the twin towers(world trade centre)?

Question

even if where the building were hit by the planes the fires were hot enough to melt and change the integrity of the buildings what about all those levels below how did the core of the building all that metal structure just crumble did you see how fat those columns were and there were jost over 40 of them all connected in the structure how does that crumble down plumb in 10 seconds when it wasnt attacked by any heat even the weight of it couldnt do that ,i would of thought it was more likely the building would keel over have more resistence seriously who ever did it terrorists or what ever,it makes alot more sence there was exsposives in that building really does not add up for me,im not really into conspiracy theorys myself just looking at the video footage gives me alot of doubts.what ever your thoughts on who you think did it im not worryed at the minute im more worryed about what i see with my own two eyes any thougts people.

whatever gtoacp listen to what i said how could a steal structure like that just cruble the floor levels wouldnt even touch it there not structural ask anybody that erects metal buildings or that works with metal it doesnt add up.

love the fact yuckler spouted aload of crap i dont perticularly beleive in and he odviously didn read the question what a fukin idiot.

Answer 1

As steel is the primary material used for modern building construction, you can be sure this was the case at the World Trade Center. Furthermore, the steel didn't need to MELT to cause a catastrophic collapse, as so many conspiracy theorists seem to be obsessively arguing. As a firefighter with a biology degree, I may not be a physics or engineering expert, but this is what I see...

When exposed to heat, these steel members expand significantly, about 10 centimeters per 15 meters. This type of expansion occurs when a steel beam is heated from room temperature to about 538C. When used to construct a building, the ends will be fastened and restrained from moving. Due to this inability to expand outward, the steel beam will expand and then buckle somewhere in the middle - making it susceptible to implosion. They may even push out load bearing walls and cause a collapse in that manner.

Failure of steel structural members of all types is to be expected and anticipated at or above a temperature of 538C. The length of time of exposure to heat before a steel structural member fails depends on its size, composition, weight bearing load, and geometry. The non-uniform temperature distribution evidenced in the WTC could have and most likely would have increased the distortion of steel structural members

You can be sure this temperature was reached. Aviation fuel has an ignition temperature of 210C, and since the primary fire concern in a noncombustible building is its contents, the temperature only went up. Plastics and synthetics burn FAR hotter than natural fibers, with far more heat (read: ENERGY) release. So look around you. What is your computer made of? Your clothing? Your furniture? Carpet? Wall coverings? Most likely some mixture of natural and synthetic materials. A cotton padded chair has a maximum heat release rate of 370kW, or 350.7Btu/s. A Polyurethane foam padded chair (what's in your office?) has a maximum heat release rate of 2100kW, or 1990 Btu/s. That's Btu's PER SECOND!!! Far more heat. What is the most common material in an airliner's interior? Plastic. Again - synthetic, which translates to massive heat release rates. As a rate implies a unit over time - massive heat over a small amount of time can mean big trouble.

Cooling steel members can prevent them from failing by using the heat of vaporization to express some of that heat energy. Let me ask you this: Do you think the fire control systems were working in the WTC that day after the plane struck? Probably not on or above those floors! There fore, those members were not being cooled.

Now I'd like you to consider the actual IMPACT of a heavy jet. Some of the structural members were surely compromised. As I watched the footage LIVE, I saw a significant portion of the second plane continue through the South tower. It also took more than "10 seconds" for the towers to collapse. The North tower took 104 minutes to collapse after impact, and the South tower 47 minutes. More than a single member was compromised, and even in a building designed with redundant support systems, simultaneous compromise of several structural members increases the likelihood of collapse.

Have you ever been to the top of a skyscraper? They are essentially a large sail. One is actually able to feel the swaying motion. This a large consideration when engineering these buildings. When structural integrity is compromised, the building's ability to "roll with the tide" is also compromised.

So, to review: With a massive collision that compromises structural integrity, fire, inability to cool the area, and constant winds (even though that day was relatively calm), steel structural members didn't need to melt. They only had to reach 538C, and it is postulated by many sources to have reached about 700C. Each of these problems alone may not have caused the collapse, but together, we all know what happened.

I would like EVERYONE to remember one thing: A horrible tragedy occurred that changed our lives forever.... no matter where one comes from, we all lost some of our innocence that day. Many lost loved ones. Please remember THAT above all else. I wish you all the best life has to offer. ~TCD

Answer 2

There was little core structure, the strength was in the outer walls and when the fires from the planes fuel load weakened the structure the floors fell out and the overload on each floor as the one above collapsed onto it caused the chain reation.
I believe in conspiracy theories and I believe a bunch of muslims
conspired to knock the twin towers down using aeroplanes and their brothers celebrated with great gusto in Palestine and elsewhere when the towers came down.

Answer 3

what happened was when the planes hit the twin towers it comprimised the building and what happened was that the heat caused the bolts to fail and the beams that supported the concrete slabs gave away and then each floor crumbled. and when you add the weight of each floor it adds that much more weight to the next and the next and so on. so when they hit the buildings there was just no solution to it the buildings were doomed. hope this helps you

Answer 4

I would suggest you need to study engineering in college or at least read the report that explains your concerns.

Now let me think about this. Who has more credibility: a building engineer or someone who doesn't know steal from steel. Hmmmm. It doesn't make a lot of sense. Or is that sence. This is hard.

Oh, wait!!! You are into conspiracy theories!! In that case the truth is that it was Clinton who planned the whole thing. He was pissed that Gore lost the election.

Answer 5

on the footage of the twin towers, the first plane that hits has a missile attached to it this footage has now been illegalised in the US.

You can see this clearly but you have to slow it down, the missile hits before the plane does.

when george bush was told about the twin towers, in the classroom, he sat and pondered it for a while, he had to be told twice about the first plane hitting and 3 times about the second plane.

what kind of president sits and ponders the disaster that is happening around him, any normal man with NO connections to the terrorist attack or ideas that it was going to happen, would have got straight up apologised and said there had been an emergency, then he would have made a public announcement to the people about it, to calm them down, did he? NO

With regards to America i believe that everything in that country is one big conspriacy theory, do they ever tell the truth about anything, people say that america always does everything bigger and better YES because they LIE about it

Answer 6

Bloody Hell! I can see in 50 years time people saying it was all a myth just like the concentration camps were supposed to be a myth. It happened. The planes did it. A small fire from a buning cigarette could have achieved the same thing. Thats what fire does!

Answer 7

After over forty years, the Kennedy conspiracy is still unsolved.
In another forty years the 9/11 will be the same.A shocked and grieving nation has once again tumbled on too many inconsistencies in the explanations put out by their leaders

Answer 8

I have heard a rumour that there was 2 explosions that brought the towers down like you said they fell straight down and did not keel over at an angel

Answer 9

It was such a bad thing and a big moment in most of our lives. Its hard to get your head around it. And some people don't, hence the start of the theories.

But, in my opinion, yuckler's right and probably fed up with hearing them. Its just down to how we deal with things like this.

The theories won't help you achieve the answers you are looking for. And if they were true, would we really want to know.

Let those that died rest in peace, please.

Answer 10

read the 9/11 Commission report. it 'll answer lot of your questions. ok