EP0483089A2 - Poutre pour la construction de planchers - Google Patents

Poutre pour la construction de planchers Download PDF

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Publication number
EP0483089A2
EP0483089A2 EP91850249A EP91850249A EP0483089A2 EP 0483089 A2 EP0483089 A2 EP 0483089A2 EP 91850249 A EP91850249 A EP 91850249A EP 91850249 A EP91850249 A EP 91850249A EP 0483089 A2 EP0483089 A2 EP 0483089A2
Authority
EP
European Patent Office
Prior art keywords
flange
web
bearing
concrete
bearing flange
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.)
Withdrawn
Application number
EP91850249A
Other languages
German (de)
English (en)
Other versions
EP0483089A3 (fr
Inventor
Bengt Johansson
Jan Stenmark
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0483089A2 publication Critical patent/EP0483089A2/fr
Publication of EP0483089A3 publication Critical patent/EP0483089A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E04C3/29—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

Definitions

  • the present invention relates to a beam structure which is intended primarily as a load-bearing beamwork or girderwork in concrete floors that are cast on site.
  • the inventive floor beam structure includes a steel beam which is encased in concrete on the working site.
  • the steel beam is preferably prefabricated.
  • the beam structure is constructed in a manner to obtain static coaction between the beam and the surrounding concrete. Due to its special construction, the beam structure has a high degree of stiffness and mechanical strength in relation to its weight and constructional height. The beam is also highly fire resistant, due to the design of the beam among other things.
  • the object of the present invention is to provide a prefabricated steel beam or girder structure which while possessing the same good properties of the aforedescribed beam structure comprises far fewer parts and can be produced at much lower costs than the earlier beam.
  • the present invention relates to a floor beam structure which comprises a steel beam for a concrete floor which is cast completely or partially on site, said beam including a bearing flange and parts which project outwardly from said flange, and is characterized in that the steel beam includes said bearing flange and a web-flange which is upstanding perpendicular to said bearing flange; in that the web-flange is provided, either in or adjacent to its upper edge, with recesses and/or penetrating holes which are intended to cooperate with elongated structural members, preferably steel rods or bars, which extend perpendicularly to the web-flange and which coact with the surrounding concrete.
  • Figures 1 and 2 illustrate a steel beam which is intended to be encased in concrete in floor structures that are cast on site, either completely or partially.
  • the steel beam includes a bearing or supporting flange 1 and a beam part which is upstanding therefrom and which includes a web-flange 2 which extends perpendicular to the bearing flange.
  • recesses 4 and penetrating holes 12 are intended to cooperate with elongated structural members, preferably steel rods or bars, such as reinforcing irons, which extend perpendicularly to the web-flange 2 and which are intended to coact with the surrounding concrete 5.
  • the Figure 2 illustration shows two holes 12, with the intention of illustrating where such holes are positioned in relation to the upper edge of the web-flange. The reinforcing irons are pressed down into the recesses, or inserted through the holes in that case when holes are provided, prior to casting.
  • the elongated members i.e. the reinforcing irons for instance, function partly as shear-connectors between the beam and the surrounding concrete and partly as bend reinforcements when the concrete has a wide lateral extension.
  • the direction of shear extends parallel with the longitudinal axis of the beam.
  • the round members are placed at a predetermined distance apart, according to the loads concerned. The person skilled in this art will have no difficulty in calculating this distance or spacing.
  • the lengths of the elongated members are also adapted according to the loads concerned and can be said to correspond roughly from 5 to 10 times the thickness of the concrete floor.
  • the concrete 5 is preferably laid to a thickness above the reinforcing irons 3.
  • the beam is prefabricated and transported to the building site.
  • the elongated, round members are positioned in the recesses or in the holes in the web-flange and then encased in concrete.
  • the web-flange 2 is welded to the bearing flange 1.
  • the bearing flange and the web-flange are formed integrally with one another, which is achieved suitably by dividing the web of an H-section or profile in the direction of the longitudinal axis of the beam, along a line which extends centrally between the flanges of the H-section.
  • the beam can be provided with longitudinally extending reinforcing irons 6 suitably spaced on conventional spacers 7, as shown in Figure 4, so as to improve the fire-resistance of the beam.
  • the beam is thus provided with one or more reinforcing irons which extend close to and above the web and on both sides thereof.
  • the underside of the concrete floor can either consist of a so-called coaction plate 9 or of prefabricated concrete elemnts 10 which are placed on the bottom flange 1 of the steel beam.
  • Figure 6 illustrates another embodiment of the inventive beam, where angle irons are welded to and extend along each of the edges of the bearing flange 1.
  • the advantage with this construction is that the bearing capacity and stiffness of the beam are increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP19910850249 1990-10-16 1991-10-10 Poutre pour la construction de planchers Withdrawn EP0483089A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9003314A SE9003314L (sv) 1990-10-16 1990-10-16 Bjaelklagsbalk
SE9003314 1990-10-16

