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

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?


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  • (Score: 0) by Anonymous Coward on Tuesday February 20 2018, @09:54PM (1 child)

    by Anonymous Coward on Tuesday February 20 2018, @09:54PM (#640874)
    Forget the plants, what about the structure?
  • (Score: 2) by Freeman on Tuesday February 20 2018, @09:56PM (5 children)

    by Freeman (732) on Tuesday February 20 2018, @09:56PM (#640878) Journal

    Wood is Organic. It will decay much faster than metal or rock. They may be able to treat the wood in such a way as to not make it into a giant tinder box, but I would not have good feelings about working in one every day. Wood is beautiful, but fire can be as well. Fire's not so beautiful, if you're surrounded by it in a burning building. How quickly would the Twin Towers have gone down, if they had been made of wood? How many would have made it out by comparison?

    --
    Joshua 1:9 "Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee"
    • (Score: 5, Insightful) by takyon on Tuesday February 20 2018, @10:06PM (1 child)

      by takyon (881) <{takyon} {at} {soylentnews.org}> on Tuesday February 20 2018, @10:06PM (#640884) Journal

      Jet fuel can't melt wood beams.

      --
      [SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]
      • (Score: 2, Troll) by realDonaldTrump on Thursday February 22 2018, @01:36AM

        by realDonaldTrump (6614) on Thursday February 22 2018, @01:36AM (#641558) Homepage Journal

        They say it was Jets, you may find it was THERMITE. We went after Iraq, they did not knock down the World Trade Center. It wasn’t the Iraqis that knocked down the World Trade Center, we went after Iraq, we decimated the country, Iran’s taking over, OK? But it wasn’t the Iraqis, you will find out who really knocked down the World Trade Center. Because they have papers in there that are very secret, you may find it’s the Saudis, OK? But you will find out.

    • (Score: 5, Interesting) by bob_super on Tuesday February 20 2018, @10:12PM (1 child)

      by bob_super (1357) on Tuesday February 20 2018, @10:12PM (#640892)

      Solid wood is a terrible heat conductor, and burns very slowly. That's why you put he big log in the chimney to last the whole night.
      While it's burning, it may retain more strength than many metals exposed to the same amount of heat (they're not burning, but everything but the concrete does). Also, the assembly process and the fastening being very different, it would be hard to tell how long the Twin towers would have stood if made of wood. The blunt trauma would have sheared off some columns, but the explosion might have had less impact.

      As far as decay, TFA explains that the structure is designed to enable swapping timbers.
      Most modern buildings are only designed for a hundred years or so, while wooden beams in castles can be a thousand years, and many battles, old.

      • (Score: 1, Insightful) by Anonymous Coward on Wednesday February 21 2018, @01:48AM

        by Anonymous Coward on Wednesday February 21 2018, @01:48AM (#640983)

        In the chimney? I put mine in the stove and keep the chimney clear.

    • (Score: 2) by JoeMerchant on Wednesday February 21 2018, @12:00AM

      by JoeMerchant (3937) on Wednesday February 21 2018, @12:00AM (#640941)

      The thing I dislike the most about wood construction around here is mold, and termites. Wood (even when treated) supports the growth of all kinds of things in the dark, and if you should ever get any water on it, it only gets worse.

      --
      🌻🌻 [google.com]
  • (Score: 2) by JoeMerchant on Tuesday February 20 2018, @09:57PM (5 children)

    by JoeMerchant (3937) on Tuesday February 20 2018, @09:57PM (#640879)

    Sure, it can (and will) be made fire resistant, but once that candle lights....

