Halftecture O / Shuhei Endo

Architects: Shuhei Endo
Location: Chuo-ku, Osaka,
Structure System: Suspended Sheet
Project year: 2005
Principal use: Public Lavatory
Site Area: 580 sqm
Constructed Area: 103 sqm
Photographs: Shuhei Endo

This work of architecture consists of a single flat steel sheet made of anticorrosive steel. Truss-shaped structural walls composed of 25mm-thick steel sheet have been set at the right and left ends, and a catenary curve made of 16mm- thick steel sheet spans the 20m gap between these support points.

Toilet booths have been set in the open space obtained below. The outer faces of the right and left walls, upon which the roof has been placed, and inclined toward each other, and during construction the shapes were fixed and joined after they had twisted and warped under the effects of gravity.

Cite: "Halftecture O / Shuhei Endo" 31 Dec 2008. ArchDaily. Accessed 23 Sep 2014. <http://www.archdaily.com/?p=11008>


  1. Thumb up Thumb down 0

    I have a small, nagging worry about a lot of snow falling on the roof (but surely they’ve thought of that); otherwise I like this very, very much.

  2. Thumb up Thumb down 0

    Fortunately, snow never happens in Osaka.
    the city of Osaka is in an almost humid-warmer climate. in a year, highest temp is 22.4 °C, lowest temp is 14.2 °C, annual rainfall is around 132.9 mm.

    Thus, if this light structure could respond to this ample precipitation, like water harvestation system, for the toilet-washoff, that would be a potential idea.

  3. Thumb up Thumb down 0

    Nice work i like it a lot.
    Don’t forget that its ultimately the boundary conditions that determines the shape, as with most tensile structures. I was a little worried about ponding on the surface until I saw it had been made hyparshaped. Would have been nice also to see some sizes on foundations and the detailing etc. since its a nice piece of engineering art.

Share your thoughts