EP1507938A1 - Method and means for manufacturing steel beam - Google Patents

Method and means for manufacturing steel beam

Info

Publication number
EP1507938A1
EP1507938A1 EP03725251A EP03725251A EP1507938A1 EP 1507938 A1 EP1507938 A1 EP 1507938A1 EP 03725251 A EP03725251 A EP 03725251A EP 03725251 A EP03725251 A EP 03725251A EP 1507938 A1 EP1507938 A1 EP 1507938A1
Authority
EP
European Patent Office
Prior art keywords
base plate
web
plate
parts
supports
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
EP03725251A
Other languages
German (de)
French (fr)
Other versions
EP1507938B1 (en
Inventor
Kari Tuominen
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.)
Peikko Group Oy
Original Assignee
Teraspeikko Oy
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 Teraspeikko Oy filed Critical Teraspeikko Oy
Publication of EP1507938A1 publication Critical patent/EP1507938A1/en
Application granted granted Critical
Publication of EP1507938B1 publication Critical patent/EP1507938B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E04C3/065—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web with special adaptations for the passage of cables or conduits through the web
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/291—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures with apertured web
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • 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
    • E04C2003/0465—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 square- or rectangular-shaped

Definitions

  • Figure 6 is a longitudinal view of the beam manufactured with the method of the invention.

Abstract

A method and means for manufacturing a steel beam, the steel beam serving together with concrete as a bearing composite structure for various slab sys-tems. In the method the base plate (1), web parts (2) and top plate (3) of the beam are cut from a plate material, the parts are assembled in such a manner that between them, a space is formed for concrete, and the parts are welded together. Web plates (3) are cut to a curved shape according to precambering. Side supports (4) determining the position of the web plates and centre supports (5) determining the location of the top plate (3) are fastened to the base plate (1) at regular intervals in the longitudinal direction of the beam. A force (F) is directed to the base plate (1) that forces the base plate (1) to the curvature defined by the web plates (2).

