EP3497395B1 - Ensemble plaque de protection et procédé de réparation d'une telle plaque de protection - Google Patents

Ensemble plaque de protection et procédé de réparation d'une telle plaque de protection Download PDF

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Publication number
EP3497395B1
EP3497395B1 EP17751282.9A EP17751282A EP3497395B1 EP 3497395 B1 EP3497395 B1 EP 3497395B1 EP 17751282 A EP17751282 A EP 17751282A EP 3497395 B1 EP3497395 B1 EP 3497395B1
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EP
European Patent Office
Prior art keywords
panel
protective
assembly according
panel assembly
plate
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EP17751282.9A
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German (de)
English (en)
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EP3497395A1 (fr
Inventor
Johann Pfaff
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Solidian GmbH
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Solidian GmbH
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    • 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
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0428—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249923—Including interlaminar mechanical fastener

Definitions

  • the invention relates to a protective plate arrangement for protection against bombardment and / or explosions as well as a method for repairing such a protective plate arrangement after damage by an impact, for example by explosion splinters or a projectile.
  • Guard plate arrangements that are bullet-resistant or bullet-resistant exist in a variety of configurations. So describes for example WO 2009/111302 A2 a system with a cement-based protective plate.
  • the protective plate has a cement core. Fiber-reinforced mats are glued onto opposite sides of this cement core.
  • the three-layer protective plate can be placed on a metal frame. It is also possible to arrange corresponding three-layer protective plates on both sides of the frame.
  • CN 201952936 U describes a protective plate arrangement according to the preamble of the claim, which comprises two steel-reinforced cement plates which are connected to one another by means of bolts. Mineral wool is arranged between the cement panels. One of the cement boards is on the outside a fiber board with aramid or carbon fibers arranged. The protective wall can be set up on a stand.
  • US 2008/0092731 A1 shows a protective plate arrangement with two concrete walls, between which a reinforcement layer is arranged.
  • the two concrete walls are connected by connecting elements, the ends of which are embedded in a concrete wall.
  • US 2009/0282968 A1 describes a protective plate assembly comprising a plurality of aramid fiber reinforced plates which are embedded in a multilayer structure between a plurality of front plates and a plurality of back plates.
  • the plate arrangement is held together by a frame running around the circumference.
  • a multi-layer protective plate assembly is shown in US 2016/0102471 A1 disclosed.
  • Each layer has a multilayer structure and can contain metal alloys, metal compositions, polymers, stone materials, fiber materials and combinations thereof.
  • the layers are held together by a frame arranged on the edge.
  • the protective plate assembly has at least one alkali-resistant fiber layer which is embedded in an inorganic matrix.
  • the reinforcement plate thus formed is arranged on a support structure, for example a wall.
  • the object of the present invention to create a protective plate arrangement which represents a high level of protection against explosions or bombardment and at the same time has a small thickness and a low square meter weight.
  • the protective plate arrangement should be suitable as a wall element of a building or facing shell for attachment to facades.
  • the protective plate arrangement according to the invention has at least three and preferably exactly three textile-reinforced concrete slabs: an outer plate, an inner plate and an intermediate plate which is arranged between the outer plate and the inner plate. At least one textile layer is embedded in the concrete matrix of each concrete slab. Each textile layer is preferably formed by a lattice-shaped scrim made of fiber bundles or filament bundles, the bundles of the scrim extending either in a first direction or a second direction.
  • the concrete matrix can, for example, contain cement and an aggregate and optionally concrete additives or concrete additives.
  • the concrete slabs are preferably aligned parallel to a slab plane, which is spanned by an x-direction and a y-direction of a Cartesian coordinate system.
  • the protective panel assembly also includes at least one fiberboard. If there are several fibreboards, they are next to each other parallel to the plane of the board arranged so that a normal vector of a fiberboard does not penetrate the other fiberboard.
  • the at least one fiber board is arranged between the outer plate and the intermediate plate.
  • the fiberboard has plastic fiber bundles embedded in a plastic matrix.
  • the plastic fibers or plastic filaments can be made of aramid and / or glass and / or carbon, for example.
  • An epoxy resin for example, can be used as the plastic matrix.
  • the inner plate is arranged at a distance from the intermediate plate.
  • a space is formed between the inner plate and the intermediate plate.
  • the space can be filled with a gaseous and / or solid filler material.
  • air can be present in the space and / or a solid insulation material such as polystyrene, mineral wool, natural fibers, etc.
  • the plates of the protective plate arrangement are connected to one another via connecting elements and therefore form a coherent arrangement or a composite.
  • the connecting elements have a first end and a second end opposite the first end.
