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



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Old September 8th, 2008, 07:37 AM   #9881
DennisS
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Great to see this new technique is being introduced here! It will be very, very interesting to follow for all contruction fanatics

From yesterday and ofcourse this morning:





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Old September 8th, 2008, 07:54 AM   #9882
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Very nice and exciting moment ! More than 700 m. and still 118 meters more to go...!
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Old September 8th, 2008, 08:38 AM   #9883
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Hi all.

Thanks for the updates Dennis.

Here is a plan from the old design. Looks like they are still going to use it.

[IMG]http://i34.************/9pnn9v.jpg[/IMG]

It will be interesting to see if they build up 4 more sections before they start actually jacking as some detail prints seem to point to.

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Old September 8th, 2008, 11:49 AM   #9884
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or will they first jack up the spire and build the last 4 sections afterwards?

btw.. did anyone of you guys, taking pictures of burj dubai, seen the spire around? would be easier to judge what they will do next
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Old September 8th, 2008, 12:07 PM   #9885
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Quote:
Originally Posted by FM 2258 View Post
Isn't that an old picture? I keep getting excited and then realize that it's an old picture.
Yes it is !! It's around 4-5 months old I think !!
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Old September 8th, 2008, 12:11 PM   #9886
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april 23rd is when I saved it.

Has spire jacking been used in any building before?
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Old September 8th, 2008, 12:16 PM   #9887
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Quote:
Originally Posted by Capn Jef View Post
april 23rd is when I saved it.

Has spire jacking been used in any building before?
yeah.. at the Taipei 101 for instance
it took them 2 weeks to lift the 80 metre-long spire up..

on youtube, there is a very interesting video about the construction of taipei 101..
canīt wait when we get to see something like this about the burj dubai as well..
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Old September 8th, 2008, 12:27 PM   #9888
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ehm.. guys..

just thinking of how tall now the steel-part of Burj Dubai is.. I mean..
maybe am i weird, but, will they first lift the spire up to the start of the steel section and then jack it up from there by using the 3 hydraulic mechanisms?

I donīt think it will be jacked up through the whole building.. it would take like months to get it up there this way..

and.. will it be a whole 120-metre part (just approximately, donīt know the actual length of that part) be jacked up as one piece or will it be built from 3 parts or so?
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Old September 8th, 2008, 02:33 PM   #9889
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Probably IMO the spire is already inside the core section already at a lower level, and would have been welded in sections.

Look back at some of the photos posted (plan view) and look at the triangular hole that is offset from the BD CL. Im sure Fury has that info from the floor plans?

Alternativly they will lift in small sections pretty soon and weld or bolt flanges as it is surrounded by adjoining structure.
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Old September 8th, 2008, 05:02 PM   #9890
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Quote:
Originally Posted by Old Town Resident View Post
Probably IMO the spire is already inside the core section already at a lower level, and would have been welded in sections.
Agreed.
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Old September 8th, 2008, 08:03 PM   #9891
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Quote:
Originally Posted by leetroy View Post
from the top
Stunning pic...

The view from this floor must be gorgeous
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Old September 8th, 2008, 08:08 PM   #9892
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The idea of jacking up the spire comes from the Chrysler Building, isn't it?
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Old September 8th, 2008, 08:09 PM   #9893
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the next most extreme thing could be Alain Robert climbing burj dubai all the way to the top up onto the tip of the spire and standing on it. Its possible as the spire is 1.5 metres thick, but is it flat top?
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Old September 8th, 2008, 08:54 PM   #9894
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That building is awesome. Has anyone here been inside of it?
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Old September 8th, 2008, 08:56 PM   #9895
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Quote:
Originally Posted by buildmilehightower View Post
the next most extreme thing could be Alain Robert climbing burj dubai all the way to the top up onto the tip of the spire and standing on it. Its possible as the spire is 1.5 metres thick, but is it flat top?
1.5 metres is very thick... I don't think so and already some basejumpers tried to get in the tower... but they all got arrested before they could jump. So I don't think Alain Robert makes a chance, even because of the fact that the cladding work of the tower is very seemless with almost no edges to hang on.
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Old September 8th, 2008, 09:21 PM   #9896
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Quote:
Originally Posted by buildmilehightower View Post
the next most extreme thing could be Alain Robert climbing burj dubai all the way to the top up onto the tip of the spire and standing on it. Its possible as the spire is 1.5 metres thick, but is it flat top?
nice idea but highly doubtful - the wind up there would be over 100mph on a good day.
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Old September 8th, 2008, 09:30 PM   #9897
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cmmn on people, obviously I was joking...

But the top of the spire will be a flat top right?
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Old September 8th, 2008, 09:33 PM   #9898
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Quote:
Originally Posted by buildmilehightower View Post
cmmn on people, obviously I was joking...

But the top of the spire will be a flat top right?
I'm not sure, but if you watch the renders, it will be indeed flat on top.
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Old September 8th, 2008, 09:33 PM   #9899
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Quote:
Originally Posted by deep sea buildings View Post
nice idea but highly doubtful - the wind up there would be over 100mph on a good day.
do you even know how much 100mph are? should be not very often in dubai i tink. or is the construction on the burj dubai maybe on-hold all the time because of heavy wind?
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Old September 8th, 2008, 09:35 PM   #9900
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Quote:
Originally Posted by deep sea buildings View Post
nice idea but highly doubtful - the wind up there would be over 100mph on a good day.
And he was already exhausted when he climbed succesfully the Taipei 101, which took him hours and hours to do it...
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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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