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(11) | EP 1 180 187 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
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| (54) |
HOLLOW-CORE SLAB BEARER STÜTZE FÜR HOHLPLATTEN SUPPORT POUR DALLE A NOYAU CREUX |
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| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
BACKGROUND OF THE INVENTION
[0001] 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.
[0002] A hollow-core slab bearer according to the preamble of claim 1 is known from Finnish model register certificate 19550.
[0004] 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
[0005] An object of the invention is to provide a hollow-core slab bearer with enhanced flame resistance.
[0006] 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.
[0007] The preferred embodiments of the hollow-core slab bearer of the invention are disclosed in the dependent claims.
[0008] 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
[0009] 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
[0010] 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.
[0011] 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.
[0012] 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.
[0013] 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.
[0014] 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.
[0015] 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.
[0016] 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.
[0017] 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.
[0018] 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.
[0019] The first end plate 4 and the second end plate 5 are preferably welded to the profile 1 with an L-shaped cross-section.
[0020] 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.
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 thatbetween 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.
ein Profil (1) mit einem L-förmigen Querschnitt, wobei das Profil ein erstes Ende (2) und ein zweites Ende (3) hat, wobei das Hohlplattenende, das an die Öffnung oder ähnliche strukturelle Unterbrechung angrenzt, in das Profil (1) mit L-förmigem Querschnitt einsetzbar ist;
eine erste Endplatte (4) an dem ersten Ende (2) des Profils (1) mit L-förmigem Querschnitt und eine zweite Endplatte (5) an dem zweiten Ende (3) des Profils (1) mit L-förmigem Querschnitt;
ein erstes Halteelement (6), das erlaubt, die Hohlplattenstütze an einer ersten Hohlplatte oder Struktur anzubringen, die der Hohlplatte benachbart ist, die an die Öffnung oder ähnliche strukturelle Diskontinuität angrenzt; und
ein zweites Halteelement (7), das erlaubt, die Hohlplattenstütze an einer zweiten Hohlplatte oder Struktur anzubringen, die der Hohlplatte benachbart ist, die an die Öffnung oder ähnliche strukturelle Diskontinuität angrenzt, wobei die zweite Hohlplatte oder Struktur, wenn von der ersten Hohlplatte aus betrachtet, an der anderen Seite der Hohlplatte ist, die an die Öffnung oder ähnliche strukturelle Diskontinuität angrenzt,
dadurch gekennzeichnet, daßzwischen der ersten Endplatte (4) und der zweiten Endplatte (5) eine Versteifung (8) bereitgestellt ist, die die erste Endplatte (4) und die zweite Endplatte (5) miteinander verbindet.
un profilé (1) ayant une section transversale en forme de L, le profilé ayant une première extrémité (2) et une seconde extrémité (3), l'extrémité de la dalle à noyau creux qui borde l'ouverture ou la discontinuité structurelle similaire pouvant être placée dans le profilé (1) ayant une section transversale en forme de L,
une première plaque d'extrémité (4) sur la première extrémité (2) du profilé (1) ayant une section transversale en forme de L, et une seconde plaque d'extrémité (5) sur la seconde extrémité (3) du profilé (1) ayant une section transversale en forme de L,
un premier élément d'appui (6) qui permet de monter le support pour dalle à noyau creux sur une première dalle à noyau creux ou une structure adjacente à la dalle à noyau creux qui borde l'ouverture ou la discontinuité structurelle similaire, et
un second élément d'appui (7) qui permet de monter le support pour dalle à noyau creux sur une seconde dalle à noyau creux ou une structure adjacente à la dalle à noyau creux qui borde l'ouverture ou la discontinuité structurelle similaire, la seconde dalle à noyau creux ou la structure se situant de l'autre côté de la dalle à noyau creux qui borde l'ouverture ou la discontinuité structurelle similaire, lorsque vu à partir de la première dalle à noyau creux,
caractérisé en ce qu'entre la première plaque d'extrémité (4) et la seconde plaque d'extrémité (5) est agencé un renfort (8) qui lie ensemble la première plaque d'extrémité (4) et la seconde plaque d'extrémité (5).