    --
    🌻🌻 [google.com]
    • (Score: 4, Interesting) by zocalo on Tuesday February 20 2018, @10:12PM (2 children)

      by zocalo (302) on Tuesday February 20 2018, @10:12PM (#640891)
      You do realise that a lot of fire doors are made out of wood, right? With the right density and treatment they can easily withstand a decent blaze for at least an hour (FD60 rating), and it doesn't matter what your building is made of - it's still burning away after an hour, then it's probably going to be a write-off anyway. Wood also has a lot more resilience against tremors than concrete, something that might be quite relevant for a structure in Japan, and longevity isn't much of a problem once the timber has settled - it almost assumes a petrified state, with 1,000+ year old timbers to be found in numerous buildings across Europe and Asia. Provided they can get the necessary structural strength and allow sufficient time for evacuation, this might actually be a better choice than more contemporary materials like steel, glass, and concrete - all of which have high carbon footprints.
      --
      UNIX? They're not even circumcised! Savages!
      • (Score: 3, Interesting) by frojack on Tuesday February 20 2018, @10:34PM

        by frojack (1554) on Tuesday February 20 2018, @10:34PM (#640902) Journal

        An hour long fire is pretty normal for fires in large buildings. It takes half that long just to get fire fighters to the scene, and up the stairs. Yet most of these buildings are saved. Even if one apartment is totally gutted by fire.

        And maybe wood buildings would be saved as well. But the water used for firefighting also extracts a toll on wood, but not so much concrete and steel.
        I'd fear water more than fire. Fire you put out and replace parts. Water gets everywhere, and you have rot showing up in hidden places for 20 years.

        --
        No, you are mistaken. I've always had this sig.
      • (Score: 2) by fliptop on Wednesday February 21 2018, @04:50AM

        by fliptop (1666) on Wednesday February 21 2018, @04:50AM (#641041) Journal

        You do realise that a lot of fire doors are made out of wood, right?

        Yes and no. The outer veneer may be wood, but the inner layers are typically made of gypsum.

        --
        Our Constitution was made only for a moral and religious people. It is wholly inadequate to the government of any other.
    • (Score: 4, Funny) by DannyB on Tuesday February 20 2018, @11:09PM (1 child)

      by DannyB (5839) Subscriber Badge on Tuesday February 20 2018, @11:09PM (#640922) Journal

      So here is a distraction while you wait for the firefighters.

      In each of your Google, Amazon and Apple "TO DO" lists, you create a single TO DO item that reads like:

      "I don't know what it is, but I know how to find out. ${OTHER-THING} what is on my TO DO list?"

      Then to get the dominoes falling you say:

      Alexa, what is on my to do list?

      And here is the endless loop you get:

      ALEXA SAYS: There is 1 item on your to do list. I don't know what it is, but I know how to find out. Hey Google, what is on my TO DO list?

      GOOGLE SAYS: There is 1 item on your to do list. I don't know what it is, but I know how to find out. Siri, what is on my TO DO list?

      SIRI SAYS: There is 1 item on your to do list. I don't know what it is, but I know how to find out. Alexa, what is on my TO DO list?

      ALEXA SAYS: There is 1 item on your to do list. I don't know what it is, but I know how to find out. Hey Google, what is on my TO DO list?

      GOOGLE SAYS: There is 1 item on your to do list. I don't know what it is, but I know how to find out. Siri, what is on my TO DO list?

      SIRI SAYS: There is 1 item on your to do list. I don't know what it is, but I know how to find out. Alexa, what is on my TO DO list?

      etc . . .

      It will keep you entertained for the rest of your life!

      --
      When trying to solve a problem don't ask who suffers from the problem, ask who profits from the problem.
      • (Score: 4, Touché) by insanumingenium on Tuesday February 20 2018, @11:11PM

        by insanumingenium (4824) on Tuesday February 20 2018, @11:11PM (#640923) Journal

        All you are missing is some way of keeping state so that after 10K iterations Alexa can turn on your "hall lamp" starting a fire long after you left town.

  • (Score: 4, Informative) by frojack on Tuesday February 20 2018, @10:23PM (3 children)

    by frojack (1554) on Tuesday February 20 2018, @10:23PM (#640897) Journal

    And greenery would extend throughout the entire complex, creating a vertical forest where humans and wildlife can flourish

    Un-necessary green washing. We could do that with steel and concrete, but its seldom cost effective, or even all that desirable. Nothing about wood makes this easier.