  • the two ends of a connecting element are embedded in different textile-reinforced concrete slabs and attached or integrated there in a form-fitting and / or cohesive manner.
  • a connecting element can, for example, connect the outer plate and the intermediate plate.
  • a connecting element can also connect the intermediate plate to the inner plate. It is also possible that a connecting element extends from the first end in the outer plate through the intermediate plate to the second end in the inner plate and thus connects all three textile-reinforced concrete plates to one another.
  • the inner plate can be kept at a distance from the intermediate plate to form the intermediate space via the connecting elements become.
  • a side of the outer plate facing away from the fiberboard forms the outside of the protective plate arrangement.
  • the side of the inner plate facing away from the intermediate plate forms the inside of the protective plate arrangement.
  • chipped parts can cross the gap and then hit the inner plate if necessary.
  • the energy of these chipped concrete parts of the intermediate plate is sufficiently low that they can cause even minor damage to the side of the inner plate facing the intermediate space, but no further concrete parts flake off on the inside of the protective plate arrangement.
  • the ductility of the three textile-reinforced concrete slabs in conjunction with the fiber board prevents the concrete material from flaking on the inside. People or facilities behind the inside are effectively protected from explosions or gunfire.
  • the fact that the textile-reinforced concrete slabs are connected to one another via the connecting elements and the at least one fiber board is held between the outer plate and the inner plate creates a composite system, which can be viewed statically as a single element, which simplifies static calculations on buildings.
  • the textile-reinforced concrete slabs have a high ductility, which greatly improves the protection against impacting elements in cooperation with the at least one fiber board.
  • the protective plate arrangement can be designed with a significantly smaller thickness or significantly lower weight compared to other known protective plate systems.
  • the protective plate arrangement can only have the three textile-reinforced concrete plates and the fiber plate.
  • a solid filler material is arranged in the space instead of air, which is used in particular in a coherent, plate-like form, the production of the protective plate arrangement and in particular the pouring of the individual textile-reinforced concrete slabs can be simplified.
  • one side of the at least one fiber board can bear directly on the outer plate and / or the other side directly on the intermediate plate. Further intermediate layers between the outer plate and the intermediate plate are not necessary.
  • the fiber board can be connected to the outer plate and / or the intermediate plate before the concrete sets.
  • the outer plate and the intermediate plate can also have a uniform concrete matrix.
  • the at least one fiber board is preferably not penetrated by the at least one connecting element and / or the connecting elements are not integrated into the plastic matrix of the fiberboard.
  • a connecting element which is embedded with a first end in the concrete matrix of the outer panel, preferably extends past the at least one fiber panel and / or between two or more adjacent fiber panels. If several fiber boards are arranged next to one another between the outer plate and the intermediate plate, the distance between the fiber boards is kept as small as possible so as not to form a weak point. It is also possible that a fiber board has a recess for an associated connecting element, wherein the recess can also be arranged in the edge side.
  • the fiberboard can be prefabricated and transported to the construction site for the production of the protective panel arrangement.
  • a connecting element which is embedded with a first end in the concrete of the outer plate, preferably does not penetrate the outer side of the protective plate arrangement.
  • a connecting element which is embedded with its second end in the concrete of the inner plate does not penetrate the inside of the protective plate arrangement.
  • the outside or the inside can be formed continuously from a uniform material surface.
  • the at least one connecting element has a connecting web which connects the first end of the connecting element to the second end of the connecting element. At the first end and / or the second end can each have a transverse web. To connect all three textile-reinforced concrete slabs, the connecting web can fully penetrate the intermediate slab.
  • the connecting web can run inclined relative to a cross-sectional plane in at least one section and at an angle of inclination, the cross-sectional plane being at right angles to the plate plane or to the outer plate or to the Intermediate plate or is aligned to the inner plate. It is also possible to provide several sections of the connecting web with different inclinations or angles of inclination. As a result, the direct introduction of a force via the connecting web from the outer plate into the intermediate plate or the inner plate parallel to the cross-sectional plane can be reduced.
  • connecting web weaker or with a smaller thickness than the other components of the connecting element and in particular as the transverse web, which can be present at the first end and / or at the second end of the connecting element.
  • the connecting element can be formed by a fiber-reinforced composite material.
  • the number or density of fibers or fiber bundles in the connecting web can be lower in at least one transverse web or in other components of the connecting element.
  • the connecting elements form several and for example two groups.
  • One group contains at least one first connecting element and the other group contains at least one second connecting element.
  • the at least one first connecting element is arranged offset in relation to the at least one second connecting element in the plane of the plate, that is to say in the x-direction and / or y-direction.
  • the at least one first connecting element can connect the outer plate to the intermediate plate.
