Week 5 - Elaborating detail
- bettinaevincenti
- Apr 5, 2022
- 2 min read
Updated: May 25, 2022
Learning from precedents
Detail | Material
The chosen materials were wood / bamboo. I will be exploring a detail from a Hotel in Obanazawa (Schittich, 2008 p42), hoping to understand the way the materials are combined and arranged.
The Ginzan Onsen Fujiya is a completely wooden hotel 4 storeys high designed by Kengo Kuma in the prefecture of Yamagata, Japan. The existing façade has been restructured using the centuries-old wood of the original structure, whereas the internal space has been reorganised by inserting an atrium.
The detail that caught my eye was of this "floating" staircase.
The materials used were:
Japanese paper, adhesive fixed aluminium hydroxide paper 2x 12.5 mm plasterboard 9 mm laminated sheeting
Japanese paper, adhesive fixed
translucent acrylic glass
1.6 mm steel sheeting, bent
Lighting element, magnetically fixed
15 mm elm parquet, 12 mm laminated sheeting 60 mm insulation, 18 mm laminated sheeting
36 mm elm stair tread
9 mm Ø steel rod, treated with phosphoric acid
2 x 14 mm Ø steel sleeve, phosphoric acid
Japanese paper, adhesive fixed aluminium hydroxide paper 2x12.5 mm plasterboard
bamboo cladding on elm framing
The staircase definitely fits with the design of the building though the use of lightweight materials and aesthetics to compliment the gentle bamboo across the building. The stairs may be fabricated off site but they would have been assembled insitu.
The initial thoughts were that the stairs could be cantilevered or they were help up by the rods connecting them to the ceiling.
When you study the image and technical drawings its hard to tell what detail is happening but I think its a bit of both. It can not just be the rods supporting them as the ceiling is shown as bamboo in the image, though the sectional drawing makes it seem as if that is possible. A partial cantilever detail is very possible.
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