WO1981002816A1 - Etancheite contre le feu pour passages de conduites - Google Patents

Etancheite contre le feu pour passages de conduites Download PDF

Info

Publication number
WO1981002816A1
WO1981002816A1 PCT/SE1981/000083 SE8100083W WO8102816A1 WO 1981002816 A1 WO1981002816 A1 WO 1981002816A1 SE 8100083 W SE8100083 W SE 8100083W WO 8102816 A1 WO8102816 A1 WO 8102816A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
wall
foamed material
fastening element
fastening
Prior art date
Application number
PCT/SE1981/000083
Other languages
English (en)
Inventor
B Legerius
H Siebert
Original Assignee
Ericsson Telefon Ab L M
B Legerius
H Siebert
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 Ericsson Telefon Ab L M, B Legerius, H Siebert filed Critical Ericsson Telefon Ab L M
Priority to DE19813140616 priority Critical patent/DE3140616A1/de
Publication of WO1981002816A1 publication Critical patent/WO1981002816A1/fr
Priority to FI813588A priority patent/FI63308C/fi
Priority to DK504281A priority patent/DK504281A/da

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/04—Sealing to form a firebreak device
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings

Definitions

  • the present invention relates to fire sealing a lead-through for a conduit through a building member such as a cast concrete wall, roof or floor, or cast section thereof.
  • the building member can also consist of a relatively thin wall, for example, in a fireproof material such as steel, e.g. a vessel bulkhead.
  • a fireproof material such as steel, e.g. a vessel bulkhead.
  • the lead-through i.e. the hole in a wall or floor enabling the passage of electric cables, piping, ventilation; ducting or other installation components frcm one room to another always constitute a large risk in connection with fire.
  • These leads-through constitute obvious propagation paths for both smoke and flames. It is therefore often of decisive importance for fire safety that such a lead-through is sealed in a mode effectively preventing the propagation of both smoke and fire.
  • the lead-through is usually provided by leaving a recess in a wall or the like on casting concrete or laying the courses of a wall. Alternatively a passage can be cut in the ready-cast or laid wall. At a later building stage conduits are then taken through these leads-through, which are subsequently sealed against fire, i.e. the free space between the conduits and the wall of the lead-through is filled out with a fire resistant filling material.
  • a plastics moulding technique has therefore been taken up, which signifies that the cables or conduits are laid in the lead-through, the lead-through then being temporarily sealed with shuttering, and a fine resistant silicon is foamed in situ, in the Lead-through.
  • This technique is offered by Studsvik Energiteknik AB under the name I'Brandtatningssystem (Fire Sealing System) FC-225", where a silicon foam is utilized, which is commercially available under the name "Dow Corning 3-6548 RTV”.
  • FC-225 Silicon foam
  • a hole can be bored through a fire seal in an existing lead- through and after laying the cable, the annular gap-between hole and cable can be subsequently sealed.
  • the present invention relates to a special means for fire sealing a lead-throu for a conduit through a builcning member such as a cast wall, roof or floor or cast section thereof e.g. lightweight concrete blocks or wall modules or structural flooring from precast concrete or lightweight concrete units, whereby the above-mentioned di sadvantaces are considerably reduced or eliminated by the invention, and furthermore particular advantages are gained with regard to simplicity and economy in production, economic stock- kceping and sirr.ple and reliable application.
  • the invention furthermore enables a reliable fire seal during builc'ning also.
  • the means in accordance with the invention includes a prefabricated body with a tubular casing and an elastomeric fire retardant foamed material adapted in the casing, this material being compressed by the casing transverse the longitudinal axis of said casing, whereby the conduit is sealingly clamped in the foamed material by compression of the latter.
  • the fastening element can have different embodiments for adaption to the configuration of the fire sealing body. Attachment can take place by snapping the body into the fastening element, for example, but in a preferred embodiment where the casing is circular in cross section and provided with an external thread, the fastening element has an internal thread adapted to the external thread of the casing. The body can then be simply screwed into the fastening element, the amount to which it is screwed in psoviding adjustment to correct length in relation to the wall thickness.
  • the fastening element is provided with externally formed nailing channels, so that nails knocked in through the nailing channels accompany the wall when the shuttering is taken down.
  • the fastening element is formed with exterior coupling means whereby several elements can be coupled together in a row to simplify the assembly of several fire sealing bodies side-by-side.
  • Figure 1 is a section along the line I-I in Figure 2 of an embodiment of a fire sealing body.
  • Figure 2 is an endview of the body seen from the left in Figure 1.
  • Figure 3 illustrates in side view and in an exploded sketch the fitting of a fire sealing body between two shuttering walls.
  • Figure 4 is a section corresponding to the one in Figure 1 and showing the body in a'fitted position between two shuttering walls and after the shutterin has been filled with concrete.
  • Figure 5 is a plan view to a larger scale of a fastening element suitably formed for the fire sealing body according to Figures 1 and 2, for fixinq the body during casting, e.g. casting as illustrated in Figure 4.
  • Figure 6 is a section a'long the line VI-VI in Figure 5.
  • Ficure 7 is a section alon ⁇ the line VII-VII in Fi ⁇ ure 5.
  • Figures 8-11 are sections corresponding to Figure 4, but after taking away the shuttering; and in different work operations illustrates putting a cable through the body with the aid of a tool specially constructed for this purpose.
