EP2661527A2 - Système de protection pour parois de bâtiment ou de conteneur - Google Patents

Système de protection pour parois de bâtiment ou de conteneur

Info

Publication number
EP2661527A2
EP2661527A2 EP11807861.7A EP11807861A EP2661527A2 EP 2661527 A2 EP2661527 A2 EP 2661527A2 EP 11807861 A EP11807861 A EP 11807861A EP 2661527 A2 EP2661527 A2 EP 2661527A2
Authority
EP
European Patent Office
Prior art keywords
protection system
grid
impact
buffer layer
building
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.)
Granted
Application number
EP11807861.7A
Other languages
German (de)
English (en)
Other versions
EP2661527B1 (fr
Inventor
Wladimir Trubnikow
Serge NABOISHIKOV
Marco Schippers
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.)
Areva GmbH
Original Assignee
Areva GmbH
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 Areva GmbH filed Critical Areva GmbH
Publication of EP2661527A2 publication Critical patent/EP2661527A2/fr
Application granted granted Critical
Publication of EP2661527B1 publication Critical patent/EP2661527B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • 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
    • E04H9/10—Independent shelters; Arrangement of independent splinter-proof walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24669—Aligned or parallel nonplanarities

Definitions

  • the invention relates to a protection system against impact or impact loads for building or container walls, which is preferably also suitable for subsequent attachment to existing building or container walls.
  • the anticipated temporarily occurring additional loads such as snow loads, ice loads, wind loads as well as impact or impact loads, are taken into account in the planning of the building or in the container construction.
  • additional loads such as snow loads, ice loads, wind loads as well as impact or impact loads.
  • the structure or container can handle additional loads beyond the originally planned load limit.
  • impact and impact loads all events are summarized in which an accelerated mass collides with a building or a container.
  • these impact or impact loads are mainly caused by wind-accelerated items and improperly guided vehicles.
  • potential aggressors as a military target object
  • impact or impact loads which are caused, for example, by projectiles or guided missiles, are to be expected.
  • the present invention seeks to develop a weight and / or dimensionally reduced system or construct, can be protected with the buildings and transport containers in particular against high-energy impact or impact loads.
  • a protective system acts to protect a single building wall, a complete building, a single container wall or a complete container against impact or impact loads.
  • a buffer layer on the impact or impact side of the area to be protected, which absorbs the kinetic energy caused by impact or impact predominantly by plastic deformation.
  • the skeleton or skeleton of this buffer layer form similar, composed of lattice struts unit cells, which are arranged substantially regularly and thus completely cover the area to be protected as deformation lattice.
  • the backbone of the buffer layer which is formed from at least one layer of these unit cells, has a crystal-like base structure.
  • the shape of a single unit cell is pyramidal, with the grid struts forming the edges of the pyramidal shape.
  • the basic framework is supplemented by a deformable deformation mass, which fills the gaps in the deformation grid and thereby completes the buffer layer.
  • the lattice struts of a unit cell form a regular pyramid, since both a favorable deformability is achieved by this design of the skeleton and a simple technical feasibility is ensured.
  • the base of the pyramidal shape is quadrangular and in particular square.
  • the deformation grid has at least two, but preferably four to eight, grid layers of unit cells.
  • the maximum absorbable impact or impact energy increases with increasing number of grid layers.
  • the thickness and the weight of the protection system increase with increasing number of layers. With eight grid layers, simulation calculations show that even large and heavy projectiles with high airspeeds are safely stopped within the buffer layer and do not penetrate to the underlying building or container wall.
  • a plurality of grid layers are provided, it is also advantageous if in each case two grid layers lying directly one above the other are arranged laterally offset from one another by half the length of the diagonal of an elementary cell base surface in the direction of the diagonal. In short, therefore, the grid layers lying directly above one another are displaced diagonally by half an elementary cell.
  • X-shaped struts serve as additional stiffening elements in the deformation grid.
  • the material used for the lattice struts is preferably high-ductility steel. This is available in a wide variety of specifications, so that a good variability is given by which an adaptation of the properties of a buffer layer according to the invention to different specifications or standards is made possible.
  • the buffer layer is also intended to protect buildings against impacting missiles
  • lattice struts is used in this case according to right-cut square or round steel with an edge length or a diameter of about 10 mm to 50 mm.
  • foam concrete or pore lightweight concrete is used as the damping mass.
  • Foamed concrete is a concrete with a planned increase in the air pore content of generally> 30% by volume, which is usually produced by adding a foaming agent or by mixing in a prefabricated foam.
  • this material can absorb large pressure forces and on the other hand it is comparatively light (low density) and readily flowable. He also has good thermal insulation properties.
  • the buffer layer terminates on the impact or impact side with a cover layer, for example made of steel or a composite material, in particular a fiber composite material.
  • a cover layer for example made of steel or a composite material, in particular a fiber composite material. This is used in particular in the case of a sharp or sharp-edged impact or impact body for better distribution of selective pressure surges on a larger area of the deformation grid and thus to increase the effective attack surface.
