Here is the original interview with the person who made it out of 111 that @Spartan5 mentioned, He doesn't say where he ran toward but sounds similar to what the lady said on the phone (412) that the 'pool/lobby's deck may have been the initiating failure...
@dold <
Looking at the video it appears that the column on grid I/9.1 was the first to go, although I can't see the interior columns to the north.>
This is exactly the column that stood out to me.... It kinda looks from aerial that it could be where the planter was located 🤔 extra load and...
@epoxybot that is very typical construction in S Florida, main structural system is concrete slab/columns/beams, shear walls at cores. Most of the masonry is "infill" only
@JoelTXCive right on the money.. never a single issue. Sinkholes are unlikely in South Florida and that building is surely pile supported just like 95% of structures along the coast.
Here is some additional information, including name of firm doing the 40-year certification in link below...
One news source has said there may have been concrete restoration ongoing - thinking if they chipped too much or more than one column at once without proper shoring, combined with the "weak story" in the lobby where it is likely columns shifted locations....
So sad and tragic that I can't wrap...
Looking through recent sales - the finishes in the common areas and the units are pretty high-end, I would guess than any signs of on-going settlement would easily reflect on the marble floors and floor to floor windows...
Very brief observations based on what is known so far:
1. @FoxSE14 - Hopefully local PE's are staying cautious and don't want to speculate. Although I did hear an FIU professor answer a few (not so great) questions of a local reporter.
2. There was one level of underground parking - this is...
Thank you - SAFE does not perform the nonlinear iteration by default - you have to find the combinations causing the uplift, then convert them into non-linear load cases. Then it iterates and converges. It has to be a combined load case. Not the most straight forward but I think I figured it out.
I know there is eccentricity and expected the initial tension - I am asking why SAFE calculates it if it's supposed to be set to "compression only" - why doesn't it just say ZERO? It's a program question more than a design question.
I've read a few threads regarding this, and can figure out for singly reinforced sections, but is there a limit to how much steel a beam can have and how much compression steel you can add to balance? And can someone guide me to where I can find this limit and how to calculate it?
Read this...