  • the at least one second connecting element can connect the intermediate plate to the inner plate. Continuous connecting elements which extend from the outer plate through the intermediate plate to the inner plate are preferably not present in this embodiment.
  • Each of the concrete slabs has at least one textile layer.
  • the number of textile layers in the intermediate plate is preferably greater than in the outer plate and / or in the inner plate.
  • the intermediate plate can have at least three textile layers.
  • the outer plate and / or the inner plate can each have exactly one textile layer in one embodiment. If a concrete slab has more than one textile layer, these are preferably arranged in a z-direction at right angles to the slab plane at a distance from one another. The z-direction corresponds to the spatial direction in which the normal vector of the concrete slab in question points.
  • a textile layer is preferably formed by a lattice-shaped scrim made of fiber bundles.
  • the one fiber bundles extend at a distance from one another in the x direction and the other fiber bundles extend, for example, at a distance from one another in the y direction.
  • the fibers or filaments of each fiber bundle are stretched as possible.
  • the crossed fiber bundles can be connected to one another before being embedded in the concrete matrix, for example by a connecting thread or the like.
  • the invention also relates to a method of repairing a knockout hole in the protective plate assembly described above. The following steps are carried out:
  • an area of the impact hole that extends in the intermediate plate is filled with a resin or pressed out with resin. Then a replacement piece for the fiberboard is inserted into the knock-in hole on the existing fiberboard. The area of the fiberboard damaged by the impacted element is covered by the replacement piece. The area of the knock-in hole that extends in the outer panel is then filled with a filler.
  • the invention provides a guard plate assembly 20 wide for protection against fire and / or explosions.
  • the protective plate arrangement 20 has three textile-reinforced concrete plates 21: an outer plate 22, an inner plate 23 and an intermediate plate 24.
  • the concrete plates 21 are aligned essentially parallel to one another.
  • Each concrete slab 21 extends parallel to a slab plane, which is spanned by an x-direction and a y-direction of a Cartesian coordinate system.
  • the intermediate plate 24 is arranged between the outer plate 22 and the inner plate 23.
  • the three textile-reinforced concrete slabs 21 do not lie directly against one another, but are each arranged at a distance from one another in the z-direction.
  • the thickness of the intermediate plate 24 is greater than the thickness of the outer plate 22 and / or the inner plate 23.
  • the thickness of the intermediate plate 24 is preferably at least twice as great as that of the outer plate 22 and / or the inner plate 23.
  • a side of the outer plate 22 facing away from the intermediate plate 24 forms an outer side 25 of the protective plate arrangement 20.
  • the inner plate 23 has a side facing away from the intermediate plate 24, which forms an inner side 26 of the protective plate arrangement 20. Behind the inside 26 are people or facilities to be protected. Impacting elements such as splinters, projectiles or the like hit the outside 25 of the protective plate arrangement 20.
  • Each textile-reinforced concrete slab 21 has at least one textile layer 30 which is embedded in a concrete matrix 31. If a textile-reinforced concrete slab 21 has more than one textile layer 30, the individual Textile layers arranged at a distance from one another in the z-direction. The individual textile layers 30 preferably do not touch. With increasing thickness of a concrete slab 21 in the z-direction, the number of textile layers 30 is increased and preferably increases proportionally with the thickness. In the preferred exemplary embodiment described here, the outer plate 22 and the inner plate 23 each have a single textile layer 30. The number of textile layers 30 of intermediate plate 24 is greater, for example, than the number of textile layers of outer plate 22 and / or inner plate 23. In the exemplary embodiments illustrated here, at least three textile layers 30 are embedded in intermediate plate 24 in concrete matrix 31.
  • the concrete matrix 31 consists of a binder such as cement and an aggregate. Gravel and / or sand, for example, can be used as aggregate.
  • the concrete matrix can contain concrete additives or concrete admixtures.
  • FIG. 5 the structure of a textile layer 30 is illustrated schematically.
  • the textile layer 30 is formed by fiber bundles 32 arranged in a grid-like manner.
  • a first group 33 of fiber bundles 32 extends in one direction, for example in the x direction, while a second group 34 of fiber bundles 32 extends in another direction, for example in the y direction.
  • the two groups 33, 34 are placed on top of one another and thereby form a lattice-shaped scrim.
  • the fiber bundles 32 extend essentially in a straight line.
  • essentially rectangular and / or square meshes are formed in the scrim. Notwithstanding this, the meshes could also be designed in a diamond shape. It's still possible, at least add another group of fiber bundles 32 so that the scrim consists of three or more groups of fiber bundles 32 arranged one above the other.
