At the simplest level, a 110 story building cannot fall directly into its own footprint at freefall speed with resistance. With damage to the TOP of the building, that resistance would be there to the tune of 90 floors of concrete and steel. Fires at the top would cause a sideways collapse if ANYTHING. Never before in he history of skyscraper structure has a building fallen from fire. Especially one built specifically to withstand this kind of damage. The facades have been replaced around an intact frame.

Just look it up.