EP0824171A1 - Elément résistant au feu - Google Patents

Elément résistant au feu Download PDF

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Publication number
EP0824171A1
EP0824171A1 EP97202500A EP97202500A EP0824171A1 EP 0824171 A1 EP0824171 A1 EP 0824171A1 EP 97202500 A EP97202500 A EP 97202500A EP 97202500 A EP97202500 A EP 97202500A EP 0824171 A1 EP0824171 A1 EP 0824171A1
Authority
EP
European Patent Office
Prior art keywords
fire
resistant
flange
cladding
sheet
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.)
Ceased
Application number
EP97202500A
Other languages
German (de)
English (en)
Inventor
Barend Nieuwenhuizen
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.)
Promat BV
Original Assignee
Promat BV
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 Promat BV filed Critical Promat BV
Publication of EP0824171A1 publication Critical patent/EP0824171A1/fr
Ceased 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

Definitions

  • the present invention relates to a fire-resistant element according to the preamble of Claim 1.
  • Such elements are used as columns or beams.
  • columns they are used for factory buildings and the like, and a wall will be fitted adjacent thereto.
  • beams they are used in all kinds of building structures and must be provided with a fire-resistant cladding. This is because the steel material from which these beams are made cannot withstand higher temperatures for long periods and, if unprotected, gives way prematurely in the event of fire.
  • Such enveloping "shuttering” is produced by fitting blocks in the space between the flanges of the beam and fixing the vertical strips of the sheeting thereto, the horizontal sheeting finally being fixed to ends of the vertical strips.
  • the object of the present invention is to provide a fire-resistant beam which retains its strength for a sufficiently long time in the event of a fire.
  • the invention is based on the idea that only certain parts of the section are subjected to such a great fire load that the entire section gives way prematurely.
  • a column is being used, it has been found that if the flange adjacent to the wall which is being used in combination with such a column is clad on the inside, a give-way time which is long enough to meet official regulations can be obtained.
  • the element is being used as a beam, it has been found that the bottom flange in particular is subjected to the greatest fire load, and absorbs most of the heat and transfers it to the vertical web and the flange situated above it, with the result that giving way ultimately occurs. If then the bottom horizontal surface is less capable of absorbing heat, the heat load of the entire section will be considerably reduced, so that in most cases the time until it gives way meets the relevant international regulations.
  • the fire-resistant cladding can comprise any cladding known in the prior art.
  • a first possibility is a coating which can be applied in all ways known in the prior art, such as spreading, spraying, injecting or brushing.
  • intumescent fretuning
  • endothermic types The latter types are characterized by a high heat capacity.
  • such coatings contain fibrous silicates or fibrous cements.
  • fire-resistant sheets such as PROMATECT®-H, marketed by applicant, can be used for the purpose.
  • a sheet material can be applied directly by gluing or any other known joining technique to the underside of the bottom flange of the beam concerned.
  • the sheet preferably projects at least 5 mm beyond the boundary of the bottom flange of the beam, so that it provides optimum protection against heat radiation. It can be fixed in particular by means of U-brackets.
  • spacer blocks between the fire-resistant sheet and the section. This means that a thinner sheet will suffice, because an insulating air layer is present between the sheet and the beam.
  • the spacer blocks can be fixed to the beam in any manner known in the prior art, and a particularly simple way is to shoot nails through the steel beam. These nails are completely hidden from view by subsequently fitting the fire-resistant sheet.
  • the thickness of the sheets described above can lie between 6 and 25 mm, and this thickness depends on the required fire resistance and the structure used.
  • the fire-resistant horizontal beam according to the invention is indicated in its entirety by 1 in Fig. 1. It can be an IPE section or an HEA section.
  • This fire-resistant beam supports a building structure 2, not shown in any further detail.
  • the steel beam itself consists of a web 3 provided with a top flange 4 and a bottom flange 5.
  • a fire-resistant coating is applied to the bottom flange 5 by painting. This is a coating which foams up when heated, so that the bottom flange 5 is provided with an insulating layer. Since the temperature of the bottom flange 5 remains limited in the event of fire, it has been found that the entire structure of the beam is substantially protected, so that sufficient time before giving way can be achieved for most applications.
  • material 6 can be applied in mortar form, but it should be understood that any method known in the prior art for applying fire-resistant coatings can be used, and can be used on any type of fire-resistant coating.
  • Fig. 2 shows an embodiment of the beam in which the fire-resistant beam is indicated by 9.
  • the bottom flange 11 in this case is provided with a sheet 10 of fire-resistant material fixed thereto in a manner not shown in any further detail. Fixing can be by means of nails, U-brackets, glue and the like.
  • sheet 10 is of greater width than bottom flange 11.
  • the difference is indicated by 'b'.
  • the distance 'b' can lie between 5 and 20 mm, and is preferably approximately 10 mm.
  • Fig. 3 shows a variant which corresponds to what is illustrated in Fig. 2.
  • the beam here is indicated by 12, and the sheet material by 15.
  • a number of spacer blocks 13 are fitted between the sheet material 15, which projects slightly as in the embodiment according to Fig. 2, and the beam.
  • These spacer blocks are fixed to the bottom flange 16 of the beam by means of shot-fired nails 14 before the sheet material is fixed.
  • the rather unattractive appearance occurring at the head of the nails 14 is concealed by subsequently fitting the sheet 15.
  • This sheet can be fixed by any means known in the prior art, such as with shot-fired rivets.
  • a relatively thin sheet material for example with a thickness lying between 6 and 25 mm, and more particularly between 15 and 20 mm, can be used, in particular in the case of the embodiment according to Fig. 3.
  • a relatively thin sheet material for example with a thickness lying between 6 and 25 mm, and more particularly between 15 and 20 mm, can be used, in particular in the case of the embodiment according to Fig. 3.
  • sufficient thickness of the web of the sheet material is necessary at the corners of the legs in order to permit accommodation therein of (horizontal) rivets extending from the legs.
  • Fig. 4 shows in cross-section a vertical column 21.
  • This column consists of a steel H-section, for example HEA-300, with web 23 and flanges 24, 25. Adjacent to flange 25 is an insulating wall 22, and factory buildings and the like can be produced in this way.
  • flange 25 should be provided with a fire-resistant cladding 26 on its inside, i.e. on the side facing web 23.
  • cladding is fixed by means of strips 28 to wall 22. Fixing is achieved by first fixing the strips 28 by means of screws 29 to wall 22 and then by means of steel nails providing fixing between the strips 28 and fire-resistant sheets 26.
  • the strips 28 can likewise be made of a fire-resistant material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP97202500A 1996-08-12 1997-08-12 Elément résistant au feu Ceased EP0824171A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1003786A NL1003786C2 (nl) 1996-08-12 1996-08-12 Brandwerende ligger.
NL1003786 1996-08-12

