EP0152881B1 - Structure de porte de sécurité - Google Patents

Structure de porte de sécurité Download PDF

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Publication number
EP0152881B1
EP0152881B1 EP19850101347 EP85101347A EP0152881B1 EP 0152881 B1 EP0152881 B1 EP 0152881B1 EP 19850101347 EP19850101347 EP 19850101347 EP 85101347 A EP85101347 A EP 85101347A EP 0152881 B1 EP0152881 B1 EP 0152881B1
Authority
EP
European Patent Office
Prior art keywords
door
frame
rearward
layer
timber
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
EP19850101347
Other languages
German (de)
English (en)
Other versions
EP0152881A3 (en
EP0152881A2 (fr
Inventor
Darryl William Bowden
David Simpson Firth
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.)
Chubb Security Projects Pty Ltd
Original Assignee
Chubb Security Projects Pty Ltd
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
Priority claimed from GB848403628A external-priority patent/GB8403628D0/en
Priority claimed from GB848415743A external-priority patent/GB8415743D0/en
Application filed by Chubb Security Projects Pty Ltd filed Critical Chubb Security Projects Pty Ltd
Priority to AT85101347T priority Critical patent/ATE36889T1/de
Publication of EP0152881A2 publication Critical patent/EP0152881A2/fr
Publication of EP0152881A3 publication Critical patent/EP0152881A3/en
Application granted granted Critical
Publication of EP0152881B1 publication Critical patent/EP0152881B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/12—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against air pressure, explosion, or gas
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/02—Details
    • E05G1/024—Wall or panel structure

