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 .