EP0364357B1 - Dispositif pour améliorer la résistance des ouvrages à l'impact des projectiles conventionnels - Google Patents

Dispositif pour améliorer la résistance des ouvrages à l'impact des projectiles conventionnels Download PDF

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Publication number
EP0364357B1
EP0364357B1 EP89402802A EP89402802A EP0364357B1 EP 0364357 B1 EP0364357 B1 EP 0364357B1 EP 89402802 A EP89402802 A EP 89402802A EP 89402802 A EP89402802 A EP 89402802A EP 0364357 B1 EP0364357 B1 EP 0364357B1
Authority
EP
European Patent Office
Prior art keywords
projectile
concrete
elements
ribs
covering
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 - Lifetime
Application number
EP89402802A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0364357A1 (fr
Inventor
Henri Chapus
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.)
Campenon Bernard SA
Original Assignee
Campenon Bernard SA
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 Campenon Bernard SA filed Critical Campenon Bernard SA
Publication of EP0364357A1 publication Critical patent/EP0364357A1/fr
Application granted granted Critical
Publication of EP0364357B1 publication Critical patent/EP0364357B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/04—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against air-raid or other war-like actions

Definitions

  • the present invention relates to a device for improving the resistance of structures, in particular concrete, such as shelters, hangars, buildings, walls, slabs, etc. the impact of conventional projectiles such as bombs and shells.
  • the effectiveness of the projectiles decreases because the thickness of the concrete increases. Above a certain value of the angle of incidence, the projectiles can ricochet and their effectiveness then becomes zero.
  • FR-A-2,519,133 describes protective devices whose external surface has a succession of ribs and grooves substantially in V and of reduced dimensions compared to those of the projectile. In these devices, it is sought to avoid any contact with the point of a projectile.
  • the aim of the present invention is to create a device which makes it possible to reduce the effectiveness of projectiles and thus improve the resistance of structures to the impact of these projectiles.
  • this device which comprises a surface formed by a succession of ribs and grooves of substantially V-shaped profile with lateral faces inclined and smooth, is characterized in that said surface is constituted by a coating of metal harder than concrete, the inner faces of the ribs of this coating being completely in contact with concrete, the height of said ribs being sufficient and said coating being hard enough for the projectile to be deflected after impact on an inclined side face of a rib.
  • said surface consists of a coating of metal harder than concrete, the interior faces of this coating being in contact with concrete.
  • This coating promotes the sliding of the projectile along the inclined face of the rib.
  • the covering consists of a series of elements of substantially inverted V cross section and connected to each other by their opposite longitudinal edges.
  • These elements are preferably made of steel, which makes it possible to reduce the cost of the device according to the invention.
  • FIG. 1 shows a projectile 1, for example a bomb arriving with an angle of incidence i on the flat surface of a concrete structure 2 such as a shelter.
  • This projectile 1 is optimal when the angle i is equal to 0 (that is to say when the projectile normally arrives on the surface of the structure).
  • the invention aims to reduce the effectiveness of the projectile 1, by improving the resistance of the structure with respect to the impact of the projectile.
  • the device for improving the resistance of the concrete structure 2 comprises (see FIGS. 2 and 3) a surface 3 formed by a succession of ribs and grooves of substantially V-shaped profile with smooth inclined lateral faces 4 , the height H of said ribs being sufficient and said surface 3 being hard enough for the projectile 1 to be deflected after impact on an inclined lateral face 4 of a rib.
  • the surface 3 is constituted by a coating of metal harder than the concrete of the structure 2, the interior faces 5 of this coating being in contact with the concrete of the structure.
  • the covering consists of a series of elements of substantially inverted V cross section and connected to each other by their opposite longitudinal edges 4a, 4b.
  • These V-shaped elements are preferably made of ordinary quality steel and with a thickness of the order of 1 cm. These elements are thus simple to produce and inexpensive.
  • the lateral faces 4 of the V-shaped elements must cause the projectile 1 to slide.
  • the apex angle has substantially V-shaped elements is preferably of the order of 90 °.
  • the bottom of the grooves formed by the substantially V-shaped elements is reinforced.
  • the longitudinal edges of the substantially V-shaped elements are extended by edges 4c, 4d which overlap each other.
  • the bottom of the grooves formed by the substantially V-shaped elements is reinforced by a double thickness of metal.
  • edges 4c, 4d which overlap each other are fixed to each other by rods 6 anchored in the concrete of the underlying structure.
  • the device according to the invention can be mounted as a reinforcement on the existing concrete surface of a structure or can be used in outdoor formwork in the construction of a shelter.
  • the device according to the invention also provides an improvement in the strength of the structure when the incidence of the projectile is clearly greater than 0 °.
  • the surface of the substantially V-shaped elements can be treated to promote the sliding of the projectile.

