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Old June 25th, 2017, 12:05 AM   #16981
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Quote:
Originally Posted by naki View Post






I find out kingdom tower's brother!
This building is in our Xian.Its name is Shaanxi province broadcast mansion,it has been built for more than 25 years.Maybe Adrian Smith was looked at it for inspiration!
I think he was looking at this for inspiration.


http://www.wrightontheweb.net/wp-con...5/milehigh.jpg
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Old June 25th, 2017, 12:28 AM   #16982
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The Illinois has 500+ floors, come to think of it, why does Kingdom tower have so few floors? I know its shorter, but its still more than half the height, there should at least be 200+!
Jeddah tower is to have 252 floors in total

So please, moderators correct the thread topic to the total floors number, not to make more confusion
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Old June 25th, 2017, 03:18 AM   #16983
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From the Early 1930's to the 1970's, the only country building anything of any significant height was the United States. The 1930's were defined by the Great Depression, the early 1940's were defined by World War II and the resulting shortages of steel, and 1945 to the 1970's and further were defined by massive suburban sprawl and abandoning the cities. By the mid-1970's, New York City was almost bankrupt, Chicago was not in much better shape, and every company still wanted that sprawling office park with plenty of parking overlooking manicured lawns and gardens instead of gritty, crime-ridden cities.

It is only in the last 20 years that people have finally returned to the cities and they are honestly thinking about building tall, however cities in the USA have too much vacant or underused land to make it economical for a really tall tower. Manhattan is the rare exception, but hesitance to surpass One World Trade Center, resistance from the Federal Aviation Administration, and general NIMBYism (SHADOWS!!!!) have deterred almost all of the tallest buildings. Cities in Europe are plagued by severe NIMBYism (Moscow with its stubbornly weak economy is the only exception) so only China and the Middle East are really thinking about building more than 1500 feet high, and many are showpieces of the country's or a nationalized company's strength.

As long as the economy does not have a significant downturn anytime soon, really tall towers are possible in New York City, Chicago, and possibly Los Angeles, Philadelphia, Jersey City, San Francisco, and Atlanta in the next 10 years. New York City and Chicago flirted with 2000-footers immediately prior to the Great Recession and the others all had 1300-1500 foot proposals over the last 10 years or so.
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Old June 25th, 2017, 11:25 AM   #16984
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Quote:
Originally Posted by fayzoon View Post
Quote:
Originally Posted by Cliff View Post
The Illinois has 500+ floors, come to think of it, why does Kingdom tower have so few floors? I know its shorter, but its still more than half the height, there should at least be 200+!
Jeddah tower is to have 252 floors in total

So please, moderators correct the thread topic to the total floors number, not to make more confusion
Yes but only 167 floors will be usable and Burj Khalifa also have a total story count of 211 but an important part of them are mechanicals.
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Old June 25th, 2017, 02:22 PM   #16985
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بلبرینگ

با سلام
شرکت ما در زمینه ارائه انواع بلبرینگ در مدل ها و اندازه های مختلف برای انواع کاربردها به شما هموطنان گرامی خدمات ارائه می کند. لطفآ با کلیک بر روی کلمه بلبرینگ وارد سایت ما شده و از محصولات ما دیدن فرمایید. با تشکر
http://bearings-co.com
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Old June 25th, 2017, 04:03 PM   #16986
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Old June 25th, 2017, 04:59 PM   #16987
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I'm not sure what i should excpect in the future. Perhaps the investor have a financial problems. Comparing contruction speed to Burj Khalifa shows that too.
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Old June 25th, 2017, 11:58 PM   #16988
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Originally Posted by SiriusCane View Post
Yes but only 167 floors will be usable and Burj Khalifa also have a total story count of 211 but an important part of them are mechanicals.
Burj Khalifa has a total of 163, from where you've got this 211 number give us the source
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Old June 26th, 2017, 03:19 AM   #16989
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Nice Video !
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Old June 26th, 2017, 11:29 AM   #16990
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I'm not sure what i should excpect in the future. Perhaps the investor have a financial problems. Comparing contruction speed to Burj Khalifa shows that too.
Either financial problems or the plans with the downtown area surrounding this tower isnīt going as expected.
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Old June 26th, 2017, 10:59 PM   #16991
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Originally Posted by fayzoon View Post
Burj Khalifa has a total of 163, from where you've got this 211 number give us the source
Not sure about 211 specifically, but I thought Adrian Smith or Emaar had said that the building would "appear" structurally equivalent to 200 floors high. Thus in the same way, Jeddah Tower symbolizes a structure about 240 floors high, even if a fraction of that isn't able to be occupied.
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Old June 26th, 2017, 11:05 PM   #16992
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It's still core - 56 / wings - 45. It seems to have been stuck there for weeks.
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Old June 26th, 2017, 11:37 PM   #16993
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It's still core - 56 / wings - 45. It seems to have been stuck there for weeks.
In general, The productivity is significantly redused in Ramadan than other months. Works will be accelerated in the few coming months.
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Old June 27th, 2017, 02:33 AM   #16994
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Quote:
Originally Posted by The-Real-Link View Post
Not sure about 211 specifically, but I thought Adrian Smith or Emaar had said that the building would "appear" structurally equivalent to 200 floors high. Thus in the same way, Jeddah Tower symbolizes a structure about 240 floors high, even if a fraction of that isn't able to be occupied.
A floor is clearly counted when there is a roof above a roof

Actually, google on the internet gives you all the sources saying the 163 floors of burj khalifa as a total number including the mecahanical ones and 252 for Jeddah Tower as a total

He may be giving the 211 number from his head but it is logically possible and that is why I asked for the source but his source might be a random number
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Old June 27th, 2017, 03:26 AM   #16995
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BK does indeed have 200+ floors but the useable floors are only counted

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Old June 27th, 2017, 08:49 AM   #16996
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Good find

Also, it is saying 197 floors in other images from the same source but, it seems like it is around 200 and there is no official number



But even unusable mechanical floors should be counted and given an official number

Aren't they counting all the floors and giving it an official and exact number?