  • Figure 12 is a perspective view and to a larger scale of the head of a handle incorporated in the tool.
  • Figures 13 and 14 are perspective views of two different examples of fixing a fire sealing body in a previously made hole in a cast wall or building element, for example.
  • Figure 15 is a perspective view of the attachment of a fire sealing body in a thin wall of fireproof material such as steel.
  • Figures 1 and 2 illustrate the principle construciton of a fire sealing body, generally denoted by the numeral 1.
  • This consists of a casing 2, axially formed with a thread 3.
  • the casing 2 is formed so that there is an external as well as an internal thread.
  • the casing may consist of a thermoplastic such as polyethylene.
  • the interior of the casing from one end along a portion 3 thereof is filled with an elastic fire retardant foamed material 4, which is foamed in situ in the casing so that the cured foam is kept compressed by the casing.
  • the foamed material suitably comprises a silicon foam which is commercially available under the designation "Dow Corning 3-6548 RTV", this scum suitably being produced in situ in the casing 2.
  • the interior threads of the casing are also filled, which, apart from the casing holding the foar.ed material compressed transverse the axial direction of the casing, contributes to the retention of the foamed material and furthermore gives a decidedly better seal than if the inside of the casing were smooth.
  • one or more reinforcing nets can be set into the foamed r.aterial, partly to prevent the material from being broken off during subsequent cable laying (see Figures 8-11), and partly for enabling a sealing ar.-encerr.ent of a plurality of cables through the fire sealing body without brea'-.i ⁇ g up the material and fcrr.ing cracks in it.
  • the length 3a, filled with foamed material is adapted to the stipulations applicable for the fire seal in question, which have the form of a fire classification signifying a given minimum length, end electrical safety stipulations signifying given maximum length.
  • the fire sealing body 1 is produced with an unfilled portion 5 suitably having a length enabling the use of the fire sealing body for different current wall thicknesses.
  • the portion 5 can be easily cut, suitably with a saw, to the correct length, e.g. as illustrated in Figure 1, along the chain- dotted line 6.
  • Figures 3 and 4 illustrate how a fire sealing body is cast in between tw'o shuttering walls 7 and 8, the body having the principle embodiment illustrated in figures 1 and 2.
  • Figure 3 illustrates how a fastening frame generally denoted by the numeral 10 is attached by means of nails 9 to one shuttering wall 7, said frame having an embodiment such as is more closely described below with reference to Figures 5-7, i.e. it has, inter alia, an internal thread adapted to the thread 3 of the casing 2.
  • the body After cutting the body 1 to at least the approximate length, the body is fixed relative the shuttering wall 7 by being screwed into the attachment frame 10. By screwing-in to different depths, there is offered a possibility of adjustment with relation to wall thickness.
  • the shuttering wall 8 is subsequently erected and the shuttering pulled together, whereby the fire sealing body is clamped firmly between the shuttering walls.
  • Figure 4 illustrates the fire sealing body 1 with the fastening frame 10 after filling concrete 12 between the shuttering walls 7 and 8.
  • the body forms a gas-, fire-, watei — and sound-proof lead-through during the whole of the buiIding time, both before and after cable laying through it.
  • This frame comprises an annulary shaped wall 13, along the inside of which a thread is formed.
  • the latter comprises, in the illustrated embodiment, two straight and practically semi-circular ridges 14 and 15, the free ends of which do not meet, seen in plan view.
  • On the outside of the wall 13 there are arranged four diametrically opposing nail holes 16 for nailing the frame to the shuttering wall (wall 7 in Figures 3 and 4).
  • the nail holes 16 flare out in a direction towards the edge side of the frame wall 13 which is to engage against the shuttering wall.
  • each frame is provided with-locking means comprising a dovetail tongue 21, projecting from the surface of the fastening frame wall and situated between the buttons 20 and a complementally shaped, diametrically opposite slot 22.
  • Figures 8-11 illustrate different work operations in pulling a conduit through a fire sealing body after the shuttering has been taken down.
  • the body illustrated in exemplification corresponds to the body according to Figure and is illustrated cast into the concrete wall 23.
  • a special lead-through tool is used to obtain a sealed passage of the conduit. It co-prises three parts, a conical tip 24, a sleeve 25 and a handle 26 with a head 27, wh-Tch coact in a mode apparent from the following description.
  • the handle can press against the back end 29 of the sleeve with the handle in a position ⁇ s shown in Figure 8, there being in the head 27 of the handle an annularlyformed bottomning groove (see Figure 12) in which the sleeve end is inserted during penetration.
  • the head 27 shown in more detail in Figure 12
  • recesses 30 for hooking onto two of four heels or abutments 31 evenly distributed around the circumference of the sleeve 25 in the vicinity of the back end of the sleeve, through penetration of the tip 24 and sleeve 25 can take place, after such a hooking-on, and in an attitude which is angular relative to the sleeve for the handle 26, which can be valuable for more inaccessible places.
  • Figure 9 illustrates a position of the sleeve 25 after it has been pressed through the fire sealing body, and a conduit 32 has been pulled through the sleeve. Since the hole provided through the body is lines by the sleeve and thereby protected by it, the conduit can be pulled through the body without damaging the latter. As is shown, the sleeve is slit up at the ends 28, 29 to form tunnel-shaped openings, thus preventing the conduit from being jammed. as it is being pulled.
