EP3784843B1 - Building construction with a sandwich panel wall and method of fire proofing such a building construction - Google Patents
Building construction with a sandwich panel wall and method of fire proofing such a building construction Download PDFInfo
- Publication number
- EP3784843B1 EP3784843B1 EP19726197.7A EP19726197A EP3784843B1 EP 3784843 B1 EP3784843 B1 EP 3784843B1 EP 19726197 A EP19726197 A EP 19726197A EP 3784843 B1 EP3784843 B1 EP 3784843B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- panel
- isolation layer
- wall
- heat isolation
- fasteners
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009435 building construction Methods 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 10
- 238000004079 fireproofing Methods 0.000 title claims description 5
- 239000002184 metal Substances 0.000 claims description 78
- 238000002955 isolation Methods 0.000 claims description 63
- 239000002657 fibrous material Substances 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 210000002105 tongue Anatomy 0.000 description 7
- 210000002268 wool Anatomy 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/948—Fire-proof sealings or joints
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B2001/2481—Details of wall panels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
Definitions
- the invention relates to a building construction with a wall that comprises a sandwich panel comprising metal plates connected by fiber material. Furthermore, the invention relates to a method of fireproofing building constructions with sandwich walls.
- sandwich panels comprising pair of steel plates and stone wool between the plates in a wall of a building.
- the stone wool is glued to the metal plates.
- Such panel makes it possible to realize a high stiffness against bending. Even a sandwich with relatively thin steel panels of less than one millimeter thickness can thus be made stiffer than a wall made of a much thicker single solid steel panel.
- the metal plates alone provide for a capability of bearing the weight of objects on the wall, and the sandwich increases this ability.
- a sandwich panel with steel plates may be capable of bearing objects of thirty kilograms or more.
- a wall in a building can be construed by mounting one or more of such sandwich panels hanging from a beam, bolted to the beam with bolts through the panel.
- sandwich panel walls can also be used to satisfy fire safety requirements for buildings.
- Fire safety of a building may require that a wall shields off fire at least for a certain minimum time interval when exposed to temperatures of nine hundred up to eleven hundred degrees Celsius due to the fire.
- the wall is formed by a sandwich panel comprising stone wool glued between a pair of steel plates, the glue will soon lose its function at such a temperature, so that the stiffness against bending is lost. But the steel plates will still remain intact at such temperatures, ensuring fire shielding.
- the steel plates of the sandwich panel wall may need to have a minimum thickness to satisfy fire safety requirements. Otherwise, the weight will drag down the panel in the case of a fire, destroying its shielding function.
- EP 0387934 describes a coupling between edges of sandwich panels that each comprise a layer of insulation material covered on both sides with a metal plate.
- the coupling is designed to stimulate interior ventilation and vapor transport in the space bounded by the plates.
- Screws are used to couple edges of the panels to each other and to hang the panels on a building construction. At the edges of connected panels the metal plates are bent inward. The screws that are used to couple the edges of the panels fix a bracket that connects the bent portions. The heads of the screws are located in a depression formed by the bent portions. A protective cover with a U shaped cross-section is pushed into the depression to cover the heads of the screws. The cover extends along the length of the connection between the panels and primarily serves to hide the depression from view.
- the screws that serve as coupling elements to the building construction protrude outside the metal plates are along located above the brackets. These screws are of a relative great length, such that they protrude with the end away from the head outside the panel. As this sandwich panel hangs only from screws at the edges, it can carry only limited weight, and the weight carrying capacity can decrease due to heating of the screws, e.g. by hot air that rises through the depression.. When a fire arises next to the wall the construction of provides only limited protection against failure of the wall.
- EP0595777 discloses an anti-fire panel with parallel metal plates opposite to each other.
- a self-extinguishing poly-urethane foam layer is provided in a space between the parallel metal plates, with mineral insulating material layers between the foam layer and the two parallel metal plates respectively.
- the mineral insulating material layers improve thermal resistance, by preventing the self-extinguishing foam material from being heated for a long time, thereby increasing the fire or flame resistance of the panel construction.
- EP0595777 further discloses a joint element between the edges of adjacent panels. Like the panels, the joint element contains a foam layer between mineral insulating material layers. Central bodies are provided on the mineral insulating material layers, with legs extending over the parallel metal plates of the joined panels. Tie rods clamp the central bodies and the legs to the joined panels. Snap covering elements with mineral insulating material layers snap into a loop formed by the central body to form a thermal barrier at the snap covering.
- WO 2015/188229 A1 discloses a building comprising a structural frame of the building, at least one window or door supported by and substantially aligned to the frame, and an external wall formed by at least one insulated sandwich panel, the panel(2) in the external wall being supported by the frame and being offset externally from the frame, wherein the frame is exposed in at least part of the interior of the finished building and wherein at least part of the internal wiring of the building traverses the interior of the building on and/or in the frame.
- US 2 693 256 discloses a panel unit comprising two confronting identical half sections, each half section comprising a facing sheet having one side edge thereof turned inwardly to form a tongue and the other side edge turned inwardly and reversely bent to form a groove, the half sections being disposed with the tongue of one half section adjacent the groove of the other half section and at the same side edge of the unit.
- the panel unit further comprises identical metal tie pieces of angular shape mounted on the inner face of each of said half sections, each tie piece having one leg disposed parallel to its associated sheet and being welded thereto and having a second leg disposed at right angles to its associated sheet, the second leg of each tie piece being provided at one with a cut-out portion adjacent the grooved side edge of its associated sheet and extending therebeyond and the other end of the second leg of each tie piece terminating short of the tongue end of its associated sheet, the second leg of each tie piece being provided at its opposite ends with a web portion extending parallel to its associated sheet, the web portions of the tie pieces abutting each other.
- the panel unit also comprises means extending through the abutting web portions and securing the half sections together.
