US20130019742A1 - Blast protected unit and system - Google Patents

Blast protected unit and system Download PDF

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Publication number
US20130019742A1
US20130019742A1 US13/578,545 US201113578545A US2013019742A1 US 20130019742 A1 US20130019742 A1 US 20130019742A1 US 201113578545 A US201113578545 A US 201113578545A US 2013019742 A1 US2013019742 A1 US 2013019742A1
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United States
Prior art keywords
blast
protected unit
building structure
blast protected
present
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US13/578,545
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English (en)
Inventor
Philippe Lecarpentier
Alex Eytan
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Global Owl Ltd
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Global Owl Ltd
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Priority to US13/578,545 priority Critical patent/US20130019742A1/en
Assigned to GLOBAL OWL LIMITED reassignment GLOBAL OWL LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EYTAN, ALEX, LECARPENTIER, PHILIPPE
Publication of US20130019742A1 publication Critical patent/US20130019742A1/en
Abandoned legal-status Critical Current

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    • 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
    • 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
    • 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
    • E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
    • E04B1/34315—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts
    • E04B1/34321—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts mainly constituted by panels
    • 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
    • E04H9/06—Structures arranged in or forming part of buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D5/00—Safety arrangements
    • F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
    • F42D5/045—Detonation-wave absorbing or damping means
    • 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
    • E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
    • E04B1/34315—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts
    • E04B1/34317—Set of building elements forming a self-contained package for transport before assembly

Definitions

  • the present invention generally relates to a blast and ballistic protection of contents of an enclosed space, especially people and equipment against injury and damage caused by fragments of the window and the wall or blast overpressure, and more specifically, to a building construction which may be used for protection of said people and/or equipment.
  • Occupants of buildings subjected to explosive blasts risk the possibility of death or injury not only by the blast itself and primary projectiles set in motion by the blast, but also by projectiles which are originally part of the structure walls. These projectiles might be detached from the walls and accelerated inwards by the external shock wave.
  • a blast easily fragments the exterior and interior boards as the walls bend inward from the blast. The fragments become large projectiles, in many cases exceeding the destructive capacity of projectiles from the blast itself.
  • US patent application No. 2005/0144900 discloses blast resistant prefabricated wall panels contain at least one panel consisting of two structural boards having a thermoset resin-impregnated fiber reinforcing layer therebetween and extending from sides of the panel, the extension wrapped at least partially around metal sole and top plates of a metal sole plate, top plate, and stud construction.
  • the panels are capable of resisting explosive blasts without forming secondary projectiles, and are preferably attached to a building structure by energy absorbing deformable brackets.
  • the invention disclosed in this patent application is not portable, and therefore is not able to provide protection at a preselected location.
  • the structure of this invention is clumsy and requires thick walls.
  • U.S. Pat. No. 4,718,356 discloses a system for protecting exterior building walls against damage from pressure waves generated by explosions on the building exterior.
  • Exterior walls are constructed of multiple wall panels mounted in a circumferential framework of building elements formed by columns, a top surface of the floor below the wall and bottom surface of the floor above the wall.
  • a series of guide tracks mounted in the circumferential surfaces extend perpendicular to the wall panel towards the interior of the building.
  • Guide blocks on the perimeter of the wall panel engage the guide tracks so that the wall panel can slidably move along the tracks when a predetermined threshold force is applied to the exterior of the panel.
  • An adjustable brake on cooperating with the guide blocks and tracks, permits an accurate setting of the threshold force under which inward movement of the panel commences as well as the relatively constant force that acts during sliding.
  • This invention is also limited by its clumsy construction and it luck of portability which might be very important in specific situations.
  • US patent application 2006/0032160 discloses a blast resistant window blind system which includes a blind system.
  • the blind system comprises: a plurality of parallel blind slats, a plurality of spaced pane engaging members, and first and second mounting bodies coupled to the pane engaging members and anchor members disposed at first and second opposite ends of said opening, wherein the pane engaging members are secured to the mounting bodies and coupled thereby to the structure.
  • At least one energy dampening device is coupled to the pane engaging members, allowing the pane engaging members to extend a selected amount toward the inside of the structure upon impact of the window pane, wherein the blind system and pane engaging members cooperate to restrain the window pane from being blown into the inside of the structure and conform to the inside surface of the window pane during impact therewith to distribute the restraining force across the window pane.
  • the invention disclosed in this patent application is directed to blast protection of windows (and not walls), so that in cases of massive blast event, this system will not be stable to protect the interior of a structure.
  • the protective layer of the system (the vertical blind slats) and the energy absorption units (the tensioning springs) cannot provide blast and ballistic protection from massive blasts characterized by an impulse of a magnitude of hundreds of si.msec.
  • this system is non-adjustable, and therefore is not able to provide protection to any existing area of a wall and/or a window.
  • U.S. Pat. No. 6,212,840 discloses a retrofit method for protecting the contents of a structure having walls and window frames in the walls in the event of a blast outside the structure.
  • the method is effected by (a) providing a flexible and stretchable woven sheet including strands of ballistic thread; (b) attaching a first portion of the flexible and stretchable woven sheet via a flexible adhesive to an inward-facing surface of at least one wall of the structure; and (c) attaching a second portion of the flexible and stretchable woven sheet to at least one window frame in the at least one wall; the flexible and stretchable woven sheet and the flexible adhesive being capable of stretching under impact of the blast, thereby reducing disintegration of the at least one wall and securing the window frame in the wall upon the blast, preventing fragments from the wall and the window frame from being thrown into an interior of the structure by the blast.
  • U.S. Pat. No. 6,212,840 is limited to protection of windows only, and is not able to provide protection in case of massive blast events (e.g., 1000 psi.msec.).
