Michael Green: Why we should build wooden skyscrapers 

JuIiana Remor Amazing. I will love to see that vision within the near future. Goodluck to you.

Maybe you should search for Erwin Thoma and Austrian ranger now have a company for wooden buildings

Sure! Also large wooden beams are able to retain their strength even longer than steel in high temperatures. Steel will eventually soften and start to bend, while the wooden beam is still just a bit charred on the surface. So at least the house doesn't collapse as quickly.

Isnt bamboo wood?

It's a very fast growing wood substance making it the perfect tree substitute.

Technically bamboo is a type of grass, however it has many irregularities and cannot be used on a scale as structural timber. But small structures can be made of bamboo, the material also can be used as a reinforcement substitute in concrete

@@L0opyProductions I've seen massive structures made with bamboo.

@@orishejuukuedojor2736 It's a type of grass, actually.

In addition, warm/hot climate region housing often uses more energy than those of cold climate.

Whats that mate? The creepy crawly things that want us all dead?

That's not a problem. I studied wood structures in college (civil engineering) and I'm currently doing my graduation thesis about laminated wooden structures, so let me tell you that for every problem you imagen this could have, there's a treatment on the factory for it.

+Rodri Btz Such as?

what about hurricanes?

Rodri Btz oh, huh. Laminated wood, hm.

+JayFolipurba As a person who studied, does, and loves Japanese woodworking going back to the late 70s, I have to say that the Japanese tradition is not that different from the western one. In the west we made plenty of framed buildings or furniture without nails or glue, using just joinery. The japanese avoid the diagonal brace, perhaps due to seizmic needs, but it makes their structures unfathomably inefficient. By the way, the Japanese, just like us use nails extensively, that just isn't the part you see when making shoji, or timber frames, any more than you would see that in western structures of a similar type. Western frame and panel doors are sometimes held together with just wedges, as an example. But the Japanese still need to hold shingles on a roof, and the carpenter's tool boxes were nailed together. They saved the fancy joinery for the paid work.

here, i dare to squeeze in Korean architecture as well. historically speaking yes, many woodworkings around the world in old times used joinery and wooden pegs. sometimes natural glue from boiled fish was used which expanded and contracted similar rate of wood. old korean architecture made separated column base parts so you can remove and replace them whenever there is any damage without having the entire building collapsing. and the oldest method of heating, ondol, is now one of the most popular, efficient, and healthiest methods around the world. there are so many things we simply cannot ignore but lots of people wont look into it thinking its 'outdated.' why cant we amplify its core with modern technology?

LOL when you realized most were rebuild

Check out Brock Commons or the Earth Sciences Building at UBC Vancouver, that might answer some of your questions about added structural integrity :)

Thing is joining wood and steel is difficult. A joinery is only as strong as the weakest material. A joinery of steel and wood would be weak but wood and wood joinery is strong. It's like to like material when joining different structural members are needed.

The comparisons are very interesting between wood, steel, and concrete. Concrete's carbon contribution is inherent when it cures. But steel's contribution is primarily based on energy production (that is, a lot of electricity is used to produce structural steel). As we move increasingly to renewable energy sources, steel's CO2 production diminishes. In addition, when looking at the wood numbers, the wood industry tends to skip the environmental impact of demolishing a wood building (some wood conceivably could be reused but most of it is either incinerated or landfill -- both of which have a bad CO2 impact. The wood industry also conveniently ignores the wood waste at the point of harvest -- this can represent a significant increase in wood's CO2 impact. There are a lot of other issues that also should be considered. For a more in-depth discussion, visit www.aisc.org/discover and download the whitepaper.

Hey which uni did you take this course I was hoping to a apply for a course like this if possible in the summer would really appreciate a recommendation. thanks in advance viewers!

lam

Saumitra Shrivastava concrete produces more Co2 in its production. Trees lock co2 from the air into the wood

I was confused as well. What he's saying our two options are use wood, and soak up 3100 tonnes of CO2 or use concrete and emit 1200. So a +1200 vs -3100. The gap between those two numbers (not the sum) is 4300. So the difference between the choices is a 4300 tonne (4,300,000 kilograms) decision. The gap between the possible outcomes is 4300 tonnes of CO2.

Companies that maintain these buildings will have a constant flow of cash to renew the buildings

Durability as the same, cost is £797/m2 for timber and £799/m2 for steel frame.

@@lindamizun7805 woods are not weather resistant. My house's rooftop made out of wood is now falling apart. 10 billions people will roam this planet. How many trees do we have to cut down then replant to sustain the constructions ???

Well, most houses in Finland are built out of wood and we have winters of -20 celcius and summers of +20 celcius. There are also a lot of new wooden apartment buildings cropping up all around Finland as well and our housing code is super strict. Actually if cities had more wooden buildings they would be cooler during summers since wood doesn't soak in the heat unlike concrete buildings.

Well yes, wooden buildings have been around for centuries. I am thinking more if his proposed concept would work in conditions like this. Because a small hut acts different from an apartment building and again with an sky scraper. I like this concept and that it offers so many possibilities.But still it would be interesting they built something like this in Finland, how it would react to the elements nature trows at it. Well then we can start the argument on - this works as better housing than what we used to have.