  • the fiber bundles 32 of a common group 33, 34 each extend essentially parallel to one another. At the crossing points, the intersecting fiber bundles are connected to one another by connecting means, for example by connecting threads or the like.
  • the scrim which is flexible before being tied into the concrete matrix 31, can thus be handled and the positioning of the individual fiber bundles 32 is retained.
  • filaments made of glass, carbon or other filaments suitable for textile concrete come into consideration as the material for the fibers of the fiber bundles 32 of the textile layer 30.
  • the textile-reinforced concrete slabs 21 Compared with reinforced concrete, the textile-reinforced concrete slabs 21 have a greater ductility and a low weight. Because of this ductility, breaking by hitting elements of the outer plate 22 does not take place until greater forces or loads are present than with reinforced concrete.
  • the three textile-reinforced concrete slabs 21 are connected to one another via connecting elements 40.
  • all connecting elements 40 are identical.
  • Each connecting element 40 has a first end 41 and an opposite second end 42.
  • a transverse web 43 is provided at each end 41, 42.
  • the transverse webs 43 extend in the x-direction as well as in the y-direction and can be formed by plate-shaped sections of the connecting element 40.
  • the two transverse webs 43 are connected to one another via a connecting web 44 which extends from the first end 41 extends to the second end 42.
  • the connecting web 44 runs parallel to a cross-sectional plane E, which is spanned by the z-direction and the y-direction.
  • the two transverse webs 43 extend at right angles to this.
  • a transverse web 43 can extend away from the connecting web 44 in the x direction only to one side or to both sides.
  • U-shaped, J-shaped, C-shaped, T-shaped or double-T-shaped connecting elements 40 can be formed, for example, when viewed in cross section.
  • the connecting elements 40 penetrate neither the outside 25 nor the inside 26 of the protective plate arrangement 20.
  • the structure of an exemplary connecting element 40 is shown in FIG Figure 4 illustrated schematically.
  • the connecting element 40 is formed from fiber bundles 45 embedded in a plastic matrix.
  • the fiber bundles 45 are in Figure 4 each illustrated by a line.
  • Fiber bundles 45 arranged in a grid-like manner are embedded in a plastic matrix and brought into the desired shape.
  • Several grid parts 46 can be formed and connected to one another by means of the plastic matrix, as is illustrated schematically in FIG. According to Figure 4 the two grid parts 46 have sections arranged parallel to one another, which are placed against one another and connected via the plastic matrix.
  • these form sections the connecting web 44.
  • Sections of each lattice part 46 angled therefrom form the transverse webs 43 at the first end 41 and at the second end 42.
  • the interconnected lattice parts 46 can deviate from Figure 4 also have other shapes.
  • the fiber bundles 45 of the connecting element 40 can for example be formed by glass fibers.
  • the fiber bundles 45 are preferably incorporated into a matrix made of epoxy resin or soaked in an epoxy resin.
  • the epoxy resin also serves as a connecting means for the integral connection of several grid parts 46.
  • a connecting element 40 is formed from a single grid part 46.
  • At least one fiber board 50 is arranged between the outer plate 22 and the intermediate plate 24.
  • the at least one fiber board 50 rests on one side on the outer plate 22 and on the opposite side on the intermediate plate 24 or is connected to the outer plate 22 and / or the intermediate plate 24.
  • the at least one fiber plate 50 can be connected to the respective concrete plate 21 by contact with the concrete matrix 31 of the outer plate 22 and / or the intermediate plate 24 and the subsequent hardening of the concrete matrix 31.
  • fiber boards 50 extend next to one another in a common plane and are not arranged offset to one another in the z direction.
  • the at least one fiber plate 50 is not penetrated by the connecting elements 40 in the exemplary embodiment.
  • the connecting elements 40 extend past the at least one fiber board 50.
  • Another possibility is to provide a recess for the connecting web 44 in a fiberboard 50 at the edge, so that immediately adjacent fiber boards 50 can lie directly against one another at those points where there is no connecting web 44 and no connecting element 40.
  • the connecting elements 40 do not extend in the x-direction and in the y-direction over the entire dimension of the protective plate arrangement 20. Adjacent to the connecting elements 40 - viewed in the y-direction - two fiber boards 50 arranged next to one another can therefore rest against one another. In the area of the connecting web 44, a corresponding recess can be provided in one or in both adjacent fiber boards 50. Depending on the number of connecting bodies 40 used and their position, the number of fiber boards 50 present can vary. In Figure 6 three fibreboards arranged next to one another in the x-direction are illustrated, between each of which a connecting element 40 or a connecting web 44 extends.