  • This system does not comprise energy absorbing units which are able to absorb massive energy impulses delivered through elongated members.
  • a blast event with a relatively weak impulse of 65 si.msec. dislocates the system and disassembles it.
  • this system is also non-adjustable, and therefore is not able to provide protection to any existing area of a wall and/or a window.
  • This building construction should also be easy for construction in any preselected location by a person not skilled in constructing building construction (e.g., with foldable parts, portable, etc.), and preferably will have a look of a standard and simple building construction. Moreover, this building construction should also be relocateable, transportable, portable, permanent, fixed to a specific construction, modular, easy for construction by a layman, and of course blast and/or ballistic protected. Moreover, it would be desirable to provide a lightweight and easy for installation blast protecting system which will be stable to massive blast impulses.
  • This system should be easy for installation in any preselected location by unskilled personnel. Moreover, this system should be adjustable to a variety of dimensions in order to provide protection to any existing wall of any size (e.g., characterized by height of between about 100 cm to about 10 meter). Furthermore, this system should also be reliable, relocateable, replaceable, upgradable, transportable, lightweight, modular, and of course blast and/or ballistic protected.
  • the blast protected unit comprises:
  • the blast protected unit is adapted to be connected to a building structure, such that a protection from blasts is provided to the internal portion of the building structure, the internal portion is located at the second side of the protecting panel.
  • blast protected unit as defined above, wherein the blast protected unit is configurable into at least two configurations: (i) a disassembled configuration in which the blast protected unit is transportable; and, (ii) an assembled configuration in which the blast protected unit is connected to the building structure.
  • blast protected unit as defined above, wherein the blast protected unit has characteristics selected from the group consisting of: relocateable, transportable, portable, permanent, fixed to a specific construction, modular, ease of construction, kit-like, expandable, rapidly deployable, lightweight, replaceable, upgradable, blast protected, blast and ballistic protected, or any combination thereof.
  • blast protected unit as defined above, wherein the blast protected unit is further adapted to protect the building structure from a factor selected from the group consisting of: wind, tornado, hurricane, earthquake, a weather related conditions, a ballistic attack, any pushing force, or any combination thereof.
  • blast protected unit as defined above, wherein the blast protected unit is adapted to be used as a pre-detonating unit adapted to at least partially mitigate impact of a ballistic attack on the building structure, the blast protected unit is connectable to the building structure via at least one connecting shaft at a predetermined distance from the building structure.
  • the building construction comprises:
  • the at least one blast protected unit is adapted to be seated and connected to at least one of opening, such that a protection from blasts is provided to the internal portion of the building structure, the internal portion is located at the second side of the protecting panel.
  • phenolic foam polyurea foam, glass fibers, polyetheline fibers, carbon fibers, aramid fibers, Polystyrene, plastic foam, rockwool, composite materials, a lightweight building material, and any combination thereof.
  • the frameless structure comprises a plurality of blast protected units each of which comprises:
  • blast protected units are adapted to be connected to each other so as to provide the frameless structure, such that the internal portion of the frameless structure is protected from blasts, the internal portion is located at the second side of the protecting panel.
  • blast protected units have characteristics selected from the group consisting of: relocateable, transportable, portable, permanent, fixed to a specific construction, modular, ease of construction, kit-like, expandable, rapidly deployable, lightweight, replaceable, upgradable, blast protected, blast and ballistic protected, or any combination thereof.
  • the blast protecting system comprises:
  • the energy absorption units are configured to be deformed under a force applied against the elongated elements and the at least one protecting layer, such that the energy created by a blast is at least partially absorbed by the energy absorption units via the elongated elements.
  • blast protecting system as defined above, wherein the blast protecting system has characteristics selected from a group consisting of: relocateable, transportable, portable, fixed to the construction, modular, ease of installation, kit-like, provided in a rolled kit, replaceable, upgradable, expandable, rapidly deployable, easy for installation by a layman, lightweight, blast protected, blast and ballistic protected, or any combination thereof.
  • the method comprises steps of:
  • a method for protecting an interior of a building structure comprises steps of:
  • FIG. 1 is a specific embodiment of the blast protecting unit of the present invention
  • FIGS. 2 a - b are a section view and an plan view of the blast protecting unit the present invention.
  • FIG. 3 is a specific embodiment of a building structure which is a framework according to a specific embodiment of the present invention.
  • FIG. 4 schematically illustrates the method in which the building construction of the present invention is configurable into at least two configurations
  • FIGS. 5 a - d illustrate specific embodiments of the building construction of the present invention in its assembled configuration from different points of view.
  • FIG. 6 is an exemplary illustration of a fragment of the building construction before a blast event
  • FIG. 7 is an exemplary illustration of another fragment of the building construction before a blast event
  • FIG. 8 is an exemplary illustration of a fragment of the building construction from FIG. 6 , after being exposed to an experimental blast event;
  • FIG. 9 presents the energy absorption units of the present invention in their deformed state following a blast event, as presented in FIG. 8 from another point of view;
  • FIG. 10 presents the energy absorption units of the present invention in their deformed state following a blast event, as presented in FIGS. 8-9 from the interior of the building construction of the present invention
  • FIG. 11 schematically illustrates the building construction of the present invention in its specific embodiment
  • FIG. 12 schematically illustrates the building construction of the present invention with two pre-detonating blast protecting units
  • FIG. 13 schematically illustrates a large building construction which is constructed from three building constructions of the present invention
  • FIG. 14 schematically illustrates a frameless structure according to a specific embodiment of the present invention.
  • FIG. 15 is a schematic illustration of a specific embodiment of the blast protecting system of the present invention.
  • FIG. 16 is a schematic illustration of a section view of the blast protection system of the present invention.
  • FIG. 17 is a schematic illustration of a plan view of the blast protection system of the present invention.