Definitions

  • the present invention relates to security door assemblies and aims in particular to provide a structure having a high degree of resistance to penetration by the action of explosive charges applied to the outer surface of the door.
  • Assemblies in accordance with the invention are intended especially for use in the protection of entrances to buildings or other fixed constructions which are liable to come under explosive attack at the hands of burglars or saboteurs for example.
  • the prior art provides many barrier structures intended for use in, for example, the doors of bank vaults and the like security enclosures, which are designed to provide a high degree of resistance to penetration with drills, punches, flame-cutting equipment and other mechanical and thermal tools commonly appropriated by burglars.
  • the materials and modes of construction employed in these structures are not well suited to resist the effects of high-explosive surface charges of even modest proportions. It is to the provision of structures providing protection from this kind of attack that the invention is principally directed, it being recognised that there is currently a demand for the protection of various kinds of building from explosive attacks which may be mounted not with burglarious intent but with the aim simply of causing damage to the structure and its concents or occupants.
  • a security door assembly comprising: a door frame defining a doorway; an explosion- resistant door mounted to the frame to close the doorway; and means for fastening the door to the frame in the closed position; said door comprising a rearward portion providing a physical barrier between the two sides of the doorway; a forward portion spaced from the rearward portion and providing the exposed face of the door; and a layer of timber located between said forward and rearward portions arranged to protect said rearward portion from the effects of an explosive charge detonated at or near to said exposed surface; characterised in that said forward portion of the door is mounted by means which enable it to become detached from the remainder of the door structure under the influence of an outward force exerted upon it by the transmission into the door of the blast pressure of a said explosive charge, and said fastening means are arranged to enable the rearward portion of the door to remain
  • the purpose of the aforesaid timber layer in the door is to act as a shock absorber to protect the structure behind it from blast effects and also as a thermal insulator to reduce the transmission of heat to the structure behind it, so that the rearward portion of the door can be protected from the influence of an explosion occurring at or near to the exposed surface of the door, and retain its integrity as a physical barrier notwithstanding the partial destruction, detachment or breaching of the portions of the structure in front of it.
  • the use of timber for shock resistance in a bomb shelter door is known eg from US-A-3093098.
  • the forward portion of the door need comprise little more than an outer finishing layer, e.g. a steel sheet, although in some embodiments this area of the structure may be developed to still further enhance resistance to explosive attacks or for other special purposes.
  • this forward portion of the door is suitably mounted, such as by means of rivets, to facilitate its detachment from the remainder of the door structure under the influence of an outward force exerted on it by the transmission into the door of the blast pressure of an explosive charge detonated at or near to the exposed surface of the door.
  • This detachment of the forward portion if it is breached by an explosion serves to dissipate the effects of the explosion and to allow the blast to be spread over a larger area of the timber layer than might be the case if the forward portion remained rigidly secured to the rest of the structure.
  • the timber layer is therefore protected from a concentration of the blast in a relatively small area and may thus be better able to absorb its effects.
  • the aforesaid rearward portion of the door will be constructed with materials chosen for resistance to penetration by the different kinds of tools likely to be found in thieves' armoury.
  • the rearward portion may be of relatively simple construction sufficient for the purpose of providing a chosen degree of separation between the two sides of the doorway (presupposing that the forward and intermediate portions of the door might be breached by an explosive attack).
  • the door A comprises an internal frame 1 fabricated from tubular steel sections.
  • Steel front plate 2 is mounted on frame 1 on one side thereof by means of rivets 3 in a manner to permit front plate 2 to become detached relatively easily from frame 1 by outward force exerted in the direction of arrow X on the inner surface 2a of front plate 2.
  • Front plate 2 provides the outer, exposed face of the door.
  • Steel back plate 2 is welded to frame 1 on the side opposite to front plate 2 to provide a compartment between front plate 2 and back plate 4.
  • a layer of timber 5 is disposed in this compartment between front plate 2 and back plate 4. It will be seen that front plate 2 is stood-off some distance from the intermediate layer of timber 5 to provide an air space 6 between front plate 2 and the timber 5.
  • the blast pressure effects resulting from the explosion are dispersed in air space 6 over a large area of the timber layer 5, thereby to avoid or minimise a concentration of pressure on a relatively small area of the timber. If a sufficient pressure force is exerted on the inner face of front plate 2 in the direction of arrow X in Figures 1 and 2, the rivets 3 will give to permit front plate 2 to be blown off the frame 1, thereby further to dissipate the blast and minimise its destructive effect on the timber layer 5.
  • Timber layer 5 confers resistance to an explosive attack upon the door by acting to absorb physical shock and to reduce the transmission of heat through the door to the steel back plate 4 behind it.
  • a suitable fastening mechanism comprising, for example, bolts (not shown) to be thrown into the frame B through the opening side edge of the door in response to manipulation of an external handle 8, together with fixed stud bolts 9 on the hinge side edge of the door.
  • a test door was constructed generally in accordance with Figures 1 to 3 hereof and having the following characteristics: plate 2 was 3 mm thick mild steel; plate 4 was 10 mm thick mild steel; the frame sections 1 were 50 mm square, 2.5 mm wall thickness steel tube; the internal space between the plates 2 and 4 was 50 mm deep; and the timber layer 5 comprised 40 mm thick maranti boards.
  • This specimen was mounted in a typical frame and a limpet mine having a charge of 0.95 kg of Tritanol explosive was applied to the surface of plate 2. When the charge was detonated the plate 2 was blown off and the timber 5 fell out, but the plate 4 attached to sections 1 remained intact and bolted to its frame, with some plastic deformation, so that the barrier as a whole was not breached.
  • FIGS 5 and 6 show a barrier structure for incorporation into a blast-resistant door which may withstand rather heavier charges than those of Figures 1 to 4 and which, in the illustrated embodiment, is designed also to be fire resistant.
  • the barrier comprises essentially a double box-like structure.
  • One "box” is composed of a steel plate 11-which provides the outer face of the structure-attached to an intermediate steel plate 12 via framing sections 13, and stiffened by horizontal angles 14.
  • the other "box” is composed of a steel back plate 15 welded to the plate 12 via framing sections 16 and horizontal stringers 17.
  • Within the first of these compartments there is a layer of timber 18 fronted by a layer of kieselguhr (diatomaceous earth) 19.
  • the rearward compartment between plates 12 and 15 will house a driving and locking mechanism (not shown) to throw door bolts into an associated frame, or alternatively the door may be locked by bolts thrown into engagement with sockets in the door (at the positions indicated at 20 in Figure 1) from a mechanism housed in the associated frame.
  • a driving and locking mechanism (not shown) to throw door bolts into an associated frame, or alternatively the door may be locked by bolts thrown into engagement with sockets in the door (at the positions indicated at 20 in Figure 1) from a mechanism housed in the associated frame.
  • the purpose of the timber layer 8 in this structure is, as before, to confer resistance to an explosive attack upon the door by acting to absorb physical shock and to reduce the transmission of heat through the door to the steel behind it. To demonstrate the efficacy of this type of structure the following test was conducted.
  • a test specimen was constructed substantially in accordance with Figures 5 and 6 hereof and having the following characteristics: the overall thickness of the structure was 273 mm; plate 11 was 3 mm thick mild steel; plate 12 was 20 mm thick mild steel; plate 15 was 10 mm thick mild steel; the timber layer 18 was composed of 40 mm thick maranti planks; and the kieselguhr layer 19 was 100 mm thick.
  • the specimen was supported in a rig to simulate its mounting to the associated door frame and a 3.33 kg charge of type PE4 (cyclonite-based) plastic explosive (equivalent to about 5 kg of dynamite) was applied to the surface of plate 11.
  • type PE4 cyclonite-based plastic explosive
  • the kieselguhr layer 19 is provided to confer general fire resistance to the structure, and is not thought to make a significant contribution to blast resistance of itself. By replacing the layer 19 in this structure with further timber, therefore, resistance to even heavier charges of explosive may be obtained.
  • EP-A-0152880 in which the claims relateto a security door with liquid filled receptacles, rather than a layer of timber, between the forward and rearward portions of the door.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Special Wing (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Claims (7)