Or is only about counting only usable and it is always this way?

Some people do care about it and even in Wikipedia it is not mentioned at all for Burj Khalifa, the same applies for Jeddah Tower
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Old June 27th, 2017, 11:49 AM   #16997
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useable floors are only counted are only counted and that's that ... unusable ones are considered part of the spire not real floors
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Old June 28th, 2017, 01:48 AM   #16998
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Differences in stated tier/level count

Quote:
Originally Posted by fayzoon View Post
Good find

Also, it is saying 197 floors in other images from the same source but, it seems like it is around 200 and there is no official number



But even unusable mechanical floors should be counted and given an official number

Aren't they counting all the floors and giving it an official and exact number?

Or is only about counting only usable and it is always this way?

Some people do care about it and even in Wikipedia it is not mentioned at all for Burj Khalifa, the same applies for Jeddah Tower

hey fayzoon,

generally, as far as i can think of, differing numbers could come by

definition:
-what you count as floors (split the mezzanines or treat them as one)
-if you use the european or US way of counting the first floor as 1 or 0
-where you start the measurement: (as one forumite said in 2008) "The official CTBUH measurement will be done after completion and may include the concourse level which is 6 m. below the ground level but does have an entrance at "grade", and also the handrail around the top platform (1.1 m. high) as it is a permanent part of the structure."

or by "error":
-rounding up of numbers (slight difference)
-if one confuses the level/tier count
-the date of the drawing (design change: that wasn't the final design, as the correct tip height is 10m higher)
-errors by margin of guess
-error by misinformation at some stage (but i think in CULWULLAS case he had solid numbers from Imre Solt and other contributors)

Anyway, in December 2008 (or some weeks before), the legendary forumite Richard Braddish (member "CULWULLA", i guess an australian architect with an insane amount of practice in such drawings) changed the access levels in his floor breakdown of May as going from 164-205 (43), to 162-197 (36) in the what i believe last update

I don't know if his drawing always accurately represent the scale both in changing floor height ratios and the actual position all through the building - the focus definitely lies on the upper part, which should be very precise in the december version

his statement in 2010:
"the spire structure starts at about 634m, but you can access it all the way up to about 778m terrace.
heres a diagram i did years ago. you now add 10m to all dimensions (indicating the new tip height comes by new floors in the spire?).
the 150m spire actually starts way down inside the tower.
http://img158.imageshack.us/img158/7325/bdoct10xl9.jpg
so its not easy to say what is spire height.
lifts reach lev162 or 624m.
but if someone asked me, i would say 768m without spire."

Maybe the later December diagram of CULWULLA from 2008 fully matches the height that CTBUH gives for the Observatory height (148th @555.7m) and the highest occupied floor on 154th @584.5m https://www.skyscrapercenter.com/bui...burj-khalifa/3

What's definitely correct in CULWULLAS diagram: the concrete goes up to level 156/Tier 16; concrete structure is at 585.7m above ground: the measurement was made from the total height of the concrete starting from the raft @-15.25m below ground level - that's why the concrete top is often credited as being 601m, which is the total concrete structures height, but not above ground

other "animations" i liked so far:

that older unrelated french construction animation of 2008, which gave numbers, could match CULWULLAS sketch +10m:
it gives numbers of officially dated construction status heights and shows the whole structure starting at -15.25m; it seems to respect floor height ratios, but somewhere in the spire the design is outdated
https://www.youtube.com/watch?v=j3B2KRj844w

The concrete and steel floor height timetables ont this site nicely show the separation in tiers and levels, i think they match up with CTBUH and CULWULLAs numbers - But as you can see the diagrams and some numbers on that page are not accurate, seeing the bulky perspective render
http://www.burjdubaiskyscraper.com/facts.html

The dimetric projection of Burj Khalifa on Wikipedia is actually pretty good
it doesn't give much information about height, just the floors/tiers https://en.wikipedia.org/wiki/Burj_Khalifa

Pretty good amount of greatly detailed pictures of the top sections: the tiers and their designation https://www.urbanplanet.org/forums/t...update/?page=7



So far, i am not fully satisfied of any diagram, section or representation of Burj Khalifa i've encountered so far (i have looked not too deep into it and contacted no one to this day though)

I think for that i would need a 3D interactive model with true depth to scale inside a special architect/engineering software, but sadly i don't know about those - (if forum members could help out i''d be happy) - maybe my expectations are too high and i'd need to enter civil engineering for that

I would love to see a response by the forumite CULWULLA himself or the veterans of that threads most valuable information

greetings from eastern Swabia!
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Last edited by Meehoowk666; June 28th, 2017 at 02:29 AM.
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Old June 28th, 2017, 10:15 AM   #16999
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But mechanical floors are counted as well usually and they don't count as usable floors right? I think that they should also acknowledge the spire levels somewhere, because for example the Shard is cited as having 95 floors in many sites even though it only has 72 "real" floors and the rest are spire levels, so I don't see why the same should not apply for the Burj Khalifa and Jeddah Tower. I mean, if they count spires as official height they can also count spire levels as floors.
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Old June 28th, 2017, 07:29 PM   #17000
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It's mindblowing that at it's current uncompleted height this building is already taller than the tallest building in my state.
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