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Megatalls Discussions of projects under construction at least 600m/2,000 ft tall.



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Old July 20th, 2008, 01:35 PM   #8541
Buyckske Ruben
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Stunning pics end work for updating the process!



The tower is now rapidly to final stage especially the cladding.
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Old July 20th, 2008, 10:39 PM   #8542
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Originally Posted by redbaron_012 View Post
I read in todays 'Melbourne Herald-Sun' Newspaper that Burj Dubai has no lift that goes all the way to the top....I don't mean literal top but to highest lift core floor ? Is this a first ? I know it is common for very tall skyscrapers to have lifts servicing segments of a building with express elevators to sky lobbies yet most I am aware of have at least one going through to the highest floor. Imagine a cable that long would make this difficult in a building this high.
The John Hancock Center in Chicago (100 stories) doesn't have a single elevator that goes all the way from top to bottom. Even the freight operations have to transfer at 44 and 98.

Looking historically, it's not unusual for skyscrapers to not have elevators that go all the way to the top. The Carew Tower in Cincinnati (50 stories, built from 1929-1931) requires you to walk up stairs to access the last couple of floors.
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Old July 21st, 2008, 02:16 AM   #8543
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Originally Posted by Assemblage23 View Post
How does the operator get into the crane? Is there an external ladder? If so, that must be a terrifiying experience: climbing a structure that's attached to the edge of the world's tallest building, with a LOT of wind blowing.
if you have a close look, there is a bridge connection just below the red section of crane. the crane operator would simply catch the external work lift which is currently at lev162 or main roof level. then walk up to lev172 which the bridge connection is at. thewn walk up internal ladder in crane tower shaft up to cabin. gotta be fit.
latest diagram
the steel section is now HALF WAY UP!!! 90m/300ft tall above concrete. ANOTHER 90M TO GO!!
the pinnacle will rise through the next 90m and rises 50m above tier27.

image hosted on flickr



image hosted on flickr
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Last edited by CULWULLA; July 21st, 2008 at 02:25 AM.
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Old July 21st, 2008, 02:24 AM   #8544
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great diagram CULWULLA! In my opinion we should name the thread with 206 floors and not only the 162 floors that are inhabitable, just because this is the total number flloors and it should count...
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Old July 21st, 2008, 02:33 AM   #8545
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^yes, even architect Adrian Smith refers to Burj Dubai with 200 floors.
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Old July 21st, 2008, 03:20 AM   #8546
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how tall is the steel now?
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Old July 21st, 2008, 03:27 AM   #8547
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^trick question?
see diagram. 675m
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Old July 21st, 2008, 04:44 AM   #8548
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Quote:
Originally Posted by Shahid View Post
how tall is the steel now?
90m
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Old July 21st, 2008, 06:22 AM   #8549
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is not easy in one country without a big steel industry ,.., that means the people how work in the construccion dont have a lot of experience,. building whit steel ,.

xD
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Old July 21st, 2008, 08:31 AM   #8550
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No, that's nonsense. Progress is slow because they are lifting steel up 2000+ feet under high wind conditions, piecing it together one beam at a time.
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Old July 21st, 2008, 02:24 PM   #8551
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They will start the spire soon?
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Old July 21st, 2008, 02:48 PM   #8552
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Don't want to be an old conservative complaining layman , but doesn't anyone have the fear that this tower will collapse with a tiny accident? When, for example, a helicopter hits in at 80 meters from the top, what will happen? Any idea? Are their simulations of these situations? Just looking at the design, I can hardly believe it would survive.
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Old July 21st, 2008, 03:00 PM   #8553
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Originally Posted by storyteller View Post
Don't want to be an old conservative complaining layman , but doesn't anyone have the fear that this tower will collapse with a tiny accident? When, for example, a helicopter hits in at 80 meters from the top, what will happen? Any idea? Are their simulations of these situations? Just looking at the design, I can hardly believe it would survive.

It would not collapse even if the airbus plane hits it.
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Old July 21st, 2008, 04:26 PM   #8554
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Quote:
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It would not collapse even if the airbus plane hits it.
What, the a380? Do you honestly think that if a plane of that size hit even the bottom of the burj, that it would not collapse? No building in the world is THAT structurally resistant except for nuclear reactors!
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Old July 21st, 2008, 05:22 PM   #8555
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agree,though the Burj Dubai is a strong building i don't think it could withstand an A380
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Old July 21st, 2008, 05:42 PM   #8556
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The impact of an A380 in the lower section of the BD is not the problem since the plane is made out of aluminum and the tower out of concrete. The concrete will probably severely damaged but the plane isn't strong enough to cause a collapse of the tower. The biggest problem will be the heat of the burning fuel. Although concrete behaves very good during a fire the fire shouldn't burn too long. The heat of the fire will evaporate the water in the concrete and makes is slowly less and less strong. If the fire is extinguished within a few hours an impact wouldn't cause a collapse.
If the plane hits the top section of the building it will probably cause a partial collapse of the top section of the building.
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Old July 21st, 2008, 06:06 PM   #8557
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Why do we always have this senseless "plane crashes into Burj Dubai" discussion?

I donīt get the point why we must discuss it a trillion times....

ON TOPIC: the top looks good now, the more steel they add the more you can see the slenderness this tower should have. Am really curious how it will turn out when its topped out....Adrian Smith did a great job with this building...congrats
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Old July 21st, 2008, 06:27 PM   #8558
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July 19th by RNTheory, Flickr:

highres: http://farm4.static.flickr.com/3041/...11a40f0d_o.jpg
[IMG]http://i38.************/1zexsnd.jpg[/IMG]
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Old July 21st, 2008, 06:38 PM   #8559
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Quote:
Originally Posted by germantower View Post
Why do we always have this senseless "plane crashes into Burj Dubai" discussion?

I donīt get the point why we must discuss it a trillion times....

ON TOPIC: the top looks good now, the more steel they add the more you can see the slenderness this tower should have. Am really curious how it will turn out when its topped out....Adrian Smith did a great job with this building...congrats
Well spoken Germantower, just a case of the school holidays again.
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Old July 21st, 2008, 07:41 PM   #8560
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Quote:
Originally Posted by Jude12 View Post
They will start the spire soon?
http://www.youtube.com/watch?v=BH19J8ZF4Bk

This video shows that after 128 metres of steel floors are done they'll begin to start the spire work. Which means that it will start after tier 22 begun. Somewhere around 715 metres of height is constructed, the spire work will begin.
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adrian smith, burj dubai, burj khalifa, downtown, dubai, dubai tower, emaar, megatall, middle east, rascacielos, sarajevo construction, skyscraper, spire, tallest, uae

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