Optical98 said:
Demented, that red beam is haunting, because we know once the east end of it lost it's footing, that huge unit took a long bite out of
the #4 units, pulling down everything in it's path.
I still think the HVAC & roof anchors caused this, why:
The roofing & roof anchors work had gotten to the area of the HVAC unit and the "bootleg" penthouse.
The roof anchors were being installed incorrectly (on 6" cantilever slabs where 8" was required on the remaining portion of building - who knows what they did when they got to the HVAC and Penthouse. I'm sure the roof anchor company and the inspector knows.
Morabito appears to have a relationship with the roof anchor company. Why would they install anchors prior to structurally stabilizing the building. Why did Morabito send that email to the city AFTER COLLAPSE. Roof anchors weren't even needed, you could repair with cherry pickers and scaffolding. They had a cherry picker to the roof after collapse.
The roof anchor testing note on the plane required 5,000 lbs (ultimate failure load) testing where typically 2,500 lbs (2x design load) is performed to minimize structural damage.
Roof anchor inspection (and most likely observation of testing) was less than 18 hours prior to collapse. I requested the inspectors notes from the inspection that day from the city but they replied saying they posted it - they hadn't.
Construction noises came from "above" first per 111. We know walls cracked from the ceiling downwards per 611.
The Penthouse & 12th-10th floors collapsed first and slowly floor by floor to floor 8 from 904 (this information is new and wasn't available when I originally posted my roof theory in part 1 of this forum.)
Portions of the roof, Penthouse, and 10th-12th floors falling onto the pool deck would have hit the backside of the damaged columns in the remaining building engineers on site after collapse suspected brought down the pool slab. It was damaged on the side opposite the lobby level parking across from x10 units and deformed horizontally.
Perhaps everyone is already aware of the roof anchors causing this and that is why the police have said that is a criminal investigation - they didn't have a roof anchor permit until less than 18 hours prior to collapse yet clearly had done a significant amount of work.
Standing buildings don't just fail, they almost always fail under unusual loading or during construction. The roof anchor work was the trigger.
Regarding water in the basement during recovery, water is going to get in when the pumps are turned off, there is no roof, and the perimeter walls are damaged.
-W