- a building construction according to claim 1 is provided.
- a heat isolation layer is provided on at least one side of the sandwich panel, over fasteners from which the sandwich panel hangs from the beam, and over an area of the panel surrounding the fasteners on that side of the panel.
- the fasteners may be bolts, screws, rivets etc.
- the heat isolation layer need only be present on the sandwich wall panel at the level of the fasteners and a part of an area of the sandwich panel surrounding that level, e.g. only down to twenty to two hundred mm below the level of the fasteners, and preferably at least fifty mm.
- the heat isolation layer is provided over the whole width of the sandwich panel, but alternatively it may be provided in isolated patches over individual fasteners or groups of fasteners.
- the plurality of fasteners from which a sandwich panel hangs are preferably arranged in a row, wherein the fasteners are located at substantially equal distances from the top of the sandwich panel.
- a row of more than two fasteners may be used per sandwich panel, preferably with substantially equal distances between the fasteners of the same sandwich panel.
- the fasteners extend through the sandwich panel.
- each of these fasteners serves to hang one sandwich panel only, together with one or more other fasteners that serve to hang that sandwich panel.
- the heat isolation layer may be made of ceramic wool for example.
- heat isolation layers may be provided over the fastener and the areas of the panel surrounding the fastener on both sides of the sandwich panel. This prolongs shielding of fires from both sides of the wall. But if there is a need to shield fires only from one side of the sandwich panel, a heat isolation layer on that side may suffice.
- the building construction with the sandwich panel wall may be designed so that the sandwich panel wall is able to bear a predetermined amount of weight at room temperature that the sandwich panel wall is not able to bear at nine hundred degrees Celsius.
- the heat isolation layer prolongs the time interval before the sandwich panel wall loses its fire shielding effect.
- a further panel with a thicker metal plate is included adjacent the sandwich panel. This makes it possible to hang more weight locally on the wall, without compromising safety or increasing the weight of all panels.
- the surface of the wall comprises surfaces of a plurality of panels and spreading plate attached to the plurality of panels. This makes it possible to hang more weight on the spreading plate than on an individual panel.
- a method of fire proofing a building construction with a sandwich wall according to claim 5 is provided.
- fire-proofing refers to increasing the time duration before the sandwich wall fails to perform its separation function.
- the method applies to a building construction comprises a beam, the sandwich panel hanging from said beam on fasteners that extend through the sandwich panel and into said beam.
- a heat isolation layer is applied on at least one side of the sandwich panel, over the fasteners and over an area of the panel surrounding the fasteners on that side of the panel. This can done on existing walls to improve protection, or when the wall is built up. In both cases the heat isolation layer provides longer protection against failure of the wall also when objects of considerable weight have been hung on the sandwich wall panel.
- Figure 1 shows a building construction comprising a succession of sandwich panels 10 suspended from a beam 12. Each sandwich panel 10 is attached to beam 12 by a plurality of bolts 14. In the illustrated embodiment, beam 12 is located at the top of sandwich panels 10. Beam 12 is connected to a framework of the building (not shown). The building construction may comprise further beams, e.g. a bottom beam 16 connected to sandwich panels 10 and one or more further beams to back up sandwich panels 10. Sandwich panels 10 may be connected to each other by interlocking seams to form a continuous wall. Preferably, seams are used that are designed to block penetration of fire or substantial hot air flow through the seams into the space in the wall that contains fiber material.
- the interlocking seams connect sandwich panels 10 without use of fasteners that extend through the sandwich panels. This prevents heat transport at the edges between the panels.
- sandwich panels 10 may be connected to each other with tongue and groove connections with tongues and grooves that extend in parallel with the plane of the sandwich panels at the connected edges.
- the edge of the metal plate of the sandwich panel that forms the main surface plane on one side of the panel can be used to realize a groove.
- the metal plate is bent into an S shape at the edge adjoining the adjacent plate, the top of the S being part of the surface of the metal plate and the remainder of the S lying between the planes of the metal plates of the sandwich panel.
- the plate may end with a part perpendicular to the surface, along the edge of the fiber material of the sandwich panel.
- a tongue can be realized similarly with a bent plate edge to fit with the S shape,
- Each of the metal plates 20a, b may have bends on both front and back to form a tongue or groove on both the front and back along an edge.
- FIG. 2 shows a side view of part of sandwich wall panel 10 not according to the invention but present for illustrations purposes only.
- Sandwich wall panel 10 comprises parallel metal plates 20a, b and fiber material 21 between parallel metal plates 20a, b.
- Sandwich panels 10 are known per se.
- each sandwich panel comprises a pair of parallel steel plates, for example of 0.7 mm thickness each at a distance of 100 mm, with stone wool between the steel plates glued to both plates.
- each sandwich panel 10 is at least three meters high and half a meter wide.
- the surfaces of parallel metal plates 20a, b, form the parallel surfaces of the wall.
- the part of metal plate 20a, b that forms one of the parallel surfaces of the wall will be referred to as the main surface of the metal plate 20a, b.
- the fiber material is attached to the parts of the metal plates that form the main surface parts. As noted, another part at the edge may be used to connect the panels. The fiber material need not be attached to this other part.
- the use of parallel metal plates with fiber material attached to the metal plates and filling the distance between the plates provides for a stiff, light weight wall, with stiffness to bending that is much larger than the stiffness of the metal plates per se, and equal to the stiffness of a much thicker solid metal wall plate.
- a 0.7 mm thickness and a distance of 100 mm may be used, but the thicknesses e.g. in a range of 0.1 mm to 5 mm and distances e.g. in the range of 20-200 mm may be used.
- stone wool other fiber material may be used, such as another ceramic or mineral wool, glass or carbon fiber etc.
- (stainless) steel plates other metal plates may be used, provided that the metal has a melting temperature above a thousand degrees Celsius.
