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Old October 14th, 2008, 02:15 AM   #10881
Geordie Ahmed
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Quote:
Originally Posted by (fabrizio) View Post
they'll rise the crane soon, won't they?

another question: do they take materials up with that crane from ground level? it's gonna take a while, isn't it? does anybody have a photo of the proceedings? thanks!
I would like to know the answer to this aswell

Thanks
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Old October 14th, 2008, 02:25 AM   #10882
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diagram update
hope its accurate. fury/otr-let me know if i need to tweek.
cheers
image hosted on flickr
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Old October 14th, 2008, 03:29 AM   #10883
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I think that they are going to hold back on raising the Spire. Once they raise the Spire everyone will know the final height, I expect they will not let the Spire rise up until December 31st, or sometime in 2009.
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Old October 14th, 2008, 06:24 AM   #10884
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the steel frame should progress up to tier24 failry rapidly.above this are small triangular attachments that wrap around spire. they dont have internal acess, so they will be put up quickly also.then i think segments of pinncle will be raised up. they may even wait until a certain day to lift the last segment. definatly within next couple of months.
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Old October 14th, 2008, 06:51 AM   #10885
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Hi all.

Diagram looks good Cul - you got some mad skills man.

CrazyDave - I think they will start the first stage of jacking soon. Once they have the top of the pinnacle welded on up there they will start jacking right away.

They don't need to raise the crane any higher on its mast. It is high enough for the jacking and to finish the structure. We shall see.

The top crane does lift from the podium (ground). It takes approx 3 1/2 minutes. The crane can hoist over 5 tons at 221 m. / min.

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Old October 14th, 2008, 07:17 AM   #10886
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Originally Posted by Old Town Resident View Post
Welcome back Cul, Im on mine now and looking forward to updates.

Get your act together Dennis we had a deal.
Haha, you're right Lucky enough my mate took some pictures yesterday and so did I again this morning..

Yesterday:






Today:






No new steel, however it can't take long before something new happens at the top...
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Old October 14th, 2008, 07:19 AM   #10887
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Everyone talks about the rising of the mask pinnacle. But are they not going to helicopter the piece over and lower it from the sky? How can they left the pinnacle from a crane? I would think it would be too big and heavy that way.
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Old October 14th, 2008, 07:40 AM   #10888
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Hi Cul.

It will be interesting to see the jacking proceedure.

This is how I see it happening:

- The lifting equipment is at tier 21B - I think it will stay there and not be moved up to jack from a higher point.

- The top platform will be attached on the top of what we see sticking out before they start stage one of jacking - I can't see how they will get it up to the top after jacking without a helicopter and there has been no mention of one.

- They will jack approx. a tier worth then add to the bottom of what is jacked - then repeat for approx. 6 stages total.

- The small wings of tiers 24, 25, and 26 will be attached to the pinnacle as those tiers are at or near the top of tier 22 and jacked with the pinnacle pipe.

- When jacking is done the one tier 23 wing will be erected (and the rest of the second wing of tier 22 if they don't erect it before jacking).

- When jacking is done the base of the pinnacle pipe will be installed.

Do you see a different way the jacking can be done Cul ?

Anyone - thoughts, discussion ?

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Old October 14th, 2008, 07:47 AM   #10889
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I just think you're totally right Fury Very little to discuss I think. We're seeing this plans for more than a year or so and they're still following it strictly. But damn I want to see that jacking in person. I might give a try to visit BD when I have time and some guts. Just tell them that I'm an interested student and show that I don't have a parachute with me!
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Old October 14th, 2008, 09:25 AM   #10890
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thanks Dennis I haven't seen burj from those angles you took photos at for quite a while. I can see the real slenderness from that.

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This tower seems short now.
For me as well though and I hate it but have to get used to it.
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Old October 14th, 2008, 11:40 AM   #10891
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Sorry if I missed it, but what exactly is the purpose of those two cranes on the outside besides the one on top?
To lift things which are to big for the elevator?
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Old October 14th, 2008, 11:42 AM   #10892
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they are just decoration.
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Old October 14th, 2008, 12:41 PM   #10893
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Great work Culwulla, and nice update Dennis!
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Old October 14th, 2008, 02:08 PM   #10894
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The steel levels look so fragile in those pictures...
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Old October 14th, 2008, 03:39 PM   #10895
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Not more then a jumbo jet tail
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Old October 14th, 2008, 03:52 PM   #10896
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Hey, I got a question. Why haven't they updated the photo's on the BurjDubai.Com website anymore. The last ones are still from 2007. Not that I'm really interested in them, more than enough on this site. But are they just lazy, or don't they update the photo's anymore so the competitors don't see how they are building the top etc.
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Old October 14th, 2008, 04:00 PM   #10897
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fury-yeah probably right with spire construction.we will see soon enough.
dennis great shots.
for everyones info. the steel structure now reaches 134m above concrete!
or equal in height of worlds largest steel arch bridge-Sydney harbour,.


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Old October 14th, 2008, 04:40 PM   #10898
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Man, how impressive! It is because of these great floor heights that it doesn't seem 138 meters, but it is HUGE!
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Old October 14th, 2008, 04:40 PM   #10899
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Quote:
Originally Posted by Senju View Post
Everyone talks about the rising of the mask pinnacle. But are they not going to helicopter the piece over and lower it from the sky? How can they left the pinnacle from a crane? I would think it would be too big and heavy that way.
I can guarantee you a helicopter will not be used to lift sections of the spire into place. The main reason is that it's impossible to be extremely accurate while lowering equipment with a helicopter. This is due to wind currents as well as the inherent instability of helicopters. Whenever equipment is lifted using helicoptersl personnel must be on the roof with the equipment is being moved to to insure the equipment is located correct. Obviously there's no place to stand at the top of the spire. Also the sections of the spire are welded together without some fancy cage of some kind the exterior welding of the sections could not be accomplished.

Another point is the crane is probably capable of lifting considerably more weight than a helicopter can. Helicopters are only capable of lifting relatively light objects, that's why they're normally used for HVAC units etc. which which are relatively large in size but light in weight.
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Old October 14th, 2008, 05:59 PM   #10900
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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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