EP1180187B1 - Hollow-core slab bearer - Google Patents

Hollow-core slab bearer Download PDF

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Publication number
EP1180187B1
EP1180187B1 EP00929575A EP00929575A EP1180187B1 EP 1180187 B1 EP1180187 B1 EP 1180187B1 EP 00929575 A EP00929575 A EP 00929575A EP 00929575 A EP00929575 A EP 00929575A EP 1180187 B1 EP1180187 B1 EP 1180187B1
Authority
EP
European Patent Office
Prior art keywords
hollow
core slab
end plate
bearer
profile
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.)
Expired - Lifetime
Application number
EP00929575A
Other languages
German (de)
French (fr)
Other versions
EP1180187A1 (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.)
Teraspeikko 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 EP1180187A1 publication Critical patent/EP1180187A1/en
Application granted granted Critical
Publication of EP1180187B1 publication Critical patent/EP1180187B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • 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
    • 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
    • E04C2003/023—Lintels
    • 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
    • E04C2003/0434—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 open cross-section free of enclosed cavities
    • 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

Definitions

  • the invention relates to a hollow-core slab bearer for bearing an end of a hollow-core slab, which end borders on an opening or similar structural discontinuity
  • the hollow-core slab bearer comprising: a profile with an L-shaped cross-section, the profile having a first end and a second end, and the hollow-core slab end which borders on the opening or similar structural discontinuity being placeable into the profile with an L-shaped cross-section; a first end plate at the first end of the profile with an L-shaped cross-section, and a second end plate at the second end of the profile with an L-shaped cross-section; a first support member which allows the hollow-core slap bearer to be mounted onto a first hollow-core slab or structure adjacent to the hollow-core slab which borders on the opening or similar structural discontinuity; and a second support member which allows the hollow-core slab bearer to be mounted onto a second hollow-core slab or structure adjacent to the hollow-core slab which borders on the opening or similar structural discontinuity, the second hollow-core slab or structure being on the other side
  • a hollow-core slab bearer according to the preamble of claim 1 is known from Finnish model register certificate 19550.
  • GB 2 297 782 discloses a housing for a coller stutter.
  • the known hollow-core slab bearer is painted with flame-resistant paint before it is mounted at the building site.
  • An object of the invention is to provide a hollow-core slab bearer with enhanced flame resistance.
  • a hollow-core slab bearer of the invention characterized in that between the first end plate and the second end plate is a reinforcement which binds the first end plate and the second end plate together.
  • the reinforcement between the first end plate and the second end plate is meant to support the hollow-core slab bearer in case of fire. Since the reinforcement is built, i.e. cast, inside the hollow-core slab during the construction works, it is at the same time protected against fire and can therefore very well function as a support for the hollow-core slab bearer in case of fire.
  • the Figure shows a hollow-core slab bearer of the invention for supporting an end of a hollow-core slab (not shown) which end borders on an opening (not shown) or similar structural discontinuity.
  • the hollow-core slab bearer comprises a profile 1 with an L-shaped cross-section, the profile having a first end 2 and a second end 3, the hollow-core slab end which borders on the opening or similar structural discontinuity being placeable into the profile 1 with an L-shaped cross-section.
  • the length of the profile 1 with an L-shaped cross-section is preferably selected to substantially correspond to the width of the hollow-core slab.
  • the profile 1 with an L-shaped cross-section is preferably made of an originally uniform L-shaped profile blank; another altemative would be to use for example two flat steel blanks welded together.
  • the Figure shows an L-shaped profile 1 with a substantially right-angled cross-section, but the parts of the profile 1 with an L-shaped cross-section can be at another angle as well.
  • the hollow-core slab bearer comprises a first end plate 4 at the first end 2 of the profile 1 with an L-shaped cross-section and a second end plate 5 at the second end 3 of the profile 1 with an L-shaped cross-section.
  • the hollow-core slab bearer also comprises a first support member 6 that allows the bearer to be mounted, i.e. supported, onto a first hollow-core slab or structure adjacent to the slab defined by the opening or similar structural discontinuity, and a second support member 7 that allows the hollow-core slab bearer to be mounted, i.e. supported, onto a second hollow-core slab or structure adjacent to the slab bordering on the opening or similar structural discontinuity, the second hollow-core slab or structure being on the other side of the slab bordering on the opening or similar structural discontinuity, when seen from the first hollow-core slab.
  • a reinforcement 8 which binds the first end plate 4 and the second end plate 5 together.
  • the reinforcement 8 is preferably made of at least one ribbed bar.
  • the reinforcement 8 can be welded, for example, to the first end plate 4 and the second end plate 5.
  • first end plate 4 and the second end plate 5 comprise support structures 9.
  • the support structures 9 are meant to support the first end plate 4 and the second end plate 5 in case of fire, for example.
  • the support structures 9 are made of pieces of ribbed bar welded to the first end plate 4 and to the second end plate 5 such that on each side of the first end plate 4 and the second end plate 5 there is one piece of ribbed bar.
  • the first end plate 4 and the second end plate 5 are preferably welded to the profile 1 with an L-shaped cross-section.
  • the first support member 6 is preferably seamtessly joined to the first end plate 4 and the second support member 7 is preferably seamlessly joined to the second end plate 5.
  • the first support member 6 and the first end plate 4 are made of one piece with an L-shaped cross-section and the second support member 7 and the second end plate 5 are made of one piece with an L-shaped cross-section.
  • the hollow-core slab bearer is preferably painted with a flame-resistant paint.

