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Tallest Timber Tower Tipped for Tokyo

posted by Fnord666 on Tuesday February 20 2018, @09:46PM   Printer-friendly
from the green-architecture dept.

-- OriginalOwner_ writes:

TreeHugger reports:

Sumitomo Forestry, an industry giant in Japan, [is] pivoting to plyscrapers and proposing a 70-story, 350 meter (1148') tower for the Marunouchi district in Tokyo. It's called W350, the plan being that it will be finished in 2041, the 350th anniversary of the founding of the company.

[...] Using a hybrid 9:1 ratio of wood to steel, Sumitomo Forestry aims to replace concrete, which is one of the world's largest carbon footprint contributors. The skyscraper would be a 70-floor mixed-use building that would include a hotel, office space, commercial space, and residences. Wrap-around balconies at different intervals would be planted with lush wildlife. And greenery would extend throughout the entire complex, creating a vertical forest where humans and wildlife can flourish.

[...] It is a brace tube structure, "a structural system that forms a cylindrical shell (brace tube) with columns / beams and braces. By placing braces diagonally in a set of shafts assembled with columns and beams, it prevents the building from deforming against lateral forces such as earthquakes and wind."

The images are beautiful.

Previously: Super Wood Could Replace Steel
The Case for Wooden Skyscrapers
Can You Build A Safe, Sustainable Skyscraper Out Of Wood?

Original Submission

 
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  • (Score: 2) by MichaelDavidCrawford on Wednesday February 21 2018, @02:21AM (2 children)

    by MichaelDavidCrawford (2339) Subscriber Badge <mdcrawford@gmail.com> on Wednesday February 21 2018, @02:21AM (#640993) Homepage Journal

    Concrete is a mixture of rocks, sand and Portland Cement.

    To make Portland Cement if I understand correct you roast limestone in a kiln

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  • (Score: 0) by Anonymous Coward on Wednesday February 21 2018, @07:18AM (1 child)

    by Anonymous Coward on Wednesday February 21 2018, @07:18AM (#641066)

    And that limestone can be roasted with CO2-neutral heat instead of gas meaning that concrete can be CO2-neutral too.

    Anyway, concrete production is not what is driving global warming. What is driving global warming is us digging up carbon from the ground - coal, oil and gas. What we use it for doesn't even matter too much then.

    • (Score: 2) by PiMuNu on Wednesday February 21 2018, @01:00PM

      by PiMuNu (3823) on Wednesday February 21 2018, @01:00PM (#641146)

      > What is driving global warming is us digging up carbon from the ground

      Don't be woolly. Greenhouse gases drive global warming.