  • Figure 10 illustrates the withdrawal of the sleeve 25 from the foamed material after pulling the conduit is completed.
  • the sleeve is provided with said abutments 31 and the head portion 27 cf the handle with said recesses 30.
  • the four abutments 31, arranged around the circumference of the sleeve there is permitted an a 11 — round engagement between two abutments and the recesses, for good accessibility. Turning the sleeve to the most comfortable position is thus also permitted.
  • the recesses 30 are flared outwards so that the abutments 31 are also guided into the bottoms of the recesses for an angle within a relatively large angular range between the central axis of the handle and that of the sleeve, whereby there is also allowed a similarly large angular range between the handle and sleeve during withdrawal.
  • the sleeve must be removed from the conduit.
  • the sleeve is formed with perforation or other weakened stretch (not shown) extending between two opposing bottoms of the slit-up ends 28, 29. After cutting up this perforation, the sleeve can be opened out and removed from the cable.
  • the head 27 of the handle is specially adapted for use during this cutting.
  • the head On the back of the head 27, relative to the recesses 30, the head is provided with slitting-up portions (see Figure 12) each comprising a cutting edge 33, situated inside an outwardly rounded-off slide knob 34.
  • a positive engagement of the slitting-up portion of the head 27 is obtained in the slits at the sleeve ends 28, 29, between which the perforation extends, the slitting-up portion also being formed so that the handle can be kept within a large angular range relative the sleeve, e.g. 15-55°, for comfortable accessibility.
  • the accessibility furthermore increases by the head 27 being formed with two slitting-up portions, one behind each recess 30, which thus also increases the life of the handle.
  • the rounded-off slide knob 34 is adapted for preventing the cutting edge 33 damaging the conduit 32 during slitting-up.
  • Figure 11 illustrates the conduit 32 inserted in the lead-through after sleeve 25 is removed. Since no foamed material has been taken away, and the material has only been compressed, the foamed material 4 springs back elastically and a sealing closure of foamed material is obtained round the conduit.
  • the head 27 of the handle is more clearly shown in Figure 12, which illustrates the forming of recess 30, cutting edge 33 and slide knob 34.
  • the annular groove is further shown in the Figure, the end 29 of the sleeve 25 being inserted in said groove during pressing the tip 24 and sleeve 25 through the foamed material 4 of the body 1.
  • This groove is denoted by the numeral 35 in the Figure.
  • a groove 36 is also shown, defined by the side of the slide kncb 34 facing towards the recess 30 and a bottom wall, the lower edge shown in the Figure forming the cutting edge 33.
  • One of the slit-up edges is successively guided by this groove 36 during slitting-up of the sleeve 25.
  • Another alternative is to use a fire sealing body completely filled with foamed material, with a circular cross section and threaded casing.
  • a fire sealing body completely filled with foamed material, with a circular cross section and threaded casing.
  • FIG. 13-15 Other examples of fire sealing bodies, wholly or partially filled with foamed Immaterial, are shown in Figures 13-15, in Figures 13 and 14 there being shown bodies for attaching to a previously made hole in a wall or building element, and in Figure 15 there is shown a fire proof sealing body in a hole in a comparatively thin wall of material, e.g. a vessel bulkhead.
  • FIG 13 there is shown a part .of a wall or a building element 37 with a hole 38.
  • An exterior sleeve 39 of foamed material is moulded on a slit pipe 40, and further to the illustrated internal thread 41, this pipe can have an exterior thread, and suitably taper towards the edges of the slits.
  • the pipe 40 with sleeve 39 are inserted in the hole 38.
  • the slit tube 40 is forced against the outer sleeve 39 by expansion, the latter in turn pressing against the walls of the hole 38.
  • FIG 14 there is illustrated a wall or a building element 44 shown in a section through a hole provided with thread 45.
  • the thread 45 can be formed in a cast-in sleeve, or formed in the material itself with certain wall materials.
  • a lead-through body comprises two halves 46 and 47, semi-circular in cross section, with a mantle having an exterior thread 48 and to advantage an internal thread also, as illustrated and with grooves 49, semi- circular in cress section.
  • the halves 46 and 47 for example those illustrated, are filled for their entire length with foamed material 4, are pressed onto a conduit 50 and squeezed against each other, whereafter the assembled halves are threaded into the hole provided with thread 45.
  • This embodiment of a fire sealing body is intended for a single conduit, specially of heavy dimensions, and is particularly utilizable for conduits which cannot be pulled through the foamed material of a fire sealing body because the conduit is provided with some projecting connection, for example.
  • Another alternative is to have a slit-up lead-through body instead of two- separate halves 46, 47.
  • FIG. 15 there is illustrated a lead-through body 51 with a casing provided with an exterior thread 52 and preferably an inner thread also, the casing enclosing a foamed material 4 in a customary manner.
  • the lead-through body is threaded through fastening pieces 54 provided with internal threads 53, said fastening pieces being previously fastened on either side of a wall 55 with the collars or flanges 56 of the fastening pieces sealingly surrounding a hole 55 made through the wall.
  • the body can be divided into halves or slit-up similar to what has been shown and described with reference to the embodiment according to Figure 14.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Building Environments (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