- Figure 2 schematically shows suspension of a sandwich wall panel 10 from beam 12.
- a beam 12 with L-shape cross-section is shown, but other types of beam may be used.
- Bolts 14 (only one shown) extends through sandwich wall panel 10 and are screwed into beam 12.
- Bolts 14 may be end within beam 12, or bolts 14 may extend through beam 12.
- equivalent fasteners such as rivets, screws etc. may be used.
- the fasteners extend through sandwich wall panel 10 between the main surfaces of the metal plates.
- the head of fastener 14 lies on the metal plate 20a outside the main surface outside of metal plate 20a.
- the head of the fastener may be integral with the fastener or attached to it, e.g. screwed on as a nut, glued on etc.
- a self tapping bolt and the hole though which the bolt enters the metal plate is tapped with this bolt. It has been found that this increases the maximum wall panel weight bearing capacity. Preferably both holes where the bolt enters and exits are tapped with the bolt.
- a fire resistant heat isolation layer 22 is provided over bolts 14.
- the purpose of heat isolation layer 22 is to delay heating of the metal plate of sandwich wall panel 10 at and surrounding the part of bolt 14, in the case of fire on the side of the wall on which heat isolation layer 22 is provided.
- heat isolation layer 22 is applied over and surrounding the bolts 14 on only one of the metal plates 20a of the sandwich wall panel, thus providing fire protection only for fire on a first side of the wall.
- Such one sided protection is all that is required for fire safety in many applications.
- the head of bolts 14 extends beyond the main surface of the metal plate 20a over which heat isolation layer 22 is applied. If delay of collapse of the wall protection due to fire on either side of the wall is required, a further heat isolation layer 23 may be provided over beam 12 on the right side of the drawing as well, as shown in figure 2a , which is also not according to the invention.
- heat isolation layer 22 delays this form of failure, thus providing for a longer time of escape.
- heat isolation layer 22 is selected so that failure from the holes due to direct heating of the wall surrounding bolts 14 is no longer the earliest cause of failure. A much larger delay does not add to safety.
- there are other causes of failure that may eventually result in collapse of the wall such as ascent of heated air through a space between parallel metal plates 20a,b, or heat diffusion through metal plate 20a from the part of metal plate 20a that is exposed to the fire.
- bolts 14 are connected to beam 12 only on the second side, opposite the first side, at the metal plate 20b on the second side.
- heating through bolts 14 from the fire on the first side is avoided.
- the part of beam 12 that faces the same space as heat isolation layer 22 is also embedded in further heat isolation material 220, as shown in figure 2b . This slows down heat diffusion through beam 12 to the other side of the wall and its possible effect on wall failure.
- such an embedding is may not be needed.
- the part of the inner surface of heat isolation layer 22 above and below fastener is parallel to the main surface of metal plate 20a., preferably from the highest to the lowest edges of height of heat isolation layer 22,
- the parallel part of the inner surface extends in contact with the surface of metal plate 20a of sandwich panel 10 both above and below the place where the head of fastener 14 extends from the surface of metal plate 20a. This prevents that fastener 14, or the part of the main surface of metal plate 20a can be heated by flow of heated air between the surface of metal plate 20a and heat isolation layer 22.
- heat isolation layer 22 is also in contact with the surface of metal plate 20a left and right of the head of fastener 14.
- the thickness and extent of heat isolation layer 22 is selected so that the cumulative heat flow to the wall part surrounding bolts 14 through heat isolation layer 22 during one hour, when the air temperature adjacent the heat isolation layer is 1100 degrees Celsius, is less than the heat flow needed to heat the wall part surrounding bolts to a level where the wall fails at bolts 14 when the wall is loaded with a weight up to thirty kilograms.
- the heat flow through the wall part through heat isolation layer 22 to the part surrounding bolts 14 is smaller than heat flow due to other processes of heating that wall part.
- heat isolation layer 22 may comprise a layer of a ceramic or mineral wool, such as stone wool for example.
- a heat isolation layer 22 that extends over all these bolts 14.
- separate heat isolation layers 22 may be applied over individual bolts 14, or sub-sets of the bolts.
- a single heat isolation layer 22 may be used that extends over a plurality of wall panels.
- heat isolation layer or layers 22 extends at least twenty mm from the edge of each bolt 14 over the surrounding surface of metal plate 22a, and preferably at least fifty mm from the edge.
- heat isolation layer is at least twenty mm thick.
- heat isolation layer 22 is designed so that its heat conduction coefficient is less than 0,04 W/(m 2 Kelvin).
- all bolts 14 from which a sandwich panel 10 is suspended are covered by a heat isolation layer as described. But of course, in addition to the covered bolts that suffice to keep up sandwich wall panel, there may be additional bolts that are not covered. It suffices that the covered bolts per se are able to carry the sandwich panel at least during a limited time interval that allows for escape from the fire.
- FIG 2b shows an embodiment according to the invention wherein heat isolation layer 22 is part of pre-form part, which further comprise a cover 24, e.g. of metal such as steel, which may be directly or indirectly coupled to beam 12, or to further heat isolation material 220 into which beam 12 is embedded, as shown in figure 2c also showing an embodiment according to the invention.
- cover 24 encloses heat isolation layer 22 on the outside, as shown in figure 2d , this prevents that heat isolation layer 22 can be disturbed.
- screws are used to connect cover 24 to the metal plate 20a at a level below heat isolation layer 22, as shown in figure 2d showing a further embodiment according to the invention.
- heat isolation layer 22 is located between the metal cover 24 and the metal plate 22a of sandwich wall panel 10with which heat isolation layer 22 is in contact.
- heat isolation layer 22 may be attached to metal plate 20a first and optionally subsequently covered by a metal cover 24.
