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Old November 10th, 2014, 11:31 AM   #9241
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The observation deck, should it be built, would be at roughly half the elevation of the city of Denver, Colorado, so I doubt you would even notice any difference in air quality whatsoever, much less need any sort of breathing apparatus.
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Old November 10th, 2014, 11:41 AM   #9242
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Old November 10th, 2014, 11:44 AM   #9243
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Quote:
Originally Posted by NatFan9 View Post
The observation deck, should it be built, would be at roughly half the elevation of the city of Denver, Colorado, so I doubt you would even notice any difference in air quality whatsoever, much less need any sort of breathing apparatus.
I don't think you should be comparing the elevation of a city in comparison to the height of skyscraper, i'm sorry to say it's sound absolutely ridiculous. Note that the atmosphere around the world is different, some cities have high humidity and have high (hot) temperatures and other things that make it necessary to have apparatus to help one breathe. Hense I am asking this question, I;m curious, would this be the case for Jeddah, would you need a mask to help you go out on the deck?... Thanks for trying to answer though, appreciate it.
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Old November 10th, 2014, 11:59 AM   #9244
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Kone will provide world’s fastest elevators for Kingdom Tower

Finnish company Kone will provide elevators that can travel at speeds of over 10 meters per second for the Kingdom Tower.

“The building will be more than 1,000 metres and the elevator shaft will be 637 metres in one shot,” said Henrik Ehrnrooth, the president and CEO of Kone Corporation. “It will be the highest, longest, above ground, lift shaft in the world. There will be a double decker elevator which will be the fastest in the world to cover the near half-a-mile distance. There are faster elevators in the world which are not double decker, but the speed at which these will travel will be swift and comfortable. Your ears will be able to balance and that is the compromise.”

A total of 65 KONE elevators and escalators will serve the Kingdom Tower including 21 KONE Monospace elevators, 29 Minispace elevators, 7 DoubleDeck Minispace elevatrs and 8 KONE TravelMaster 110 escalators.

The contract’s value is not disclosed but it is known that it also includes 10-year equipment maintenance.


source : http://www.kingdomtowerskyscraper.com/Kone-will-provide-world's-fastest-elevators-for-Kingdom-Tower.html
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Old November 10th, 2014, 12:14 PM   #9245
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Quote:
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I don't think you should be comparing the elevation of a city in comparison to the height of skyscraper, i'm sorry to say it's sound absolutely ridiculous. Note that the atmosphere around the world is different, some cities have high humidity and have high (hot) temperatures and other things that make it necessary to have apparatus to help one breathe. Hense I am asking this question, I;m curious, would this be the case for Jeddah, would you need a mask to help you go out on the deck?... Thanks for trying to answer though, appreciate it.
True, you make a good point so I decided to do some hasty research on the subject.

The best number I could find on the difference in air pressure at the bottom vs the top is a 1.5 psi (pounds per square inch) difference. The current air pressure in Jeddah is 1015 millibars, which converts to 14.72 psi. 1.5 less than 14.72 is 13.22 psi. I decided to use Denver as a breathable air reference point since I already mentioned it, and the current air pressure there is 817 millibars, which converts to 11.85 psi, still about 1.5 psi lower than the presumed pressure at the top of Kingdom Tower.

So overall, I still don't think any sort of breathing apparatus would be needed to enter the observation deck.
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Old November 10th, 2014, 12:39 PM   #9246
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Kathmandu is at 1400 meters and I've never heard of people experiencing altitude sickness when landing there. I don't think anyone will get problems beneath 3000 meters, but people can feel dizzy when landing in La Paz or Everest base camp (both approx. 3400 meters). In terms of breathing 1000 meters is nothing.
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Old November 10th, 2014, 12:43 PM   #9247
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The sides look a little bit different now. Why not just use some of the various open curves at sides as cafes, open restaurants, or even for observation and keep the uniformity of the tower intact.

Notice the difference!
Old


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Old November 10th, 2014, 12:53 PM   #9248
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Quote:
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Kathmandu is at 1400 meters and I've never heard of people experiencing altitude sickness when landing there. I don't think anyone will get problems beneath 3000 meters, but people can feel dizzy when landing in La Paz or Everest base camp (both approx. 3400 meters). In terms of breathing 1000 meters is nothing.
Also keeping in mind the observation deck isn't even at 1000m, its at about 600.
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Old November 10th, 2014, 02:41 PM   #9249
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10/11/2014

side 1





side 2




side 3






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Old November 10th, 2014, 04:37 PM   #9250
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wow,very fast!
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Old November 10th, 2014, 05:21 PM   #9251
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Looks like 6-7 floors now!

Do they pour 2 or 3 floors at once or something? Because the last few updates we were on floor 4!
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Old November 10th, 2014, 05:26 PM   #9252
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Wow!! so, it's already on the 7th or the 8th floor !!

I was expecting them to reach the 10th floor or something like that by the end of the year but now, I think it might be significantly more than that

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Old November 10th, 2014, 05:33 PM   #9253
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May be after the last visit from the prince

I think thay said something like increasing the working staff number to the maximum and as a result, the tower will get taller faster from now on ..
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Old November 10th, 2014, 05:36 PM   #9254
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the formworks are higher now no doubt, but almost impossible to say on which floor they're working right now or if they even poured a floor already. the next 2 weeks will tell us more
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Old November 10th, 2014, 06:29 PM   #9255
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Possibly casting level 2 of the core now, and the rebar extending to level 3 - 4
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Old November 10th, 2014, 08:16 PM   #9256
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great progress
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Old November 10th, 2014, 10:09 PM   #9257
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Wow, I wonder what it will be like by end of 2015.
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Old November 10th, 2014, 10:19 PM   #9258
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Wow, I wonder what it will be like by end of 2015.
Probably 60 to 80 floors already.
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Old November 10th, 2014, 10:23 PM   #9259
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Seems like it will finish by 2018 at this rate
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Old November 11th, 2014, 03:52 AM   #9260
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Really really nice and impressive shots! It´s finally growing up!
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