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



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Old October 21st, 2016, 12:19 PM   #1081
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The observation deck, above the tower in Jeddah
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Old October 21st, 2016, 12:37 PM   #1082
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I am not claiming to be a psychic but here's my prediction from couple of weeks back

Quote:
Originally Posted by Gabriel900 View Post
If I was Emaar I would want my highest observation deck to be at 1000m which makes the architectural height of this tower somewhere between 1250 and 1300m (which is what emaar might be aiming for )

So my prediction is the final height of this tower to be ~1300m, with the highest observation deck on 1000m and habitable floors starting from ~ 600m
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Old October 21st, 2016, 05:37 PM   #1083
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Amazing guess! I hope it comes to be true!

PS. There are no psychics and paranormal activities in the world, you can always make sure with James Randi Educational Foundation (google his videos to have some fun).
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Old October 21st, 2016, 07:17 PM   #1084
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Quote:
Originally Posted by Nemiq View Post
Top floor is marked as floor 54 - Technical entry for spire, with floor level 1014m. :-)
Where did you get this information from?
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Old October 22nd, 2016, 07:47 AM   #1085
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Quote:
Originally Posted by KillerZavatar View Post
Where did you get this information from?
From tendering specification for the elevators.
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Old October 22nd, 2016, 09:31 AM   #1086
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so to get from ground to the top, how often do you have to switch elevators? no way an elevator is going 1050m up and down.
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Old October 22nd, 2016, 09:54 AM   #1087
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So wait a second can we consider 54F as official now?! Man last floor is at 1014m this hybrid of a beauty is just insane

Shall we change the title to 1014m+ and 54F?
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Old October 22nd, 2016, 11:36 AM   #1088
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Do we have an official source for that?

Quote:
Originally Posted by KillerZavatar View Post

so to get from ground to the top, how often do you have to switch elevators? no way an elevator is going 1050m up and down.
A maglev elevator could do that. But i don't know if these kind of elevators are ready to use yet.
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Old October 22nd, 2016, 02:23 PM   #1089
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i think the swaying of the building will cause problems if u do a 1050m elevator. Because u would want to have very high speed on the elevator. And tall buildings are known to move some. They would probably need to have Damping systems just for the elevator shaft alone.
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Old October 22nd, 2016, 04:29 PM   #1090
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KillerZavatar, Finnish KONE has announced a 1K approachability almost 4 years ago with its carbon-fibre UltraRope:



Such things usually do improve over a 4 yrs. period of time. Especially that the testing is already 12 years underway.

ZZ-II, ThyssenKrupp was indeed fantasizing about it:
http://spectrum.ieee.org/tech-talk/t...deways-by-2016. But when I think about the MagLev transporation cost, I highly doubt about its usage in elevators.

INFERNAL ELF, swaying is not an issue, and that's how it's dealt with:

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Old October 22nd, 2016, 05:52 PM   #1091
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50% of the height of a building must contain usable surfaces and floors in order to be taken into account when ranking the tallest building in the world. so this tower can not be the tallest tower in the world even if reach one mile tall .

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Old October 22nd, 2016, 07:23 PM   #1092
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Does not seem to be anything except observation decks in this tower.

From ground floor up to floor "15" at 700m are marked as non-real floors. Then a couple of refuge floors before reaching the first observation floors at ~760m. Transfer from first elevator group to another bank of elevators at ~800m, from there upwards everything is marked as VIP Observation floors etc.

A mass damper at ~970m..
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Old October 22nd, 2016, 08:12 PM   #1093
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Quote:
Originally Posted by AP Design View Post

ZZ-II, ThyssenKrupp was indeed fantasizing about it:
http://spectrum.ieee.org/tech-talk/t...deways-by-2016. But when I think about the MagLev transporation cost, I highly doubt about its usage in elevators.
ThyssenKrupp is not just fantasizing about a maglev elevator. They build a 246m tall test tower in Germany which will open next year. It's to test and engineer exactly these kind of elevators.
But i don't know if other firms are currently doing the same.