  • the at least one fiber board 50 has plastic fiber bundles 51 which are connected to one another and, in particular, are connected to one another by weaving technology and which are produced from glass fibers or aramid fibers.
  • the weaving technique can be chosen as desired.
  • a fabric 52 is illustrated which, according to the example, has a plain weave.
  • the fabric 52 made of plastic fiber bundles 51 is embedded in a plastic matrix 53 of the fiber board 50
  • plastic fibers or plastic fiber bundles 51 lie very close to one another and no or the smallest possible gaps remain.
  • An epoxy resin is preferably used as the plastic matrix 53.
  • the plastic fiber bundles 51 and, for example, the aramid fiber bundles or glass fiber bundles are protected from decomposition or damage by the alkaline concrete matrix 31 of the adjacent concrete slabs 21 via the plastic matrix 53.
  • An intermediate space 57 is formed between the intermediate plate 24 and the inner plate 23.
  • the inner plate 23 is arranged at a distance from the intermediate plate 24 in the z direction.
  • This intermediate space 57 is penetrated by at least a part of the existing connecting elements 40. Otherwise the space 57 can be filled with air ( Figure 2 ) and / or a solid and preferably plate or mat-shaped filling material 58 (e.g. Figure 1 ).
  • the filler material 58 is elastically and / or plastically deformable and, in particular, is many times more easily deformed than all other plates 21, 50 of the protective plate arrangement 20.
  • Styrofoam plates natural and / or synthetic fiber mats, mineral wool mats, etc. can be used as filler material 58, for example.
  • contiguous sheets or mats that form the filler material 58 are easier to handle during manufacture and are therefore preferred.
  • the thus far described protective plate arrangement 20 works as follows: When an impacting element hits the outer side 25, the impacting element is initially deformed by the outer plate 22, whereby the kinetic energy is reduced. The impacting element can completely penetrate the outer panel 22 and strike the fiber panel 50. There, the striking element deforms the aramid or glass fibers, as a result of which the kinetic energy is reduced by stretching and deforming the fibers of the plastic fiber bundle 51. The fiber board 50 is damaged and / or deformed in the area of the impact hole. The striking element can penetrate into the intermediate plate 24. As a result of this impact in the intermediate plate 24, concrete parts can flake off on the side of the intermediate plate 24 facing the inner plate 23.
  • Such a chipped concrete part can penetrate into the space 57 or penetrate it and impinge on the inner plate 23. Due to the size, the shape and the reduced energy of such a flaked concrete part, damage may still occur on the side of the inner plate 23 facing the intermediate space 57. However, the impact energy is not sufficient to throw off concrete parts on the inside 26 of the protective plate arrangement 20 which could injure or damage people or equipment.
  • a connecting element 40 connects all three textile-reinforced concrete slabs 21 to one another.
  • the connecting elements 40 are divided into a group of first connecting elements 40a and a group of second connecting elements 40b.
  • the first and second connecting elements 40a, 40b have, for example, a U-shaped or bow-shaped shape when viewed in cross section.
  • the first end 41 of the first connecting elements 40a is in the concrete matrix 31 of the outer slab 22 and the second end 42 of these first connecting elements 40a is embedded in the concrete matrix 30 of the intermediate plate 24.
  • first end 41 of the second connecting elements 40 is embedded in the concrete matrix 31 of the intermediate plate 24 and the second end 42 in the concrete matrix 31 of the inner plate 23.
  • first connecting elements 40a connect the outer plate 22 to the intermediate plate 24 and the second connecting elements 40b connect the intermediate plate 24 to the inner plate 23.
  • the second connecting elements 40b are offset in the x-direction and / or y-direction with respect to the first connecting elements 40a.
  • the connecting webs 44 of the first connecting elements 40a are not aligned with the connecting webs 44 of the second connecting elements 40b.
  • a force or pressure wave acting on the outer side 25 is thereby not conducted via the connecting elements 40a, 40b and in particular the connecting webs 44 into the inner plate 23.
  • the risk of concrete parts flaking off on the inside 26 and injuring or damaging people or equipment is thereby further reduced.
  • first and second connecting elements 40a, 40b in Figure 7 can also the connecting elements 40 according to Figures 1 and 2 correspond.
  • Other configurations of the first and second connecting elements 40a, 40b are also possible, as has been explained above.
  • the structure of the protective plate arrangement 20 according to FIG Figure 7 Otherwise corresponds to the structure of the exemplary embodiments explained above.
  • FIG Figure 8 Another modified embodiment of the protective plate arrangement 20 with modified connecting elements 40 is shown in FIG Figure 8 illustrated. Apart from the connecting elements 40, this embodiment corresponds according to the embodiment Figure 1 or 2 .
