reply to post by jambatrumpet
Please explain to me how damage to the top third of a building causes the complete structural failure of all of the floors below it...what,
they weren't designed to sustain the weight of the floors above them?
No , the floors were not designed to support the weight of the floors above them .
Just in case you seriously don't know how the towers were constructed , and taking into account that your question might be sincere , I will explain
it to you .
The columns supported the floors , the floors did not support the columns . The floors also did not support the successive floors above them .
Put another way , each individual floor was fastened to the perimeter columns and core columns . The next higher floor was fastened in the same manner
. The columns did not set on top of each floor , the floors did not set on top of the columns . The floors were attached to the sides of the columns
So , airplane crashes into building at floor "P" , thereby damaging floor "P" and floor "Q" above it , and floor "O" below it .
Fires break out and the columns at floors O , P , and Q are weakened . Keeping in mind that the perimeter columns were held in an upright position
only because they were attached to the floor structures , which were in turn attached to the core columns .
Floors O , P , and Q are damaged and sagging from the damage due to the impact . Those floors have been disengaged from the perimeter columns so ,
critical support is now taken away from those columns , the same columns that relied on the floor structures to maintain them in the vertical position
Add to this the massive fires that are now heating those columns to the point of severe stress from the remaining floors above that they are
supporting . The combined weight of those higher floors are now , along with the fire , causing those columns to bow , because floors O , P , and Q ,
are no longer attached to the columns , no longer helping to hold those columns in the upright position .
The fires finally take a toll on those columns , causing them to buckle under the weight of the higher building structure . Everything above the
impact point comes straight down onto floor O . There is absolutely no way anyone can seriously expect that floor O would support all of that combined
weight crashing down onto it .
Floor O breaks free from it's supports with all of the higher floors riding on top of it . All of this weight then crashes down onto floor N , then
floor M , then floor L ... all the way to the bottom .
Meanwhile , the columns are now being thrown out and away from the tower because there is nothing to hold them in an upright position . The inside of
the towers were actually falling faster than the outside of the towers . Once the inside collapse initiated , there was absolutely nothing to hold the
outside in place .
A little lengthy but , I hope I made it simple enough to understand .
You can choose to consider it or you can reply to me in the typical truther fashion . It's your choice .