I do not own the pictures so we need to share the click below in Japanese of the Wind Tunnel
Recently, coming back to Italy I was reorganizing my experience to present myself on the market and watching a TV program I remembered a project that was left out of my portfolio, almost forgotten.
So I put inside because it makes a visible impact.
Despite that, and the success that may or may not produce it gives me a hint to dive into one little detail that speaks loud.
The company is a big one, Taisei Corporation, on of the 5 bones of the Construction Industry of the Japan, not only as a State, nation, population culture, but also Japan as Asian Leader in Technology and World leader in industry, that what Taisei means. That is why this post is somehow relevant.
The 5 Companies, largely subsided by public biddings, had to abandon the use of wood in their project for almost a century. Wood was banished by Law from any Public building in Japan forever, and I suspect this happened at least from WWII end or even before that maybe after the Great Kanto earthquake of 1923. Steel and concrete overall were ruling, stones were the outfit with obviously glass, perhaps if one can have a balance of all these manifactured built and one can add the components of the overall to make a sum, those 4 materials will compose the 90% of the Weight.
The remarkable project that open the post is coming to this “sustainable wave era” where wood has been surfaced. Even if it is not a public building but a private Facility, the same building, projected 10 years before would probably not even considered wood among the realm of possibilities. CLT panels are the solution adopted . The explanation in Japanese says that domestic cedar wood has been used. It explains the reason for horizontal forces and so on (if you try to play the video it won’t work), but we know for sure that in reality the steel used at the bottom, floor level is unnecessary. It could have been done all in wood and I suspect the bolt suspended fixed by steel, could have been resolved in a different way.
Why they did not consider it? The answer is in the History above. They gone too far and now they cannot see anymore what they have too close.
The internal Hell machine that push the wind is another matter….