Corps (1) prefabrique pour passages etanches au feu pour une ou plusieurs conduites (32) par exemple du travers d'une paroi. Le corps comprend un boitier (2) a l'interieur duquel est dispose un materiau (4) elastique de mousse retardant le feu, ce materiau a l'interieur du boitier etant comprime transversalement par rapport a l'axe longitudinal et constituant une etancheite autour de la (ou des) conduite (s). Pendant le moulage de l'element de construction, une extremite du boitier est fixee a un element de fixation (10) attache a une paroi contigue de coffrage (7). L'element de fixation demeure dans l'element de construction apres la depose de la paroi de coffrage.
PCT/SE1981/000083 1980-03-14 1981-03-13 Etancheite contre le feu pour passages de conduites WO1981002816A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19813140616 DE3140616A1 (de) 1980-03-14 1981-03-13 Fire sealing of leads-through for conduits
FI813588A FI63308C (fi) 1980-03-14 1981-11-12 Brandtaetning av genomfoering foer ledning
DK504281A DK504281A (da) 1980-03-14 1981-11-13 Er brandforsegling eller taetning af gennemfoeringer for ledning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8002046A SE420785B (sv) 1980-03-14 1980-03-14 Anordning for brandtetning av en genomforing for atminstone en ledning genom ett byggnadselement
SE8002046 1980-03-14

