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Renovation of "KANBAN-style" / Rei Mitsui Architects

Renovation of "KANBAN-style" / Rei Mitsui Architects

© Jérémie Souteyrat © Jérémie Souteyrat © Jérémie Souteyrat © Jérémie Souteyrat + 36

Chuo, Japan
  • Architects Authors of this architecture project Rei Mitsui Architects
  • Project Year Brands with products used in this architecture project
    2016
  • Photographer Created with Sketch.
  • Manufacturers Brands with products used in this architecture project
    Chukei Techno, Knobs & Knockers, WEST inx Ltd.
  • Structural Engineer

    Tetsuya Emura
  • Parametric programming

    Yusuke Oono/ Domino Architects
More Specs Less Specs
© Jérémie Souteyrat
© Jérémie Souteyrat

*KANBAN-style; Billboard architecture, built in the early Showa period. Typically the ground floor is served as retail space, with displaying windows at the storefront.

© Jérémie Souteyrat
© Jérémie Souteyrat
Diagram
Diagram
© Jérémie Souteyrat
© Jérémie Souteyrat

The client's request was simple. First, to keep the facade of the Billboard architecture. Second, to enforce seismic retrofit to resist earthquakes.

© Jérémie Souteyrat
© Jérémie Souteyrat

There was a tailor shop closed for over ten years. The existing building was almost abandoned, and the damage was disastrous. Although it seemed impossible, the client strongly wished for the building to remain. We decided to lift-up the complete building, and reconstruct the whole foundation and damaged elements.

Plan
Plan

There was no earthquake resisting elements at ground floor. If we chosen ordinary way of reinforcement, such as: -bearing wall or brace-, it was impossible to keep the original facade with an open storefront.

© Jérémie Souteyrat
© Jérémie Souteyrat

We applied an arch-frame made of Ductile Cast Iron as earthquake resisting elements not to disturb the facade. Its woven likes shape comes from structural analysis. The diameter of each stripes transforms smoothly to follow structural internal stress.

Details
Details

Casting was the most efficient way to produce numerous parts, especially when its shape is complicated or decorative. Furthermore, of its rough and warm texture, Cast Iron suited the existing old timber structure.

© Jérémie Souteyrat
© Jérémie Souteyrat

Although it is the Cast Iron, it is very light, because of its extremely thin and light frame by structural analysis with the 3D parametric software (Grasshopper).  The weight of the cast iron frame is only 55 kilograms, so it is possible to assemble by manpower.

*Store space is now rent for EDOKIRIKO glass shop.

© Jérémie Souteyrat
© Jérémie Souteyrat

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Project location

Address: Nihonbashi, Chuo, Tokyo 103-0027, Japan

Location to be used only as a reference. It could indicate city/country but not exact address.
About this office
Cite: "Renovation of "KANBAN-style" / Rei Mitsui Architects" 16 Aug 2016. ArchDaily. Accessed . <https://www.archdaily.com/793214/renovation-of-kanban-style-rei-mitsui-architects/> ISSN 0719-8884
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© Jérémie Souteyrat

"KANBAN-style"广告牌建筑改造 / Rei Mitsui Architects

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