- heat isolation layer 22 itself may be attached by screws through heat isolation layer 22 into the metal plate 20a on which heat isolation layer 22 is provided, at a distance from bolts 14 (e.g. at least twenty mm distant). As such screws bear only heat isolation layer 22, they do not form a significant source of wall failure.
- a sandwich panel 10 may be suspended from a plurality of beams at different heights, attached to each of these beams by a plurality of bolts.
- bolts connected to each of these beams are covered by a heat isolation layer in a way described in the preceding.
- FIG. 3 shows an embodiment wherein an intermediate plate 30 is attached to a plurality of sandwich panel of a wall. When weight is attached to intermediate plate 30, intermediate plate 30 will distribute the weight over the plurality of sandwich panels. Thus a weight carrying capacity can be realized that is a sum of the weight carrying capacity of individual sandwich wall panels.
- Figure 4 shows an embodiment of a wall comprising first sandwich wall panels 10 as described in the preceding, with metal plates of a first thickness.
- a further panel 40 (preferably also a sandwich panel) with a metal plate or plates of the same metal (e.g. steel) as sandwich wall panels 10, is included between the first panels.
- the metal plate or plates of further panel 40 have a second thickness greater than the first thickness (e.g. at least twice the first thickness). This makes it possible to increase the weight bearing capacity of the wall locally at the further panel, without increasing the weight of all panels in the wall.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Description
- The invention relates to a building construction with a wall that comprises a sandwich panel comprising metal plates connected by fiber material. Furthermore, the invention relates to a method of fireproofing building constructions with sandwich walls.
- It is known to use sandwich panels comprising pair of steel plates and stone wool between the plates in a wall of a building. The stone wool is glued to the metal plates. Such panel makes it possible to realize a high stiffness against bending. Even a sandwich with relatively thin steel panels of less than one millimeter thickness can thus be made stiffer than a wall made of a much thicker single solid steel panel. The metal plates alone provide for a capability of bearing the weight of objects on the wall, and the sandwich increases this ability. For example, a sandwich panel with steel plates may be capable of bearing objects of thirty kilograms or more. A wall in a building can be construed by mounting one or more of such sandwich panels hanging from a beam, bolted to the beam with bolts through the panel. Subject to certain conditions such sandwich panel walls can also be used to satisfy fire safety requirements for buildings. Fire safety of a building may require that a wall shields off fire at least for a certain minimum time interval when exposed to temperatures of nine hundred up to eleven hundred degrees Celsius due to the fire. When the wall is formed by a sandwich panel comprising stone wool glued between a pair of steel plates, the glue will soon lose its function at such a temperature, so that the stiffness against bending is lost. But the steel plates will still remain intact at such temperatures, ensuring fire shielding. However, dependent on the weight of objects that the sandwich panel is allowed to carry, the steel plates of the sandwich panel wall may need to have a minimum thickness to satisfy fire safety requirements. Otherwise, the weight will drag down the panel in the case of a fire, destroying its shielding function.
-
EP 0387934 describes a coupling between edges of sandwich panels that each comprise a layer of insulation material covered on both sides with a metal plate. The coupling is designed to stimulate interior ventilation and vapor transport in the space bounded by the plates. - Screws are used to couple edges of the panels to each other and to hang the panels on a building construction. At the edges of connected panels the metal plates are bent inward. The screws that are used to couple the edges of the panels fix a bracket that connects the bent portions. The heads of the screws are located in a depression formed by the bent portions. A protective cover with a U shaped cross-section is pushed into the depression to cover the heads of the screws. The cover extends along the length of the connection between the panels and primarily serves to hide the depression from view.
- The screws that serve as coupling elements to the building construction protrude outside the metal plates are along located above the brackets. These screws are of a relative great length, such that they protrude with the end away from the head outside the panel. As this sandwich panel hangs only from screws at the edges, it can carry only limited weight, and the weight carrying capacity can decrease due to heating of the screws, e.g. by hot air that rises through the depression.. When a fire arises next to the wall the construction of provides only limited protection against failure of the wall.
-
EP0595777 discloses an anti-fire panel with parallel metal plates opposite to each other. A self-extinguishing poly-urethane foam layer is provided in a space between the parallel metal plates, with mineral insulating material layers between the foam layer and the two parallel metal plates respectively. The mineral insulating material layers improve thermal resistance, by preventing the self-extinguishing foam material from being heated for a long time, thereby increasing the fire or flame resistance of the panel construction. -
EP0595777 further discloses a joint element between the edges of adjacent panels. Like the panels, the joint element contains a foam layer between mineral insulating material layers. Central bodies are provided on the mineral insulating material layers, with legs extending over the parallel metal plates of the joined panels. Tie rods clamp the central bodies and the legs to the joined panels. Snap covering elements with mineral insulating material layers snap into a loop formed by the central body to form a thermal barrier at the snap covering. -
WO 2015/188229 A1 discloses a building comprising a structural frame of the building, at least one window or door supported by and substantially aligned to the frame, and an external wall formed by at least one insulated sandwich panel, the panel(2) in the external wall being supported by the frame and being offset externally from the frame, wherein the frame is exposed in at least part of the interior of the finished building and wherein at least part of the internal wiring of the building traverses the interior of the building on and/or in the frame. -
US 2 693 256 discloses a panel unit comprising two confronting identical half sections, each half section comprising a facing sheet having one side edge thereof turned inwardly to form a tongue and the other side edge turned inwardly and reversely bent to form a groove, the half sections being disposed with the tongue of one half section adjacent the groove of the other half section and at the same side edge of the unit. The panel unit further comprises identical metal tie pieces of angular shape mounted on the inner face of each of said half sections, each tie piece having one leg disposed parallel to its associated sheet and being welded thereto and having a second leg disposed at right angles to its associated sheet, the second leg of each tie piece being provided at one with a cut-out portion adjacent the grooved side edge of its associated sheet and extending therebeyond and the other end of the second leg of each tie piece terminating short of the tongue end of its associated sheet, the second leg of each tie piece being provided at its opposite ends with a web portion extending parallel to its associated sheet, the web portions of the tie pieces abutting each other. The panel unit also comprises means extending through the abutting web portions and securing the half sections together. - It is an object of the invention to provide for a building construction with a wall that comprises a sandwich panel that is able to shield off fire for a longer time with metal plates of less thickness when loaded with weight. According to the invention a building construction according to claim 1 is provided. Here, a heat isolation layer is provided on at least one side of the sandwich panel, over fasteners from which the sandwich panel hangs from the beam, and over an area of the panel surrounding the fasteners on that side of the panel. The fasteners may be bolts, screws, rivets etc. The earliest failure of the steel plates of the sandwich panel at nine hundred degrees Celsius is at the fasteners, because of the development of cracks in the steel plate upward from the position of the fasteners at high temperature. By using the heat isolation layer over the fasteners and their surrounding, heating of the metal plate of the sandwich panel at the location of the fasteners is delayed, thereby the development of the cracks. In this way, the time interval before the wall will fail can be increased without increasing the thickness of the steel panel, even when the sandwich panel wall bears considerable weight. The heat isolation layer need only be present on the sandwich wall panel at the level of the fasteners and a part of an area of the sandwich panel surrounding that level, e.g. only down to twenty to two hundred mm below the level of the fasteners, and preferably at least fifty mm. Preferably, the heat isolation layer is provided over the whole width of the sandwich panel, but alternatively it may be provided in isolated patches over individual fasteners or groups of fasteners.