Publications (1)

Publication Number Publication Date
EP0824171A1 true EP0824171A1 (fr) 1998-02-18

Family

ID=19763356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202500A Ceased EP0824171A1 (fr) 1996-08-12 1997-08-12 Elément résistant au feu

Country Status (2)

Country Link
EP (1) EP0824171A1 (fr)
NL (1) NL1003786C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006044924A2 (fr) * 2004-10-19 2006-04-27 Henkel Corporation Entretoise conçue pour fixer un materiau de finition a des supports metalliques structurels et procede d'installation de ladite entretoise
EP1782974A3 (fr) * 2005-11-08 2007-07-18 HÜBNER GmbH Intercommunication entre deux véhicules articulés comportant un plancher
WO2009073377A1 (fr) * 2007-12-06 2009-06-11 Ppg Industries Ohio, Inc. Bandes intumescentes pour protéger du feu une poutre structurale

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1387141A (en) * 1972-01-13 1975-03-12 Kenyon & Sons Ltd William Method of fixing fire protective cladding to structural steel-work
EP0011358A1 (fr) * 1978-09-30 1980-05-28 Tac Construction Materials Limited Procédé pour attacher des panneaux à des poutres en acier
DE3036012A1 (de) * 1980-09-24 1982-05-06 Rudolf Hensel KG, 2000 Hamburg Brandschutz-isolierung
JPH0285336A (ja) * 1988-08-05 1990-03-26 Nippon Steel Corp ビルドアップ耐熱形鋼の製造方法
JPH08144393A (ja) * 1994-11-25 1996-06-04 Nkk Corp 耐火梁

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1387141A (en) * 1972-01-13 1975-03-12 Kenyon & Sons Ltd William Method of fixing fire protective cladding to structural steel-work
EP0011358A1 (fr) * 1978-09-30 1980-05-28 Tac Construction Materials Limited Procédé pour attacher des panneaux à des poutres en acier
DE3036012A1 (de) * 1980-09-24 1982-05-06 Rudolf Hensel KG, 2000 Hamburg Brandschutz-isolierung
JPH0285336A (ja) * 1988-08-05 1990-03-26 Nippon Steel Corp ビルドアップ耐熱形鋼の製造方法
JPH08144393A (ja) * 1994-11-25 1996-06-04 Nkk Corp 耐火梁

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 280 (C - 0729) 18 June 1990 (1990-06-18) *
PATENT ABSTRACTS OF JAPAN vol. 96, no. 10 31 October 1996 (1996-10-31) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006044924A2 (fr) * 2004-10-19 2006-04-27 Henkel Corporation Entretoise conçue pour fixer un materiau de finition a des supports metalliques structurels et procede d'installation de ladite entretoise
WO2006044924A3 (fr) * 2004-10-19 2006-07-20 Henkel Corp Entretoise conçue pour fixer un materiau de finition a des supports metalliques structurels et procede d'installation de ladite entretoise
EP1782974A3 (fr) * 2005-11-08 2007-07-18 HÜBNER GmbH Intercommunication entre deux véhicules articulés comportant un plancher
WO2009073377A1 (fr) * 2007-12-06 2009-06-11 Ppg Industries Ohio, Inc. Bandes intumescentes pour protéger du feu une poutre structurale

Also Published As

Publication number Publication date
NL1003786C2 (nl) 1998-02-20

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