  • FIG. 18 is an exemplary illustration of a specific embodiment of the present invention which was installed within an existing structure
  • FIG. 19 is an exemplary illustration of a specific embodiment of the present invention which was installed within an existing structure, from the interior side of the structure;
  • FIG. 20 is an exemplary illustration of a specific embodiment of the present invention which was installed within an existing structure, after a blast event, from the interior side of the structure;
  • FIG. 21 is an exemplary illustration of a specific embodiment of the present invention which was installed within an existing structure, after a blast event, from the exterior side of the structure;
  • blast refers hereinafter to any event which may actuate a predetermined force on a static object (e.g., on a protecting panel).
  • the term blast may refer to a strong current of air which is a result of an explosion.
  • the term blast may refer to a ballistic attack on a static object.
  • the term blast may refer to a combination of an explosion and a ballistic event.
  • the term ‘blast’ refers hereinafter to any type of known in the art attack which may be performed on a static or any other object.
  • the term blast may refer to one of the following: blast pressure; small-medium calibre projectiles; ballistic fragments; or any combination thereof.
  • the blast pressure may be an explosive against 3250 lbs TNT.
  • the small-medium calibre projectiles may be ballistic attacks of about 5.56 to about 7.62 mm Assault Rifle projectiles.
  • the ballistic fragments may be fragments of rockets, artillery and mortars casings.
  • energy absorption unit refers hereinafter to a deformable unit (e.g. a metal unit) which is adapted to absorb the energy that causes its deformation, and compensates this deformation by changing its physical dimensions.
  • shaft refers hereinafter to rod, pole, column, bar, level, pale, roost, balk, beam, girder, flitch, rafter, or any combination thereof.
  • anti spall refers hereinafter to an anti spalling layer which is adapted to prevent spalls from being projected into said building construction in case of a blast
  • hidden manner refers hereinafter to any conventional method or means for ensuring that the energy absorption units do not substantially protrude beyond the building structure of the present invention.
  • this term may refer to a manner in which the energy absorbing units are not visible to the eye.
  • pre-detonating refers hereinafter to any effect which may to cause a detonation of any attacking object (e.g., indirect fire, a rocket, a mortar shell, a missile, etc.) at a predetermined distance from the building construction of the present invention, such that the results of the attack on said building construction are mitigated.
  • any attacking object e.g., indirect fire, a rocket, a mortar shell, a missile, etc.
  • frameless structure refers hereinafter to a structure which may be assembled merely from blast protected units without the need the use a framework or any other building structure, so as to provide a space which is protected from blasts.
  • building structure refers hereinafter to any known in the art building structure such as a house, a room, a lodge, a house, a cabin, a caravan, a vehicle, or any other known in the art structure in which people and/or object may be located.
  • blast protecting unit is a building unit which may be used for increasing the protection of any existing building structure by being connected to the same via any conventional means.
  • building construction refers hereinafter to any construction which comprises a building structure and a blast protecting unit or at least one of them.
  • dimensions refers hereinafter to a measurement in length, width or height of a specific component of the present invention.
  • module refers hereinafter to a quantity of one unit of the system the present invention.
  • the present invention discloses a blast protected unit which is configured to withstand blasts, and to protect any existing building structure.
  • the present invention discloses a blast protected unit 100 for blast protection.
  • the blast protected unit 100 comprises a protecting panel 14 having a first side 7 and a second side 8 .
  • protecting panel 14 is connected to a sub-frame 16 which circumscribes the protecting panel 14 .
  • the connection of protecting panel 14 to sub-frame 16 is performed via a plurality of energy absorption units 30 ( FIG. 2 a ).
  • Each of energy absorption units 30 has a first end 32 and a second end 34 .
  • the first end 32 of each of the energy absorption unit 30 is connected to protecting panel 14 via a connector 15
  • second end 34 of each of the energy absorption units 30 is connected to sub-frame 16 , such that the blast protected unit 100 is formed.
  • blast protected unit 100 is adapted to be connected to building structure 10 , such that a protection from blasts is provided to the internal portion 17 of building structure 10 .
  • internal portion 17 is located at second side 8 of protecting panel 14 .
  • blast protecting unit 100 is configured to protect the internal portion 17 of the same by absorbing at least part of the energy of the blast by energy absorption units 30 .
  • energy absorption units 30 are configured to deform under a blast force 5 applied against first side 7 of protecting panel 14 , allowing the protecting panel to move away from and remain in proximity to sub-frame 16 .
  • This deformation might be a plastic deformation. According to another embodiment, this deformation might be elastic.
  • energy absorption units 30 are positioned between panel 14 and the sub-frame 16 in a hidden manner so as to provide an appearance of a regular non-protected blast protected unit.
  • the hidden manner is adapted to hide from external observers the capabilities of the blast protected unit to provide protection from blasts. This characteristic of the present invention may be very important for hiding the capabilities of a building structure to be protected from blasts, and to prevent unwanted attention of external observers towards the building structure.
  • sub-frame 16 is connectable to building structure 10 via a screw means 11 or any fastening means.
  • the connection of sub-frame 16 to building structure 10 is very simple and convenient so as to provide protection in a fast and effective manner.
  • panel 14 comprises at least one anti spall layer 40 and a ballistic layer 42 .
  • Anti spall layer 40 is adapted to prevent spalls from being projected into building structure 10 in case of a blast event.
  • Ballistic layer 42 is adapted to provide ballistic protection to content within building struction 10 .
  • anti spall layer 40 and ballistic layer 42 are connected to connector 15 and held by it.
  • anti spall layer 40 may be made of any suitable high strength material which is able to prevent fragments of broken panel or of any other material (e.g., concrete, glass, etc.) from entering said building construction.
