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Morique Building | 1992 | Membrane | Japan

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General information
Location address Osaka
Location country Japan
Year of construction 1992
Name of the client/building owner Morique Building Co.
Function of building Hybrid buildings
Climatic zone Temperate - cold winters and mild summers
Short description of the project Design
Clouds and water, symbollically represented as aluminium and fabric panels in a spatially curved curtain wall fašade of a high-rise building: The Japanese architect Keizo Sataka wants to visually and formally create an expression of softness and tenderness, which contrasts with the angular shapes, hard materials and sharp edges of modern cities. Three-dimensional curved surfaces are intended to give the city a new, soft skin. As an expression of transition the architecture combines the standard aluminum fašade panels of today with innovative panels of coated fabrics. Whether his architectural philosophy stands up to close scrutiny is one matter; the built architecture, however, is fresh and convincing.

Plan, use
The building has a more or less rectangular plan with 9 storeys, 3 basements and a 4-storey penthouse. The leisure complex includes restaurants, bars, showrooms and a disco with a total floor area of 1978 m▓.

Structure
The high-rise structure consists of a three-storey reinforced concrete basement and composite steel and concrete decks in the upper floors. The design wind speed (typhoon load) is 60 m/sec (216 km/h). A wind tunnel test was not considered necessary.

Membrane panels and substructure
The aluminium and fabric panels are rain screen panels of a curtain wall fašade in front of a space-enclosing and thermally insulating inner fašade of polycarbonate panels. They are equipped with a bracing steel frame. All panels were prefabricated in the works, where the fabric membrane was prestressed against the steel frames. It is one of the first applications of coated fabric as a curtain wall fašade. (Exhibition Hall 4 in Friedrichshafen), Germany is another, earlier example; it was erected around 1970). For Japan it is also the first building in which PTFE-coated glass fibre fabric (Shearfill II from Nitto Chemfab Co., Ltd.). As the fašade was developed on a triangular grid the prefabricated panels consists of a changing number of grid triangles. They are braced by a welded steel frame (U 150 x 75 x 6,5/10 mm, CHS ě 48,6 x 2,3 mm). At the edge the membrane is turned around the steel edge tubes of the frame and anchored in the steel U-section by clamping strip (FI 50 x 12 mm) and a welded on boltrope. At the clamps and turning points it is padded by neoprene strips, which also provide a wind and weather-tight seal. The panels are sealed and connected to each other by means of outer weather strips running up to a central cold rolled U - section (U 40 x 40 x 3 mm), where they are closed with a neoprene zipper gasket. The panel frames are welded to a hexagonal plate connecte via a steel plate (t = 12 mm) to the floor edge member (U 200 x 80 x 7,5/11 mm) and are thus anchored in the reinforced concrete floor behind (t = 150 mm).

[Soft Shells, Hans-Joachim Schock, p68,70]
Misc. project details
References High-Rise Fašade, Osaka, Japan - Soft Shells
Duration of use
Temporary or permanent structure Temporary
Convertible or mobile Convertible
Design lifespan in years 00-05
Material of the cover
Cable-net/Textile/Hybrid/Foil Cable
Material Fabric/Foil Fiberglass
Material coating PTFE
Main dimensions and form
Involved companies
Architects Keizo Sataka
Engineers Taiyo Kogyo Corporation
Editor
Editor Marijke Mollaert
 
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