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



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Old November 23rd, 2007, 10:03 PM   #1441
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they already inserted the steel as shown in imre's last pics and the removed the formwork because that is used for pouring the concrete, they will only need scafolding for the steel
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Old November 23rd, 2007, 10:04 PM   #1442
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how big will the steel sections be ? will they be in 20,30,40foot lengths, i would like to know.
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Old November 24th, 2007, 12:22 AM   #1443
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Some great pictures from flickr:







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Old November 24th, 2007, 12:25 AM   #1444
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this is THe FIRST TIMe I See the Burj Without THe FRAMe WORKS... FROM DOKAAAAAAAAAAA OH GOD BUT ..? when will they start the work with the steal ??????????,
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Old November 24th, 2007, 12:27 AM   #1445
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Quote:
Originally Posted by the sock View Post
how big will the steel sections be ? will they be in 20,30,40foot lengths, i would like to know.
I know that they are 2 meters in diameter. Will ask for the length ...
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Old November 24th, 2007, 01:04 AM   #1446
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Quote:
Originally Posted by interarchi View Post
this is THe FIRST TIMe I See the Burj Without THe FRAMe WORKS...
, of course it is. because it is the first time the Burj Dubai is without formwork
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Old November 24th, 2007, 01:39 AM   #1447
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Quote:
Originally Posted by malec View Post
Some great pictures from flickr:







AWESOME PIC !!!!!!
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Old November 24th, 2007, 01:57 AM   #1448
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Quote:
Originally Posted by AltinD View Post
I know that they are 2 meters in diameter. Will ask for the length ...
At 2 meters diameter I would say that they are at least 10m long. It would look strange for so wide pipe to be shorter
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Old November 24th, 2007, 03:54 AM   #1449
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Guys, concrete works on 5th mechanical floor will last for a weeks!
So I'm not sure when would steel work start...
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Old November 24th, 2007, 10:42 AM   #1450
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think they'll start before the wing is ready
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Old November 24th, 2007, 01:32 PM   #1451
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love the fog pictures. best pics so far.
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Old November 24th, 2007, 03:35 PM   #1452
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There is an interesting article on Burj Dubai in the British civil engineering magazine New Civil Engineer. It says that the drawings hanging up in site offices during their tour last week show the final height of the tower as 808m.

The in-situ concreting works on the structural core were completed last week at a height of 601m, making it already the tallest building on the planet. (The present tallest man-made structure is the KVLY/KTHI television mast in North Dakota, USA, which is a guyed mast with a height of 628.8m.)

One of the main problems on site has been the massive variation in temperature between day and night, which coupled with having a desert climate next to the sea has resulted in violent sandstorms with wind speeds of over 100kph.

Apparently, despite the poor working conditions the mainly migrant labour force have had to endure, the safety record has been really good with only three lost time injuries in the 29.3 million manhours worked to date.

The main design problem was the need to strengthen some of the lower floors which had been designed as prestressed concrete but constructed as reinforced concrete. This was done using carbon fibre reinforcement and steel I-beams on floors five to fifteen. (This news leaked out to the press, Emaar denied at the time that there were any strength issues).

Progress on cladding has been really good considering that the original cladding contractor Schmidlin went bust at the start of the contract. Thirteen months was lost before Far East Aluminium was signed up but they have succeeded in getting back on track. The cladding is manufactured in China and comes in pieces to be assembled on site with local glass. In total, 100 panels a day are being made in the factory, assembled and installed on site. The panels are fixed using 25,000 Halfen cast-in fixings and slot together without any need for extra sealant.

As the building is curved, cladding tolerances are critical as there is no opportunity to make up tolerances at the corners.

Cladding is a major critical path activity as, only when it has been installed can the space be air-conditioned and work commence on the internal fit-out.

The building has been designed to evacuate 35,000 people (more than twice its expected occupancy). Evacuation is down stairs and as it is a long walk down from the 160th floor, pressurised air-conditioned refuges are installed every 25 floors for evacuees to rest or await rescue. US fire containment standards are being used with special firestops to plug the gaps between floor slabs and cladding to prevent fires from leaping from one floor to the next.
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Old November 24th, 2007, 04:07 PM   #1453
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WOW, thats all I can say, that thing is fuc*ing tall! lol.

Last edited by wolvolad; November 24th, 2007 at 04:25 PM.
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Old November 24th, 2007, 04:15 PM   #1454
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pic from the 156th floor:

[IMG]http://i19.************/6nshdnl.jpg[/IMG]
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Old November 24th, 2007, 05:28 PM   #1455
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breathtaking picture ZZ thx for sharing with us.....
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Old November 24th, 2007, 05:37 PM   #1456
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I wonder if that mad french guy will ever try to climb burj dubai
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Old November 24th, 2007, 05:44 PM   #1457
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I'm sure that he will climb BD when its ready......if he would know....of BD.
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Old November 24th, 2007, 06:04 PM   #1458
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Good article Martin S .. thanks for posting.
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Old November 24th, 2007, 06:42 PM   #1459
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Quote:
Originally Posted by ZZ-II View Post
pic from the 156th floor:

[IMG]http://i19.************/6nshdnl.jpg[/IMG]
amazing!
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Old November 24th, 2007, 06:53 PM   #1460
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Some images taken from around the same spot since May this year until yesterday, showing progress of the top level wings.

24th May 2007


27th July 2007


10th August 2007


14th September 2007


21st September 2007


28th September 2007


5th October 2007


12th October 2007


19th October 2007


26th October 2007


2nd November 2007


9th November 2007

16th November 2007


23rd November 2007
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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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