Not my area of expertise by any means, but def interesting. Thanks.
That song is haunting as heck.
I've worked in construction most of my life so I appreciate the amount of engineering that goes into large buildings. This to me is inexplicable by poor engineering. Certainly not like this with zero warning signs. Also, eyewitness reports of late night work crews on site before the collapse. Only time there is legitimate night work going on is when it can't be done during normal day shift which would only be noncritical changes not involving the load bearing structure. Anything major would involve inspectors, shutting down all or part of a building and mostly done during normal work hours.
Thank you for your experienced assessment.
Please note: This is not an educated opinion. Merely observational. To put together such a structure engineers test materials and structural designs, get approvals based on those designs, while at the job site inspectors verify the work done while often taking samples of material at the site and taking photographs. When I do welding on something as simple as a petroleum tank a crew will come out and pass nuclear radiation through critical joints onto a photograph film. Results are saved for the record. Somewhere there are extensive files and documents on this structure. It's inconceivable to me that this structure failed in this manner due to shoddy construction. It's just not plausible.
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