Publications (1)

Publication Number Publication Date
WO1981002816A1 true WO1981002816A1 (fr) 1981-10-01

Family

ID=20340525

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1981/000083 WO1981002816A1 (fr) 1980-03-14 1981-03-13 Etancheite contre le feu pour passages de conduites

Country Status (6)

Country Link
DK (1) DK504281A (fr)
FI (1) FI63308C (fr)
FR (1) FR2477890A1 (fr)
NO (1) NO813751L (fr)
SE (1) SE420785B (fr)
WO (1) WO1981002816A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162218A (en) * 1984-07-21 1986-01-29 Nottingham County Council Distribution device for one or more utilities
EP0246219A1 (fr) * 1986-05-15 1987-11-19 "Poloplast" Kunststoffwerk der Knoch, Kern & Co., OHG Passage pour tuyau
EP1780456A3 (fr) * 2005-10-27 2008-10-01 HILTI Aktiengesellschaft Dispositif pour être moulé dans un mur, pour le passage de conduits
DE202017104948U1 (de) * 2017-08-17 2018-11-20 Doyma Gmbh & Co Vorrichtung zum Durchführen einer Leitung durch eine Bodenplatte und Bodenplatte für ein Gebäude

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198624B (de) * 1960-12-15 1965-08-12 Anton Jensen & Co As A S F Bue Futterrohr aus thermoplastischem Kunststoff zum Durchfuehren von Rohrleitungen durch Bauwerkswaende
DE2414687A1 (de) * 1974-03-27 1975-10-02 August Reusing Vorrichtung zur kabeldurchfuehrung
GB1485621A (en) * 1974-07-24 1977-09-14 Oates M Electrical wiring
SE412795B (sv) * 1978-09-15 1980-03-17 Studsvik Energiteknik Ab Forfarande och medel for brandtetning av en genomforing for en ledning
SE416253B (sv) * 1978-09-15 1980-12-08 Studsvik Energiteknik Ab Verktyg for tredning av en ledning genom en kropp av elastiskt skummaterial

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2414113A1 (de) * 1974-03-23 1975-10-09 Hauff Technik Kg Dichte wanddurchfuehrung fuer kabel, leitungen oder dgl.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198624B (de) * 1960-12-15 1965-08-12 Anton Jensen & Co As A S F Bue Futterrohr aus thermoplastischem Kunststoff zum Durchfuehren von Rohrleitungen durch Bauwerkswaende
DE2414687A1 (de) * 1974-03-27 1975-10-02 August Reusing Vorrichtung zur kabeldurchfuehrung
GB1485621A (en) * 1974-07-24 1977-09-14 Oates M Electrical wiring
SE412795B (sv) * 1978-09-15 1980-03-17 Studsvik Energiteknik Ab Forfarande och medel for brandtetning av en genomforing for en ledning
SE416253B (sv) * 1978-09-15 1980-12-08 Studsvik Energiteknik Ab Verktyg for tredning av en ledning genom en kropp av elastiskt skummaterial

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162218A (en) * 1984-07-21 1986-01-29 Nottingham County Council Distribution device for one or more utilities
EP0246219A1 (fr) * 1986-05-15 1987-11-19 "Poloplast" Kunststoffwerk der Knoch, Kern & Co., OHG Passage pour tuyau
EP1780456A3 (fr) * 2005-10-27 2008-10-01 HILTI Aktiengesellschaft Dispositif pour être moulé dans un mur, pour le passage de conduits
KR101354220B1 (ko) 2005-10-27 2014-01-22 힐티 악티엔게젤샤프트 도관의 통과를 위한 주조부품
DE202017104948U1 (de) * 2017-08-17 2018-11-20 Doyma Gmbh & Co Vorrichtung zum Durchführen einer Leitung durch eine Bodenplatte und Bodenplatte für ein Gebäude

Also Published As

Publication number Publication date
FR2477890A1 (fr) 1981-09-18
SE420785B (sv) 1981-10-26
NO813751L (no) 1981-11-05
SE8002046L (sv) 1981-09-15
FI813588L (fi) 1981-11-12
FI63308C (fi) 1983-05-10
DK504281A (da) 1981-11-13
FI63308B (fi) 1983-01-31

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