1. Structure de porte de sécurité comprenant: un cadre de porte (B) définissant un passage; une porte résistant à l'explosion (A) montée dans le cadre (B) pour fermer le passage; et des moyens (9) pour fixer la porte (A) au cadre (B) dans la position fermée; ladite porte comprenant une partie arrière (4, 12/15) constituant une barrière physique entre les deux côtés du passage; une partie avant (2, 11) espacée de la partie arrière (4, 12/15) et constituant la face exposée de la porte; et une couche de bois (4,5a/5b, 18) disposée entre lesdites parties avant (2, 11) et arrière (4, 12/15) et agencée de façon à protéger ladite partie arrière (4, 12/15) des effets d'une charge explosive explosant contre au près de ladite surface exposée; caractérisée en ce que ladite partie avant (2, 11) de la porte est montée par des moyens (3) qui lui permettent d'être détachée du reste de la structure de la porte sous l'influence d'une force dirigée vers l'extérieur exercée sur elle par la transmission, à l'intérieur de la porte, de la pression de souffle de ladite charge explosive, et en ce que lesdits moyens de fixation (9) sont arrangés pour permettre à la partie arrière (4, 12/15) de la porte de demeurer fixée au cadre (B) après que la partie avant (2, 11) ait été détachée comme on l'a indiqué plus haut.
2. Structure suivant la revendication 1, dans laquelle la porte présente un volume d'air intérieur (6) défini entre ladite partie avant (2) et ladite couche de bois (5).
3. Structure suivant la revendication 1 ou la revendication 2, dans laquelle ladite partie avant de la porte est constituée par une première plaque d'acier (2), ladite partie arrière de la porte est constituée par une seconde plaque d'acier (4), et lesdites première (2) et seconde (4) plaques d'acier sont reliées, à leur périphérie, par un cadre intérieur (1) en acier.
4. Structure suivant l'une ou l'autre des revendications précédentes, dans laquelle il est prévu, dans la porte vers l'arrière par rapport à ladite couche de bois (5, 5a/5b, 18), une ou plusieurs couches de matériau résistant à la pénétration d'outils de cambriolage non explosifs.
5. Structure suivant l'une ou l'autre des revendications précédentes, dans laquelle il est prévu, dans la porte vers l'avant par rapport à ladite couche de bois (18), une couche de matériau résistant au feu (19).
6. Structure suivant l'une ou l'autre des revendications précédentes, dans laquelle la porte comprend un compartiment antérieur défini entre une plaque avant (11) et une plaque intermédiaire
(12), et un compartiment postérieur défini entre ladite plaque intermédiaire (12) et une plaque arrière (15); ledit compartiment antérieur contenant ladite couche de bois (18) et ledit compartiment postérieur accueillant lesdits moyens de fixation.
EP19850101347 1984-02-11 1985-02-08 Structure de porte de sécurité Expired EP0152881B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101347T ATE36889T1 (de) 1984-02-11 1985-02-08 Sicherheitstuer.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB848403628A GB8403628D0 (en) 1984-02-11 1984-02-11 Security barrier structure
GB8403628 1984-02-11
GB848415743A GB8415743D0 (en) 1984-06-20 1984-06-20 Security barrier structure
GB8415743 1984-06-20
ZA8410035 1984-12-21
ZA8410035 1984-12-21