  • the material might be for example: Kevlar®, Spectra®, Dyneema®, etc.
  • ballistic layer 42 may be made of any material which is able to provide ballistic and anti-fragmentation protection.
  • ballistic layer 42 might be a ballistic plate (e.g., E-glass).
  • panel 14 might be comprise a materials selected from a group consisting of: phenolic foam, Polyurea foam glass fibers, carbon fibers, aramid fibers, polyethylene fibers Polystyrene, plastic foam, rockwool, composite materials, a lightweight material that can be used for construction of prefabricated structures, or any combination thereof.
  • panel 14 are characterized by characteristics which are selected from a group consisting of: fluid isolating, moisture isolating, noise isolating, thermally isolating, fireproof, with ballistic protection properties, flexible, energy absorbing, lightweight, prefabricated, or any combination thereof.
  • blast protected unit 100 may be connected to any building structure in order to protect its internal portion from blast events.
  • the blast protected unit 100 may be connected to the external, to the internal or to an opening of any building structure.
  • blast protected unit 100 may be connected to the wall, the ceiling, or the floor of any building structure.
  • the building structure may be one of the following structures: a container, a caravan, manner a permanent structure with walls, a framework, an office, an industrial facility, a hotel, a residence, an embassy, and any combination thereof.
  • the building structure to which the blast protected unit of the present invention may be connected is adapted to form a building construction which may provide protection from blasts and/or ballistic protection at any preselected location in which it is located (e.g., in enemy territory during a war).
  • the portability characteristic of the present invention provides the user of the invention with the ability to isolate and protect any selected space, and is achieved by the unique lightweight and convenient design.
  • the building construction of the present invention may be used for protection of soldiers and commanders from blast events and ballistic attacks, when they are in a hostile environment in a preselected location.
  • the construction of the building construction of the present invention can be done easily and in a fast manner as will be described below.
  • the present invention may be, for example, used as a command post, communications post, storage facility, eating facility, operating theatre or clinic, sleeping quarters, dining quarters and in fact any structure that a military, police, paramilitary or civilian organization may require in a threatening environment.
  • FIGS. 3-5 illustrate a specific embodiment of a blast protected unit and a building structure of the present invention which form a building structure 200 .
  • building structure 200 comprises two main of elements of different types: (i) a building structure which is provided as a framework 50 ; and (ii) a plurality of blast protected units 100 .
  • the framework 50 has a plurality of shafts 55 mechanically connected to each other, such that a plurality of openings 60 is formed.
  • Each of openings 60 is characterized by a predetermined size to which the blast protected unit of the present invention is fitted.
  • each blast protected unit 100 may be placed and connected to its predefined opening 60 (As illustrated in FIGS. 4 and 5 ).
  • framework 50 is illustrated without blast protected units connected to the same.
  • blast protected units 100 may be used instead of the walls, the ceiling, or the floor of framework 50 .
  • shafts 55 are perpendicular to each other, such that building structure 50 has a form of a rectangle box.
  • framework 50 may be has any geometrical form such as a polygonal, a circular, an elliptical, etc.
  • the building structure and the blast protected units may be assembled and disassembled at any preselected location, and transported to different locations.
  • framework 50 may be transported separately to a preselected location, and the blast protected units 100 may be connected to it afterwards.
  • This method may provide a blast protected building construction 200 .
  • the building structure is adapted to be protected with a plurality of the blast protected units.
  • the blast protected units of this embodiment may be used to replace the walls, the floor and the ceiling of building construction 200 .
  • FIG. 4 schematically illustrates one embodiment of the present invention in which the building construction 200 of the present invention is configurable into two configurations: (i) a disassembled configuration 102 in which the building construction 200 is transportable; and, (ii) an assembled configuration 104 in which the building construction 200 is adapted to be assembled at a preselected location, and to provide protection to content within building structure 50 .
  • the framework 50 can be easily folded and unfolded.
  • shafts 55 are arranged to provide disassembled configuration 102 of the building construction in which the building structure and the blast protected units may be transported.
  • shafts 55 are arranged to provide an assembled configuration 104 .
  • the blast protected unit 50 is also configurable into two configurations: (i) a disassembled configuration 102 in which the blast protected unit is transportable; and, (ii) an assembled configuration 104 in which the blast protected unit is connected to building structure 100 , such that a building construction 200 is formed.
  • building construction 200 of the present invention may be provided in disassembled configuration 102 in which it is in a compact packed form, especially a flat-pack.
  • the building construction 200 of FIG. 4 is also a kit which may provide protection from blasts at any preselected location.
  • At least some of shafts 55 are pivotally connected to each other.
  • the corners of the building structure (of framework 50 ) are rigid or hardened.
  • blast protected unit 100 is stable to a blast impulse of between about 50 psi.msec to about 600 psi.msec. and blast pressures in excess of 1500 psi.
  • energy absorption units 30 are configured to withstand multiple numbers of blasts.
  • part of the energy absorption units may be are adapted to withstand one blast, and another set of energy absorption units are adapted to withstand another blast which also might be more powerful.
  • the energy absorbing units of the present invention have been designed to withstand maximum load capacity. Any force in excess of that load will result in the EAU being sheared.
  • the total amount of EAU units connected to each frame defines therefore the maximum load that can be transferred into the sub-frame of the present invention. If an increased force is applied than the energy absorbing units will fail and the panel will disconnect from the sub-frame.
  • the panel may disconnect from the sub-frame after one or more blast events.
  • the panel may disconnect from the sub-frame when a predetermined level of blast occurs, so as to prevent collapse or damage of the building structure itself.
  • blast protected unit 100 with the energy absorption units in a deformed state after a blast is replaceable so as to provide protection to the internal portion of the building structure from additional blasts.
  • a blast event which deforms the blast protecting unit, it can be easily replaced by new blast protecting unit. This replacement may be done just by mechanically connecting the sub-frame of the new blast protecting unit to the building structure (or the framework).
  • the blast protected unit of the present invention is able to provide rapid and reliable protection from blasts at any preselected location in which the building structure is located.
  • FIGS. 5 a - d illustrate specific embodiments of the building construction 200 of the present invention in its assembled configuration 104 from different points of view.
  • FIG. 5 a the building construction of the present invention is schematically illustrated from a side view.
  • FIG. 5 a the building construction of the present invention is schematically illustrated from a side view.
  • this figure also presented a blast and ballistic resistant window, according to a specific embodiment of the present invention.
  • FIG. 5 b the building construction of the present invention is schematically illustrated from a side view of its narrow part.
  • this figure also presented a blast and ballistic resistant door, according to a specific embodiment of the present invention.
  • FIG. 5 c a cross-section the building construction of the present invention is schematically illustrated from an upper point of view.
  • FIG. 5 d a cross-section the building construction of the present invention is schematically illustrated from a side point of view.
  • the building construction 200 and/or blast protected unit 100 and/or building structure 50 may have characteristics of the present invention is characterized by its ability to be: relocateable, transportable, portable, permanent, fixed to a specific construction, modular, easy for construction by a layman, lightweight, modular, configurable into large building structures, blast protected, foldable, unfoldable, assembleable, disassembleable, or any combination thereof.
  • the combination of these properties gives the present invention its novel and non-obvious advantages over the prior art.
  • Embodiments of the invention are, in their assembled or disassembled configurations adapted for transporation by air, sea or land to and from the most hostile of environments.
  • the building construction of the present invention might be deployed, constructed and assembled in any preselected location, by any personnel non-expert in the field of building construction (for example a squad of soldiers or paramilitary personnel not specializing in construction or engineering).
  • the invention might be constructed on, within or adjacent to an existing building construction, and embodiments are provided such that individual modules of the invention may be used to construct a large building construction, made of number of singular building constructions connected to each other (as illustrated in FIG. 13 ).
  • the building construction of the present invention is easy for construction and is prefabricated makes it easy for use by a non-skilled person (a layman). For example, soldiers who are not skilled in construction of buildings, might be able easily and quickly construct a protect construction is any preselected location.
  • blast protected unit 100 may protect the building structure and its interior from a factor selected from the group consisting of: wind, tornado, hurricane, earthquake, a weather related conditions, a ballistic attack, any pushing force, or any combination thereof.
  • the building structure 10 may comprise protecting windows, protecting doors, internal division to rooms, etc. These elements may be characterized by similar characteristics (e.g., energy absorption units) as the blast protected units of the present invention.
  • the building construction of the present invention may be stable to any expected and unexpected weather conditions such as: strong winds, rain, tornado, hurricanes, etc.
  • the system of the present invention is also stable to earthquakes, or any other factors which might apply external forces on it.
  • the force applied against blast protected units 100 might be a force selected from a group consisting of: a force of a wind, a tornado generated force, a hurricane generated force, a force generated by an earthquake, a weather related force, any other pushing force, or any combination thereof.
  • the energy absorption units might absorb the energy produced by these forces, and thereby, in some conditions, prevent damage to the building construction.
  • the present invention discloses a method for rapidly deploying a building construction and protecting objects via the building construction in a theatre of operations.
  • the method is adapted to provide protection from blasts to the objects located within the building construction in the theatre of operations.
  • the objects are selected from a group consisting of: military forces, police forces, soldiers, first-aid crew, press crew, military equipment, electronic equipment, or any combination thereof.
  • the theatre of operations is selected from a group consisting of: a hostile environment, a battlefield, a city, a village, in a mountainous area, or any combination thereof.
  • building construction is adapted to be deployed in the theatre of operations for providing protection to the forces in a time of between about 10 minutes and about two hours.
  • the building construction is provided to the theatre of operations from high altitude via transporting means selected from a group consisting of: an airplane, a jet plane, a helicopter, a crane, or any combination thereof.
  • FIGS. 6-10 schematically illustrate a specific embodiment of the present invention.
  • FIGS. 6-7 exemplary illustrated a building construction 300 before a blast event
  • FIGS. 8-10 exemplary illustrated a building construction 300 after a blast event.
  • building structure 210 is connected to blast protected unit 220 via screw means 222 .
  • Blast protected unit 220 is constructed of protecting panel 215 which is connected to a non-continuous sub-frame 217 via energy absorbing units 216 .
  • building structure 210 is made of metal, and sub-frame 217 is made of aluminum profiles.
  • FIG. 7 exemplary illustrates building structure 210 with two blast protected units 220 to the same before a blast event.
  • FIG. 8 which exemplary illustrates the fragment of building construction from FIG. 6 , after being exposed to an experimental blast event.
  • the experimental blast event which was performed by the inventors was performed with a blast impulse of about 150 psi.msec. In this experiment it was proved that the building construction is stable to this kind of blasts. In another experiments it was proved that the building construction of the present invention is stable to blasts with blast impulse of between about 50 psi.msec to about 600 psi.msec. and blast pressures in excess of 1500 psi.
  • energy absorbing units 216 are in their deformed configuration after a blast event and after absorbing at least part of the blast's energy.
  • blast protected unit 220 can be easily replaced with a new blast protected unit so as to renew the protection to the interior of building structure 210 .
  • panel 215 has moved to the internal side of building structure 210 , and has stopped at a predetermined distance.
  • FIG. 9 also shows energy absorption units 216 are in their deformed state following a blast 30 event, as presented in FIG. 8 from another point of view.
  • FIG. 9 it can also be clearly seen how the combination of a blast protected unit with a building structure form a building construction 300 which is protected from blasts.
  • FIG. 10 illustrates the interior portion of building construction 300 .
  • Energy absorption units 216 in the figure are in their deformed state following the blast event.
  • the blast protected units 220 can be easily replaced by connecting new blast protected units to building structure 210 so as to renew the protection the interior of the same.
  • FIG. 11 schematically illustrates a specific embodiment of building construction 400 of the present invention.
  • building construction 400 is provided in its assembled configuration.
  • building construction 400 comprises two main types of elements: (i) blast protected units 320 which are connected to (ii) a building structure 310 .
  • blast protected units 320 which are connected to (ii) a building structure 310 .
  • the building constriction 400 of FIG. 11 looks like a standard non-protected building construction, but has characteristics which enable it to withstand blast events of up to about 50 psi.msec to about 600 psi.msec. and blast pressures in excess of 1500 psi.
  • FIG. 12 schematically illustrates a building construction 500 of the present invention with blast protected units 440 which are used as pre-detonating units.
  • the blast protected units 440 may be connected to any building construction, such as building construction 400 .
  • the blast protected units 440 of FIG. 12 are configured to at least partially mitigate impact of a ballistic attack on building construction 500 .
  • Blast protected units 440 are connected to building structure 410 via connecting shaft 412 at a predetermined distance from the building structure 410 .
  • building structure 410 comprises blast protected units 420 which are adapted to provide protection as in the embodiments of FIG. 11 .
  • Blast protected units 440 can be used for example to cause mortar shells, rockets or propelled shaped charge weapons like RPG to explode before blast protected units 420 of building construction 500 , and thereby at least partially mitigate damage of blast protected units 420 .
  • the blast which will take care at a predetermined distance from blast protected units 420 , will cause blast protected units 420 and their energy absorption unit to absorb the energy of the blast and move the panels into the internal part of building structure 410 .
  • the Blast protected units 440 are optional, and can be added at any time during or after the construction of any building construction of the present invention.
  • a series of Blast protected units 440 may be added in order to improve to protection of the building construction of the present invention.
  • FIG. 13 schematically illustrates a large building construction 600 .
  • this figure which illustrates a specific embodiment of the present invention, three building constructions 590 are interconnected to each other, so that the large building construction 600 is constructed.
  • building construction 600 provides an ability to cross from one building construction 590 to another building construction 590 .
  • building construction 600 may be used as a hospital.
  • the building construction of the present invention might be interconnected with an existing conventional building construction.
  • the building construction of the present invention might be assembled on the roof of an existing building construction, or next to it.
  • FIG. 13 also schematically illustrated blast protected units 580 which may be used to at least partially mitigate impact of a ballistic attack on the ceiling of building construction 600 .
  • the option of installing a pre-detonating panel of the above the ceiling of building construction 600 (of the roof of building construction 600 ) is adapted to cause indirect fire, like rockets or mortar shells to be detonated at a predetermined distance from the panels of the building construction, such that the results of said attack on the roof of said building construction are mitigated.
  • the present invention also discloses a method for constructing a blast protected building construction.
  • the method comprises steps of:
  • the blast protected units of the present invention may be connected to each other without the need to use a building structure.
  • the sub-frames of the blast protected units may be connected to each other, so as to provide a frameless structure.
  • FIG. 14 schematically illustrates one embodiment of a frameless structure 900 in which blast protected units 810 are connected to each other without the need to use a framework or any other type of building structure.
  • a frameless structure may be easily constructed by connecting the blast protected units 810 to each other. This connected may be performed by connecting sub-frames 812 of blast protected units 810 .
  • the building construction of the present invention may also comprise at least one blast protecting system connected to the same.
  • the blast protecting system is described below.
  • the present invention also discloses a blast protecting system for protection of an interior of a building structure.
  • the blast protecting system comprises the following components:
  • the energy absorption units of the blast protecting system are configured to be deformed under a force applied against the elongated elements and the at least one protecting layer, such that the energy created by a blast is at least partially absorbed by the energy absorption units via the elongated elements.
  • the present invention discloses a blast protecting system 700 which is adapted to provide protection from blasts and ballistic protection to an interior of any existing building structure such as building structure 605 .
  • the blast protecting system of the present invention may be used for retrofitting existing walls, or other elements of any building structure. It might also be installed in any opening of any building structure.
  • the present invention is characterized by portability and very easy for use (e.g., for installation).
  • the blast protecting system can be exploited for multi-uses by removing it from one place and installing in another one.
  • the fact that the system of the present invention is easy for installation and is prefabricated makes it easy for use by a non-skilled person. For example, soldiers who are not skilled in the field of protecting systems, may easily and quickly protect any existing building structure in any location.
  • the main novel characteristic of the present invention is not only its ability to withstand very massive blast events (e.g., 600 psi.msec.), but its adaptability to various dimensions of walls and other locations in which the system is installed. For example, the same system can be used to cover a wall of 2 meter height, and also for another wall of 3 meter height. This is achieved by the ability of the system to be adjusted to various dimensions.
  • the present invention provides the user of the invention with the ability to isolate and protect any selected existing building structure, and is achieved by the unique lightweight, reliable, strong and convenient design.
  • the blast protecting system may be used for protection of soldiers and commanders from blast events and ballistic attacks, when they are located in a closed structure in a hostile environment.
  • the method for use of the blast protecting system of the present invention can be done easily and in a fast manner, as will be described below.
  • the present invention may be, for example, used as a command post, communications post, storage facility, eating facility, operating theatre or clinic, sleeping quarters, dining quarters and in fact any structure that a military, police, paramilitary or civilian organization may require in a threatening environment.
  • FIG. 15 schematically illustrates a specific embodiment of the blast protecting system 700 of the present invention.
  • Blast protecting system 700 which is illustrated in this figure is adapted to provide protection to the interior of building structure 605 (e.g., a room, a building construction, a lodge, a house, a cabin, a caravan, a vehicle, etc.).
  • the system may protect the interior of structure 605 from spalls and pieces of wall 607 being projected after a blast event.
  • the system illustrated in FIG. 15 is constructed of a first energy absorption unit 610 , and a second energy absorption unit 611 which are mechanically connected to ceiling 608 and floor 609 of building structure 605 , respectively.
  • connection of first and second energy absorption units 610 and 611 to structure 605 may be performed via screw means, or any other conventional connecting means.
  • the first energy absorption unit 610 and the second energy absorption unit 611 are interconnected by a plurality of spaced elongated elements 620 . According to the specific embodiment illustrated in FIG. 15 , elongated elements 620 are substantially parallel to each other.
  • Each elongated elements 620 is having a first end 621 and a second end 622 .
  • Each first end 621 of elongated elements 620 is mechanically connected to first energy absorption unit 610
  • each second end 622 of elongated elements 620 is mechanically connected to second energy absorption unit 611 .
  • the first energy absorption unit 610 and the second energy absorption unit 611 are also interconnected by at least one protecting layer.
  • the protecting layer 630 is an anti-spall layer.
  • the anti-spall layer is adapted to prevent spalls from being projected into the interior of building structure 605 in case of a blast event.
  • protecting layer 630 may additionally comprise a ballistic layer adapted to provide ballistic protection to the content within structure 605 .
  • the ballistic layer may be used additionally to the anti-spall layer.
  • protecting layer 630 might be a protecting panel or may comprise a protecting panel.
  • This panel may be made of materials selected from a group consisting of: phenolic foam, Polyurea foam fabric, glass fibers, carbon fibers, aramid fibers, polyethylene fibers, Polystyrene, plastic foam, rockwool, composite materials, a lightweight material that can be used for construction of prefabricated structures, or any combination thereof.
  • protecting layer 630 may be made of materials characterized by a characteristic selected from a group consisting of: fluid isolating, moisture isolating, noise isolating, thermally isolating, fireproof, with ballistic protection properties, flexible, energy absorbing, lightweight, prefabricated, variable stiffness, resilient, translucent, or any combination thereof.
  • a translucent protecting layer the system of the present invention can provide a transfer of a day light into the structure. This might be important when the system is installed in front of a window. In this case, a day light may enter into the structure.
  • wall 607 may be additionally coated with trowel 632 adapted to strengthen this wall.
  • the first and the second energy absorption units 610 and 611 illustrated in FIG. 15 are constructed of an array of energy absorption sub-units 612 located between a first connecting profile 617 and a second connecting profile 618 .
  • the first connecting profile 617 interconnects energy absorption sub-units 612 with elongated elements 620 and protecting layer 630 .
  • the second connecting profile 618 interconnects energy absorption sub-units 612 with building structure 605 .
  • first and second energy absorption units 610 and 611 are configured to be deformed under the force applied against elongated elements 620 and protecting layer 630 , such that the energy created by a blast event is at least partially absorbed by energy absorption units 610 and 611 and at least partially by elongated elements 620 . More specifically, elongated elements 620 absorb most of the energy applied on them by the blast, and transmit said energy to energy absorption units 610 and 611 .
  • energy absorption units 610 and 611 are plastically deformable by being bent and/or elongated as a result of the blast event. According to other embodiments, energy absorption units might be configured to withstand multiple numbers of blasts.
  • variable dimensions of the system are the distance between first and second energy absorption units 610 and 611 . This distance typically might be between about 100 cm to about 10 meter.
  • system 700 is installed in front of and substantially adjacent to wall 605 , and is fitted to the entire height of said wall.
  • the system of the present invention might be dimensionally adjustable to be fitted to the dimensions of at least a part of a wall.
  • a plurality of blast protecting systems may be installed, one adjacent to the other, while their height is fitted to the height of said wall. For example, if the width of a wall is 9 meter, and the width of each module 2 meter, in this case four modules will be installed one adjacent to the other, and the width of the fifth module will be shortened to half and placed adjacent to the rest modules.
  • elongated elements 620 are steel cables.
  • the elongated members can be: rods, pipes, bars, mesh, shafts, sticks, cords, ropes, string, wires, threads, cables, etc.
  • elongated elements of FIG. 17 are adjustable by their telescopic characteristic. This means that the length of elongated elements 620 is expandable when they are pulled from their one side, and at the same time held from the other side. According to other embodiments, the length of elongated members 620 might be changes by their other characteristic such as: elongatability, stretchability, extendibility, extendibility, inelasticity, ability to be enlarged, varying length, etc. For example, the length of the elongated element might be adjusted by stretching the elongated elements, and cutting their unneeded residue.
  • protecting layer 630 are adjustable by characteristics selected from a group consisting of: elongatability, stretchability, elasticity, extendibility, enlargability, ability to spread out when provided in a rolled condition, cutting, slicing, or any combination thereof.
  • the length of protecting layer 630 is adjustable when protecting layer 630 is provided in a rolled condition at one of its end located in proximity to one of the energy absorption units. Following the adjustment of the length protecting layer 630 , the final length which was set by the user is fixed by fixing means (e.g., clip, clamp, fastener, stapler, slot, abutment, etc.).
  • system 700 may have at least one of the following characteristics: relocateable, transportable, portable, fixed to said construction, modular, ease of installation, kit-like, provided in a rolled kit, replaceable, upgradable, expandable, rapidly deployable, easy for installation by a layman, lightweight, blast protected, blast and ballistic protected, with decorative finish, or any combination thereof.
  • the force applied against the elongated elements and the at least one protecting layer is at least partially selected from a group consisting of: a force of a wind, a tornado generated force, a hurricane generated force, a force generated by an earthquake, a weather related force, any other pushing force, or any combination thereof.
  • the present invention discloses a method for rapidly deploying and protecting objects within a building structure in a theatre of operations via a blast protecting kit.
  • the kit is adapted to provide protection from blasts to the objects located within the structure in the theatre of operations.
  • the kit is adapted to be deployed in the theatre of operations for providing protection to the objects in a time of between about 10 minutes and about two hours.
  • the objects are selected from a group consisting of military forces, police forces, soldiers, first-aid crew, press crew, military equipment, electronic equipment, or any combination thereof.
  • the theatre of operations is selected from a group consisting of: a hostile environment, a battlefield, a city, a village, in a mountainous area, oil rigs, oil rigs, or any combination thereof.
  • the kit is provided to the theatre of operations from high altitude via transporting means selected from a group consisting of: an airplane, a jet plane, a helicopter, a crane, or any combination thereof.
  • FIG. 17 schematically illustrates a side view of the blast protection system 700 of the present invention.
  • Blast protection system 700 illustrated in this figure is adjacent to wall 607 of building structure 605 , such that in case of a blast event, spalls of said wall are prevented to penetrate into the interior of structure 605 .
  • first and second energy absorption units 610 and 611 interconnected via elongated elements 620 , and with protecting layer 630 located therebetween.
  • second energy absorption unit 611 is connected elongated elements 620 via first connecting profile 617 , and to the floor 609 of building structure 605 via second connecting profile 618 .
  • first energy absorption unit 610 is also constructed from first and second connecting profiles (not shown) adapted to connect first energy absorption unit 610 to ceiling 608 and elongated elements 620 .
  • FIG. 16 schematically illustrates a top view of the blast protection system 700 of the present invention.
  • System 700 illustrated in this figure is adjacent to wall 607 of building structure 605 , such that in case of a blast event, spalls of said wall are prevented to penetrate into the interior of building structure 605 .
  • FIG. 16 illustrates a top view of elongated elements 620 with protecting layer 630 .
  • FIG. 18 exemplary illustrates a specific embodiment of system 800 of the present invention which was installed within structure 705 .
  • the system 800 illustrated in this figure was exposed to an experimental blast event.
  • the experimental blast event which was performed by the inventors was performed with a blast impulse of about 1000 psi.msec.
  • the blast protecting system 800 of the present invention is stable to this kind of blast.
  • the building construction of the present invention is stable to blasts with wide range of blast impulse of between about 50 psi and about 1800 psi.msec. It is important to emphasize that in the prior art there are no systems which are able to withstand blasts of this scope and strength.
  • first and second energy absorption units 710 and 711 interconnected via elongated elements 720 , and with protecting layer 730 located therebetween.
  • the first and the second energy absorption units 710 and 711 illustrated in FIG. 18 are constructed of an array of energy absorption sub-units 712 located between a first connecting 15 profile 717 and a second connecting profile 718 .
  • the first connecting profile 717 interconnects energy absorption sub-units 712 with elongated elements 720 and protecting layer 730 .
  • the second connecting profile 718 interconnects energy absorption sub-units 712 with structure 705 .
  • the length of elongated elements 720 and the length of protecting layer 730 presented in FIG. 20 18 is adjusted to high D structure 705 .
  • the length of elongated elements 720 is adjusted by their telescopic enlargement, and the length of protecting layer 730 is adjusted by cutting said protecting layer to the needed dimensions.
  • the protecting layer 730 of FIG. 18 is an anti spall layer combined with a ballistic layer.
  • FIG. 19 schematically illustrates structure 705 from its exterior side.
  • the blast protecting system of the present invention is installed behind wall 707 , and the source of the blast is located in front of wall 707 (not shown).
  • FIG. 20 illustrates the blast protecting system 800 of FIG. 18 , after a blast event creating a reflected impulse of 600 psi.msec. It can be seen in this figure that system successfully prevented damage within structure 705 .
  • the energy of the blast has been absorbed in elongated elements 720 which transferred part of the energy to energy absorbing sub-units 712 of energy absorbing units 710 and 711 .
  • FIG. 18 as a result of the blast, elongated elements 720 are bent, and energy absorbing sub-units 712 are plastically deformed (bent and stretched).
  • FIG. 21 illustrates structure 707 from its exterior side (from FIG. 21 ), after a blast event.
  • this figure presented spalls and pieces of broken wall 705 , and system 800 (from FIG. 21 ) from its exterior side.
  • the spalls and pieces of broken wall 705 were prevented from penetrating into the interior of structure 705 .
  • any building structure may be protected with at least one blast protecting unit and/or blast protecting system according to the different embodiment described above.
  • a plurality of blast protecting units may be used as the walls of the building structure, and the blast protecting systems may be installed in the interior of the building structure.
  • the blast protecting unit connected to a building structure (of FIGS. 1-13 ) has been tested in a few experiments.
  • the results of the experiments are the following:
  • the building construction of the present invention has undergone full scale explosive and ballistic testing for the following baseline performance:

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  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
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CN102947523A (zh) 2013-02-27
MX2012009488A (es) 2013-04-11
CA2789520A1 (fr) 2011-08-18
EA201290758A1 (ru) 2013-05-30
EP2536900A2 (fr) 2012-12-26
ZA201206446B (en) 2013-06-26
AU2011214181A1 (en) 2012-09-20
KR20130006439A (ko) 2013-01-16
JP2013519809A (ja) 2013-05-30
WO2011098764A3 (fr) 2012-07-05
RU2012137950A (ru) 2014-03-27
BR112012020435A2 (pt) 2017-03-01
CO6630118A2 (es) 2013-03-01

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