"or having any major fires?"
Better check on that one. There was a major fire on Floor 5 (I think) due to tenant's backup generator diesel tanks, plus a huge diesel tank on a lower floor that pumped diesel up to Floor 5.
The fire burned out of control for hours, and firefighters made no serious attempt to extinguish it, they had bigger fish to fry.
The melting point of the steel is approx. 2700 degrees....how hot can diesel fuel burn?