  • the difference of the embodiment according to Figure 8 compared to the Figures 1 and 2 consists in that the connecting webs 44 of the connecting elements 40 run obliquely or inclined with respect to the cross-sectional plane E, which is oriented at right angles to the x direction and thus penetrates the plates 21, 50 of the protective plate arrangement 20 at right angles.
  • An angle of inclination ⁇ with respect to the cross-sectional plane E is greater than 0 degrees and less than 90 degrees and in particular less than 80 degrees or less than 70 degrees.
  • the angle of inclination ⁇ is preferably at least 10 degrees or 15 degrees or 25 degrees.
  • a force Fz acting on the first end 41 along the cross-sectional plane E or in the z-direction in the region of the connecting web 44 is thereby only partially transmitted along the connecting web 44 to the inner plate 23.
  • a smaller longitudinal force Fs in terms of magnitude and an additional transverse force Fq act at right angles to the connecting web 44.
  • the vector decomposition of the forces is shown in FIG Figure 9 illustrated schematically.
  • the larger the angle of inclination ⁇ is chosen, the lower the amount of the longitudinal force Fs.
  • the amount of the transverse force Fq is less relevant, since this transverse force Fq does not lead to flaking on the inside 26 of the protective plate arrangement 20.
  • the entire connecting web 44 extends in a correspondingly inclined plane from the first end 41 to the second end 42.
  • the two sections 44a, 44b form a kink 62.
  • More than two sections could also connect to one another in an accordion-like or zigzag shape between the crosspiece 43 at the first end 41 and the crosspiece 43 at the second end 42.
  • the amounts of the first angle of inclination ⁇ 1 and of the second angle of inclination ⁇ 2 can be the same or different.
  • Figures 10 and 11 show an alternative or further possibility of reducing the maximum force that can be transmitted from the first end 41 to the second end 42 by reducing the stability of the connecting web 44.
  • This can be achieved, for example, in that the wall thickness ws of the connecting web 44 is at least partially smaller than the maximum wall thickness wq of the transverse webs 43.
  • the weakening of the connecting web 44 can additionally or alternatively also by reducing the density of the fiber bundles 45 or fibers within the fiber bundles 45 compared to the other parts of the connecting element 40 can be achieved.
  • FIG 12 is the impact hole 65 after the impact of an element, for example a projectile 66.
  • the projectile 66 has individual filaments 67 of the plastic fiber bundles 51 stretched from the fiber board 50 and in a region of the hammer hole 65 in the intermediate plate 24 is moved into it.
  • a part 68 has flaked off on the side of the intermediate plate 24 facing the intermediate space 57 and has deformed the filler material 58 in the intermediate space 57.
  • To repair proceed as follows: First, the area of the impact hole 65, which is located in the intermediate plate 24, is filled with a resin 69 by pressing in the resin 69. Then a suitably cut replacement piece 70 for the fiber board 50 is used.
  • the replacement piece 70 has plastic fibers embedded in a plastic matrix and preferably has the same structure as the plastic plate 50.
  • the replacement piece 70 can be removed from a replacement fiber board by cutting out a suitable piece and applied to the part of the fiber board 50 that is inside the tipping hole 65 is arranged.
  • the resin 69 or other bonding agent can be used to bond the replacement piece 70 to the fiberboard 50.
  • the area of the knock-in hole 65 in the outer panel 22 is filled with a filler 71 and essentially leveled with the outer surface 25 ( Figure 14 ).
  • the invention relates to a protective plate arrangement 20 and a method for repairing a knock-in hole 65 in the protective plate arrangement 20.
  • the protective plate arrangement 20 has three textile-reinforced concrete slabs 21 which are connected to one another via connecting elements 40 to form a unit.
  • the textile-reinforced concrete slabs 21 form an outer plate 22, an inner plate 23 and an intermediate plate 24.
  • Between the outer plate 22 and the intermediate plate At least one fiber board 50 with fiber bundles 51 made of glass and / or aramid fibers bound in a plastic matrix 53 is arranged.
  • An intermediate space 57 is present between the intermediate plate 24 and the inner plate 23.
  • the space 57 can be filled with air and / or a solid filler material 58 that can be plastically and / or elastically deformed. Additional plates or layers can be omitted.