- The plurality of fasteners from which a sandwich panel hangs are preferably arranged in a row, wherein the fasteners are located at substantially equal distances from the top of the sandwich panel. A row of more than two fasteners may be used per sandwich panel, preferably with substantially equal distances between the fasteners of the same sandwich panel.
- The fasteners extend through the sandwich panel. Preferably each of these fasteners serves to hang one sandwich panel only, together with one or more other fasteners that serve to hang that sandwich panel.
- The heat isolation layer may be made of ceramic wool for example. In an embodiment, heat isolation layers may be provided over the fastener and the areas of the panel surrounding the fastener on both sides of the sandwich panel. This prolongs shielding of fires from both sides of the wall. But if there is a need to shield fires only from one side of the sandwich panel, a heat isolation layer on that side may suffice.
- The building construction with the sandwich panel wall may be designed so that the sandwich panel wall is able to bear a predetermined amount of weight at room temperature that the sandwich panel wall is not able to bear at nine hundred degrees Celsius. In this case the heat isolation layer prolongs the time interval before the sandwich panel wall loses its fire shielding effect.
- In an embodiment a further panel with a thicker metal plate is included adjacent the sandwich panel. This makes it possible to hang more weight locally on the wall, without compromising safety or increasing the weight of all panels.
- In an embodiment the surface of the wall comprises surfaces of a plurality of panels and spreading plate attached to the plurality of panels. This makes it possible to hang more weight on the spreading plate than on an individual panel.
- According to another aspect a method of fire proofing a building construction with a sandwich wall according to claim 5 is provided. Herein fire-proofing refers to increasing the time duration before the sandwich wall fails to perform its separation function. The method applies to a building construction comprises a beam, the sandwich panel hanging from said beam on fasteners that extend through the sandwich panel and into said beam. According to the method comprising a heat isolation layer is applied on at least one side of the sandwich panel, over the fasteners and over an area of the panel surrounding the fasteners on that side of the panel. This can done on existing walls to improve protection, or when the wall is built up. In both cases the heat isolation layer provides longer protection against failure of the wall also when objects of considerable weight have been hung on the sandwich wall panel.
- These and other objects and advantages will become apparent from a description of exemplary embodiments with reference to the following figures.
- Figure 1
- shows a sandwich panel wall
- Figure 2, 2a-d
- show a connection detail of a sandwich wall panel
- Figure 3
- shows an embodiment with an intermediate plate
- Figure 4
- shows an embodiment with a panel comprising a thicker plate
-
Figure 1 shows a building construction comprising a succession ofsandwich panels 10 suspended from abeam 12. Eachsandwich panel 10 is attached tobeam 12 by a plurality ofbolts 14. In the illustrated embodiment,beam 12 is located at the top ofsandwich panels 10.Beam 12 is connected to a framework of the building (not shown). The building construction may comprise further beams, e.g. abottom beam 16 connected tosandwich panels 10 and one or more further beams to back upsandwich panels 10.Sandwich panels 10 may be connected to each other by interlocking seams to form a continuous wall. Preferably, seams are used that are designed to block penetration of fire or substantial hot air flow through the seams into the space in the wall that contains fiber material. - Preferably, the interlocking seams connect
sandwich panels 10 without use of fasteners that extend through the sandwich panels. This prevents heat transport at the edges between the panels. For example,sandwich panels 10 may be connected to each other with tongue and groove connections with tongues and grooves that extend in parallel with the plane of the sandwich panels at the connected edges. - The edge of the metal plate of the sandwich panel that forms the main surface plane on one side of the panel can be used to realize a groove. At the groove the metal plate is bent into an S shape at the edge adjoining the adjacent plate, the top of the S being part of the surface of the metal plate and the remainder of the S lying between the planes of the metal plates of the sandwich panel. About half way the bottom of the S, the plate may end with a part perpendicular to the surface, along the edge of the fiber material of the sandwich panel. A tongue can be realized similarly with a bent plate edge to fit with the S shape, Each of the
metal plates 20a, b may have bends on both front and back to form a tongue or groove on both the front and back along an edge. -
Figure 2 shows a side view of part ofsandwich wall panel 10 not according to the invention but present for illustrations purposes only.Sandwich wall panel 10 comprisesparallel metal plates 20a, b andfiber material 21 betweenparallel metal plates 20a, b.Sandwich panels 10 are known per se. In an embodiment each sandwich panel comprises a pair of parallel steel plates, for example of 0.7 mm thickness each at a distance of 100 mm, with stone wool between the steel plates glued to both plates. In an example, eachsandwich panel 10 is at least three meters high and half a meter wide. The surfaces ofparallel metal plates 20a, b, form the parallel surfaces of the wall. - The part of
metal plate 20a, b that forms one of the parallel surfaces of the wall will be referred to as the main surface of themetal plate 20a, b. The fiber material is attached to the parts of the metal plates that form the main surface parts. As noted, another part at the edge may be used to connect the panels. The fiber material need not be attached to this other part. - The use of parallel metal plates with fiber material attached to the metal plates and filling the distance between the plates provides for a stiff, light weight wall, with stiffness to bending that is much larger than the stiffness of the metal plates per se, and equal to the stiffness of a much thicker solid metal wall plate. By way of example a 0.7 mm thickness and a distance of 100 mm may be used, but the thicknesses e.g. in a range of 0.1 mm to 5 mm and distances e.g. in the range of 20-200 mm may be used. Instead of stone wool other fiber material may be used, such as another ceramic or mineral wool, glass or carbon fiber etc. Instead of (stainless) steel plates other metal plates may be used, provided that the metal has a melting temperature above a thousand degrees Celsius.
