OMG that is heartbreaking.
It's all well and good if a structure sinks into fill over time...but that is assuming that the sinking is uniform at the building's entire footprint. If the sinking is uneven, if one corner or section sinks more than another, there will be massive structural trouble....a lot.And combined with the soil/sand recession of that one particular zone, the structural damage has evidently tipped the balance of the building. IMO
A Florida high-rise that collapsed early Thursday was determined to be on unstable land a year ago
The building ..... has been sinking at an alarming rate since the 1990s
USA TODAY
Underneath its foundation is sand and organic fill — over a plateau of porous limestone — brought in from the bay after the mangroves were deforested. The fill sinks naturally, and the subsidence worsens as the water table rises.
https://www.washingtonpost.com/climate-environment/2021/06/25/rising-sea-levels-condo-collapse/
It's all well and good if a structure sinks into fill over time...but that is assuming that the sinking is uniform at the building's entire footprint. If the sinking is uneven, if one corner or section sinks more than another, there will be massive structural trouble....a lot.
Yep. Exactly. Residents have been speaking of creaking, and structural cracks for quite a while.
I was reading an article yesterday where a lady told her brother (their father has owned an apartment there for 30 years, her brother and family lived in it) that the building is going to collapse one day.
ETA:
“She felt the building shake,” said Chi, a nurse practitioner. “Then everything collapsed.”
Chi said her sister-in-law, a psychologist, was taken to Ryder as well but that she did not know the whereabouts of her brother, an attorney. Chi said her father has owned the unit in Champlain Towers South for about 30 years, and that leaks were a chronic problem.
Between tearful cellphone calls in the hospital’s driveway and hugs with other family members gathered outside, Chi recalled an eerie premonition she had shared with her brother.
“The last time I was there, I looked at him and I said, ‘I am serious. This building is going to collapse.’ ”
https://www.miamiherald.com/news/local/community/miami-dade/miami-beach/article252324218.html
A one story wood frame house, sinking unevenly, will have sloping floors, crooked door frames, wall cracks etc.....I've seen it a lot in my area which has unstable land in several locations. I needed to shore up my previous townhouse...a marble would roll down the floor on its own.
But a 12 story building...with massive loads? It's inevitable it will collapse (IF uneven sinking is indeed the cause). If only....
It's a horrific tragedy for so many people, at 1:30 am no less when people are home and asleep.
I can't get it out of my mind.....all those poor people...and their families, loved ones.
So unimaginable that 159 residents are unaccounted for! Yet dogs haven't sniffed anyone in several days. There are probably not 159 who have additionally perished, but why haven't absentees notified friends or relatives or authorities? This collapse is known about globally. Frustrating! JMO
Getting caught up on the thread. Lots of great info here from our WS building pros! Your expertise is helping me understand what is logical in such a collapse.
It seems to me that if there were pets who survived, maybe next to their owners, that the rescuers would hear them first. I may have missed any pet reports tho. Maybe the building only permitted service animals.
Hoping they find a lot of owners absent due to this being their second home. Maybe they’re snowbirds, this is a vacation unit or something not lived in full time. That would reduce the expected loss of life.
Yes. So what pool is this missing woman speaking of? Being a resident, one would think that she knows where the pool is. Is there more than one pool?
https://www.washingtonpost.com/nation/2021/06/25/condo-collapse-search-for-survivors/
From her fourth-floor balcony, Cassandra Stratton, 40, was on the phone with her husband as she watched the pool cave into a crater in the ground and felt a deep tremor in her apartment, her older sister Ashley Dean said. In a moment, the line cut off.
“She screamed bloody murder and that was it,” Dean said Stratton’s husband told her.
IMO if she saw anything at all, it must have been before the first (middle) part of the building came down, otherwise she would have only seen a cloud of dust. Maybe she was in the middle part with a good view of the pool deck. But we don't know if it all started there. The closest part of the building is still standing. I wonder for how long the building was shaking before the first part collapsed.
Champlain Towers South resident survives by climbing through rubble in the dark with her dog
“I was one of two I think that survived on my floor,” Schechter said.
Not knowing whether or not all of her neighbors made it out has been haunting her. She said she called one of the neighbors who lived on her floor but he didn’t pick up.
The inspection report of 2018 is alarming, but the photos "appear" to my absolutely untrained eye to be relatively minor issues, although they need fixing. As in, some concrete falls off the bottom of the balcony. Bad, but impending catastrophe? Cracks in the walls - again, bad, but impending catastrophe?
The NYT and the Washington Post reports both say the plans for correction had been approved and work was scheduled for this year. There would have to be documentation of this in the owner / HOA records and of approval of funds for the repair.
I have to think, as in all remodel/ repair projects, there would be far more severe damage found when the contractors actually started ripping the damaged concrete off of there.
However, should they have found clear evidence of impending failure, I wonder how fast they would have been able to actually get the condo owners to understand they had to move out of their units for the forseeable future until the scope and cost of repair was finalized. I have to think the entire process would have taken so long and been so stunningly expensive that this would not reasonably been fixed before collapsing.
As they say, it's complicated.
But this has to be a horrible warning to older high-rise buildings at seashores around the world. Think of Waikiki Beach in Hawaii - I'm pretty sure some of those buildings are at least 30 years old and up to 50 stories tall!