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



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Old March 26th, 2008, 01:47 PM   #5241
idkblk
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Here are some more pictures of it:
http://www.spiegel.de/panorama/0,1518,543454,00.html
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Old March 26th, 2008, 02:00 PM   #5242
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Quote:
Originally Posted by DocShergar View Post
IWhile i remember.
A show called Big, Bigger, Biggest is on next Tuesday night at 8pm on Five in the UK. This week was about how airports got bigger with huge feature on the new Heathrow terminal 5.
Next week is all about tallest buildings in the world with what looks like a large BD feature with what looked like quite recent pictures!!
Dont miss it if you are in the UK!!
Cheers for that. Just set to record - looking forward to a decent program on my fav building.
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Old March 26th, 2008, 04:50 PM   #5243
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Quote:
Originally Posted by mole View Post
Ah, but what do you mean by "withstand" ?

There is a wide misunderstanding that buildings complying with building codes will "withstand" earthquakes up to a certain intensity without damage. Not so. The building codes are designed to maximise the occupants' chances of survival - it's impossible to guarantee that the building will emerge undamaged.
You're partly right Mole. I didn't want to complicate the discussion further! In some parts of the world, eg San Fran, Tokyo, they do actually design for a 'serviceability earthquake' with a reduced return period, for which the building has to be in good condition after the event. They of course also design for the 'ultimate earthquake' with a longer return period, for which survival of the occupants is the only objective. Certainly in Australia, the earthquake design code is purely for ultimate limit states - any amount of damage is tolerable, provided the safety of occupants has been designed for. We expect the building to probably be bulldozed afterwards, or at least have very major repairs. But everyone should get out alive.

Generally the public have no concept of what buildings are designed for - a lot of engineers don't even have a clear enough understanding of the principles of probability etc. There is no way to guarantee anything with buildings - it is all based on probability of design loads and probability of material properties etc. There is a big philosophical difference between saying that we are 99.99% sure a building will withstand any earthquake in the next 100 years and saying we are 100% sure. The latter is simply not possible. The probability of failure we accept is all driven by economics, which ironically is dictated by a public which has no understanding of what the associated risks are.

It should be understood that every building has some probablity of failure, but the size of that probability is dictated by how much society is willing to pay for a building. This in turn is the driving force behind what safety factors are used in design codes.
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Old March 26th, 2008, 08:04 PM   #5244
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Burj Dubai and Burj Dubai Downtown 26/March/2008











more pics here:

http://www.flickr.com/photos/imresol...7604257144172/
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Old March 26th, 2008, 08:24 PM   #5245
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I love width-angle pics like the last one! thx
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Old March 26th, 2008, 08:29 PM   #5246
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Originally Posted by BlackSmith! View Post
Great to hear, I hope it is for the 7th level.
quite sure, the 6th floors seems to be completed
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Old March 26th, 2008, 09:52 PM   #5247
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Could this be the base for the new crane?

[IMG]http://i31.************/2vxf148.jpg[/IMG]
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Old March 26th, 2008, 10:59 PM   #5248
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The cladding has really caught up, cant wait to see them start cladding the steel section though.

Does anyone know wich floor they will start constructing the spire in??
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Old March 26th, 2008, 11:05 PM   #5249
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according to the plan i've already at floor 156
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Old March 26th, 2008, 11:55 PM   #5250
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Old March 27th, 2008, 12:18 AM   #5251
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yes, seems like the steel structure crane is being placed. i had it attached to highest concrete section but seems they have it at lower at tier 17/605m.
ive updated diagram to reflect changes.



thanks again for amazing pix imre
gee the 300m+ lake hotel at right looks small compared to the BujD

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Old March 27th, 2008, 12:35 AM   #5252
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just reposting this for those who havet seen it.
you can see the aircraft beacon platform is quite substantial at top of pinnacle.
imagaine being the maintenance guy who has to step out on the platform? lol
the aircraft lights are those 3 boxes which site on platform. note the spiralling fins down the pinnacle.
also you can see how small the terraces are down at tiers 27 (768m), 26 (758m)& 25 (749m).

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Old March 27th, 2008, 12:53 AM   #5253
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Quote:
the 300m+ lake hotel at right looks small compared to the BujD
It *is* quite small compared to the Burj D
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Old March 27th, 2008, 03:19 AM   #5254
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Imre....those pictures from March 26 are speeeeeeeeeeectacular!!!!! I just got home and sat down to look and I let out a big WOW!!!!

So crisp and clean, great images.
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Old March 27th, 2008, 05:17 AM   #5255
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Quote:
Originally Posted by CULWULLA View Post
just reposting this for those who havet seen it.
you can see the aircraft beacon platform is quite substantial at top of pinnacle.
imagaine being the maintenance guy who has to step out on the platform? lol
the aircraft lights are those 3 boxes which site on platform. note the spiralling fins down the pinnacle.
also you can see how small the terraces are down at tiers 27 (768m), 26 (758m)& 25 (749m).
Thanks Culwulla, with the diameter if the pinnacle being 1200mm at the top, it would appear the aircraft beacon boxes are around 500mm wide. I'd assume they would be accessed from behind so the maintenance guy wouldnt have to leave his 'comfortable' spot in the centre of the pinnacle

btw Thanks for the great pics Imre
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Old March 27th, 2008, 06:02 AM   #5256
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Quote:
Originally Posted by Perennial Quest View Post
Could this be the base for the new crane?

[IMG]http://i31.************/2vxf148.jpg[/IMG]
certainly does look that way
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Old March 27th, 2008, 06:23 AM   #5257
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It could be for the recovery crane... it would seem strange now that they would put another one up.. and wasnt there a post that said two would go up for a while... and there are more sections on the ground for these two cranes.
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Old March 27th, 2008, 06:31 AM   #5258
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yeah, hopefully this is not a sign or height reduce. but that's just a thought. chances of that happening is slim. but the original plan was to have a tower crane at the top of the concrete frame, which never happened.
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Old March 27th, 2008, 06:36 AM   #5259
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Very nice updates ! Still at 624 m.?
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Old March 27th, 2008, 07:56 AM   #5260
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area Size Approx

posted from SSP
Quote:
Originally Posted by Fury View Post
Hi all.

The next level which they will be starting soon is the first of tier 18 ( and will make the structure 630.5 m. making it the tallest on the planet )which has a terrace or setback making it smaller than tier 17.

Here is the size of tier 18 ...



Approx. 260 Sq. M. or over 2600 Sq. Ft. - NOT 500 Sq. Ft.

Hope this helps clear up the confusion that the floor area is very small right now.

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