Description

METHOD AND MEANS FOR MANUFACTURING STEEL BEAM
[0001] The invention relates to a method for manufacturing a steel beam, the steel beam serving together with concrete as a bearing composite structure for various slab systems, and in the method, the base plate, web parts and top plate of the beam are cut from a plate material, the above- mentioned parts are assembled in such a manner that between the parts, a space is formed for concrete fed through openings in the web part, and the parts are welded together. Further, the invention relates to a means for manufacturing a steel beam. [0002] The invention relates to a beam, on which the bearing structures of a building, such as hollow-core slabs, composite slabs, shell slabs and cast-in-situ, can be supported. During seam grouting or other concreting, the beam is filled with concrete, and after the concrete has hardened, the beam serves as a composite structure. Beams of this type are today quite well known in the field of element structures. Examples of solutions known in the field are those described in Finnish publications 85745 and 92089. The use of a composite structure provides a steel beam that is lighter than the earlier ones and the beam can be used at longer bearings than the earlier beams.
[0003] The solutions described in the above-mentioned publications serve as structures without problems. The drawback in the solutions is, however, their manufacturing method. The used manufacturing methods are relatively arduous and quite complex. Owing to the arduousness and complexity of manufacture, the costs are high and consequently, the price of the beam is high, which means that the end result is not the best possible. [0004] It is an object of the invention to provide a method and means for manufacturing a steel beam, by means of which the drawbacks of the prior art can be eliminated. This is achieved by the present invention. The method of the invention is characterized in that the web plates are cut to a curved shape according to pre-cambering, that side supports determining the position of the web plates and centre supports determining the location of the top plate are fastened to the base plate at regular intervals in the longitudinal direction of the beam, that a force is directed to the base plate that forces the base plate to the curvature determined by the web plates, whereby the side supports determine the position of the web plates and the centre supports de- termine the curvature of the top plate to be set in place. The means of the invention is, in turn, characterized in that it comprises a part to be fastened to the base plate, a first end of which is arranged to determine the location of the low edge of the web plate and a second end is arranged to determine the location of the top edge of the web plate.
[0005] The advantage of the invention over the prior art is above all the fact that the manufacture of the beam is essentially simpler than before, whereby the costs are substantially lower. The implementation of the method of the invention is also simple in practice, whereby the introduction and use of the invention are advantageous. The method of the invention is also very flexible, because the invention can be applied in an advantageous manner to the manufacture of very different beams.
[0006] In the following, the invention will be described in more detail by means of a preferred embodiment described in the attached drawing, in which
Figures 1 to 5 are general stepwise views of the method of the in- vention,
Figure 6 is a longitudinal view of the beam manufactured with the method of the invention, and
Figure 7 is a perspective view of the beam manufactured with the method of the invention. [0007] Figures 1 to 5 show the method of the invention in a set of figures shown in steps. In the figures, reference numeral 1 marks the base plate of the beam, reference numeral 2 marks the web parts and reference numeral 3 marks the top plate. Figures 1 to 5 only show one web plate. However, a finished beam has two web plates, as shown in Figure 6, for instance. [0008] According to the essential idea of the invention, the base plate 1 of the beam is first placed on a platform, as shown in Figure 1. In the next step, side supports 4 determining the position of the web plates 2 and centre supports 5 determining the location of the top plate are fastened to the base plate at regular intervals in the longitudinal direction. The side supports 4 and centre supports 5 are clearly shown in Figure 6. The fastening of the side supports 4 and centre supports 5 to the base plate is shown generally in Figure 2. In this step, the top plate 3 can also be set in place on the centre supports 5, as shown in Figure 2.
[0009] In the next step, the web plates 2 are placed on the side supports 4. According to the essential idea of the invention, the web plates 2 are cut to a curved shape according to the pre-cambering of the beam. For the sake of clarity, the curved shape of the web plate is shown exaggerated. Setting the web plates 2 on the base plate 1 is shown in Figure 3. During the cutting step, openings 6 are also made to the web plates 2, through which concrete can be fed inside the beam. [0010] In the next step of the method of the invention, a force is directed to the base plate that forces the base plate 1 to the curvature determined by the web plates 2, whereby the side supports 4 determine the position of the web plates 2 and, because the centre supports move with the base plate to the position according to the curvature of the web plates, the centre sup- ports 5 determine the curvature of the top plate 3. The above-mentioned force is marked with arrows F in Figure 4.
[0011] The base plate 1 , web plates 2 and top plate 3 are fastened together by welding to obtain the beam shown in Figure 5. The beam can also be equipped with end plates to close the ends of the beam. The end plates are not shown in Figures 1 to 5. The end plates are fastened to the beam by welding. The end plates are shown by way of example in Figure 7 and marked with reference numeral 7.
[0012] The method of the invention described above is particularly advantageous in that the manufacture of the beam is done without expensive jigs that were earlier used in the manufacture of beams.
[0013] Concreting the beams made in the above-mentioned manner in connection with different structures is known to a person skilled in the art and is thus not described in greater detail herein. Reference is merely made to Finnish publication 85745, in which this is described in more detail. [0014] The above-mentioned side supports 4 are formed in such a manner that they comprise a part to be fastened to the base plate and having a first end 4a arranged to determine the location of the low edge of the web plate and a second end 4b arranged to determine the location of the top edge of the web plate. The side supports 4 can in principle be made in any shape. A particularly advantageous solution is one in which the part to be fastened to the base plate is substantially L-shaped and the free ends 4a, 4b of its branches are arranged to form the ends determining the locations of the edges of the web plate 2. In this type of solution, the outer surface of one branch is arranged to serve as the fastening surface between the part and the base plate 1. This type of application is shown in Figure 6. The side supports 4 can be fastened to the base plate 1 by welding, for instance. [0015] The side supports 4 can be cut from a plate-like material, such as steel plate. For example, the L-shaped side supports used in the embodiment of Figure 6 are made in this manner. The centre supports 5 can be made in the same manner as the side supports 4. The shape of the centre supports 5 can also vary; in the embodiment of Figure 6, the centre supports are separate, substantially rectangular pieces. According to the essential idea of the invention, it is, however, possible to make the supports in such a manner that the side support and centre support are made up of one and the same element, if this is considered necessary. [0016] The above embodiments of the invention are not intended to restrict the invention in any way, but the invention can be modified freely within the scope of the claims. Thus, it is clear that the means of the invention or its details need not be exactly as described in the figures, and solutions of a different kind are also possible. The side supports and/or centre supports can also be made of a bar-like material, etc.

