project

Buquebus Bus & Cars parking

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General information

  • Location address
    Montevideo
  • Location country
    Uruguay
  • Year of construction
    2008
  • Function of building
    Vehicle services
  • Degree of enclosure
    Open structure
  • Number of layers
    mono-layer
  • Type of application of the membrane
    covering
  • Primary function of the tensile structure
    • Rain protection
    • Sun protection

Description

At the transit area in the port of Montevideo a covered parking for bus and cars was asked for those travelling with the ferry connecting Montevideo and Buenos Aires. The objective of the parking roof is to provide rain and sun protection.

The designers developed a simple, self-supporting structure with independent membranes. The area is covered without internal supports to optimize the parking facilities and all the rainwater is directed to the edge perimeter. The membrane is stretched over 5 archs, prestressed and stabilized by 4 cables. The structure is composed of 5 metal arches with a span of 34,47m, separated each 9m. Longitudinal stability is given with 3 lines of beams (one central and two intermediate) and a perimeter 3 dimensional beam which is also suitable for anchoring the intermediate cable turnbuckles.

The structure was produced in the metal workshop, for parts, then assembled on site and the final assembly and welding was performed in place with the help cranes. The arches are made of round pipes 8", 4” and 2"1/2 and the anchorage plates in 1"1/2. The membrane was produced simultaneously in the workshop, and once the structure was finished, the membrane was installed in 8 days. The membranes are made of polyester fabric PES HT 1100dtex, 6x6 threads per cm with PVC coating, UV protection on the outside, a weight of 900g/m² and a breaking load limit of 38daN/cm.
The prestressing was performed by tying the ropes: intermediate cables through the central modules and edge cables in the extremes modules. Of all the possible options the prestressed PVC membrane is the better one from the point of view of shape and aesthetics, as well as translucency of sunlight, without of ultraviolet or infrared radiation.

Description of the environmental conditions

Material of the cover

  • Cable-net/Fabric/Hybrid/Foil
    Fabric
  • Material Fabric/Foil
    PVC - coated polyester fabric
  • Weight (g/m2)
    900

Main dimensions and form

  • Covered surface (m2)
    1925
  • Form single element
    Anticlastic

Duration of use

  • Temporary or permanent structure
    Permanent
  • Convertible or mobile
    Convertible

Involved companies

Editor