Landscapes

  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Building Environments (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Motor Or Generator Frames (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Laminated Bodies (AREA)
  • Wire Bonding (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to a hollow-core slab bearer for bearing an end of a hollow-core slab which borders on an opening. The bearer comprises: a profile (1) with an L-shaped cross-section, the profile having a first and a second end (2, 3), and the hollow-core slab end which borders on the opening being placeable into the profile (1) with an L-shaped cross-section; a first end portion (4) at the first end (2) of the profile (1) with an L-shaped cross-section; and a second end portion (5) at the second end (3) of the profile (1) with an L-shaped cross-section. The hollow-core slab bearer further comprises a first support member (6) which allows the hollow-core slab bearer to be mounted onto a first hollow-core slab or structure adjacent to the hollow-core slab which borders on the opening, and a second support member (7) which allows the hollow-core slab to be mounted to a second hollow-core slab or structure adjacent to the hollow-core slab which borders on the opening. Between the first and the second end portion (4, 5) is arranged a reinforcement (8) which binds the first end portion (4) and the second end portion (5) together.

Description

BACKGROUND OF THE INVENTION
The invention relates to a hollow-core slab bearer for bearing an end of a hollow-core slab, which end borders on an opening or similar structural discontinuity, the hollow-core slab bearer comprising: a profile with an L-shaped cross-section, the profile having a first end and a second end, and the hollow-core slab end which borders on the opening or similar structural discontinuity being placeable into the profile with an L-shaped cross-section; a first end plate at the first end of the profile with an L-shaped cross-section, and a second end plate at the second end of the profile with an L-shaped cross-section; a first support member which allows the hollow-core slap bearer to be mounted onto a first hollow-core slab or structure adjacent to the hollow-core slab which borders on the opening or similar structural discontinuity; and a second support member which allows the hollow-core slab bearer to be mounted onto a second hollow-core slab or structure adjacent to the hollow-core slab which borders on the opening or similar structural discontinuity, the second hollow-core slab or structure being on the other side of the hollow-core slab which borders on the opening or similar structural discontinuity, when seen from the first hollow-core slab.
A hollow-core slab bearer according to the preamble of claim 1 is known from Finnish model register certificate 19550.
GB 2 297 782 discloses a housing for a coller stutter.
Since the structures must be flame resistant as well, the known hollow-core slab bearer is painted with flame-resistant paint before it is mounted at the building site.
BRIEF DESCRIPTION OF THE INVENTION
An object of the invention is to provide a hollow-core slab bearer with enhanced flame resistance.
The objects of the invention are achieved with a hollow-core slab bearer of the invention, characterized in that between the first end plate and the second end plate is a reinforcement which binds the first end plate and the second end plate together.
The preferred embodiments of the hollow-core slab bearer of the invention are disclosed in the dependent claims.
The reinforcement between the first end plate and the second end plate is meant to support the hollow-core slab bearer in case of fire. Since the reinforcement is built, i.e. cast, inside the hollow-core slab during the construction works, it is at the same time protected against fire and can therefore very well function as a support for the hollow-core slab bearer in case of fire.
