Ya know some parts of those planes never burned at all. Some went straight through the building and out the other side. And it would be plausible that especially one of the terrorist “pilots” items would have been an item to go through the building.
Having done a great deal of structural fire restoration, yes, I've had to replace steel beams and only a few wood joists where the fire was hottest. The steel beam only needs to be compromised in a very small section to ruin it's integrity for the entire piece
It seems counterintuitive until knowing the science. Being a fire service instructor and having gone through the basic fire classes when first getting into the service, combined with a mech engineering background, it’s critical that FFs know the science regarding steel beam construction.
This is one of the reasons strip malls are so dangerous during fires. The fabricated steel trusses fail at surprisingly low fire intensities.
C'mon man, if you've done construction, you know someone screwed up something and wrote an RFI to get the engineer to sign off on what can't be changed and that margin is gone before the building ever sees a fire. Isn't that how the Hard rock cafe in New Orleans came down?
There's way, WAAY too much steel for such a weakening to even start being a remote possibility.
There's not NEARLY enough heat in those fires, and way too much ongoing dissipation.
Steel framed buildings stood after burning much hotter and much longer, plenty of times.
What about the molten red-hot slag seen pouring out of the building in some footage? Or the fact that they found molten steel in the wreckage? Thay speaks to the steel actually melting, not just softening.
This meme is stupid and works against your credibility. Does steel have to melt to get weak? At what temperature does steel degrade below spec?
What planet are you from? Passport found on street below magically appeared.
Im not saying its all as reported. Im commenting on the meme alone.
Ya know some parts of those planes never burned at all. Some went straight through the building and out the other side. And it would be plausible that especially one of the terrorist “pilots” items would have been an item to go through the building.
I don't think those of us with different opinions on some parts are denying it was planted.
Steel begins to lose structural integrity around 1000 deg.
Having done a great deal of structural fire restoration, yes, I've had to replace steel beams and only a few wood joists where the fire was hottest. The steel beam only needs to be compromised in a very small section to ruin it's integrity for the entire piece
It seems counterintuitive until knowing the science. Being a fire service instructor and having gone through the basic fire classes when first getting into the service, combined with a mech engineering background, it’s critical that FFs know the science regarding steel beam construction.
This is one of the reasons strip malls are so dangerous during fires. The fabricated steel trusses fail at surprisingly low fire intensities.
Thanks for the added info.
You have a LOT of homework to do, especially in physics.
C'mon man, if you've done construction, you know someone screwed up something and wrote an RFI to get the engineer to sign off on what can't be changed and that margin is gone before the building ever sees a fire. Isn't that how the Hard rock cafe in New Orleans came down?
BTW, thank you for being a voice of reason
There's way, WAAY too much steel for such a weakening to even start being a remote possibility. There's not NEARLY enough heat in those fires, and way too much ongoing dissipation.
Steel framed buildings stood after burning much hotter and much longer, plenty of times.
Unless youve done the math and can show us, your guess is as good as anyone elses.
What about the molten red-hot slag seen pouring out of the building in some footage? Or the fact that they found molten steel in the wreckage? Thay speaks to the steel actually melting, not just softening.
And thats pure aluminum. Plenty of alloys have lower melting points.
I have watch enough demolition and fire on building to know this isn't a simple fire from jet fuel.
Im sure you have TONS of jet fuel fire in skyscraper experience. How hot can jet fuel get?