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Originally posted by jthomas
Should be easy for you - it's YOUR claim.
Chicken?
Originally posted by HothSnake
reply to post by jthomas
It's simple tomboy, even for you to understand... The Twin Towers were an ingenius tube within a tube design, with 47 giant core collumns connected to 240 support collumns by steel trusses, which were first bolted and then welded into position, each of these were filled with concrete for reinforcement, thus each floor represented an acre of concrete alone, not counting the massive amount of steel.
A plane hitting the steel mesh design of the Twin Towers, would be likened to that of a pencil being pushed through a screen door. It may poke a hole in the screen, but the integrity of the whole screen is by no means threatened. The design of the buldings was for resiliency, thus they could sway back and forth in the wind (built to withstand hurricane force winds). The design was such that you could remove several of the supports, and still the integrity of the structure would still be supported by the tube-like design and steel mesh screen, plus the 47 giant steel core collumns, welded to 240 supports, and filled with concrete.
Again, I'll ask you a question... If you don't answer, then I'll assume that you can't answer it, thus you have given up and concede that the truthers are correct in questioning the official story.
How did two airplanes flying into the Twin Towers and the subsuquent jet fuel-based fires, cause global catastrophic failure, accross the entire steel, concrete structures of both Towers, nearly simultaneously, on the same day in the same place within minutes of the collission of the planes? These are the facts: These two steel, concrete reinforced structures imploded, while falling at free fall rate of speed, dissappearing into a dust pile within their own basements, just like you would expect to see in a controlled demolition, and certainly not what you'd expect to see otherwise (show me the precidence?).
Professional demolitionists (experts) saw the fall of Building 7 and were shocked when they were told the hilarious OS that it came down due to some small fires that raged for a few hours.
Again, can you answer my question, or do you admit that you don't know what you're talking about, and thus you resort to ad hom logical fallacy ploys in order to pose weak straw man arguments?
Remember coward, I asked you a question at the beginning of this thread, and you have been running and hiding from it ever since.
Show me the source for your claim that the "core columns were filled with concrete."
The core –a combined steel and concrete structure–[28][29] of each tower was a rectangular area 87 by 135 feet (27 by 41 m) and contained 47 steel columns running from the bedrock to the top of the tower. The large, column-free space between the perimeter and core was bridged by prefabricated floor trusses. The floors supported their own weight as well as live loads, providing lateral stability to the exterior walls and distributing wind loads among the exterior walls.[30] The floors consisted of 4 inch (10 cm) thick lightweight concrete slabs laid on a fluted steel deck. A grid of lightweight bridging trusses and main trusses supported the floors. The trusses connected to the perimeter at alternate columns and were on 6 foot 8 inch (2.03 m) centers. The top chords of the trusses were bolted to seats welded to the spandrels on the exterior side and a channel welded to the core columns on the interior side. The floors were connected to the perimeter spandrel plates with viscoelastic dampers which helped reduce the amount of sway felt by building occupants. The trusses supported a 4-inch (100 mm) thick lightweight concrete floor slab with shear connections for composite action.[31]From Wikipedia, the free encyclopedia
Structural design
"The structural engineering firm Worthington, Skilling, Helle & Jackson worked to implement Yamasaki's design, developing the tube-frame structural system used in the twin towers. The Port Authority's Engineering Department served as foundation engineers, Joseph R. Loring & Associates as electrical engineers, and Jaros, Baum & Bolles as mechanical engineers. Tishman Realty & Construction Company was the general contractor on the World Trade Center project. Guy F. Tozzoli, director of the World Trade Department at the Port Authority, and Rino M. Monti, the Port Authority's Chief Engineer, oversaw the project.[25] As an interstate agency, the Port Authority was not subject to local laws and regulations of the City of New York including building codes. Nonetheless, the structural engineers of the World Trade Center ended up following draft versions of the new 1968 building codes.[26]