LIST OF DRAWINGS
In the following, the invention will be described in greater detail with reference to the accompanying drawing which illustrates the structure of a hollow-core slab bearer.
DETAILED DESCRIPTION OF THE INVENTION
The Figure shows a hollow-core slab bearer of the invention for supporting an end of a hollow-core slab (not shown) which end borders on an opening (not shown) or similar structural discontinuity.
The hollow-core slab bearer comprises a profile 1 with an L-shaped cross-section, the profile having a first end 2 and a second end 3, the hollow-core slab end which borders on the opening or similar structural discontinuity being placeable into the profile 1 with an L-shaped cross-section.
The length of the profile 1 with an L-shaped cross-section is preferably selected to substantially correspond to the width of the hollow-core slab.
The profile 1 with an L-shaped cross-section is preferably made of an originally uniform L-shaped profile blank; another altemative would be to use for example two flat steel blanks welded together. The Figure shows an L-shaped profile 1 with a substantially right-angled cross-section, but the parts of the profile 1 with an L-shaped cross-section can be at another angle as well.
Furthermore, the hollow-core slab bearer comprises a first end plate 4 at the first end 2 of the profile 1 with an L-shaped cross-section and a second end plate 5 at the second end 3 of the profile 1 with an L-shaped cross-section.
The hollow-core slab bearer also comprises a first support member 6 that allows the bearer to be mounted, i.e. supported, onto a first hollow-core slab or structure adjacent to the slab defined by the opening or similar structural discontinuity, and a second support member 7 that allows the hollow-core slab bearer to be mounted, i.e. supported, onto a second hollow-core slab or structure adjacent to the slab bordering on the opening or similar structural discontinuity, the second hollow-core slab or structure being on the other side of the slab bordering on the opening or similar structural discontinuity, when seen from the first hollow-core slab.
Between the first end plate 4 and the second end plate 5 is provided a reinforcement 8 which binds the first end plate 4 and the second end plate 5 together.
The reinforcement 8 is preferably made of at least one ribbed bar. The reinforcement 8 can be welded, for example, to the first end plate 4 and the second end plate 5.
In the hollow-core slab bearer of the Figure the first end plate 4 and the second end plate 5 comprise support structures 9. The support structures 9 are meant to support the first end plate 4 and the second end plate 5 in case of fire, for example. In the Figure the support structures 9 are made of pieces of ribbed bar welded to the first end plate 4 and to the second end plate 5 such that on each side of the first end plate 4 and the second end plate 5 there is one piece of ribbed bar.
The first end plate 4 and the second end plate 5 are preferably welded to the profile 1 with an L-shaped cross-section.
The first support member 6 is preferably seamtessly joined to the first end plate 4 and the second support member 7 is preferably seamlessly joined to the second end plate 5.
In the hollow-core slab bearer shown in the Figure, the first support member 6 and the first end plate 4 are made of one piece with an L-shaped cross-section and the second support member 7 and the second end plate 5 are made of one piece with an L-shaped cross-section.
The hollow-core slab bearer is preferably painted with a flame-resistant paint.
It is apparent to a person skilled in the art that as technology advances, the basic idea of the invention can be implemented in various ways. The invention and its embodiments are therefore not restricted to the examples described above, but can vary within the scope of the claims.

