project

X-Madrid Shell

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General information

  • Location address
    Alcorcón, Madrid
  • Location country
    Spain
  • Year of construction
    2019
  • Short description of the replacement or dismantling
    The X-Madrid dome is a landmark in the Alcorcón metropolitan landscape and the icon of the shopping center refurbishment. For the covering of the main exterior space an explicitly enthusiastic form is designed, collecting the activity of a public square that is designed as diaphanous, permeable to the breeze and sifted light: a metropolitan agora.
  • Name of the client/building owner
    Merlin Properties
  • Function of building
    Shops and stores
  • Degree of enclosure
    Open structure
  • Climatic zone
    Mediterranean - mild winters, dry hot summers
  • Number of layers
    mono-layer
  • Type of application of the membrane
    covering
  • Primary function of the tensile structure
    • Daylight gains
    • Rain protection
    • Space defining elements
    • Sun protection
    • Wind protection

Description

This new centrality pole landmark is realised with a polygonal structure of steel beams and covered with a membrane of 75 meters in diameter and a free height of 25 meters, offering a leisure oriented technological aesthetic away from the plastic image traditionally associated with shopping malls.
The continuous surface is a membrane formed by 19 conoids tensioned by flying masts and a continuous sinuous perimeter tensioned by cables. The polygonal structure of beams increases the valence of its nodes as it approaches the supports and globally approaches a spherical cap which includes a cantilever beam that acts like a ring beam and extends the membrane as a shed collecting the visitors from the perimeter buildings.
The numerical model included both membrane and steel structure, where results from wind tunnel analysis where mapped.

Description of the environmental conditions

General comments, links

coda-office.com/
TensiNews 38

Material of the cover

  • Cable-net/Fabric/Hybrid/Foil
    Fabric
  • Material Fabric/Foil
    Polyester
  • Material coating
    PVC

Main dimensions and form

  • Covered surface (m2)
    7848
  • Maximum height (m)
    25
  • Total width (m)
    75
  • Form single element
    Anticlastic
  • Form entire structure
    Synclastic

Duration of use

  • Temporary or permanent structure
    Permanent
  • Design lifespan in years
    31-..

Involved companies

Editor