The World Trade Center in March 2001The tube-frame design, earlier introduced by Fazlur Khan, was a new approach which allowed open floor plans rather than columns distributed throughout the interior to support building loads as had traditionally been done. The World Trade Center towers utilized high-strength, load-bearing perimeter steel columns called Vierendeel trusses that were spaced closely together to form a strong, rigid wall structure, supporting virtually all lateral loads such as wind loads, and sharing the gravity load with the core columns. The perimeter structure containing 59 columns per side was constructed with extensive use of prefabricated modular pieces each consisting of three columns, three stories tall, connected by spandrel plates.[26] The spandrel plates were welded to the columns to create the modular pieces off-site at the fabrication shop.[27] Adjacent modules were bolted together with the splices occurring at mid-span of the columns and spandrels. The spandrel plates were located at each floor, transmitting shear stress between columns, allowing them to work together in resisting lateral loads. The joints between modules were staggered vertically so the column splices between adjacent modules were not at the same floor.[26]
The core of the towers housed the elevator and utility shafts, restrooms, three stairwells, and other support spaces. The core –a combined steel and concrete structure–[28][29] of each tower was a rectangular area 87 by 135 feet (27 by 41 m) and contained 47 steel columns running from the bedrock to the top of the tower. The large, column-free space between the perimeter and core was bridged by prefabricated floor trusses. The floors supported their own weight as well as live loads, providing lateral stability to the exterior walls and distributing wind loads among the exterior walls.[30] The floors consisted of 4 inch (10 cm) thick lightweight concrete slabs laid on a fluted steel deck. A grid of lightweight bridging trusses and main trusses supported the floors. The trusses connected to the perimeter at alternate columns and were on 6 foot 8 inch (2.03 m) centers. The top chords of the trusses were bolted to seats welded to the spandrels on the exterior side and a channel welded to the core columns on the interior side. The floors were connected to the perimeter spandrel plates with viscoelastic dampers which helped reduce the amount of sway felt by building occupants. The trusses supported a 4-inch (100 mm) thick lightweight concrete floor slab with shear connections for composite action.[31]
Hat trusses (or "outrigger truss") located from the 107th floor to the top of the buildings were designed to support a tall communication antenna on top of each building.[31] Only 1 WTC (north tower) actually had an antenna fitted; it was added in 1978.[32] The truss system consisted of six trusses along the long axis of the core and four along the short"
There is no "official story." Sorry. But you demonstrate quite easily that you have no knowledge about the construction of the towers nor why anyone on this earth would believe 9/11 "Truthers" when they NEVER get any facts correct.
2. Show me your source for the claim that WTC 1, 2, and 7 fell at "free fall rates of speed" when it took around 14 seconds for each of those towers too collapse.
3. Show me any "controlled demolition" that started at the top and worked down.
No. a) It took 14 seconds from beginning to end for WTC 7 to collapse. b) Professional demolition experts were not surprised at any of the collapses.
That statement is a good example of what is known as the "arrogance of ignorance." You have just stated claims that have been debunked for years and you expect ANYONE to take you seriously?
TextI easily showed you were just as wrong then as you are now.
Now, get busy and provide us the sources for your claims above.
This should be fun.
Originally posted by HothSnake
reply to post by jthomas
Again, can you answer my question, or do you admit that you don't know what you're talking about, and thus you resort to ad hom logical fallacy ploys in order to pose weak straw man arguments? Remember coward, I asked you a question at the beginning of this thread, and you have been running and hiding from it ever since. In the mean time, I'm not going to fall for your non answer of my question by asking me off-topic, and meaningless questions. Just answer my damn question, if you can?
posted by jthomas
Isn't it interesting that I have never claimed that the "security camera video shows any aircraft hitting the Pentagon." Just so we're clear about that, I want you to show everyone here any post I have made on any forum in which I have said that the security camera video shows anything hitting the Pentagon.
If you can't do that, then you will issue a public retraction right here, correct? What's that, you can't? C'mon, be a sport, just try.
In fact, as we rational people have said for years, one cannot conclude by looking at the security camera video that anything hit the Pentagon.
posted by HothSnake
reply to post by SPreston
You're right... After all, the poor guy doesn't know what he's doing, so I guess that we shouldn't blame him too much for drinking the government Koolaid so that he can be one of the cool kids. Maybe I should take it a little easier on him. He's just a product of his environment.
posted by HothSnake
He seems to have ran away for good? What? No argument, no evidence at all? I agree that it's very hard to argue with your own eyeballs.
posted by jthomas
Isn't it interesting that I have never claimed that the "security camera video shows any aircraft hitting the Pentagon." Just so we're clear about that, I want you to show everyone here any post I have made on any forum in which I have said that the security camera video shows anything hitting the Pentagon.
