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Old November 21st, 2009, 05:43 PM   #11701
BStyles
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Hey guys. I just joined, but I'm not a newbie when it comes to the WTC site. I've been watching the site grow for years.

Quote:
Originally Posted by Tylow View Post
I think you might be wrong for the upper floors.

This one is more accurate:

Uh, you might have skipped a mechanical floor between the orange and green lines, because there are only five(but technically it ends at six). The diagonals also end on the roof of the floor above the one they're currently elevating to.
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Old November 21st, 2009, 06:24 PM   #11702
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why do they have so many mechanical floors just above the lobby? Couldn't some of them have been under ground? that would leave more available space to rent(not the best space in the tower but still rentable).
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Old November 21st, 2009, 06:25 PM   #11703
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I think a lot of it was security driven, they’re worried about car bombs.
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Old November 21st, 2009, 06:28 PM   #11704
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Tylows picture is absolutely right and his marks too!
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Old November 21st, 2009, 06:31 PM   #11705
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Quote:
Originally Posted by Onn View Post
I think a lot of it was security driven, they’re worried about car bombs.
ahh yes, the WTC bombing in the '90. Makes perfect sense to me now, thanks
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Old November 21st, 2009, 06:34 PM   #11706
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Quote:
Originally Posted by BStyles View Post



Uh, you might have skipped a mechanical floor between the orange and green lines, because there are only five(but technically it ends at six). The diagonals also end on the roof of the floor above the one they're currently elevating to.

Indee there is, but on the plan it's not notified, hence I did not mark it.
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Old November 21st, 2009, 07:15 PM   #11707
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Quote:
Originally Posted by BStyles View Post
The diagonals also end on the roof of the floor above the one they're currently elevating to.
There will be two more floors above the current elevation of steel. The diagonals will end at height of the 6th floor. That's why Tylow's diagram is accurate and spectre's is not.

Here is a diagram which should explain where the diagonals are going to end:

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Old November 21st, 2009, 07:16 PM   #11708
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First of all, the lobby is the first floor (elevation Zero). Tucked up under and hanging from the 3rd floor is the second floor. Next we have 3M, it's not counted as a floor for two reasons, 1) no elevators well stop at it 2) it is not a full floor, think of it as four balcony's with mechanical equipment on them.
Next the fourth floor, then 4M (see above notes about 3M) then we get to the fifth floor, also the current top of core steel.

Then we go 5M then 6 then 6M then 20, the first office floor at an elevation of 186' 8".

Floor to floor heights in the base are all pritty much the same 28' 2". (From the 3rd floor to the 4th floor for example)

The office floors well have a 13' 4" floor to floor height.
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Old November 21st, 2009, 07:19 PM   #11709
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Quote:
Originally Posted by Tylow View Post
I think you might be wrong for the upper floors.

This one is more accurate:

Your blue and green lines are incorrect. They are the next floors up. 1WTC is 160 feet high. The 7th/20th floor is the very next floor above that at 186 feet. Take a ruler and scale the diagram vs real picture.
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Old November 21st, 2009, 07:26 PM   #11710
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Thx Zen for verifying our counting.

@Spectre
Just read Zens post and look at my current diagram while reading, it explains it all.
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Old November 21st, 2009, 07:43 PM   #11711
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That 160 foot hight is wrong, they must be measuring from low tide or something.

Current top of core steel is about 5 feet above the fifth floor. The fifth floor is 125' 7" above the lobby finished floor, so call it 130'.

PS: glassstoneandsteel.com is a rather poor source for accurate information, as is wikipedia, and sometimes the PA too.

Last edited by Zensteeldude; November 21st, 2009 at 07:49 PM.
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Old November 21st, 2009, 07:48 PM   #11712
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Quote:
Originally Posted by Zensteeldude View Post
That 160 foot hight is wrong, they must be measuring from low tide or something.

Current top of core steel is about 5 feet above the fifth floor. The fifth floor is 125' 7" above the lobby finished floor, so call it 130'.
Thanks Zen, that's what was screwing me up. Looking at pics of the podium it appeared that the next tier of perimeter steel /|\ connected the three beams, thus reaching the height of 186'. I'm still not 100% sold. I'm working on another picture right now. Just for fun.

Nothing like a good little debate.
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Old November 21st, 2009, 07:54 PM   #11713
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Also I think the spacing of the girts to support the glass curtain wall might be throwing some people off. They are spaced at 13' 4" just like the office floors. But they do not align with the mechanical floors.
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Old November 21st, 2009, 07:56 PM   #11714
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@Spectre
They will still have to add another big joint piece for the steel. Even if the diagonal columns are close to connect after the next floor, there would be no room for the joint piece to be placed below the office floors.

@Zen
Yes I noticed the odd placement of the windows. Some people may think 3 Windows = 1 Floor. The outer perimeter columns look like the frame for the windows, so you can see that the 4th floors decking is in between the third window of the floor. So 1 mechanical floor is like 2 and 1/3 windows. Maybe you have more accurate numbers?

Last edited by Hightech Pro; November 21st, 2009 at 08:01 PM.
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Old November 21st, 2009, 08:03 PM   #11715
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I should've known better than to have trusted the Port Authority!
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Old November 21st, 2009, 08:20 PM   #11716
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So is this what we can expect? Or close to it, sorry my picture is missing a few beams and not scaled precisely.

Then I guess the south side connects all the way to the top, but the east and west have that extra level. That is really screwed up!
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Old November 21st, 2009, 08:26 PM   #11717
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@Spectre
Seems like you are totally screwed now! If you have a closer look at your weird (sorry) drawing, you will notice, that it is impossible to make the diagonals connect at the top of the next floor without bending the line. And you even made the next floor super high...


This is what we will see on every side of the building:


Last edited by Hightech Pro; November 21st, 2009 at 08:34 PM.
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Old November 21st, 2009, 08:30 PM   #11718
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I think I got the scale right on this one. I'm mostly interested in the overall height of the building right now.

Last edited by spectre000; November 21st, 2009 at 09:02 PM.
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Old November 21st, 2009, 09:52 PM   #11719
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GreenwichBoy, November 21st wirednewyork.com



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Old November 21st, 2009, 10:05 PM   #11720
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Quote:
Originally Posted by spectre000 View Post



I think I got the scale right on this one. I'm mostly interested in the overall height of the building right now.
But where did the 6th floor go? I thought you got our idea now? They need another floor for the diagonals, believe me. The lines in my following drawing are exactly along those of the already existing columns, and not just elongations of them.



Last edited by Hightech Pro; November 21st, 2009 at 10:20 PM.
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