-
Figure 2 schematically shows suspension of asandwich wall panel 10 frombeam 12. By way of example abeam 12 with L-shape cross-section is shown, but other types of beam may be used. Bolts 14 (only one shown) extends throughsandwich wall panel 10 and are screwed intobeam 12.Bolts 14 may be end withinbeam 12, orbolts 14 may extend throughbeam 12. Although an embodiment with bolts is described, it should be understood that equivalent fasteners such as rivets, screws etc. may be used. The fasteners extend throughsandwich wall panel 10 between the main surfaces of the metal plates. The head offastener 14 lies on themetal plate 20a outside the main surface outside ofmetal plate 20a. - The head of the fastener may be integral with the fastener or attached to it, e.g. screwed on as a nut, glued on etc. In an embodiment a self tapping bolt, and the hole though which the bolt enters the metal plate is tapped with this bolt. It has been found that this increases the maximum wall panel weight bearing capacity. Preferably both holes where the bolt enters and exits are tapped with the bolt.
- A fire resistant
heat isolation layer 22 is provided overbolts 14. The purpose ofheat isolation layer 22 is to delay heating of the metal plate ofsandwich wall panel 10 at and surrounding the part ofbolt 14, in the case of fire on the side of the wall on whichheat isolation layer 22 is provided. - In the illustrated embodiment
heat isolation layer 22 is applied over and surrounding thebolts 14 on only one of themetal plates 20a of the sandwich wall panel, thus providing fire protection only for fire on a first side of the wall. Such one sided protection is all that is required for fire safety in many applications. The head ofbolts 14 extends beyond the main surface of themetal plate 20a over whichheat isolation layer 22 is applied. If delay of collapse of the wall protection due to fire on either side of the wall is required, a furtherheat isolation layer 23 may be provided overbeam 12 on the right side of the drawing as well, as shown infigure 2a , which is also not according to the invention. - It has been found that, when sandwich wall panel is loaded with a significant weight (e.g. thirty kilograms), an early cause of collapse of the panel in the case of fire is due to high temperature failure of the
metal plate 20a of the sandwich panel from the holes through whichsandwich wall panel 10 is suspended onbolts 14. Because the holes and their surrounding are covered byheat isolation layer 22 themetal plate 20a around the hole will heat more slowly. Thus,heat isolation layer 22 delays this form of failure, thus providing for a longer time of escape. Preferablyheat isolation layer 22 is selected so that failure from the holes due to direct heating of thewall surrounding bolts 14 is no longer the earliest cause of failure. A much larger delay does not add to safety. Of course there are other causes of failure that may eventually result in collapse of the wall, such as ascent of heated air through a space betweenparallel metal plates 20a,b, or heat diffusion throughmetal plate 20a from the part ofmetal plate 20a that is exposed to the fire. - Preferably,
bolts 14 are connected tobeam 12 only on the second side, opposite the first side, at themetal plate 20b on the second side. Thus, heating throughbolts 14 from the fire on the first side is avoided. In an embodiment, the part ofbeam 12 that faces the same space asheat isolation layer 22 is also embedded in furtherheat isolation material 220, as shown infigure 2b . This slows down heat diffusion throughbeam 12 to the other side of the wall and its possible effect on wall failure. However, such an embedding is may not be needed. - Preferably, as shown, the part of the inner surface of
heat isolation layer 22 above and below fastener is parallel to the main surface of metal plate 20a., preferably from the highest to the lowest edges of height ofheat isolation layer 22, The parallel part of the inner surface extends in contact with the surface ofmetal plate 20a ofsandwich panel 10 both above and below the place where the head offastener 14 extends from the surface ofmetal plate 20a. This prevents thatfastener 14, or the part of the main surface ofmetal plate 20a can be heated by flow of heated air between the surface ofmetal plate 20a andheat isolation layer 22. Preferably,heat isolation layer 22 is also in contact with the surface ofmetal plate 20a left and right of the head offastener 14. - The thickness and extent of
heat isolation layer 22 is selected so that the cumulative heat flow to the wallpart surrounding bolts 14 throughheat isolation layer 22 during one hour, when the air temperature adjacent the heat isolation layer is 1100 degrees Celsius, is less than the heat flow needed to heat the wall part surrounding bolts to a level where the wall fails atbolts 14 when the wall is loaded with a weight up to thirty kilograms. Preferably, the heat flow through the wall part throughheat isolation layer 22 to thepart surrounding bolts 14 is smaller than heat flow due to other processes of heating that wall part. - In an embodiment,