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  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (18)

  1. Ensemble de plaques de protection (20) destiné à protéger contre des tirs et/ou des explosions, comprenant des plaques de béton (21 à 24) qui sont reliées entre elles par des éléments d'assemblage (40),
    l'ensemble de plaques de protection (20) comprenant :
    au moins trois plaques de béton (21) à armature textile, qui forment une plaque externe (22), une plaque interne (23) et une plaque intermédiaire (24),
    au moins une plaque de fibres (50) qui présente des faisceaux de fibres en matière plastique (51) noyés dans une matrice en matière plastique (53), la plaque de fibres (50), au nombre d'au moins une, étant disposée entre la plaque externe (22) et la plaque intermédiaire (24),
    la plaque interne (23) étant disposée à distance de la plaque intermédiaire (24), en formant un espace (57),
    et les éléments d'assemblage (40) étant noyés avec une première extrémité (41) dans la matrice en béton (31) de l'une des plaques de béton (21) à armature textile et avec une deuxième extrémité (42) dans la matrice en béton (31) d'une autre des plaques de béton (21) à armature textile.
  2. Ensemble de plaques de protection selon la revendication 1, caractérisé en ce que la plaque de fibres (50), au nombre d'au moins une, est appliquée avec une face directement contre la plaque externe (22) et avec l'autre face directement contre la plaque intermédiaire (24).
  3. Ensemble de plaques de protection selon la revendication 1 ou 2, caractérisé en ce qu'un élément d'assemblage (40), qui est noyé avec une première extrémité (41) dans la matrice en béton (31) de la plaque externe (22), s'étend au-delà de la plaque de fibres (50), au nombre d'au moins une.
  4. Ensemble de plaques de protection selon l'une des revendications précédentes, caractérisé en ce qu'un élément d'assemblage (40), qui est noyé avec une première extrémité (41) dans la matrice en béton (31) de la plaque externe (22), ne traverse pas une face externe (25) de l'ensemble de plaques de protection (20).
  5. Ensemble de plaques de protection selon l'une des revendications précédentes, caractérisé en ce qu'un élément d'assemblage (40), qui est noyé avec sa deuxième extrémité (42) dans la matrice en béton (31) de la plaque interne (23), ne traverse pas une face interne (26) de l'ensemble de plaques de protection (20).
  6. Ensemble de plaques de protection selon l'une des revendications précédentes, caractérisé en ce qu'au moins un élément d'assemblage (40) présente une aile de liaison (44) qui relie la première extrémité (41) à la deuxième extrémité (42) et traverse complètement la plaque intermédiaire (24).
  7. Ensemble de plaques de protection selon la revendication 6, caractérisé en ce que l'aile de liaison (44) s'étend dans au moins une portion (44a, 44b) en étant inclinée sous un angle d'inclinaison (α, α1, α2) par rapport à un plan (E) qui est orienté à angle droit par rapport à la plaque externe (22) et/ou la plaque intermédiaire (24) et/ou la plaque interne (23).
  8. Ensemble de plaques de protection selon l'une des revendications précédentes, caractérisé en ce que l'élément d'assemblage (40), au nombre d'au moins un, présente une aile transversale (43) respectivement à une première extrémité (41) et/ou à une deuxième extrémité (42).
  9. Ensemble de plaques de protection selon la revendication 7 et selon la revendication 8, caractérisé en ce que l'aile de liaison (44) est réalisée sous une forme moins robuste que les ailes transversales (43).
  10. Ensemble de plaques de protection selon l'une des revendications précédentes, caractérisé en ce que les éléments d'assemblage (40) présentent au moins un premier élément d'assemblage (40a) et au moins un deuxième élément d'assemblage (40b) qui sont disposés de manière décalée dans au moins une direction parmi deux directions dans l'espace (x, y) qui définissent un plan disposé parallèlement à la plaque externe (22).
  11. Ensemble de plaques de protection selon la revendication 10, caractérisé en ce que le premier élément d'assemblage (40a), au nombre d'au moins un, relie la plaque externe (22) à la plaque intermédiaire (24), et en ce que le deuxième élément d'assemblage (40b), au nombre d'au moins un, relie la plaque intermédiaire (24) à la plaque interne (23).
  12. Ensemble de plaques de protection selon l'une des revendications précédentes, caractérisé en ce que les éléments d'assemblage (40) présentent des faisceaux de fibres (45) qui sont noyés dans une matrice en matière plastique.
  13. Ensemble de plaques de protection selon l'une des revendications précédentes, caractérisé en ce que chacune des plaques de béton (21) présente au moins une couche textile (30) qui est constituée d'une structure non tissée en forme de grille de faisceaux de fibres (32).
  14. Ensemble de plaques de protection selon la revendication 13, caractérisé en ce que la plaque intermédiaire (24) présente au moins trois couches textiles (30) qui sont noyées dans la matrice en béton (31) de la plaque intermédiaire (24), à distance les unes des autres.
