Tensile Fabric Structures

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Text of Tensile Fabric Structures

  • 1. TENSIONEDFABRICSTRUCTURES THE COLUMBUS CENTER Inner Harbor Baltimore, Maryland CLOSED TENSIONED FABRIC STRUCTURE

2. 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 3. PIER SIX PAVILION Baltimore, Maryland OPEN STRUCTURE 4. CHICAGOS NAVY PIER 5.

  • 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 CONDITIONSFALSE
  • FABRIC IS ELASTIC AND STRETCHESFabric has a strong tensile strength and
  • will creep (stretch very slightly) only a few percent over 20 years of use.

COMMON MISCONCEPTIONS 6. TYPES OF FABRIC STRUCTURES

  • Saddle roof
  • Mast supported
  • Arch supported
  • Point supported
  • Combinations

7. SADDLE ROOF

  • Four or more point system when the fabric is stretched between a set of alternating high and low points

8. 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.

9. ARCH SUPPORTED

  • Curved compression members are used as the main supporting elements and cross arches are used for lateral stability.

10. ALUMINUM FRAME SUPPORT 11. COMBINATIONS

  • Combination of several support types.

12. COMPONENTS 13. BASE PLATE

  • Connection to concrete foundation pillar
  • MAST SUPPORTED

14.

  • 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.

15. MEMBRANE Forms the enclosure of the structure. Connections can be gluedor heat welded. 16. MEMBRANES

  • PVC coated polyester(polyvinylchloride)
  • Silicon coated glass
  • Teflon coated glassP.T.F.E(polytetrafluroethylene)

17.

  • 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 18. SPECIALIZED HARDWARE Tensioner Extruded section with membrane plate and centenary cables Tripod head with centenary cables Centenary cables at a side connection SPECIALIZED HARDWARE 19. SPECIALIZED HARDWARE

  • CABLE CLAMPS

20. WATER DRAINAGE VIA MEMBRANE PLATES OPEN STRUCTURE 21. WATER DRAINAGE CLOSED STRUCTURE 22. SOLAR BEHAVIOR 23. 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.

24. LINKS.

  • BIRDAIR, INC. -
    • www.birdair.com
  • SPRUNG INSTANT STRUCTURES LTD.
    • www.sprung.com
  • FABRIC ARCHITECTURE
    • www.fabricarchitecture.co.uk
  • FABRITEC STRUCTURES
    • www.shadeconcepts.com

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