    Wood has some structural advantages over steel. In a fire, wood will give adequate warning of collapse, (cracking sounds and actual fire), whereas steel will simply collapse with no warning when the temperature reaches its ductile point. Firemen can and do go into a wood building on fire, but are very cautious about entering steel frame buildings.

    Wood has the highest tensile strength per unit of weight or cross section of any building material known to man. (Not that our buildings are designed to take advantage of tensile strength. Few are, other than some Japanese designs).

    The problems glossed over in the Treehugger article is that the whole thing would be composed of glue-lams, and its the "lam" part that has historically been problematic. Then there is the exposure of wood to the elements, (not to mention all those cute animals and insects they want to invite inside). And even a small fire, triggering sprinklers could cause water damage to exposed wood.

    --
    No, you are mistaken. I've always had this sig.
    • (Score: 0) by Anonymous Coward on Wednesday February 21 2018, @12:43AM

      by Anonymous Coward on Wednesday February 21 2018, @12:43AM (#640960)

      Well, the site is called Tree Hugger.

      -- OriginalOwner_ [soylentnews.org]

    • (Score: 3, Funny) by linkdude64 on Wednesday February 21 2018, @02:04AM

      by linkdude64 (5482) on Wednesday February 21 2018, @02:04AM (#640989)

      I for one welcome our new cute animal and insect officemates.

    • (Score: 2) by mhajicek on Wednesday February 21 2018, @02:14AM

      by mhajicek (51) on Wednesday February 21 2018, @02:14AM (#640991)

      Wood does not have the highest tensile strength by weight or by cross section. Perhaps you meant to phrase that differently?

      --
      The spacelike surfaces of time foliations can have a cusp at the surface of discontinuity. - P. Hajicek
  • (Score: 5, Funny) by DannyB on Tuesday February 20 2018, @11:01PM (6 children)

    by DannyB (5839) Subscriber Badge on Tuesday February 20 2018, @11:01PM (#640919) Journal

    In the US we make buildings out of wood. They last 100 years. Longer if very well maintained.

    In the UK they make buildings out of stone. They last 1000 years. Longer if ignored.

    --
    When trying to solve a problem don't ask who suffers from the problem, ask who profits from the problem.
    • (Score: 4, Insightful) by frojack on Tuesday February 20 2018, @11:17PM (2 children)

      by frojack (1554) on Tuesday February 20 2018, @11:17PM (#640925) Journal

      And they all end up ignored, or deeded to the national trust, having bankrupted countless generation since they were built. Entire family fortunes have been sunk into keeping these things standing.

      --
      No, you are mistaken. I've always had this sig.
      • (Score: 3, Informative) by Nuke on Tuesday February 20 2018, @11:52PM

        by Nuke (3162) on Tuesday February 20 2018, @11:52PM (#640936)

        A stone or brick building is not entirely of stone or brick. It usually has lots of wood in it - floors, roof beams, windows, It is those wood bits that need 95% of the maintenance.

        There are a few deserted villages in the UK, some very old indeed. What is left of them is the stone bits; the wood has practically gone. I live in the damp hills of Wales and struggle to keep the wood going on my 80 (only) year old house; the brick part is no problem.

      • (Score: 4, Informative) by PiMuNu on Wednesday February 21 2018, @12:49PM

        by PiMuNu (3823) on Wednesday February 21 2018, @12:49PM (#641141)

        I thought it is not the houses that have bankrupted countless generations, but inheritance tax. Inheritance tax is a Good Thing!

    • (Score: 0) by Anonymous Coward on Tuesday February 20 2018, @11:31PM

      by Anonymous Coward on Tuesday February 20 2018, @11:31PM (#640927)

      UK isn't on The Ring of Fire. [google.com]
      Japan is. (Volcanism and earthquakes.)

      Like realtors say: Location. Location. Location.

      -- OriginalOwner_ [soylentnews.org]

    • (Score: 2) by c0lo on Wednesday February 21 2018, @12:00AM (1 child)

      by c0lo (156) Subscriber Badge on Wednesday February 21 2018, @12:00AM (#640942) Journal

      In the UK they make made buildings out of stone. They last 1000 years. Longer if ignored.

