US3191728A - Metal panel and its application in an anti-blast barrier in particular for air-ports - Google Patents

Metal panel and its application in an anti-blast barrier in particular for air-ports Download PDF

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Publication number
US3191728A
US3191728A US162433A US16243361A US3191728A US 3191728 A US3191728 A US 3191728A US 162433 A US162433 A US 162433A US 16243361 A US16243361 A US 16243361A US 3191728 A US3191728 A US 3191728A
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United States
Prior art keywords
panel
portions
barrier
plane
elements
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Expired - Lifetime
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US162433A
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English (en)
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David Louis Fernand
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/42—Gratings; Grid-like panels
    • E04C2/427—Expanded metal or other monolithic gratings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/26—Ground or aircraft-carrier-deck installations for reducing engine or jet noise; Protecting airports from jet erosion
    • 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

Definitions

  • the panel comprises identical elements each oi which elements consists ol a metal strip, such as a metal band or sheet, flat plate, this strip being expanded, the expansion being achieved by forming therein longitudinal slits and press-forming in a direction perpendicular to the place of the strip in opposite directions the two portions of the strip separated by said slit so as to form openings having a surface perpendicular to the plane of the strip, said openings having a diamond or like shape and the panel cornprising such elements disposed in the saine direction in such manner that the mean planes of their unpressed portions are disposed in planes which are parallel and separated by the width of said openings, two consecutive elements being in Contact along their outer edges at points located at the apex of the pressed portions and being welded together at these points.
  • all the slits are disposed along the median axis of the strip, have the sarne length and are disposed a regular distance apart.
  • a strip 50 mm. wide is used (for example a flat iron plate 50 mm. wide and 4 mm. thick) and openings are formed therein, having a length of 4() mm. in the direction perpendicular to the plane of the strip, the angle a would be about 40.
  • r'hese panels possess between the elements separation gaps having a rectangular middle portion and two triangular end portions.
  • This panel has the advantage of being apertured to a large extent and yet possesses very great rigidity owing to its overall thickness, that is, the distance between the two parallel planes containing the two faces of the panel.
  • the deiiecting surfaces of said strips are greater in area than the openings between said strips.
  • this panel could be used in the iields of protection and ventilation and in Venetian shutters. In the hydraulic fields, it could be used also as,
  • a iluid calming grid or a mud separator' for example, a iluid calming grid or a mud separator'.
  • a particularly interesting application resides in the use of the panel as an air current rectier or changer, in particular in anti-blast barriers for air-ports and as wind shields on the flight decks of aircraft carriers.
  • jet engines of aircraft operating in the aircraft parking areas produce high-speed jets or streams of gas which could inconvenience the personnel and passengers and could even be dangerous.
  • the object of the present invention is to provide a barrier which permits upwardly deilecting the gas stream issuing from a jet engine so that this stream no longer constitutes an inconvenience for the ground personnel who are shielded from the iet engine by this barrier even should the aircraft be located at a short distance, for example about l5 metres, from the barrier in a direction perpendicular to the latter.
  • Another object of the invention is to provide a barrier which not only has the aforementioned advantage but also allows a certain mean visibility therethrough.
  • rlhe barrier comprises panels composed of an assembly of elements consisting of expanded strips of the aforementioned type, said panels being disposed in such manner that the longitudinal sides of the elements are horizontal, said elements being inclined at an angle a relative to the general plane o the panel, and the panel being itself inclined at a certain angle b relative to the ground, whereby the elements have an inclination a-l-b relative to the ground so that the gas stream from the jet engine is deflected upwardly through the openings and the gaps formed between the elements.
  • the angle that the elements make with the horizontal plane is slightly obtuse. Angles between and have given good results.
  • FIG. l is a side elevational View of a panel element disposed horizontally
  • FlG. 2 is a plan view of this element
  • FIG. 3 is a sectional view of this element taken along line 3 3 of FlG. 2;
  • FlG. 4 is a plan View of a portion of a panel according to the invention having three elements of the type shown in FIGS. 1 3;
  • FIG. 5 is a sectional view orthis panel taken along line S-S of FG. 4;
  • FlG. 6 is a side elevational view of an anti-blast barriet used as protection from the gas stream issuing from a jet engine;
