Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
  • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
  • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
  • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
  • E04D3/352—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B7/00—Roofs; Roof construction with regard to insulation
  • E04B7/08—Vaulted roofs
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B7/00—Roofs; Roof construction with regard to insulation
  • E04B7/12—Roofs; Roof construction with regard to insulation formed in bays, e.g. sawtooth roofs
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B7/00—Roofs; Roof construction with regard to insulation
  • E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
  • E04B7/22—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material
• • 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
• • 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
  • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
  • E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
  • E04C2/328—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material slightly bowed or folded panels not otherwise provided for
• • 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
  • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
  • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
  • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
  • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
  • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation

Definitions

• the present invention relates to a cantilevered roof construction accor ⁇ ding to the preamble of Claim 1.
• a cantilevered roof construction accor ⁇ ding to the preamble of Claim 1.
• 1,225,152 which describes a roof section consisting of two metal outer and inner plates respectively which lie at a distance from each other and between which a foam material is disposed. These sections or elements are coupled to each other. It is stated that such a construction is supported at regular intervals at right angles to the lengthwise direction by sup ⁇ porting walls, beams or the like.
• roof elements The disadvantage of such roof elements is that the free length to be spanned is normally about 6 metres, and is a maximum of 8 metres. This means that through the presence of walls or horizontal beams supporting the roof elements, which walls or beams are in turn supported by vertical co ⁇ lumns, only a limited free floor surface in the part of the building below the roof construction can be obtained.
• the object of the present invention is to improve this construction so that greater support-free covered areas with an open layout are obtained. This object is achieved in the case of the abovementioned roof construction by the characterizing features of Claim 1.
• the foam exhibits strong creep tendencies, with the result that lengthy pressure loading is not acceptable.
• the foam is thus used only as an insulating and filling material.
• US Patent Specification 3,732,138 discloses a flat panel construction.
• the flat character means that it is simply impossible to obtain the strength which can be achieved by the present invention, so that a greater number of supports is always necessary.
• roof elements according to US Patent Specification 3,732,138 can be used only as a sound-insulating and sealing construction, which must be sup ⁇ ported on yet a further construction. Rigidity and strength are reduced through the indirect connection of the body to the top plate by way of the foam. The absence of a foam layer extending over the full thickness of the section means that the strength which can be achieved with the roof elements according to the invention cannot be obtained.
• the connecting sections and the edge sections of the roof elements will generally be made of metal or plastic material.
• the connecting sections are preferably provided in some way with insulation, so that no direct heat conduction between the outer skin and the inner skin of the sandwich con ⁇ struction is possible, and the risk of thermal bridges is avoided.
• the edge sections can be provided with means which prevent shifting relative to each other after fitting. For example, adjacent edge sections can be provided with complementary teeth.
• conduit means in the space between the inner skin and the outer skin. It is also possible to provide openings in the sandwich construction for the fitting of hatches, windows etc. Moreover, it is pos ⁇ sible to fit fastenings on the above-described connecting sections, for articles to be suspended from the roof elements. Separate connecting sec ⁇ tions can also be fitted for this purpose.
• the longitu ⁇ dinal edges of adjacent roof elements are profiled and provided with fas- tening means for the purpose of making these elements interact constructionally.
• These fastening means can act in order to clamp parts of adjacent roof elements against each other.
• the fastening means it is possible for the fastening means to be designed to make adjacent roof elements interact at the fastening point in the direction essentially parallel to the contact line on both roof elements.