Claims (5)

  1. A hollow-core slab bearer for bearing an end of a hollow-core slab, which end borders on an opening or similar structural discontinuity, the hollow-core slab bearer comprising
    a profile (1) with an L-shaped cross-section, the profile having a first end (2) and a second end (3), the hollow-core slab end which borders on the opening or similar structural discontinuity being placeable into the profile (1) with an L-shaped cross-section;
    a first end plate (4) at the first end (2) of the profile (1) with an L-shaped cross-section, and a second end plate (5) at the second end (3) of the profile (1) with an L-shaped cross-section;
    a first support member (6) which allows the hollow-core slab bearer to be mounted onto a first hollow-core slab or structure adjacent to the hollow-core slab which borders on the opening or similar structural discontinuity; and
    a second support member (7) which allows the hollow-core slab bearer to be mounted onto a second hollow-core slab or structure adjacent to the hollow-core slab which borders on the opening or similar structural discontinuity, the second hollow-core slab or structure being on the other side of the hollow-core slab which borders on the opening or similar structural discontinuity, when seen from the first hollow-core slab,
       characterized in that
    between the first end plate (4) and the second end plate (5) is provided a reinforcement (8) which binds the first end plate (4) and the second end plate (5) together.
  2. A hollow-core slab bearer according to claim 1. characterized in that the reinforcement (8) is made of at least one ribbed bar.
  3. A hollow-core slab bearer according to claim 1, characterized in that the first end plate (4) and the second end plate (5) comprise support structures (9).
  4. A hollow-core slab bearer according to claim 1, characterized in that the first end plate (4) and the second end plate (5) are welded to the profile (1) with an L-shaped cross-section.
  5. A hollow-core slab bearer according to claim 1, characterized in that the first support member (6) is seamlessly joined to the first end plate (4) and the second support member (7) is seamlessly joined to the second end plate (5).
EP00929575A 1999-05-24 2000-05-23 Hollow-core slab bearer Expired - Lifetime EP1180187B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI990238U 1999-05-24
FI990238U FI4119U1 (en) 1999-05-24 1999-05-24 Carrier for a hole plate
PCT/FI2000/000464 WO2000071831A1 (en) 1999-05-24 2000-05-23 Hollow-core slab bearer

Publications (2)

Publication Number Publication Date
EP1180187A1 EP1180187A1 (en) 2002-02-20
EP1180187B1 true EP1180187B1 (en) 2005-02-23

Family

ID=8553656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00929575A Expired - Lifetime EP1180187B1 (en) 1999-05-24 2000-05-23 Hollow-core slab bearer

Country Status (10)

Country Link
EP (1) EP1180187B1 (en)
AT (1) ATE289648T1 (en)
AU (1) AU4759800A (en)
DE (1) DE60018277T2 (en)
DK (1) DK1180187T3 (en)
ES (1) ES2233375T3 (en)
FI (1) FI4119U1 (en)
NO (1) NO321577B1 (en)
PL (1) PL207403B1 (en)
WO (1) WO2000071831A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0914091D0 (en) * 2009-08-12 2009-09-16 Beresforde Gary Lintel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034386B (en) * 1978-10-25 1983-03-02 British Steel Corp Lintels
US4409771A (en) * 1979-12-12 1983-10-18 Lowe Colin F Sheet metal beam
GB2297782B (en) * 1995-01-05 1998-07-22 Robert Currie Roller shutter assembly
GB2297100B (en) * 1995-01-18 1998-04-01 Knox Colin J M Damp proof course system

Also Published As

Publication number Publication date
PL352019A1 (en) 2003-07-14
ES2233375T3 (en) 2005-06-16
AU4759800A (en) 2000-12-12
PL207403B1 (en) 2010-12-31
DE60018277T2 (en) 2005-07-21
FI4119U1 (en) 1999-08-31
WO2000071831A1 (en) 2000-11-30
ATE289648T1 (en) 2005-03-15
DE60018277D1 (en) 2005-03-31
NO20015687L (en) 2001-11-21
NO321577B1 (en) 2006-06-06
EP1180187A1 (en) 2002-02-20
DK1180187T3 (en) 2005-03-14
FIU990238U0 (en) 1999-05-24
NO20015687D0 (en) 2001-11-21

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