  • the cover layer can also serve as a shuttering when casting the damping mass.
  • an attachment of the cover layer to the buffer layer by means of anchor elements is considered to be very useful, as this can be done, for example, a simple exchange.
  • An inventive protection system is designed primarily as a protection for flat surfaces. Accordingly, it is advantageous to choose an arrangement of the unit cells in which the bases of the unit cells of each grating layer lie in a common plane and in which these planes are aligned parallel to the surface of the building or container wall to be protected.
  • an adaptation of the buffer layer to curved surfaces (such as domes, domes, cylinders and the like) can also be done. For this purpose, either the deformation lattice is distorted according to the curvature or a modified deformation lattice with a modified lattice structure is used.
  • the advantages achieved by the invention are in particular that by a "composite" structure of a three-dimensional, lightweight, highly deformable (ductile) and preferably multi-layered space frame structure and a cast damping mass a particularly good conversion of the kinetic energy of impact loads (z).
  • the damping mass acts as a stabilization matrix with a very high degree of attenuation due to the non-linear deformation and crushing of the damping mass, preferably made of fiber-reinforced foam concrete (fiber foam concrete) additionally absorbs impact energy conventional solutions in which impact protection is achieved by increased rigidity (greater wall thickness) and increased reinforcement (eg shear reinforcement, rebar connections) of the affected reinforced concrete components Rd, in the impact protection system according to the invention, the formation and propagation of vibrations, vibrations and elastic waves are significantly suppressed or attenuated and kept away from the object or structure to be protected.
  • the protection system according to the invention can be easily and quickly erected, in particular when using preassembled units of the deformation grid, which are installed in layers on the object to be protected and subsequently cast with the damping compound.
  • a retrofitting of existing wall structures is possible.
  • Particularly advantageous is the use of the protection system according to the invention in buildings of nuclear facilities, especially nuclear power plants, but also in conventional power plants and chemical plants, as well as transport containers for nuclear or chemical materials and waste.
  • FIG. 1 is a perspective view of an elementary cell of a buffer layer according to the invention
  • FIG. 2 shows a perspective view of a grid position of a deformation grid of a buffer layer according to the invention
  • FIG. 3 is a perspective, partially cutaway view of a buffer layer according to the invention on a detail of the building roof, or
  • Fig. 4 is a profile section of a deformation grid.
  • a partial section of a building roof 1 is considered by way of example (see FIG. 3).
  • the flat outer surface 2 of this section is to be protected by a subsequent cultivation against impact or impact loads.
  • a buffer layer 3 is positioned on the surface 2. The fixation of the buffer layer 3 on the surface 2 takes place with the aid of a material connection not shown in detail or in any other way.
  • lattice struts 4 As a basis for the buffer layer 3 is a construction of welded together lattice struts 4. It should be noted again at this point that the Art the non-detachable connection between the lattice struts 4 is not limited to those selected here. As also expedient alternatives connections are considered by screwing, riveting, jamming or gluing. Eight of these lattice struts 4 made of cut round steel form an elementary cell 5 shown in FIG. 1. According to their spatial arrangement, the lattice struts 4 of an elementary cell 5 form the edges of a straight pyramid with a square base. The ratio between the edge length of the square base and the height of the pyramid is about 1.7 in this case.
  • a crystal-like deformation grid is formed. This is, as it were, constructed from a multiplicity of grid layers 6, which are stacked one above the other in the stacking direction 7.
  • the arrangement of the unit cells 5 within each grid layer 6 is designed such that the square base surfaces of the unit cells 5, as in a chessboard, each other without gaps, whereby the lowest in the stacking direction 7 grid layer 6 completely covers the protected surface 2 to be protected.
  • a schematic representation of the arrangement of a grid layer 6 can be seen in FIG.
  • Two directly superimposed grid layers 6 are arranged laterally offset from one another by half the length of the diagonal of an elementary cell base surface in the direction of the diagonal. Because of this alternating stacking sequence ABAB, the tips of the pyramids forming the lower grid layer 6 and the corners of the base areas of the pyramids forming the overlying grid layer 6 touch each other. Exactly at these points of contact, the individual grid layers 6 are permanently connected to each other, so welded.
  • additional X-shaped braces 8 are realized in this way. They serve, as with a crane boom or a steel bridge construction, as additional stiffening elements in the deformation grid. Visible are the X-shaped struts 8 when looking at the deformation grating in the profile. A corresponding section is shown in FIG. 4.
  • the deformation grid acts in a buffer layer 3 according to the invention in the manner of a skeleton or skeleton.
  • This basic framework is surrounded by a damper mass 9 made of fiber-reinforced foam concrete. That foam concrete complements the deformation grid to a cuboid buffer layer 3 and fills in the gaps in the deformation grid.
  • Both components, the damping mass 9 and the deformation grid can in themselves absorb impact or impact energy. While in the deformation lattice this is done mainly by plastic deformation, the energy absorption in the damping mass 9 is effected primarily by a compression.