If you can't do that, then you will issue a public retraction right here, correct? What's that, you can't? C'mon, be a sport, just try.
In fact, as we rational people have said for years, one cannot conclude by looking at the security camera video that anything hit the Pentagon.
Official US Government Pentagon Building Performance Report
Official Report Hosted by NIST
Produced by:
American Society of Civil Engineers (ASCE) and Structural Engineering Institute (SEI)
3.3 SECURITY CAMERA PHOTOGRAPHS
A Pentagon security camera located near the northwest corner of the
building recorded the aircraft as it approached the building. Five photographs (figures 3.3 through 3.7), taken approximately one second apart, show the approaching aircraft and the ensuing fireball associated with the initial impact.The first photograph (figure 3.3) captured an image of the aircraft when it was approximately 320 ft (approximately 0.42 second) from impact with the west wall of the Pentagon.Two photographs
(figures 3.3 and 3.7), when compared, seem to show that the top of the
fuselage of the aircraft was no more than approximately 20 ft above the
ground when the first photograph of this series was taken.
[atsimg]http://files.abovetopsecret.com/images/member/7dda368fe961.jpg[/atsimg]
[atsimg]http://files.abovetopsecret.com/images/member/3fbeeb3cf85c.jpg[/atsimg]
source
Originally posted by HothSnake
reply to post by jthomas
Video Link
Question: If the 9-11 Commission and NIST report are correct, and the building fell at a rapid pace (nearly the speed of gravity) because the bolts, rivets, trusses and steel frame work were weakened by the fire, then how could the concrete be pulverized and ejected at very highspeed, since the force to do so would be greater than the force needed to sheer the weakened steel, bolts, and rivets?
Show me the source for your claim that the "core columns were filled with concrete."
The core –a combined steel and concrete structure–[28][29] of each tower was a rectangular area 87 by 135 feet (27 by 41 m) and contained 47 steel columns running from the bedrock to the top of the tower. The large, column-free space between the perimeter and core was bridged by prefabricated floor trusses. The floors supported their own weight as well as live loads, providing lateral stability to the exterior walls and distributing wind loads among the exterior walls.[30] The floors consisted of 4 inch (10 cm) thick lightweight concrete slabs laid on a fluted steel deck. A grid of lightweight bridging trusses and main trusses supported the floors. The trusses connected to the perimeter at alternate columns and were on 6 foot 8 inch (2.03 m) centers. The top chords of the trusses were bolted to seats welded to the spandrels on the exterior side and a channel welded to the core columns on the interior side. The floors were connected to the perimeter spandrel plates with viscoelastic dampers which helped reduce the amount of sway felt by building occupants. The trusses supported a 4-inch (100 mm) thick lightweight concrete floor slab with shear connections for composite action.[31]From Wikipedia, the free encyclopedia
Originally posted by HothSnake
Structural design
The core –a combined steel and concrete structure
Originally posted by HothSnake
reply to post by jthomas
2. Show me your source for the claim that WTC 1, 2, and 7 fell at "free fall rates of speed" when it took around 14 seconds for each of those towers too collapse.
Actually, 8 seconds would be freefall within a vaccuum, but the Towers didn't exist in a vacuum, did they? So 14 seconds is remarkably little amount of time for two 110 story steel concrete structures to be pulverized to dust, and dissappear into their on basement, without any help from somekind of explosives, don't you think?
Originally posted by HothSnake
The core –a combined steel and concrete structure
This is not referring to the concrete slab floors bud, but to a combined steel and concrete core, i.e., the core, not just the floors was constructed of concrete and steel. Nice try at dodging obvious evidence here, but I guess that Wikepedia got it all wrong, right?
Everyone knows what the NIST report says, so I really don't need to quote it.
It was a weak government attempt at explaining the impossible: sagging trusses, dislodged supports, etc. don't explain or answer my questions above.