en T, C, U, V, H, L, M, W, Q ou profilé chape pourvu d'un corps de base (14) de forme allongée, en particulier métallique. Le corps de base comporte une région centrale (15) pratiquement fermée, s'étendant dans la direction longitudinale et au moins deux régions longitudinales (16) s'étendant des deux côtés de la région centrale (15). Des ouvertures (13) élargies sont disposées transversalement à l'étendue longitudinale du corps de base (14) dans les régions longitudinales (16). Une dépression (18) ou élévation s'étendant dans la direction longitudinale du corps de base (14) sur toute la longueur de celui-ci et pourvue de surfaces de guidage latérales (19) sont formées dans la région centrale (15) du corps de base (14). L'invention concerne également un procédé ainsi qu'un dispositif pour fabriquer un tel profilé de construction.
EP12737784.4A 2011-07-27 2012-07-24 Profilé de construction ainsi que procédé et dispositif pour fabriquer un tel profilé de construction Active EP2729264B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12737784T PL2729264T3 (pl) 2011-07-27 2012-07-24 Profil konstrukcyjny oraz sposób i urządzenie do produkcji tego profilu konstrukcyjnego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011108679A DE102011108679A1 (de) 2011-07-27 2011-07-27 Bauprofil sowie verfahren und vorrichtung zum herstellen eines solchen bauprofils
PCT/EP2012/064019 WO2013023860A1 (fr) 2011-07-27 2012-07-24 Profilé de construction ainsi que procédé et dispositif pour fabriquer un tel profilé de construction

Publications (2)

Publication Number Publication Date
EP2729264A1 true EP2729264A1 (fr) 2014-05-14
EP2729264B1 EP2729264B1 (fr) 2015-09-09

Family

ID=46548443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12737784.4A Active EP2729264B1 (fr) 2011-07-27 2012-07-24 Profilé de construction ainsi que procédé et dispositif pour fabriquer un tel profilé de construction

Country Status (8)

Country Link
EP (1) EP2729264B1 (fr)
AR (1) AR087316A1 (fr)
AU (1) AU2012297120C1 (fr)
DE (1) DE102011108679A1 (fr)
PL (1) PL2729264T3 (fr)
TW (1) TW201314098A (fr)
UY (1) UY34214A (fr)
WO (1) WO2013023860A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL425333A1 (pl) * 2018-04-24 2019-01-02 Jerzy Kazimierz Szlendak Belki stalowe SCCB zespolonego stropu stalowo-betonowego

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Publication number Priority date Publication date Assignee Title
FR3047912B1 (fr) * 2016-02-20 2018-08-03 Sas Tourrette Procede de fabrication d'une piece metallique ayant au moins un angle droit
DE102017100920A1 (de) * 2017-01-18 2018-07-19 Protektorwerk Florenz Maisch Gmbh & Co. Kg Verfahren und Vorrichtung zum Aufweiten eines Metallelements
CN111715775B (zh) * 2020-06-24 2024-07-05 江苏工程职业技术学院 一种方管等距打孔模具

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL425333A1 (pl) * 2018-04-24 2019-01-02 Jerzy Kazimierz Szlendak Belki stalowe SCCB zespolonego stropu stalowo-betonowego

Also Published As

Publication number Publication date
AU2012297120A1 (en) 2014-03-13
DE102011108679A1 (de) 2013-01-31
WO2013023860A1 (fr) 2013-02-21
AU2012297120C1 (en) 2017-02-16
UY34214A (es) 2013-02-28
TW201314098A (zh) 2013-04-01
PL2729264T3 (pl) 2016-02-29
AU2012297120B2 (en) 2016-09-15
EP2729264B1 (fr) 2015-09-09
AR087316A1 (es) 2014-03-12

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