  • FIG. 7 is an elevational View of this barrier and its base structure
  • FIG, 8 is a plan view of the barrier and base structure.
  • ythe panel of the invention comprises metal elements such as l consisting of a metal strip, such as a metal band, at plate or sheet having aV width L and an optional length,
  • This strip has openings 2 spaced a regular distance apart and optained by forming in the Strip and preferably along the median axis thereof rectilinear longitudinally extending slits such as AB, the other slits such as A1, B1 being on the same line as the slit AB but separated from the latter by intervals of intermediate plane portions 3 of constant length such as ABI, BA2
  • a slit such as AB has therefore two lips or sides l and 5 constituted by the two halves of the strip.
  • each of these E3 lips is formed or pressed in opposite directions perpenI dicular to the plane of the strip, the lip 4 being for example pressed so as to project upwardly of the plane of.
  • FIG. 2 and the lip 5 being pressed in the same shape but in a direction to project downwardly from the other side of the strip.
  • These press-formed portions could be bent or folded as shown in FIG. 1 'and have apices or corners 4a, 5a, but they could also have a shape which is substantially curved, or the corners 4a, 5a could be replaced by fiat portions of short length.
  • the opening 2 shown in FIG. 3 and which will be assumed to have a diamond shape hereinafter, could therefore have a shape slightly different from a geometric rhombus, the portions 3 separating these openings being flat.
  • contour of a diamond such as the diamond 2 is projected on the FIG. 2 along the line A-B, that is, this contour is in the longitudinal median plane perpendicular to the plane of the strip.
  • the panel has great rigidity despite a large proportion of apertures constituted by the diamonds 2 and the gaps 9 between the elements, since the area of the panel is greater than the area of the openings therein.
  • FIG. 6 shows a particular application of the invention to an anti-blast barrier 11 provided at an air-port as protection against the gas streams issuing from jet engines, these streams being designated by the reference letter J (FIG. 6) and moving in the direction of arrow f1.
  • This anti-blast barrier comprises an assembly of panels according to the invention having such height that the barrier has a vertical height sufficient to protect the passengers and personnel from the gas streams. In most cases a height of about 1.50 m. above the ground is sufficient, but it will be understood that this height can be modified to suit particular requirements and in particular to suit the height of the jet engines above the ground.
  • These panels have a horizontal length compatible with the possibilities of manufacture and the barrier has a sufficient number of panels for the length of the region to be protected.
  • This barrier is downwardly inclined relative to the direction f1 of the gas stream at an angle b with respect to a horizontal plane.
  • This angle b is preferably about 60.
  • the inclination of the elements relative to the plane of the barrier can vary between certain limits. It has been found easy to produce panels having an inclination of about 40. Consequently the at portions 3 (or air-deflecting bars) of the strips have an inclination which is about 100 relative to the direction of the gas stream.
  • the barrier consists 0f a suitable number ⁇ of barrier sections each of which comprises a panel such as P1, P2 of the type described hereinbefore.
  • This panel could, for example, have a height of about 1.15 m. and a width of about 1.20 m.; each strip could have, for example, 3 diamond-shape openings.
  • the pitch that is, the distance between consecutive parallel elements could be about 70 mm.
  • the adjacent panels are interconnected by flat metal strips such as M1 (FIG. 7) and the end edges of the barrier are secured to U-section members M2, M3, welded at their base to U-section members such as M4, M5, MG
  • FIGS. 1-5 Although specific embodiments of the invention have been shown in FIGS. 1-5, and specific applications thereof have been shown in FIGS. 6-8, many modifications and changes may be made therein without departing from the scope of the invention as defined in the appended claim.
  • a panel for an air blast barrier comprising a series of elongated strips, each ⁇ strip having a mean plane and a mean longitudinal axis, the longitudinal axes of said strips being parallel and lying in a common plane which is the median plane of said panel, each strip further having a series of longitudinally extending first portions offset from said mean plane, and a series of longitudinally extending second portions aligned with said iirst portions transversely of said strip and offset from said mean plane ina direction opposite to that of said first offset portions, said oppositely offset portions constituting offset pairs, said pairs being separated by intermediate plane portions in the longitudinal direction of said strips, each of said offset portions of each pair having an inner edge and an outer edge, the inner edge'of each rst portion of the pairs defining with the corresponding inner edge of the second portion of said pairs an opening in a plane substantially perpendicular to the plane of said intermediate plane portions, said strips being so disposed in the panel that said intermediate plane portions are parallel with each other and are inclined relative to said median plane, the outer edge of the

