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Old January 28th, 2010, 04:20 PM   #2981
no_gods
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Quote:
Originally Posted by Viperfreak2 View Post
Looking at those fantastic pictures from Momo, it JUST CAN'T be only 1/2 it's final height! It is SO much taller than anything around it.
+1
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Old January 28th, 2010, 05:59 PM   #2982
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Quote:
Originally Posted by Taller & Taller View Post
According to CTBUH, TST is a steel structure; not concrete, nor composite (concrete & steel). So, concrete shouldn't have any primary structural function here (letting foundation apart):
Of course it should be considered a steel structure, but on the official on site construction notice board with all the construction data it clearly says that's it's constructed with Steel, Steel encased in reinforced concrete and reinforced concrete.


@ D.D. and NihonKitty

The core doesn't have a mass damper, instead the shape of outer steel frame of the tower protects the core in an earthquake or during a typhoon and the massive but smart foundation protects the whole tower from falling down.

This gives some info on the construction including the measures that are taken to make it withstand earthquakes (in Japanese):
http://www.skytree-obayashi.com/artifice/index.html
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Old January 28th, 2010, 06:29 PM   #2983
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thanks for the link, is pretty well informative.
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Old January 28th, 2010, 09:22 PM   #2984
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Quote:
やった!!この調子だと5月に旅行で東京に行くときにスカイツリーが300mを超える
僕も東京にいきたいだけどお金じゃあないね。。スカイツリーの速い建設はすばらしいよね。。
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Old January 29th, 2010, 12:23 AM   #2985
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Originally Posted by CultureOfCongestion View Post
I know you didn't ask to me, but the answer is: Mori Tower (Roppongi Hills)

As usual good progress, can't wait it reach the 300 meters!
Yeah, that is! I've been on top of both towers on the same, rainy day, but I couldn't remember which one was.
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Old January 29th, 2010, 01:19 AM   #2986
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Quote:
Originally Posted by Momo1435 View Post
This gives some info on the construction including the measures that are taken to make it withstand earthquakes (in Japanese):
http://www.skytree-obayashi.com/artifice/index.html
おおきに!
Quote:
Originally Posted by NegaSado View Post
僕も東京にいきたいだけどお金じゃあないね。。スカイツリーの速い建設はすばらしいよね。。
Save save and go! Just eat rice everyday :p
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Old January 29th, 2010, 07:21 AM   #2987
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01/29 blog update

A new level, it should be over 290m right now.

[IMG]http://i48.************/svqper.jpg[/IMG]
ameblo.jp/therapind/

[IMG]http://i48.************/2uppwn7.jpg[/IMG]
tokyo-sky-tree.seesaa.net/
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Old January 29th, 2010, 07:31 AM   #2988
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wow, that thing is huge!!! is it a building or is it just a TV tower???
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Old January 29th, 2010, 07:53 AM   #2989
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Quote:
Originally Posted by elgoyo View Post
wow, that thing is huge!!! is it a building or is it just a TV tower???
It's a broadcasting tower.

Quote:
What defines a building (as opposed to a tower)? A "building" is considered to be a structure that is designed for residential, business, or manufacturing purposes.
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Old January 29th, 2010, 09:51 AM   #2990
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Everytime I check back on this I think to myself "Damn!" it's going up so fast
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Old January 29th, 2010, 11:12 AM   #2991
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With the cranes it's definitely the tallest structure in Tokyo now.
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Old January 29th, 2010, 01:36 PM   #2992
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what about it's height now?
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Old January 29th, 2010, 02:42 PM   #2993
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Quote:
Originally Posted by NihonKitty View Post
Does anyone know how the construction makes it safe in earthquakes? I want to understand how you can make a tower like this safe.
Well, at first it's triangle floor plan shape gives it the best geometrical stability, for details about the foundations take at look at Momo's link, the main probleme was (I suppose) the soil qualitity of the area wich is worst than in Yamanote area.
Plus the structure design is very clear (wich is an important point for engineers) you can easily see where the loads are distributed from the collumns and bracing parts to the ground.
Also each part that develops in the center to surround the core act like floors in a conventional building (renforcing the structure against horizontal loads).
The main point is that it is built in a very stiff way (like all the highrises in Japan, it's most expensive but the damages will be significantly reduce in case of a big earthquake) just take a look at pictures of the steel column parts prepared in factory (many pages before) the thickness of steel is just impressive, that's why I'm sure the stiffness of the whole structure is very important, in case of an earthquake it's reaction would be vibrating instead of balancing.
And concerning the core, I'm not sure but I don't think it has any structural purpose, it is freestanding but need the surrounding structure to resist horizontal loads (like wind)

Hope it was clear and accurate enough.

ps: I'm not an engineer but Architecture student, and I do have some lectures conducted by Engineering professors who are researching on earthquake issues.
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Old January 29th, 2010, 02:44 PM   #2994
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Can see it from half way up Roppongi Hills, it's some sight to see Tokyo Tower and Shin Tower from there. The cranes have been elevated, they look precariously perched, the thin tube doesn't look like it could carry all that weight, amazing.
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Old January 29th, 2010, 03:03 PM   #2995
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Quote:
Originally Posted by Momo1435 View Post
Of course it should be considered a steel structure, but on the official on site construction notice board with all the construction data it clearly says that's it's constructed with Steel, Steel encased in reinforced concrete and reinforced concrete.
Ok, thanks!

Now, do you know where are the steel encased in reinforced concrete elements of the tower?

The core looks to be all steel, like the lattice structure of the outer part of the tower:

http://podcast.sankei.co.jp/panorama...1122sky-a.html
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Old January 29th, 2010, 09:32 PM   #2996
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It's already above the smog.
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Old January 29th, 2010, 09:43 PM   #2997
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Quote:
Originally Posted by Momo1435
This gives some info on the construction including the measures that are taken to make it withstand earthquakes (in Japanese):
http://www.skytree-obayashi.com/artifice/index.html
When this link is opened click on the triangle in the circle (top left hand box): it shows how the tower is constructed.
The antenna will be put together inside the core at the base and then hoisted/jacked up the full height of the shaft until it emerges out of the top.
The technique is similar in a way to how the Burj Khalifa spire was erected.
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Old January 29th, 2010, 10:48 PM   #2998
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Huge!
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Old January 29th, 2010, 10:56 PM   #2999
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Originally Posted by Imperfect Ending View Post
Everytime I check back on this I think to myself "Damn!" it's going up so fast
I do the same thing.
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Old January 29th, 2010, 11:08 PM   #3000
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Originally Posted by NihonKitty View Post
おおきに!


Save save and go! Just eat rice everyday :p
What do you think Im doing?!
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