• an up and down, essentially arched construction For example, it is possible to make at least one of said arched parts trapezoidal. Other variants between a trapezium shape and a pure arch shape are conceivable.
• Fig. 1 shows two adjacent roof elements in cross-section, combined to form the roof construction according to the invention
• Fig. 2 shows a detail of the edge section of an element in perspective view.
• each roof element has a working breadth of about 2.40 m, a length of approxi ⁇ mately 32 m and a total wall thickness from about 75 mm, while the height of a "corrugation" can be about 1.40 m.
• Each roof element consists of an outer skin 1 and an inner skin 2.
• outer and inner skin will always be inverted, and the connecting sections 5 and the insulation 7 can also be used inverted.
• This foam layer, com ⁇ bined with plastic section 4 provides a constructional connection between the inner and outer skin, prevents wrinkling or buckling of the outer skin, and acts as a spacer and gives the construction the required insulating properties.
• Connecting sections 5 are present, in order to give the sand ⁇ wich construction thus obtained sufficient rigidity. Fitting of the con ⁇ necting sections, which operate in the lengthwise direction, prevents the outer skin 1 and inner skin 2 from being able to deform relative to each other.
• These connecting sections are of great importance for the bearing power of the roof construction.
• insulation 7 is incorporated at least at one side of said connecting sections 5.
• the roof elements are coupled together by the edge sections 4.
• Each edge section comprises a number of teeth 9 which are spaced apart and are fitted in such a way that when two adjacent roof elements are slid into each other movement in a direction at right angles to the longitudinal axis of the teeth is not possible.
• Strips 13 of plastic material are incorporated in order to avoid thermal bridges.
• the design of the edge sections 4 will provide a first seal against wind and water. Further sealing is provided by the strips 13 in order to prevent wind and moisture from entering as far as possible.
• fastening means 12 are indicated as an example for pressing the panels against each other. These fastening means are passed through an opening 14 in edge section 4.
• the shearing forces acting between the two panels are absorbed by contact pressure, mutual friction, and by direct force transmission by way of the fastening means and teeth 9.
• the neutral line is indicated by 8, and it appears that the connection between two adjacent roof elements is provided precisely at the point of the neu ⁇ tral line.
• fastening means 12 shown here which are inserted from one side and do not come into contact with the environment at the other side
• fastening means which pull the adjacent roof elements towards each other in the direction parallel to the contact line at the connecting point, i.e. in the direction at right angles to the direction of the fastening means 12 in the drawing
• fastening by gluing or sliding or snapping adjacent roof elements into each other is conceivable.
• the mutual fastening it is possible for the mutual fastening to lie slightly outside this neutral line, and a deviation of 30% of the total height of the roof construction upwards and downwards lies within the scope of the present invention. Making the connection at this point ensures that shearing forces are of necessity essentially absorbed. All parts of the roof elements which can be adversely affected by the environment can be provided with a protective covering.
• Conduits 10 can be fitted in the foam layer 3.
• Said conduits can extend in all directions and are suitable for multiple purposes, such as water, energy and commi--nications.
• the foam of the foam layer can be any foam which is known in the prior art, and as an example comprises polyurethane foam which is injected into the space between the outer skin and inner skin or is placed therein by gluing.
• roof elements instead of the above-described symmetrical solution for the roof elements, it is quite possible to use different roof elements. This can be important, for example, for the materials used for the inner and outer skin, but it is also conceivable for the "trough” to be a different shape from the "ridge".
• One of these parts can be, for example, trapezoidal in shape, or can be any other shape lying between trapezoidal and corrugated.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Roof Covering Using Slabs Or Stiff Sheets (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19863677

Family Applications (1)

Country Status (6)

Cited By (2)

Families Citing this family (26)

Citations (7)

Family Cites Families (20)

• 1994
  • 1994-01-07 NL NL9400028A patent/NL9400028A/nl not_active Application Discontinuation
• 1995
  • 1995-01-09 JP JP7518418A patent/JPH09510271A/ja active Pending
  • 1995-01-09 US US08/669,427 patent/US5815989A/en not_active Expired - Fee Related
  • 1995-01-09 AU AU13274/95A patent/AU1327495A/en not_active Abandoned
  • 1995-01-09 EP EP95904694A patent/EP0796379A1/en not_active Withdrawn
  • 1995-01-09 WO PCT/NL1995/000012 patent/WO1995018897A1/en not_active Application Discontinuation

Patent Citations (7)

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