      In an effort to harmonize with their US role models, the new British construction code for public housing indicates they are to be build out of concrete then clad in highly flammable insulation [wikipedia.org].
      I reckon the pragmatical reason behind this choice is that a cut to social services can be implemented swiftly and with visible results.

      (grin)

      --
      https://www.youtube.com/watch?v=aoFiw2jMy-0 https://soylentnews.org/~MichaelDavidCrawford
      • (Score: 3, Informative) by MostCynical on Wednesday February 21 2018, @01:30AM

        by MostCynical (2589) on Wednesday February 21 2018, @01:30AM (#640977) Journal

        So we need to cut put the middleman: make public housing out of recycled social services recipients; anyone found guilty of rorting the system is turned into building materials.
        Otherwise, just bring back the sacrificial wickerman.

        As for the wood: many of the ancient buildings only fell apart when people started using the timber for their fires, or the rooves were removed (decay, or the effects of the roof tax https://en.oxforddictionaries.com/definition/roof_tax [oxforddictionaries.com] or window tax http://www.historyhouse.co.uk/articles/window_tax.html [historyhouse.co.uk] )

        --
        "I guess once you start doubting, there's no end to it." -Batou, Ghost in the Shell: Stand Alone Complex
  • (Score: 3, Interesting) by captain normal on Wednesday February 21 2018, @12:41AM (2 children)

    by captain normal (2205) on Wednesday February 21 2018, @12:41AM (#640959)

    One bit I don't get: "... with a shrinking population and a dislike of immigration, there are not a lot of houses being built. So they are pivoting to plyscrapers..."?
    Not the "plyscrapers" part, the "shrinking population" part. Is the population of Japan shrinking unlike the population of virtually every other country on the planet? If so why do they need massive high rise buildings.Or is it maybe there are just too many architectural firms looking to build monuments.

    --
    Everyone is entitled to his own opinion, but not to his own facts"- --Daniel Patrick Moynihan--
    • (Score: 3, Funny) by Anonymous Coward on Wednesday February 21 2018, @01:01AM

      by Anonymous Coward on Wednesday February 21 2018, @01:01AM (#640964)

      Yes, the Japanese population is shrinking. Unfortunately most young men prefer tentacle porn to actual women, even though Japanese women are very attractive, so the result is a low birth rate. This is exacerbated by frequent Godzilla attacks.

    • (Score: 1, Insightful) by Anonymous Coward on Wednesday February 21 2018, @02:21AM

      by Anonymous Coward on Wednesday February 21 2018, @02:21AM (#640994)

      People who live in conditions such that they aren't sure if their children will live until the parents are dead tend to have -more- children to extend the odds.

      In some cultures, lots of children are seen as a sign of wealth.

      Japan has a universal healthcare system, so the first condition has largely gone away for them.
      It seems that the current generation of Japanese people gives little credence to the second notion.
      So, geometric expansion of their population, recognized as a stupid goal, has been abandoned.

      Add in bots, unemployment numbers, and Capitalism (stagnant wages; globalism; exported jobs) to complete the picture.

      -- OriginalOwner_ [soylentnews.org]

  • (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

    --
    Yes I Have No Bananas. [gofundme.com]
    • (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.

  • (Score: 0) by Anonymous Coward on Wednesday February 21 2018, @07:12AM

    by Anonymous Coward on Wednesday February 21 2018, @07:12AM (#641065)

    Since it's basically "engineered wood products", it's basically plastic. And definitely not something I would like to be in while there is any remote posibility of anything on fire in there.

  • (Score: 2) by pkrasimirov on Wednesday February 21 2018, @03:35PM

    by pkrasimirov (3358) Subscriber Badge on Wednesday February 21 2018, @03:35PM (#641184)

    Yay, Teldrassil was planted!

    Looking forward to Civ VII DLC 14 where this thing will be buildable.

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