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Exhaust Silencers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Toys (AREA)
US162433A 1960-12-29 1961-12-27 Metal panel and its application in an anti-blast barrier in particular for air-ports Expired - Lifetime US3191728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR848360A FR1283981A (fr) 1960-12-29 1960-12-29 Panneau métallique et son application à une barrière anti-souffle, notamment pouraéroports

Publications (1)

Publication Number Publication Date
US3191728A true US3191728A (en) 1965-06-29

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US162433A Expired - Lifetime US3191728A (en) 1960-12-29 1961-12-27 Metal panel and its application in an anti-blast barrier in particular for air-ports

Country Status (6)

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US (1) US3191728A (de)
BE (1) BE611958A (de)
CH (1) CH395752A (de)
DE (2) DE1913483U (de)
FR (1) FR1283981A (de)
GB (1) GB967370A (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260026A (en) * 1964-02-24 1966-07-12 Alcan Aluminum Corp Solar screen
US3287873A (en) * 1964-01-20 1966-11-29 Mcdaill Laura Light regulating panel screen
US3308597A (en) * 1964-01-03 1967-03-14 Union Carbide Corp Grid-like article and apparatus for and method of making same
US3797787A (en) * 1971-04-17 1974-03-19 Nippon Steel Corp Jet engine blast fence
FR2343873A1 (fr) * 1976-03-12 1977-10-07 Clement Louis Procede et elements pour la prefabrication des grilles ornementales utilisees en ferronnerie et en serrurerie
US4893569A (en) * 1986-03-24 1990-01-16 Hansen Arne H Safety wall and a safety cage for tire inflation
US5591904A (en) * 1993-10-21 1997-01-07 Rheinhold & Mahla Ag Apparatus for diminishing intake vortexes in jet engines
US6015244A (en) * 1997-10-01 2000-01-18 Storm Diverter Corporation Wind directing sea wall
EP2258892A1 (de) * 2009-06-05 2010-12-08 Trenzametal, S.L. Falsches Taftgewebe mit einstückiger Kette aus Mettal- oder Kunststoffplatte
US20110042512A1 (en) * 2006-05-23 2011-02-24 University Of Virginia Patent Foundation Method and Apparatus for Jet Blast Deflection
US20110048219A1 (en) * 2007-11-13 2011-03-03 Pyles Robert A Blast-resistant barrier
US9417038B2 (en) 2012-08-29 2016-08-16 Covestro Llc Energy absorber for high-performance blast barrier system
CN105937272A (zh) * 2016-06-21 2016-09-14 沈阳建筑大学 单侧大变形抗裂防爆板
US9879474B2 (en) 2014-05-06 2018-01-30 Covestro Llc Polycarbonate based rapid deployment cover system
US20190024985A1 (en) * 2010-01-14 2019-01-24 University Of Virginia Patent Foundation Multifunctional thermal management system and related method
US10408576B2 (en) 2008-10-27 2019-09-10 Plaskolite Massachusetts, Llc High-energy impact absorbing polycarbonate mounting method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3023707C2 (de) * 1980-06-25 1987-03-26 Rheinhold & Mahla GmbH, 8000 München Schutzanlage zur Schalldämpfung und Ablenkung großer Gasströme
GB8601819D0 (en) * 1986-01-25 1986-02-26 Press Bat Holdings Ltd Structural keying means
DE9011669U1 (de) * 1990-08-10 1990-10-18 Ruhrtaler Stahl- u. Behälterbau GmbH, 4600 Dortmund Windschutzgitter
DE19541597A1 (de) * 1995-11-08 1997-05-15 Manfred Wanzke Belagplatte zur Verkleidung von Decken und Wänden

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1556063A (en) * 1921-12-24 1925-10-06 Dauchy Iron Works Grating
US2350412A (en) * 1941-09-04 1944-06-06 Apex Railway Products Co Reticulated metal walkway and method of producing same
US2726830A (en) * 1953-06-11 1955-12-13 Armco Steel Corp Blast fence for jet engines
US2826382A (en) * 1953-03-06 1958-03-11 Boeing Co Jet engine exhaust deflector
US3072230A (en) * 1960-06-20 1963-01-08 Northrop Architectural Systems Screen wall construction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB603186A (en) * 1945-01-11 1948-06-10 Harold Warp Improvements in or relating to louvered insect-barring screen material
CH257165A (de) * 1946-08-21 1948-09-30 Pajarola Wilhelm Verfahren zur Herstellung einer Unterlage für die Erstellung von rabitzartigen Wänden und nach diesem Verfahren hergestellte Unterlage.
DE884205C (de) * 1950-03-30 1953-07-23 David Freres Ets Metallgitter, insbesondere fuer Rollfelder oder Fussboeden

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1556063A (en) * 1921-12-24 1925-10-06 Dauchy Iron Works Grating
US2350412A (en) * 1941-09-04 1944-06-06 Apex Railway Products Co Reticulated metal walkway and method of producing same
US2826382A (en) * 1953-03-06 1958-03-11 Boeing Co Jet engine exhaust deflector
US2726830A (en) * 1953-06-11 1955-12-13 Armco Steel Corp Blast fence for jet engines
US3072230A (en) * 1960-06-20 1963-01-08 Northrop Architectural Systems Screen wall construction

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308597A (en) * 1964-01-03 1967-03-14 Union Carbide Corp Grid-like article and apparatus for and method of making same
US3287873A (en) * 1964-01-20 1966-11-29 Mcdaill Laura Light regulating panel screen
US3260026A (en) * 1964-02-24 1966-07-12 Alcan Aluminum Corp Solar screen
US3797787A (en) * 1971-04-17 1974-03-19 Nippon Steel Corp Jet engine blast fence
FR2343873A1 (fr) * 1976-03-12 1977-10-07 Clement Louis Procede et elements pour la prefabrication des grilles ornementales utilisees en ferronnerie et en serrurerie
US4893569A (en) * 1986-03-24 1990-01-16 Hansen Arne H Safety wall and a safety cage for tire inflation
US5591904A (en) * 1993-10-21 1997-01-07 Rheinhold & Mahla Ag Apparatus for diminishing intake vortexes in jet engines
US6015244A (en) * 1997-10-01 2000-01-18 Storm Diverter Corporation Wind directing sea wall
US20110042512A1 (en) * 2006-05-23 2011-02-24 University Of Virginia Patent Foundation Method and Apparatus for Jet Blast Deflection
US8360361B2 (en) * 2006-05-23 2013-01-29 University Of Virginia Patent Foundation Method and apparatus for jet blast deflection
US20110048219A1 (en) * 2007-11-13 2011-03-03 Pyles Robert A Blast-resistant barrier
US10408576B2 (en) 2008-10-27 2019-09-10 Plaskolite Massachusetts, Llc High-energy impact absorbing polycarbonate mounting method
EP2258892A1 (de) * 2009-06-05 2010-12-08 Trenzametal, S.L. Falsches Taftgewebe mit einstückiger Kette aus Mettal- oder Kunststoffplatte
US20190024985A1 (en) * 2010-01-14 2019-01-24 University Of Virginia Patent Foundation Multifunctional thermal management system and related method
US9417038B2 (en) 2012-08-29 2016-08-16 Covestro Llc Energy absorber for high-performance blast barrier system
US9879474B2 (en) 2014-05-06 2018-01-30 Covestro Llc Polycarbonate based rapid deployment cover system
CN105937272A (zh) * 2016-06-21 2016-09-14 沈阳建筑大学 单侧大变形抗裂防爆板

Also Published As

Publication number Publication date
BE611958A (fr) 1962-04-16
FR1283981A (fr) 1962-02-09
GB967370A (en) 1964-08-19
DE1913483U (de) 1965-04-08
CH395752A (fr) 1965-07-15
DE1291211B (de) 1969-03-20

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