But i'm 100% sure that these elevators will come in the future because they can't only drive up and down but also left and right.
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Old October 22nd, 2016, 09:07 PM   #1094
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Quote:
Originally Posted by Nemiq View Post
Does not seem to be anything except observation decks in this tower.

From ground floor up to floor "15" at 700m are marked as non-real floors. Then a couple of refuge floors before reaching the first observation floors at ~760m. Transfer from first elevator group to another bank of elevators at ~800m, from there upwards everything is marked as VIP Observation floors etc.

A mass damper at ~970m..
There is an hotel and sky gardens too
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Old October 23rd, 2016, 02:59 AM   #1095
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Quote:
Originally Posted by ZZ-II View Post
ThyssenKrupp is not just fantasizing about a maglev elevator. They build a 246m tall test tower in Germany which will open next year. It's to test and engineer exactly these kind of elevators.
But i don't know if other firms are currently doing the same.

But i'm 100% sure that these elevators will come in the future because they can't only drive up and down but also left and right.
I wonder why for a similar purpose nobody had seriously considered a mechanical solution. It would be only a tiny bit more complicated than a standard roped elevator system. It only requires a few configurable servos attached to the cabin, a few current collectors with rails, and just a pair of side-feeding rails per junction. The cabin, as well as the rail side-feeders, must be communicating with the Elevator Control System via Wi-Fi through a grid of repeaters. It's only a standard invention problem in a mechanical engineering R&D pipeline. And for any inventor it's a routine job, to come up with solutions.
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Old October 23rd, 2016, 03:18 AM   #1096
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I figure the KONE Ultrarope product could be used here, since in their videos they said 1,000 meters was the forseeable limit for now. But even if it's at 1,050m+ of shaft, I think the weight was still well within what current traditional motors could hoist. I don't know what the limit would be as to the height of a shaft with Ultrarope before the motor limit would be reached or the Ultrarope itself. But if KONE already said pretty much that 1,000m is doable, then it wouldn't surprise me.

But as was mentioned, one elevator to the ~800m range, and another for higher up makes sense.
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Old October 23rd, 2016, 04:47 AM   #1097
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There's no big choice. Steel is not usable at such heights. Even if it was a conventional suspension system, only the standard cables would amount to around 2 m³ of steel. But the standard ones cannot reliably hold this much. And now add to that amount a luxury cabin with marble floor and a large mirror, the counterweight, and an increased amount of cables width. It will sum up to dozens of tons. Plus, quite a standard lift cabin for large towers has a capacity of 1200kg/18pax.
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Old October 23rd, 2016, 11:09 AM   #1098
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Quote:
Originally Posted by Nemiq View Post
Does not seem to be anything except observation decks in this tower.

From ground floor up to floor "15" at 700m are marked as non-real floors. Then a couple of refuge floors before reaching the first observation floors at ~760m. Transfer from first elevator group to another bank of elevators at ~800m, from there upwards everything is marked as VIP Observation floors etc.

A mass damper at ~970m..
Quote:
Originally Posted by Burj Khalifa fan View Post
There is an hotel and sky gardens too
15F for 700m that's a first

No doubt their is a hotel as well and sky gardens (which will still be labeled observation decks though) Nemiq thank you greatly for all these awesome details.

Title will be changed to 55F (including roof)
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Old October 23rd, 2016, 12:47 PM   #1099
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Quote:
Originally Posted by Nemiq View Post
From ground floor up to floor "15" at 700m are marked as non-real floors. Then a couple of refuge floors before reaching the first observation floors at ~760m. Transfer from first elevator group to another bank of elevators at ~800m, from there upwards everything is marked as VIP Observation floors etc. A mass damper at ~970m..
I planted Nemiq's numbers and descriptions onto a render, as accurately as I humanly can... The guestimated height at the spire tip is about 1192 metres. (We need CULWULLA back!)


TTDCH by Kwok Bobby, on Flickr
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Old October 23rd, 2016, 03:57 PM   #1100
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Are the sky gardens really just accessible for VIP's?
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