Claims

1. A method for manufacturing a steel beam, the steel beam serving together with concrete as a bearing composite structure for various slab systems, and in the method, the base plate (1), web parts (2) and top plate (3) of the beam are cut from a plate material, the above-mentioned parts are assembled in such a manner that between the parts, a space is formed for concrete fed through openings (6) in the web part (2), and the parts are welded together, characterized in that web plates (2) are cut to a curved shape according to pre-cambering, that side supports (4) determining the position of the web plates and centre supports (5) determining the location of the top plate (3) are fastened to the base plate (1) at regular intervals in the longitudinal direction of the beam, that a force (F) is directed to the base plate (1) that forces the base plate (1) to the curvature defined by the web plates (2), whereby the side supports (4) determine the position of the web plates (2) and the centre supports (5) determine the curvature of the top plate (3) to be set in place.
2. A method as claimed in claim 1, characterized in that the side supports (4) and centre supports (5) are welded to the base plate (1).
3. A means for manufacturing a steel beam, the steel beam being arranged to serve together with concrete as a bearing composite structure for various slab systems, and in the beam, a base plate (1), web parts (2) and top plate (3) cut from a plate material are assembled and welded together in such a manner that between the parts, a space is formed for concrete fed through openings (6) in the web plate (2), characterized in that the means comprises a part (4) to be fastened to the base plate (1) and having a first end (4a) arranged to determine the location of the low edge of the web plate (2) and a second end (4b) arranged to determine the location of the top edge of the web plate (2).
4. A means as claimed in claim 3, characterized in that the part (4) to be fastened to the base plate is substantially L-shaped and the free ends (4a, 4b) of its branches are arranged to form the ends determining the location of the edges of the web plate (2) and that the outer surface of one end is arranged to serve as the fastening surface between the part (4) and the base plate (1).
EP03725251A 2002-05-29 2003-05-23 Method for manufacturing steel beam and steel beam Expired - Lifetime EP1507938B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20021009A FI118816B (en) 2002-05-29 2002-05-29 Method and means for producing a steel beam
FI20021009 2002-05-29
PCT/FI2003/000398 WO2003100186A1 (en) 2002-05-29 2003-05-23 Method and means for manufacturing steel beam

Publications (2)

Publication Number Publication Date
EP1507938A1 true EP1507938A1 (en) 2005-02-23
EP1507938B1 EP1507938B1 (en) 2010-03-24

Family

ID=8564024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03725251A Expired - Lifetime EP1507938B1 (en) 2002-05-29 2003-05-23 Method for manufacturing steel beam and steel beam

Country Status (9)

Country Link
EP (1) EP1507938B1 (en)
AT (1) ATE462051T1 (en)
AU (1) AU2003227799A1 (en)
DE (1) DE60331828D1 (en)
DK (1) DK1507938T3 (en)
ES (1) ES2340674T3 (en)
FI (1) FI118816B (en)
NO (1) NO331600B1 (en)
WO (1) WO2003100186A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635198B (en) * 2012-04-09 2014-10-08 浙江东南网架股份有限公司 Combined elliptical section component and processing method thereof
CN104032893B (en) * 2014-06-26 2016-03-23 南京工业大学 A kind of integrated FRP fold-line-shaped plated construction for compound beam
FI20145669A (en) 2014-07-11 2016-01-12 Peikko Group Oy Steel beam
FI126697B (en) 2015-11-13 2017-04-13 Anstar Oy Method of making a steel beam
KR102310264B1 (en) * 2020-01-08 2021-10-07 (주)센벡스 Built up beam for composite beam of steel and concrete
CN113530051B (en) * 2021-07-12 2022-11-01 台州普立德建筑科技有限公司 Prefabricated rib-free laminated slab
FI20245215A1 (en) 2021-08-20 2024-02-22 Peikko Group Oy STEEL BEAM AND METHOD FOR PRODUCING A STEEL-CONCRETE JOINT BEAM
CN115446555B (en) * 2022-10-08 2024-05-07 上海宝冶工程技术有限公司 Manufacturing method of tubular crane beam

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US679430A (en) * 1900-03-29 1901-07-30 Jacob Schratwieser Floor and ceiling construction.
AT221782B (en) * 1960-02-25 1962-06-12 Mauro Fioretto Shape with a variable cross-section, in particular for the shuttering of components such as pillars or the like.
GB1407976A (en) * 1971-09-07 1975-10-01 Catnic Components Ltd Lintels
FI85745C (en) 1989-04-13 1993-02-23 Peikkorakenne Oy Fireproof prefabricated steel beam
FI92089C (en) 1993-01-13 1994-09-26 Deltatek Oy Prefabricated steel-concrete composite beam

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03100186A1 *

Also Published As

Publication number Publication date
WO2003100186A1 (en) 2003-12-04
DK1507938T3 (en) 2010-07-12
NO331600B1 (en) 2012-02-06
FI20021009A (en) 2003-11-30
AU2003227799A1 (en) 2003-12-12
NO20045686L (en) 2004-12-29
DE60331828D1 (en) 2010-05-06
ES2340674T3 (en) 2010-06-08
ATE462051T1 (en) 2010-04-15
EP1507938B1 (en) 2010-03-24
FI20021009A0 (en) 2002-05-29
FI118816B (en) 2008-03-31

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