lake avenue
Active Member
- Mar 30, 2015
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no steel framed building before or after 9/11 has ever been hit by debris from another building while the integrity was challenged by fire. if you're trying to tell me that 275,000 pound planes travelling at 430 MPH (north tower) and 500 MPH (south tower) and ramming into a skyscraper would not cause debris to hit adjacent buildings, then I don't know what to tell you.There were radom office fires contained to a few floors..none of the little forensic testings shows temperatures from fire required for failure..no steel framed building before or after 9/11 has ever collapsed due to fire and none of this would explain a free-fall collapseexcept they do, I literally just gave you all the facts and temperatures that would cause this event to happen. if you don't like facts then I guess what you've said is truejet fuel can't melt steel beams
... but it can heat it enough to weaken it's structural integrity.
FACT: Jet fuel burns at 800° to 1500°F, not hot enough to melt steel (2750°F). However, experts agree that for the towers to collapse, their steel frames didn't need to melt, they just had to lose some of their structural strength, which requires much less heat.
"Steel loses about 50 percent of its strength at 1100°F," notes senior engineer Farid Alfawak-hiri of the American Institute of Steel Construction. "And at 1800° it is probably at less than 10 percent." NIST also believes that a great deal of the spray-on fireproofing insulation was likely knocked off the steel beams that were in the path of the crashing jets, leaving the metal more vulnerable to the heat.
Fires which came from other buildings that were burning from jet fuel.
This page has a video of it happening.
Footage that kills the conspiracy theories Rare footage shows WTC 7 consumed by fire Daily Mail Online
If you are implying that WTC 7 was brought down by intense heat from the fires, YOU ARE WRONG.
Steel structure framed buildings simply DO NOT collapse due to fire.
The fires burned out of control, this made floor beams near column 79 to expand and push a key girder off its seat that was originally disturbed by debris, this triggered the floors to fail around column 79 on Floors 8 to 14. With a loss of lateral support across nine floors, column 79 buckled, pulling the east penthouse and nearby columns down with it. With the buckling of these critical columns, the collapse then progressed east-to-west across the core, ultimately overloading the perimeter support, which buckled between Floors 7 and 17, causing the remaining portion of the building above to fall downward as a single unit. The fires, fueled by office contents, along with the lack of water, were the key reasons for the collapse.