Publications (3)

Publication Number Publication Date
EP0152881A2 EP0152881A2 (fr) 1985-08-28
EP0152881A3 EP0152881A3 (en) 1986-05-28
EP0152881B1 true EP0152881B1 (fr) 1988-08-31

Family

ID=27262278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850101347 Expired EP0152881B1 (fr) 1984-02-11 1985-02-08 Structure de porte de sécurité

Country Status (4)

Country Link
EP (1) EP0152881B1 (fr)
AU (1) AU3859985A (fr)
DE (1) DE3564718D1 (fr)
GB (1) GB2154639B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237835B (en) * 1989-10-31 1994-06-01 Manchester City Council A security door
FR2658847A1 (fr) * 1990-02-23 1991-08-30 Somenor Sa Paroi destinee a supporter de brusques variations de pression et procede de construction de cette paroi.
GB9423343D0 (en) * 1994-11-18 1995-01-18 Henry Brothers Magherafelt Lim Blast resistant building structures
GB9526398D0 (en) * 1995-12-22 1996-02-21 Kovacs Laurence K Improvements in or relating to fire resisting doors
GB0015927D0 (en) * 2000-06-30 2000-08-23 Door Panels Plc Door panel
FR2870880B1 (fr) * 2004-05-28 2006-07-21 Mineur Becourt Systemes Porte anti-souffle et coupe-feu
US8707625B2 (en) * 2011-06-28 2014-04-29 Dan Raz Ltd. Arrangement for securing a panel closure
CN107923197A (zh) 2015-08-24 2018-04-17 丹拉斯有限公司 用于滑动板体的固定机构
IL241392B (en) 2015-09-09 2021-05-31 Dan Raz Ltd Door with additional integration on the side of the hinge
US9970214B2 (en) 2015-11-29 2018-05-15 Dan Raz Ltd Door or other closable panel with lock-actuating linkage
US9988830B2 (en) 2016-03-03 2018-06-05 Dan Raz Ltd. Latch arrangement having a handle
US10487545B2 (en) 2016-03-03 2019-11-26 Dan Raz Ltd. Latch arrangement having a stop latch
CN106593224B (zh) * 2016-11-22 2018-08-17 重庆欧帆门业有限公司 防冲撞木门
US11598125B2 (en) 2017-09-03 2023-03-07 Dan Raz Ltd. Latch arrangement
CN108412370B (zh) * 2018-02-07 2019-11-29 安徽忠盛新型装饰材料有限公司 一种拼装式雕花木门窗及其拼装工艺
CN113250593A (zh) * 2021-04-26 2021-08-13 赵学兰 一种防爆式人防门

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE135849C (fr) *
GB509358A (en) * 1937-04-15 1939-07-14 Hugo Morawetz Improvements in or relating to doors, panels and like structures, provided with edging strips
GB505523A (en) * 1938-04-21 1939-05-12 Wilhelm Zanzinger Improvements in doors
US3093098A (en) * 1961-11-24 1963-06-11 Morton M Rosenfeld Door structure for bomb shelter
DE2639691C3 (de) * 1976-09-03 1981-01-08 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Schutztür
DE2740194A1 (de) * 1977-09-07 1979-03-08 Sommer Metallbau Stahlbau Gmbh Tuer-zargen-anordnung
AT370204B (de) * 1979-12-18 1983-03-10 Hamerle Vinzenz Ing Mehrschichtige, beschussfeste panzerung fuer fenster und tueren
DE8224631U1 (de) * 1982-09-01 1982-12-02 Sälzer, Heinrich, 3550 Marburg Einbruch- und durchschusshemmend ausgebildete stahltuer fuer bauwerksoeffnungen

Also Published As

Publication number Publication date
EP0152881A3 (en) 1986-05-28
EP0152881A2 (fr) 1985-08-28
GB2154639B (en) 1987-06-03
AU3859985A (en) 1985-08-15
DE3564718D1 (en) 1988-10-06
GB8503134D0 (en) 1985-03-13
GB2154639A (en) 1985-09-11

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