9/11 EXPOSED
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29-12-2015, 04:14 PM
RE: 9/11 EXPOSED
(29-12-2015 02:49 PM)psikeyhackr Wrote:  
(28-12-2015 05:26 PM)skyking Wrote:  It was not a concrete structure. Any concrete in the building served other purposes. Lightweight concrete stairwell treads and landings, etc.

Do you actually regard that statement as informative?

Data about the building from before 9/11 said this about the towers:

Quote:200,000 tons of steel used in the construction of the World Trade Center complex
425,000 cubic yards of concrete used in the construction of the World Trade Center complex
https://www.nysm.nysed.gov/wtc/about/facts.html

Other sources agree for some peculiar reason:
http://www.infoplease.com/spot/wtc1.html
https://www.uwgb.edu/dutchs/pseudosc/911NutPhysics1.HTM
http://hypertextbook.com/facts/2004/EricChen.shtml

That much concrete should have weighed more than 300,000 tons per building. The NIST says two types of concrete were used 110 lb/cu ft and 150 lb/cu ft.

So the weight of the concrete in each building would have been greater than the weight of steel in each building.

HOWEVER:

There now seems to be a problem with getting data on the amount of concrete from any official sources since 9/11. The NIST does not seem to be able to say anything about it.

psik

The bulk of the concrete was used in the foundations. A quick calculation on the light-weight concrete used of flooring yields about 87,000 short tons per building.

The World Trade Center Twin Towers each had 110 floors covered with 4" of lightweight concrete. NCSTAR1_p60

Floor construction typically consisted of 4 inches of lightweight concrete on 1-1/2-inch, 22-gauge non-composite steel deck. In the core area, slab thickness was 5 inches. fema.gov

NCSTAR1-2_p228

Back of the napkin calculation:

4.35 in thick @ 36.5 pounds per square foot

each floor is 1 acre = 43530 ft^2

43530 ft^2 * 86.5 lb/ft^2 = 1,589,940 lbs/floor = 721,184 kg/floor = 795 short tons of lightweight concrete per floor * 110 = 87,446 short tons per building.

Get your facts straight.

“I am quite sure now that often, very often, in matters concerning religion and politics a man’s reasoning powers are not above the monkey’s.”~Mark Twain
“Ocean: A body of water occupying about two-thirds of a world made for man - who has no gills.”~ Ambrose Bierce
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29-12-2015, 04:21 PM
RE: 9/11 EXPOSED
I did not know all the decks were lightweight concrete, thanks.
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29-12-2015, 09:02 PM
RE: 9/11 EXPOSED
(29-12-2015 04:21 PM)skyking Wrote:  I did not know all the decks were lightweight concrete, thanks.

It only took 14 years for you to find out. The concrete slab was still 600 tons. The pans and trusses were 125 tons.

The concrete slabs in the core in front of the elevators were normal 150 lb/sqft concrete. They were 150 and 110, so the difference was only 40 lb/sqft, just 27% less.

psik
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29-12-2015, 09:04 PM
RE: 9/11 EXPOSED
(29-12-2015 09:02 PM)psikeyhackr Wrote:  
(29-12-2015 04:21 PM)skyking Wrote:  I did not know all the decks were lightweight concrete, thanks.

It only took 14 years for you to find out. The concrete slab was still 600 tons. The pans and trusses were 125 tons.

The concrete slabs in the core in front of the elevators were normal 150 lb/sqft concrete. They were 150 and 110, so the difference was only 40 lb/sqft, just 27% less.

psik

I really really really just want to hug you so much right now.
[Image: bearhugs.jpg]

#sigh
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29-12-2015, 09:09 PM
RE: 9/11 EXPOSED
(29-12-2015 04:14 PM)Full Circle Wrote:  NCSTAR1-2_p228

Back of the napkin calculation:

4.35 in thick @ 36.5 pounds per square foot

each floor is 1 acre = 43530 ft^2

43530 ft^2 * 86.5 lb/ft^2 = 1,589,940 lbs/floor = 721,184 kg/floor = 795 short tons of lightweight concrete per floor * 110 = 87,446 short tons per building.

Get your facts straight.

Tell all of the sources that specified 425,000 cubic yards before 9/11.

Only 86 of the floors used that modular design. All of the mechanical floors were constructed completely differently. You did not even compensate for elevator holes.

The NIST never specified the total amount of concrete just like I said. Why would lightweight concrete be in the basements? The numbers are TOTALS. There were 6 levels below ground.

psik
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29-12-2015, 09:13 PM (This post was last modified: 29-12-2015 09:21 PM by Full Circle.)
RE: 9/11 EXPOSED
(29-12-2015 09:09 PM)psikeyhackr Wrote:  
(29-12-2015 04:14 PM)Full Circle Wrote:  NCSTAR1-2_p228

Back of the napkin calculation:

4.35 in thick @ 36.5 pounds per square foot

each floor is 1 acre = 43530 ft^2

43530 ft^2 * 86.5 lb/ft^2 = 1,589,940 lbs/floor = 721,184 kg/floor = 795 short tons of lightweight concrete per floor * 110 = 87,446 short tons per building.