heat isolation layer 22 may comprise a layer of a ceramic or mineral wool, such as stone wool for example. Preferably, allbolts 14 from which asandwich wall panel 10 is suspended are covered by aheat isolation layer 22 that extends over all thesebolts 14. Alternatively, separate heat isolation layers 22 may be applied overindividual bolts 14, or sub-sets of the bolts. On an embodiment a singleheat isolation layer 22 may be used that extends over a plurality of wall panels. Preferably heat isolation layer or layers 22 extends at least twenty mm from the edge of eachbolt 14 over the surrounding surface of metal plate 22a, and preferably at least fifty mm from the edge. Preferably, heat isolation layer is at least twenty mm thick. Preferably,heat isolation layer 22 is designed so that its heat conduction coefficient is less than 0,04 W/(m2Kelvin). Preferably allbolts 14 from which asandwich panel 10 is suspended are covered by a heat isolation layer as described. But of course, in addition to the covered bolts that suffice to keep up sandwich wall panel, there may be additional bolts that are not covered. It suffices that the covered bolts per se are able to carry the sandwich panel at least during a limited time interval that allows for escape from the fire. -
Figure 2b shows an embodiment according to the invention whereinheat isolation layer 22 is part of pre-form part, which further comprise acover 24, e.g. of metal such as steel, which may be directly or indirectly coupled tobeam 12, or to furtherheat isolation material 220 into whichbeam 12 is embedded, as shown infigure 2c also showing an embodiment according to the invention. Optionally, cover 24 enclosesheat isolation layer 22 on the outside, as shown infigure 2d , this prevents thatheat isolation layer 22 can be disturbed. Optionally, screws are used to connectcover 24 to themetal plate 20a at a level belowheat isolation layer 22, as shown infigure 2d showing a further embodiment according to the invention. When the preformed part is mounted oversandwich wall panel 10,heat isolation layer 22 is located between themetal cover 24 and the metal plate 22a of sandwich wall panel 10with whichheat isolation layer 22 is in contact. In another embodiment,heat isolation layer 22 may be attached tometal plate 20a first and optionally subsequently covered by ametal cover 24. Alternatively,heat isolation layer 22 itself may be attached by screws throughheat isolation layer 22 into themetal plate 20a on whichheat isolation layer 22 is provided, at a distance from bolts 14 (e.g. at least twenty mm distant). As such screws bear onlyheat isolation layer 22, they do not form a significant source of wall failure. - In other embodiments, from a
beam 12, asandwich panel 10 may be suspended from a plurality of beams at different heights, attached to each of these beams by a plurality of bolts. Preferably bolts connected to each of these beams are covered by a heat isolation layer in a way described in the preceding. - The capability of the wall to carry weight without significantly decreasing fire safety can be increased further in a number of ways. For example, a panel with thicker metal plates may be included between other sandwich panels.
Figure 3 shows an embodiment wherein anintermediate plate 30 is attached to a plurality of sandwich panel of a wall. When weight is attached tointermediate plate 30,intermediate plate 30 will distribute the weight over the plurality of sandwich panels. Thus a weight carrying capacity can be realized that is a sum of the weight carrying capacity of individual sandwich wall panels. -
Figure 4 shows an embodiment of a wall comprising firstsandwich wall panels 10 as described in the preceding, with metal plates of a first thickness. A further panel 40 (preferably also a sandwich panel) with a metal plate or plates of the same metal (e.g. steel) assandwich wall panels 10, is included between the first panels. The metal plate or plates offurther panel 40 have a second thickness greater than the first thickness (e.g. at least twice the first thickness). This makes it possible to increase the weight bearing capacity of the wall locally at the further panel, without increasing the weight of all panels in the wall.
Claims (6)
- A building construction with a wall that comprises- a sandwich panel (10), comprising a pair of parallel metal plates (20a,b), forming opposite parallel surfaces (20a,b) of the wall, and fiber material (21) between said metal plates (20a,b), glued to said metal plates (20a,b);- a beam (12), the sandwich panel (10) hanging from said beam (12) on fasteners (14) that extend into said beam (12); wherein the fasteners (14) extend through the sandwich panel (10) between the parallel surfaces (20a,b) into said beam (12);characterized in that the wall comprises- a heat isolation layer (22) on at least one side of the sandwich panel (10), over the fasteners (14) and over an area of the panel (10) surrounding the fasteners (14) on that side of the panel (10), andin that the building construction further comprises a heat isolation element that comprises said heat isolation layer (22) and a cover (24) attached over the heat isolation layer (22), the cover (24) serving as a mechanical coupling of the heat isolation layer (22) directly or indirectly to said beam (12) and/or the metal plate (20a) on said at least one side of the sandwich panel (10).
- A building construction according to claim 1, wherein the heat isolation layer extends (22) over all of said fasteners (14).
- A building construction according any of the preceding claims, wherein the heat isolation layer (22) extends in contact with the surface of the metal plate (20a) on said at least one side of the sandwich panel (10), above and below the place where heads of the fasteners (14) extend from the surface of the metal plate (20a).
- A building construction according to any of the preceding claims comprising a further panel (10) adjacent the sandwich panel (10), surfaces of the panel (10) and the further panel (40) forming adjacent parts of a surface of the wall, the metal plates (20a) of the first panel (10) having a first thickness and the further panel (40) having a metal plate or metal plates a second thickness larger than the first thickness.