Landscapes

  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Control Of Electrical Variables (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Building Environments (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP89402802A 1988-10-14 1989-10-11 Dispositif pour améliorer la résistance des ouvrages à l'impact des projectiles conventionnels Expired - Lifetime EP0364357B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8813534 1988-10-14
FR8813534A FR2637935B1 (fr) 1988-10-14 1988-10-14 Dispositif pour ameliorer la resistance des ouvrages a l'impact des projectiles conventionnels

Publications (2)

Publication Number Publication Date
EP0364357A1 EP0364357A1 (fr) 1990-04-18
EP0364357B1 true EP0364357B1 (fr) 1992-03-18

Family

ID=9371024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402802A Expired - Lifetime EP0364357B1 (fr) 1988-10-14 1989-10-11 Dispositif pour améliorer la résistance des ouvrages à l'impact des projectiles conventionnels

Country Status (10)

Country Link
EP (1) EP0364357B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA2000436A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE68901023D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK510089A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2030289T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2637935B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GR (1) GR3004166T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO170173C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
PT (1) PT91987B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
TR (1) TR25306A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2855655A1 (en) 2013-07-03 2015-01-03 Rixford Smith Pyramid-sphere bunker system
CN112129178A (zh) * 2019-06-25 2020-12-25 北京清华同衡规划设计研究院有限公司 带偏航防护结构

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US787065A (en) * 1902-04-25 1905-04-11 Frank G White Armor-plate.
GB527591A (en) * 1939-04-15 1940-10-11 Albert James Bridle Improvements relating to air raid shelters and the like
DE1675801U (de) * 1953-01-21 1954-05-06 Nelsbach & Co Splitterschutzwand aus fertigteilen.
DE2325921A1 (de) * 1973-05-22 1974-12-12 Karl Weber Schussichere wandung, insbesondere fuer fahrzeuge, einschliesslich flugzeuge
DE2818733A1 (de) * 1978-04-28 1979-10-31 Wahl Verschleiss Tech Beschussbestaendiger, insbesondere plattenfoermiger, koerper
FR2519133A1 (fr) * 1981-12-29 1983-07-01 Graner Joseph Systemes de defense
FR2529933A1 (fr) * 1982-07-12 1984-01-13 Alsthom Atlantique Couverture de protection contre les impacts de missiles passifs
DE3508865A1 (de) * 1985-03-13 1986-09-18 Jürgen Dipl.-Ing. 6607 Quierschied Unterländer Schutzraeume aus baustahl-trapezprofilblech-verbundsystem im baukastenprinzip

Also Published As

Publication number Publication date
NO894012L (no) 1990-04-17
DK510089A (da) 1990-04-15
FR2637935A1 (fr) 1990-04-20
DE68901023D1 (de) 1992-04-23
ES2030289T3 (es) 1992-10-16
NO170173C (no) 1992-09-16
GR3004166T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-03-31
PT91987A (pt) 1990-04-30
NO894012D0 (no) 1989-10-06
DK510089D0 (da) 1989-10-13
TR25306A (tr) 1992-12-21
PT91987B (pt) 1995-08-09
NO170173B (no) 1992-06-09
FR2637935B1 (fr) 1993-07-16
EP0364357A1 (fr) 1990-04-18
CA2000436A1 (en) 1990-04-14

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