Abstract

L'invention concerne un système de protection destiné à protéger une paroi de bâtiment ou de conteneur contre des charges d'impact au moyen d'une couche d'amortissement (3) disposée sur le côté d'impact de la paroi de bâtiment ou de conteneur et absorbant l'énergie d'impact de la charge d'impact principalement sous l'effet d'une déformation plastique. La couche d'amortissement (3) comprend une grille de déformation composée d'un ensemble sensiblement régulier de cellules élémentaires (5) et comportant un certain nombre de couches de grille (6), les espaces intermédiaires de ladite grille étant remplis d'une masse d'amortissement (9) déformable. Les cellules élémentaires (5) respectives sont composées de plusieurs barreaux de liaison de grille (4) formant les arêtes d'une pyramide.
EP11807861.7A 2011-01-07 2011-12-16 Système de protection pour parois de bâtiment ou de conteneur Not-in-force EP2661527B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011008067A DE102011008067A1 (de) 2011-01-07 2011-01-07 Schutzsystem für Gebäude- oder Behälterwände
PCT/EP2011/006377 WO2012092949A2 (fr) 2011-01-07 2011-12-16 Système de protection pour parois de bâtiment ou de conteneur

Publications (2)

Publication Number Publication Date
EP2661527A2 true EP2661527A2 (fr) 2013-11-13
EP2661527B1 EP2661527B1 (fr) 2014-04-23

Family

ID=45476444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11807861.7A Not-in-force EP2661527B1 (fr) 2011-01-07 2011-12-16 Système de protection pour parois de bâtiment ou de conteneur

Country Status (8)

Country Link
US (1) US20130295340A1 (fr)
EP (1) EP2661527B1 (fr)
CN (1) CN103314168A (fr)
BR (1) BR112013017015A2 (fr)
CA (1) CA2824408A1 (fr)
DE (1) DE102011008067A1 (fr)
WO (1) WO2012092949A2 (fr)
ZA (1) ZA201303907B (fr)

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DE102017201915A1 (de) 2017-02-07 2018-08-09 New Np Gmbh Schutzsystem zum Schutz von Gebäuden vor Flugzeugabstürzen
CN108252510A (zh) * 2018-03-28 2018-07-06 中铁十局集团第二工程有限公司 一种混凝土分仓阻隔格栅网
CN108487490B (zh) * 2018-04-16 2019-09-20 太原理工大学 抗爆炸冲击的复合防护结构
CN111677976A (zh) * 2020-07-09 2020-09-18 中国电建集团成都勘测设计研究院有限公司 可用于峡谷区水电工程边坡区域的供水管道防护结构

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Also Published As

Publication number Publication date
WO2012092949A2 (fr) 2012-07-12
US20130295340A1 (en) 2013-11-07
ZA201303907B (en) 2014-08-27
CA2824408A1 (fr) 2012-07-12
WO2012092949A8 (fr) 2013-01-10
BR112013017015A2 (pt) 2019-10-01
EP2661527B1 (fr) 2014-04-23
CN103314168A (zh) 2013-09-18
WO2012092949A3 (fr) 2012-08-30
DE102011008067A1 (de) 2012-07-12

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