Hmm.. From every source I've came across, gas lines were cut once the building was impacted... Which could explain why there were no 'explosions' after the plain impacted..
The crash alone won't necessarily cause anything. What the crash does is it creates a hole in the structure and knocks off much of the beams, columns, girders, etc. So yes it may be true that some gas lines were cut, but probably not all of them.
But you see, the crash isn't the only thing. Now you've got the fire and the jet fuel produced thrown into the mix. Like I've said before, fire burning at high degrees for certain periods of time will eventually start deforming objects and creating thermal effects which will throw the design and mechanics of the building into total disarray. They won't explode immediately, such materials like steel or reinforced concrete will slowly start deforming and once they start fatiguing, they will buckle and mess up the rest of the MEP (mechanical, electrical and plumming) systems throughout the whole building. A simple leak due to gas lines being cut from the initial impact will not create as much of an explosion or effect as would entire floors of the tower crashing down onto the lower levels and smashing the systems and hidden flammables behind the walls.
It kind of sounds like an observed opinion to me.. Are you a Sociology major, and do you have the credentals to prove the quote?
It is an opinion. But that statement of mine was used to back up my point that just because people heard explosions doesn't automatically mean that what they heard were really bombs.
Oh and no, I am a Civil/Structural engineering major.
......Didn't the building collapse from the floors where the plane hit? That's what every single video from anywhere has shown to me... So why are you saying the floor beams collapsed if the top half of the building fell upon the lower?
Quote from what i said in my first post
Now you see, when a plane crashes into a building, it's bound to destroy some girders, columns, and beams. The destruction of these in itself may seem negligible compared to the whole building, but these elements will cause a change in the remaining structure's stress, strain, and force components, possibly making them unsafe now. The safety factor for the building code has probably been breached, or is near it's dangerous limit, and now once you have a plane with hundreds of gallons of gasoline ignited by fire, this temperature will affect a structure's no-longer-safe design. Like i said earlier, fire may not necessarily affect a perfectly free-standing, unaffected, and holeless steel building that has undergone meticulous engineering design, but in EVERY conspiracy video i've seen, people have failed to mentioned this point. Whether it be ignorance, or purposely leaving this out, i don't know.
Quote from what i said in my second post
And the ground floor's columns hold the most weight and undergo the greatest axial/shear stresses. Like i said in my first post, a building wasn't designed to withstand giant airplane crashes. So once you throw in that airplane, it's bound to mess up pretty much the entire building's stress, strain, and force measurements, thus making the design unsafe. In the realm of structural engineering, even the slightest tweak to a beam or girder on the 100th floor can drastically affect the mechanics of a beam or girder on the ground floor; every component of a structure or system is dependent of each other. The physical damage from the falling debris/airplane or the fire that burned for hours alone wouldn't necessarily cause the buildings to collapse, but once you combine these two elements, it can easily cause the ground floor's members to fail. Once the columns and walls cave in, so will the windows but since they are much more brittle than steel or reinforced concrete, they will shatter.
The floors where the airplane crashed apparently have taken physical damage so of course they will collapse. And when you are saying floor beams, you have to be more specific. Like are you referring to the girders and floor plates on the ground? On the 80-100th floors? Or do you actually mean columns which stand upright and hold the weight of the whole building? But anyways the issue i was addressing in the previous post was that the ground floor's columns and beams failed because as I've also mentioned, all members of a structure are dependent of each other (you can prove this through static analysis of all the beams and trusses throughout the structure). What was claimed by conspiracists is that the ground floors seemed to have simply "explode" and crumbled like as if it were a controlled demolition. The reason it seemed like that to an untrained eye is that the ground floor's members/columns/beams hold the most weight and have the greatest stress and strain acted upon them and so once you mess up the system's design, these are probably the first to fail by exceeding the safefy factor.
Hmmm... Doesn't this quote:
Any engineer will know that just slight temperature changes will affect a building's components.
basically state that A/C units, heaters, computers, etc.. can cause this 'thermal effect'? Well, using that logic and reasoning couldn't one say that a simple tempurature change within the building would cause a 'thermal effect' on the structure E.G. Someone changing the A/C a notch up/down?
....That's honestly what it sounds like to me.
The coefficient of thermal expansion for steel is 8.0*10^-6/degrees F or 14*10^-6/degrees C. Other materials like Glass have a 4.5*10^-6/degrees F or 8*10^-6/degrees C coefficent of thermal expansion (all of this can be found straight from any engineering mechanics text or even online). A few degree drops aren't going to do anything (if it does, then this has to be some weak ass shit material lol.) But when you have fire burning at 1200 degrees fahrenheit (this is straight from video 8 posted in the first link
), it's going to have an effect on the building, especially if you're dealing with long members/columns/beams. A 1/100th fraction of an inch in displacement/strain may not sound much, but trust me, it really does have a drastic affect.
And honestly, I really don't see why people debate this anymore, what use is there to it? For people to go google things and seem like they know what they're talking about? To talk crap on people who stick to their beliefs and opinions?
I don't know why people debate this anymore, but do note exactly what I am debating about. I'm only talking about aspects that deal with the physical/engineering nature of this conspiracy like the collapse/demolition of the buildings. Other things like "oh the government did this or that" or "Why didn't they prevent this or that in the past" or "Oh we are now waging war on countries that have nothing to do with 9/11" and all, I do not discuss.
None.
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