  15. Ensemble de plaques de protection selon la revendication 13 ou 14, caractérisé en ce que le nombre de couches textiles (30) dans la plaque intermédiaire (24) est supérieur à celui dans la plaque externe (22) et/ou dans la plaque interne (23).
  16. Ensemble de plaques de protection selon l'une des revendications précédentes, caractérisé en ce que l'espace (57) est rempli avec un matériau de remplissage (58) solide.
  17. Ensemble de plaques de protection selon la revendication 16, caractérisé en ce que le matériau de remplissage (58) peut être déformé de manière élastique et/ou plastique.
  18. Procédé de réparation d'un ensemble de plaques de protection (20) selon l'une des revendications précédentes, présentant un trou d'impact (65), le procédé comprenant les étapes suivantes :
    - remplissage de la région du trou d'impact (65) de la plaque intermédiaire (24), avec une résine (69),
    - insertion d'une pièce de remplacement (70) pour la plaque de fibres (50), dans le trou d'impact (65), sur la plaque de fibres (50) existante,
    - remplissage de la région du trou d'impact (65) dans la plaque externe (22), avec une masse de rebouchage (71).
EP17751282.9A 2016-08-11 2017-07-24 Ensemble plaque de protection et procédé de réparation d'une telle plaque de protection Active EP3497395B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016114927.6A DE102016114927B4 (de) 2016-08-11 2016-08-11 Schutzplattenanordnung und Verfahren zur Reparatur einer solchen Schutzplattenanordnung
PCT/EP2017/068617 WO2018028975A1 (fr) 2016-08-11 2017-07-24 Ensemble plaque de protection et procédé de réparation d'une telle plaque de protection

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EP3497395A1 EP3497395A1 (fr) 2019-06-19
EP3497395B1 true EP3497395B1 (fr) 2020-08-19

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US (1) US20190219367A1 (fr)
EP (1) EP3497395B1 (fr)
AR (1) AR109307A1 (fr)
DE (1) DE102016114927B4 (fr)
IL (1) IL264754B (fr)
WO (1) WO2018028975A1 (fr)

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DE102020112101A1 (de) * 2020-05-05 2021-11-11 Technische Universität Dresden, Körperschaft des öffentlichen Rechts Verbundbauteil, Bauteil, und Verfahren zum Herstellen eines Verbundbauteils

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US7311964B2 (en) 2002-07-30 2007-12-25 Saint-Gobain Technical Fabrics Canada, Ltd. Inorganic matrix-fabric system and method
US20090282968A1 (en) 2004-07-01 2009-11-19 Colliflower Anne B Anti-ballistic materials and process
AU2005337909A1 (en) * 2004-12-01 2007-06-21 Life Shield Engineered Systems, Llc Shrapnel and projectile containment systems and equipment and methods for producing same
DE202007014526U1 (de) 2007-10-17 2009-03-05 Ducon Gmbh Bauelement, insbesondere plattenförmiges Bauelement aus Beton und Betonzuschlagsmaterial
CL2009000370A1 (es) 2008-03-03 2009-10-30 United States Gypsum Co Sistema de paneles, que comprende un armazon y un panel cementicio, que contiene un nucleo cementicio de una fase curada constituida de cemento inorganico, mineral inorganico, relleno puzolanico, policarboxilato y agua, y una capa de recubrimiento unida a una superficie de la fase curada.
CN201952936U (zh) 2010-12-10 2011-08-31 同济大学 一种新型的夹芯式防爆防弹墙
DE102012101498A1 (de) * 2012-01-03 2013-07-04 Groz-Beckert Kg Bauelement und Verfahren zur Herstellung eines Bauelements
US20140137727A1 (en) * 2012-11-05 2014-05-22 Hipertex Armor Group, LLC Blast-resistant reinforced cementitious panels and reinforcing structures for use therein
DE102013011083A1 (de) * 2013-07-02 2015-01-08 Groz-Beckert Kg Verfahren zum Herstellen eines Betonbauteils, vorgefertigtes Bauelement eines Betonbauteils sowie Betonbauteil
DE102014006115B3 (de) * 2014-04-29 2015-05-21 Thiem Security Solutions Gmbh Schutzvorrichtung für einen Gebäudeteil
WO2016054625A2 (fr) 2014-10-03 2016-04-07 Antiballistic Security And Protection, Inc. Matériaux de structure et systèmes associés

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Also Published As

Publication number Publication date
IL264754B (en) 2022-03-01
DE102016114927A1 (de) 2018-02-15
DE102016114927B4 (de) 2018-04-12
AR109307A1 (es) 2018-11-21
US20190219367A1 (en) 2019-07-18
EP3497395A1 (fr) 2019-06-19
WO2018028975A1 (fr) 2018-02-15

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