I trust you saw the lobby pictures Where it looked like a bomb went off.
Lets see, the building swayed several feet both directions, I guess the glass and cladding couldn't handle it. You also know that an elevator landed in the lobby and it was so gruesome, one of the Naudette brothers wouldn't film it.
Just where did you expect the over 6 foot sway of the buildings from the impacts went to, did it stop at the floor below the plane impact zone? Of course not, the energy was such that the whole building swayed probably starting in the basement and then swayed back.
Did you not read of numerous survivors trying to open doors that had been sprung due to the deflection and twisting motion from the plane?
Ever hear of the meteor? Look it up, it is several floors compressed together.
If your sources are Richard Gage, David Ray Griffin and Dylan Avery, I'm surprised their enormous brain power hasn't solved the hot fusion problem yet instead they're wasting time on WTC conspiracies; unless it's for publicity but that would be cynical of me. If you are getting ANY info from Dylan Avery, then what are you thinking? Is he an engineer, architect, structural engineer, explosives expert or a demolition expert, no, if you listen to him, he sounds vacant, like his beliefs.