Get your facts straight.

Tell all of the sources that specified 425,000 cubic yards before 9/11.

Only 86 of the floors used that modular design. All of the mechanical floors were constructed completely differently. You did not even compensate for elevator holes.

The NIST never specified the total amount of concrete just like I said. Why would lightweight concrete be in the basements? The numbers are TOTALS. There were 6 levels below ground.

psik

Meaningless drivel without sources.

Besides your unsourced assertions they are also pointless.
Not having a point seems to be your MO.

“I am quite sure now that often, very often, in matters concerning religion and politics a man’s reasoning powers are not above the monkey’s.”~Mark Twain
“Ocean: A body of water occupying about two-thirds of a world made for man - who has no gills.”~ Ambrose Bierce
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29-12-2015, 09:29 PM
RE: 9/11 EXPOSED
(29-12-2015 09:02 PM)psikeyhackr Wrote:  
(29-12-2015 04:21 PM)skyking Wrote:  I did not know all the decks were lightweight concrete, thanks.

It only took 14 years for you to find out. The concrete slab was still 600 tons. The pans and trusses were 125 tons.

The concrete slabs in the core in front of the elevators were normal 150 lb/sqft concrete. They were 150 and 110, so the difference was only 40 lb/sqft, just 27% less.

psik

You're such a dick. You give Skyking grief while I take you to school on the actual construction parameters, something that after 14 years you're still quite ignorant about.

LMFAO Laugh out load Laugh out load Laugh out load

You are such a joke.

“I am quite sure now that often, very often, in matters concerning religion and politics a man’s reasoning powers are not above the monkey’s.”~Mark Twain
“Ocean: A body of water occupying about two-thirds of a world made for man - who has no gills.”~ Ambrose Bierce
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30-12-2015, 03:51 AM
RE: 9/11 EXPOSED
(29-12-2015 09:29 PM)Full Circle Wrote:  
(29-12-2015 09:02 PM)psikeyhackr Wrote:  It only took 14 years for you to find out. The concrete slab was still 600 tons. The pans and trusses were 125 tons.

The concrete slabs in the core in front of the elevators were normal 150 lb/sqft concrete. They were 150 and 110, so the difference was only 40 lb/sqft, just 27% less.

psik

You're such a dick. You give Skyking grief while I take you to school on the actual construction parameters, something that after 14 years you're still quite ignorant about.

LMFAO Laugh out load Laugh out load Laugh out load

You are such a joke.
I suspect he was in nappies (that's diapers for my American chums) 14 years ago. Laugh out load
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30-12-2015, 10:01 AM
RE: 9/11 EXPOSED
(30-12-2015 03:51 AM)adey67 Wrote:  
(29-12-2015 09:29 PM)Full Circle Wrote:  You're such a dick. You give Skyking grief while I take you to school on the actual construction parameters, something that after 14 years you're still quite ignorant about.

LMFAO Laugh out load Laugh out load Laugh out load

You are such a joke.
I suspect he was in nappies (that's diapers for my American chums) 14 years ago. Laugh out load
I just thought of the coincidence of my location that day. Driving in to work on the west coast, we already knew something was going on.
I was working 37 feet below street level, digging the garage space below a new mixed use building. It was eerie, the normally bustling skies over Seattle were silent.
The job was on the half the block that was shared with fire station #2, which was where emergency services headquarters was located at the time. Every news station and contractor lined Bell between 4th and 5th with the microwave masts up.
There must have been a half dozen news vans in a row on Bell. It was odd looking up at that from so far below street level.
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30-12-2015, 10:06 AM
RE: 9/11 EXPOSED
(29-12-2015 09:29 PM)Full Circle Wrote:  You're such a dick. You give Skyking grief while I take you to school on the actual construction parameters, something that after 14 years you're still quite ignorant about.

LMFAO Laugh out load Laugh out load Laugh out load

You are such a joke.

Construction parameters? I provided 4 links specifying 425,000 cubic yards for the total mount of concrete in the towers.

Where does the NIST provide any number for the total? The data that the NIST does provide does not come near that total. But does the NIST say that number is wrong? It is simply that if there was any concrete anywhere else the NIST does not mention it and you ASSUME that the NIST did not leave anything out.

But where is there any data on the horizontal steel beams in the core? No data so they must not exist, right? Try finding a flat picture on the layout of those beams. Were they the same on every floor? Since the elevator shafts were different lengths they did not have to be.

psik
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