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Tensile Fabric Structures
 

Tensile Fabric Structures

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    Tensile Fabric Structures Tensile Fabric Structures Presentation Transcript

    • TENSIONED FABRIC STRUCTURES THE COLUMBUS CENTER Inner Harbor Baltimore, Maryland CLOSED TENSIONED FABRIC STRUCTURE
    • Tensioned Fabric Structure: A structure where the exterior shell is a fabric material spread over a framework. The fabric is maintained in tension in all directions to provide stability. DENVER INTERNATIONAL AIRPORT
    • PIER SIX PAVILION Baltimore, Maryland OPEN STRUCTURE
    • CHICAGO’S NAVY PIER
      • Unique designs
      • Lightweight and flexible
      • Environmentally sensitive
      • High strength weight ratio
      • Little to no rigidity
      • Loss of tension is dangerous for stability
      • Thermal values limit use
      DISADVANTAGES ADVANTAGES
      • FABRIC STRUCTURES CANNOT TAKE HEAVY WEATHER CONDITIONS FALSE
      • FABRIC IS ELASTIC AND STRETCHES Fabric has a strong tensile strength and
      • will creep (stretch very slightly) only a few percent over 20 years of use.
      COMMON MISCONCEPTIONS
    • TYPES OF FABRIC STRUCTURES
      • Saddle roof
      • Mast supported
      • Arch supported
      • Point supported
      • Combinations
    • SADDLE ROOF
      • Four or more point system when the fabric is stretched between a set of alternating high and low points
    • MAST SUPPORTED
      • Tent - like structures containing one or more peaks supported by poles (masts) or a compression ring that connects the fabric to the central support.
    • ARCH SUPPORTED
      • Curved compression members are used as the main supporting elements and cross arches are used for lateral stability.
    • ALUMINUM FRAME SUPPORT
    • COMBINATIONS
      • Combination of several support types.
    • COMPONENTS
    • BASE PLATE
      • Connection to concrete foundation pillar
      • MAST SUPPORTED
      • BALE RING / MEMBRANE PLATE
      • Provide a link between the membrane and structural elements..
        • Bale rings are used at the top of conical shapes.
        • Membrane plates accept centenary cables and pin connection hardware.
    • MEMBRANE Forms the enclosure of the structure. Connections can be glued or heat welded.
    • MEMBRANES
      • PVC coated polyester (polyvinylchloride)
      • Silicon coated glass
      • Teflon coated glass P.T.F.E (polytetrafluroethylene)
      • PVC
          • Less expensive
          • 15 to 20 year life span
          • Easy to erect
      • SILICON GLASS
          • Higher tensile strength
          • Brittle, subject to damage from flexing
          • 30+ year life span
      • TEFLON GLASS
          • Similar to silicon glass, less brittle.
      TYPES OF FABRIC MEMBRANES
    • SPECIALIZED HARDWARE Tensioner Extruded section with membrane plate and centenary cables Tripod head with centenary cables Centenary cables at a side connection SPECIALIZED HARDWARE
    • SPECIALIZED HARDWARE
      • CABLE CLAMPS
    • WATER DRAINAGE VIA MEMBRANE PLATES OPEN STRUCTURE
    • WATER DRAINAGE CLOSED STRUCTURE
    • SOLAR BEHAVIOR
    • ENVIRONMENTAL IMPACT
      • Longer life cycles of materials.
      • Materials can be re-used in form.
      • Most materials are completely recyclable.
      • Less impact on site.
      • Less construction debris after demolition.
    • LINKS……………….
      • BIRDAIR, INC. -
        • www.birdair.com
      • SPRUNG INSTANT STRUCTURES LTD.
        • www.sprung.com
      • FABRIC ARCHITECTURE
        • www.fabricarchitecture.co.uk
      • FABRITEC STRUCTURES
        • www.shadeconcepts.com
      end