- A method of fire proofing a building construction with a wall that comprises a sandwich panel (10), comprising a pair of parallel metal plates (20a,b), forming opposite parallel surfaces of the wall, and fiber material (21) between said metal plates (20a,b), glued to said metal plates (20a,b), the building construction comprising a beam, the method comprising hanging the sandwich panel (10) from said beam (12) on fasteners (14) that extend into the beam (12), wherein fasteners (14) extend through the sandwich panel (20) between the parallel surfaces (20a,b) and into the beam (12), characterized in that the method comprises applying a heat isolation layer (22) on at least one side of the sandwich panel (10), over the fasteners (14) and over an area of the panel (10) surrounding the fasteners (14) on that side of the panel (10), and in that the building construction further comprises a heat isolation element that comprises said heat isolation layer (22) and a cover (24) attached over the heat isolation layer (22), the cover (24) serving as a mechanical coupling of the heat isolation layer (22) directly or indirectly to said beam (12) and/or the metal plate (20a) on said at least one side of the sandwich panel (10).
- A method according to claim 5, wherein the fasteners (14) are self-tapping bolts, and a hole through the metal plate on said at least one side through which the self-tapping bolt enters the metal plate is tapped with the self-tapping bolt before applying the heat isolation layer (22).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2020810A NL2020810B1 (en) | 2018-04-23 | 2018-04-23 | Building construction with a sandwich panel wall and method of fire proofing such a building construction |
PCT/NL2019/050240 WO2019209107A1 (en) | 2018-04-23 | 2019-04-23 | Building construction with a sandwich panel wall and method of fire proofing such a building construction |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3784843A1 EP3784843A1 (en) | 2021-03-03 |
EP3784843B1 true EP3784843B1 (en) | 2024-03-20 |
Family
ID=62948296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19726197.7A Active EP3784843B1 (en) | 2018-04-23 | 2019-04-23 | Building construction with a sandwich panel wall and method of fire proofing such a building construction |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3784843B1 (en) |
DK (1) | DK3784843T3 (en) |
NL (1) | NL2020810B1 (en) |
WO (1) | WO2019209107A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11466470B1 (en) | 2021-04-27 | 2022-10-11 | TQC Precast LLC | Multi-level parking garage for wrap style building |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2693256A (en) * | 1948-10-15 | 1954-11-02 | Robertson Co H H | Wall panel |
WO2015188229A1 (en) * | 2014-06-10 | 2015-12-17 | Superpod Pty. Ltd. | Improvements in buildings |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8701813A (en) * | 1987-04-27 | 1988-11-16 | Rockwool Lapinus Bv | SANDWICH PANEL AND MODULAR CONSTRUCTION SYSTEM BASED ON IT. |
IT227125Y1 (en) * | 1992-10-22 | 1997-09-15 | Pagliarani Paolo | FIREPROOF PANEL STRUCTURE WITH INCREASED TECHNICAL RESISTANCE CHARACTERISTICS |
-
2018
- 2018-04-23 NL NL2020810A patent/NL2020810B1/en active
-
2019
- 2019-04-23 WO PCT/NL2019/050240 patent/WO2019209107A1/en unknown
- 2019-04-23 DK DK19726197.7T patent/DK3784843T3/en active
- 2019-04-23 EP EP19726197.7A patent/EP3784843B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2693256A (en) * | 1948-10-15 | 1954-11-02 | Robertson Co H H | Wall panel |
WO2015188229A1 (en) * | 2014-06-10 | 2015-12-17 | Superpod Pty. Ltd. | Improvements in buildings |
Also Published As
Publication number | Publication date |
---|---|
NL2020810B1 (en) | 2019-10-31 |
WO2019209107A1 (en) | 2019-10-31 |
DK3784843T3 (en) | 2024-05-06 |
EP3784843A1 (en) | 2021-03-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7856775B2 (en) | Thermal insulation and sealing means for a safing slot | |
US7424793B1 (en) | Interlocking curtain wall insulation system | |
KR101126900B1 (en) | Frame for insulated fire resistant window | |
DK2176600T3 (en) | Isolation of a duct towards a wall or ceiling penetration | |
KR101993745B1 (en) | Fireproof partition structure and its construction method | |
KR101655868B1 (en) | Construction method of outside wall structure for preventing spread of fire | |
EP3784843B1 (en) | Building construction with a sandwich panel wall and method of fire proofing such a building construction | |
JP5398671B2 (en) | Fireproof wall structure of partition wall | |
KR101835071B1 (en) | Assembly type light weight partition pannel having fire-resistant | |
JP5079486B2 (en) | Eaves back ceiling structure, fireproof reinforcement body, and fireproof reinforcement method for eaves back ceiling structure | |
EP0147647B1 (en) | A post profile for internal partitions | |
JP2023098188A (en) | Fireproof board insulation structure for curtain wall and composite fireproof covering structure | |
KR102476088B1 (en) | A reinforcing member of a fire resistance panel and the fire resistance panel using the reinforcing member | |
EP2218841B1 (en) | Fire wall | |
JP7073545B2 (en) | How to build a heat-proof and fire-proof wall and a heat-proof and fire-resistant wall | |
JP7229085B2 (en) | partition fire wall | |
EP3739140B1 (en) | A fire retaining wall structure assembly for partitioning adjacent spaces | |
KR102642961B1 (en) | Fire resistance panel | |
JP2022050971A (en) | Fireproof insulation arrangement, fireproof insulation method, and fireproof insulation structure | |
JP2001115576A (en) | Fireproof partition wall construction method of structural building | |
JP2023098187A (en) | Fireproof board support structure and composite fireproof covering structure | |
JP6776015B2 (en) | Reverse beam fireproof structure | |
JP2019218851A (en) | Junction structure | |
JP2022161467A (en) | Exterior wall structure of warehouse and method of constructing the same | |
JP2019094653A (en) | Fireproof structure wall |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20201027 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: INTERDAM HOLDING B.V. |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GOUDSWAARD, PAULUS CORNELIS Inventor name: EGBERTS, JOHANNES ELIZABETH MARIA |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20230324 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20231031 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602019048587 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 Effective date: 20240503 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20240418 Year of fee payment: 6 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |