EP0002494B1 - Enveloppe pare-feu pour éléments de construction métalliques tels que poutres, poteaux ou analogues - Google Patents

Enveloppe pare-feu pour éléments de construction métalliques tels que poutres, poteaux ou analogues Download PDF

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Publication number
EP0002494B1
EP0002494B1 EP19780101582 EP78101582A EP0002494B1 EP 0002494 B1 EP0002494 B1 EP 0002494B1 EP 19780101582 EP19780101582 EP 19780101582 EP 78101582 A EP78101582 A EP 78101582A EP 0002494 B1 EP0002494 B1 EP 0002494B1
Authority
EP
European Patent Office
Prior art keywords
fire
cladding
steel
fire protection
enclosure
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
Application number
EP19780101582
Other languages
German (de)
English (en)
Other versions
EP0002494A1 (fr
Inventor
Felx Dr. Wehrmann
Volkmar Dr. Hilzensauer
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.)
Isovolta AG
Original Assignee
Isovolta Osterreichische Isolierstoffwerke AG
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 Isovolta Osterreichische Isolierstoffwerke AG filed Critical Isovolta Osterreichische Isolierstoffwerke AG
Publication of EP0002494A1 publication Critical patent/EP0002494A1/fr
Application granted granted Critical
Publication of EP0002494B1 publication Critical patent/EP0002494B1/fr
Expired 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
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/943—Building elements specially adapted therefor elongated
    • E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material

Definitions

  • the invention relates to fire protection cladding for steel construction parts such as steel beams, steel supports or the like, as defined in the preamble of claim 1.
  • the steel supports to be protected are provided with a covering made of combustible or flame-retardant material with low thermal conductivity.
  • the fire protection effect of such cladding is such.
  • a fire protection cladding of the type mentioned is known from GB-A-983 409.
  • This fire protection cladding intended for a steel support has a shell in the form of a double jacket, which is constructed from a plurality of plates with a U-shaped or L-shaped cross-section made of incombustible material.
  • the strip-shaped cladding parts attached to the steel support at locations distributed over its longitudinal extent serve as spacers between the steel support and the casing.
  • the invention solves the problem of specifying fire protection cladding for steel construction parts in which the occurrence of cracks in the event of fire is permitted, but the cladding is designed so that the fire protection effect of the cladding despite such Cracks remain.
  • the advantage achieved by the invention is that the different expansion of the steel construction part and the fire protection cladding is compensated for by the fact that at predetermined locations of the cladding in a controlled manner at most only very small cracks occur, deposits being provided at these locations, so that an overall ineffectiveness of fire protection cannot occur.
  • FIGS. 2 and 3 show partial representations of the sections 11-11 and 111-111 in planes parallel to the girder longitudinal extension.
  • Fire protection panels are used to build up the fire protection cladding, some with surface coatings made of sodium kraft paper, which are produced by hot pressing glued expanded mica granulate.
  • the steel girder 1 which is to be provided with the fire protection cladding, serves to support a ceiling construction indicated with 2.
  • cladding parts in the form of panel blanks 3 or 4 made of the fire protection panel material are now glued into the cheeks of the carrier 1 or glued to the bottom of the carrier bottom flange along the carrier 1 - at intervals of 60 cm from center to center (see Figures 2 and 3).
  • the actual covering of the cladding also consists of blanks of the fire protection plates mentioned, namely from the side plates 5, to which, on the side facing the carrier 1, clips 6 made of the same material are attached by means of clips 6, and a base plate 8 1 facing surfaces of the side plates 5 and the base plate 8 are periodically at intervals of 60 cm perpendicular to the longitudinal extension saw cuts 9 and 10 (see Figures 2 and 3) with a depth of attached about half the plate thickness.
  • the side plates 5 with their mounting strips 7 are then placed on the lower flange of the carrier 1, the saw cuts 9 each coming to lie in the middle of the panel blanks 3 glued into the cheeks of the carrier 1 and only one at each Side of the incision 9 are fastened by means of the clips 11 (see Fig. 2).
  • the base plate 8 is brought into place, the saw cuts 10 of which coincide with the centers of the plate blanks 4 glued onto the lower beam.
  • the connection of the base plate 8 with these plate blanks 4 now also takes place only on one side of the saw cut 10 by means of the clips 12 (see FIG. 3).
  • the side plates 5 and the base plate 8 are now also connected to one another by clips 13 to form the finished shell.
  • the predetermined breaking points formed by the saw cuts 9 and 10 are now distributed at a distance of 60 cm from one another over the entire longitudinal extent of the fire protection cladding.
  • the expected effect was shown, namely that, owing to the different thermal expansion between the carrier 1 and its fire protection cladding, the envelope formed by the side plates 5 or base plate 8 tears at the predetermined breaking points mentioned, and gaps of a few millimeters in width thereby to open.
  • these gaps are deposited by the panel blanks 3 and 4, as a result of which the flow of the hot fire gases towards the surface of the carrier 1 is largely avoided and the fire protection cladding does not fall apart despite the occurrence of these cracks, but its protective effect as a whole is retained.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Claims (2)

1. Revêtement de protection contre le feu pour des éléments de construction allongés (1) en acier, tels que poutres d'acier, étançons d'acier et analogues, comportant une enveloppe en forme de caisson constituée par des plaques (5, 8) non combustibles ou difficilement inflammables, ainsi que des éléments de revêtement (3,4) en matériau non combustible ou difficilement inflammable, qui sont disposés entre ladite enveloppe et l'élément de construction (1) en des endroits répartis sur la longueur de celui-ci, caractérisé en ce qu'au moins une partie des plaques (5, 8) de l'enveloppe qui sont dirigées vers le feu sont purvues de zones à section réduite faisant fonction de zones de rupture, et en ce qu'entre ces zones de rupture et la surface de l'élément de construction en acier un des éléments de revêtement intéressés (3, 4) en matériau non combustible ou difficilement inflammable constitue un élément de doublure dont la surface intéressée est appliquée contre la surface intérieure des plaques (5,8).
2. Revêtement de protection contre le feu selon la revendication 1, caractérisé en ce que les zones des plaques, qui présentent une section réduite, sont formées par des saignées ou rainures (9,10) ménagées dans les surfaces des plaques sur le côté intérieur de l'enveloppe.
EP19780101582 1977-12-09 1978-12-06 Enveloppe pare-feu pour éléments de construction métalliques tels que poutres, poteaux ou analogues Expired EP0002494B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT8792/77 1977-12-09
AT879277A AT349708B (de) 1977-12-09 1977-12-09 Brandschutzverkleidung fuer stahltraeger

Publications (2)

Publication Number Publication Date
EP0002494A1 EP0002494A1 (fr) 1979-06-27
EP0002494B1 true EP0002494B1 (fr) 1981-09-23

Family

ID=3608572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780101582 Expired EP0002494B1 (fr) 1977-12-09 1978-12-06 Enveloppe pare-feu pour éléments de construction métalliques tels que poutres, poteaux ou analogues

Country Status (3)

Country Link
EP (1) EP0002494B1 (fr)
AT (1) AT349708B (fr)
DE (2) DE2861122D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126618B (en) * 1982-09-09 1986-02-12 Conder International Ltd Constructing a building
US4628654A (en) * 1982-09-20 1986-12-16 Wesmer Konstruksie (Eiedoms) Beperk Composite floor structures
JP6853776B2 (ja) 2017-12-21 2021-03-31 住友林業株式会社 貫通部の耐火被覆構造
JP6853775B2 (ja) * 2017-12-21 2021-03-31 住友林業株式会社 貫通部用耐火被覆材

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB983409A (en) * 1963-03-19 1965-02-17 Turners Asbestos Cement Co Improvements relating to the encasement of structural steelwork
CH544197A (de) * 1971-12-09 1973-11-15 Promat Feuerschutzplatte
US3748815A (en) * 1972-01-03 1973-07-31 A Parker Plasterboard to column clip

Also Published As

Publication number Publication date
DE2861122D1 (en) 1981-12-10
ATA879277A (de) 1978-09-15
AT349708B (de) 1979-04-25
EP0002494A1 (fr) 1979-06-27
DE7836127U1 (de) 1979-05-17

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