Publications (2)

Publication Number Publication Date
EP0483089A2 true EP0483089A2 (fr) 1992-04-29
EP0483089A3 EP0483089A3 (fr) 1992-05-06

Family

ID=20380668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910850249 Withdrawn EP0483089A3 (fr) 1990-10-16 1991-10-10 Poutre pour la construction de planchers

Country Status (3)

Country Link
EP (1) EP0483089A3 (fr)
JP (1) JPH05133032A (fr)
SE (1) SE9003314L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795527A1 (fr) * 1996-03-12 1997-09-17 Vapo Oy Construction de plaucher pour des tunnels de préparation de compost
EP1227198A2 (fr) * 2001-01-30 2002-07-31 Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH Plancher composite d'acier
CN108385885A (zh) * 2018-02-12 2018-08-10 北京工业大学 一种装配式隐形梁楼板

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829864A1 (de) * 1977-07-12 1979-02-01 Arbed Verbundtraeger
EP0086966A1 (fr) * 1982-02-08 1983-08-31 Irmfried Brendel Poutre combinée acier-béton
DE8403511U1 (de) * 1984-02-07 1984-05-30 Brendel, Irmfried, Dipl.-Ing., 7847 Badenweiler Stahlbetonverbundtraeger
DE8502754U1 (de) * 1985-02-01 1989-03-23 Brendel, Irmfried, Dipl.-Ing., 7847 Badenweiler Stahlverbundträger
EP0369914A1 (fr) * 1988-11-16 1990-05-23 Centre D'etudes Techniques De L'equipement De L'est Procédé de solidarisation d'une masse de matière à un support fonctionnel et dispositifs ainsi obtenus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829864A1 (de) * 1977-07-12 1979-02-01 Arbed Verbundtraeger
EP0086966A1 (fr) * 1982-02-08 1983-08-31 Irmfried Brendel Poutre combinée acier-béton
DE8403511U1 (de) * 1984-02-07 1984-05-30 Brendel, Irmfried, Dipl.-Ing., 7847 Badenweiler Stahlbetonverbundtraeger
DE8502754U1 (de) * 1985-02-01 1989-03-23 Brendel, Irmfried, Dipl.-Ing., 7847 Badenweiler Stahlverbundträger
EP0369914A1 (fr) * 1988-11-16 1990-05-23 Centre D'etudes Techniques De L'equipement De L'est Procédé de solidarisation d'une masse de matière à un support fonctionnel et dispositifs ainsi obtenus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795527A1 (fr) * 1996-03-12 1997-09-17 Vapo Oy Construction de plaucher pour des tunnels de préparation de compost
EP1227198A2 (fr) * 2001-01-30 2002-07-31 Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH Plancher composite d'acier
EP1227198A3 (fr) * 2001-01-30 2003-08-06 Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH Plancher composite d'acier
CN108385885A (zh) * 2018-02-12 2018-08-10 北京工业大学 一种装配式隐形梁楼板

Also Published As

Publication number Publication date
EP0483089A3 (fr) 1992-05-06
SE9003314D0 (sv) 1990-10-16
SE9003314L (sv) 1992-04-17
JPH05133032A (ja) 1993-05-28

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