I haven't made a study of it but I think your vertical column theory is wrong.
WTC was renoun for it's LACK of an internal struture (vertical columns) holding it together. And it was FAMOUS for that unique structure long before 9-11, too.
The supporting verticle structure was the OUTSIDE WALLS of that structure
Horizon beams connected to the outerwalls to create the floors.
So when the building's horizonal beams lost their integrity (due to the extreme heat of the fires), so did those outer walls since they depended on the horizonal beams to maintain their stuctural integrity, too.
At least that is my understanding of why the bulding pancaked like it did.
You do realize that if the building had had the normal boxlike girder structure, in order for it to have collapsed the way it did, they'd have had to put timed charges at every floor level to achieve the collapse we saw, right?
Timed charges would have been needed on EVERY FLOOR and at every joint of the verticle columns, too.
Doe yiou seriously believe that they could have set the building with that many charges without somebody in the building not noticing that?
I mean really?
Dude you been listening to the these trolls here in this section too much,the 9/11 official conspiracy theory aploogists.simple as hell to set the charges in the towers without somebody noticing.In the prior months before 9/11 many workers reported hearing very unusual construction work going on they thought was very curious.They heard the sounds of dumpsters being moved around on the upper floors and loud construction work as well they found very curious.They also reported many power downs on the weekends in the prior months,something that was extremely unusual in the fact it had NEVER happened in the history of the towers existence.
This is a fact that the trolls here always ignore,that the employees did not have access to enter these rooms where construction was allegedly going on cause they were sealed off from being able to enter these areas.They had signs that said CONSTRUCTION AREA,KEEP OUT.so it was impossible for them to see what was going on.The workers also used service elevaters that to get to these rooms that the employees had no access to.the employees did not have the keys to get into these service elevaters they used.they could only use public elevaters which could not get into these rooms.
If you had done any research,you would KNOW that it was easy as hell to plant all those explosives in the towers without anybody noticing in the fact that Bush's brother Marvin Bush and his cousin Wirt Walker were in charge of the security for the towers in the prior months before 9/11.simple as hell to do it without anybody noticing.
Here watch this video.it proves beyond a doubt explosives brought the towers down.Nobody here has ever been able to debunk it despite what they come on here and say.also the little debris that WAS consficated by workers there,has been examined by physiscts and scientists from around the world and they found samples of explosives residule,thermite in them.Not to mention photographs show many of the steel columns melted which is impossible unless explosives were used since jet fuel and office fires cant reach temps hot enough to melt them.Also Nasa recorded temps FAR TOO HOT AND INTENSE to be that of office fires or jet fuel after being sprayed down weeks later.They found molten metal that you can see in the pics which is also IMPOSSIBLE due to jet or office fires.again watch this video and learn.this is a video that nobody here has ever been able to debunk that explosives brought the towers down.
[ame=http://www.youtube.com/watch?v=8n-nT-luFIw&feature=PlayList&p=2AD3F16FEEAC9BD9&playnext=1&playnext_from=PL&index=22]YouTube - 9/11: Total Proof That Bombs Were Planted In The Buildings![/ame]
Here that explosion at the beginning? that was an explosion that happened earlier in the day on bld 7.It was a mistimed explosion that people like those firefighters witnessed.These trolls here that you have been unwise to listen to,have convinced you with their lies they been telling.stop listening to their lies and start reading david ray griffins books.He has done an EXCELLENT job of doing what the 9/11 coverup commission did not do,research the case and not omit evidence and facts.He debunks the 9/11 commssion report and what NIST says in his excellent book DEBUNKING THE 9/11 DEBUNKING,an answer to popular mechanics and other defenders of the official conspiracy theory.