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>Israeli team has fewer members so they learn to be 'small and swift' It is amazing to see how they work to save those people, at the same time terrifying to t

>Israeli team has fewer members so they learn to be 'small and swift' It is amazing to see how they work to save those people, at the same time terrifying to think how they got those experience with all those never ending wars throughout their lifetime. Salut to the team for helping those in grief. Also from wikipedia: >Distinct from possible construction defects, an analysis of European Remote-Sensing Satellite data by Florida International University indicates that the building had been sinking during the 1990s at a significant rate of about two millimeters (0.079 in) per year. While 97 percent of Miami Beach had been stable, 1,555 of 18,949 points in Miami Beach had been sinking, at a rate of less than one millimeter (0.039 in) per year. This is actually terrifying to hear

colordrops 5y ago
So about 2 inches. Is that enough to cause a collapse? I don't know enough to answer this question, but I would hope that buildings are engineered to handle at least a couple inches of sinking. My house in the hills has 2-3 inch variations after 70 years of existence, but admittedly it's not a high rise building.
- mellow-lake-day 5y ago
  It may have contributed to it but in this case the bigger problem was an error in the construction of the building: > In 2018, an inspection performed by the engineering firm Morabito Consultants showed a "major error" in the construction of the pool deck, whereby the waterproofing layer was not sloped. Water that collected on the waterproofing remained until it could evaporate. Over the years, the concrete slabs below the pool deck had been severely damaged by this water. The report noted the waterproofing below the pool deck was beyond its useful life and needed to be completely removed and replaced. > On June 30, WLS-TV in Chicago publicized a bystander's video of water pouring into the parking garage from above near its entrance, and apparent concrete rubble lying on the floor, apparently taken at 1:18 a.m., seven minutes before the north-central portion of the building collapsed. From here: https://en.wikipedia.org/wiki/Surfside_condominium_collapse#Possible_causes https://en.wikipedia.org/wiki/Surfside_condominium_collapse#...
  - pram 5y ago
    Wow that video is crazy https://abc7chicago.com/florida-collapse-video-miami-condo-tiktok-before-collpase-champlain-tower-south/10847025/ https://abc7chicago.com/florida-collapse-video-miami-condo-t...
- cma 5y ago
  If the whole building sank that much there might have also been bigger variations.

colordrops 5y ago

So about 2 inches. Is that enough to cause a collapse? I don't know enough to answer this question, but I would hope that buildings are engineered to handle at least a couple inches of sinking. My house in the hills has 2-3 inch variations after 70 years of existence, but admittedly it's not a high rise building.

mellow-lake-day 5y ago
It may have contributed to it but in this case the bigger problem was an error in the construction of the building: > In 2018, an inspection performed by the engineering firm Morabito Consultants showed a "major error" in the construction of the pool deck, whereby the waterproofing layer was not sloped. Water that collected on the waterproofing remained until it could evaporate. Over the years, the concrete slabs below the pool deck had been severely damaged by this water. The report noted the waterproofing below the pool deck was beyond its useful life and needed to be completely removed and replaced. > On June 30, WLS-TV in Chicago publicized a bystander's video of water pouring into the parking garage from above near its entrance, and apparent concrete rubble lying on the floor, apparently taken at 1:18 a.m., seven minutes before the north-central portion of the building collapsed. From here: https://en.wikipedia.org/wiki/Surfside_condominium_collapse#Possible_causes https://en.wikipedia.org/wiki/Surfside_condominium_collapse#...
- pram 5y ago
  Wow that video is crazy https://abc7chicago.com/florida-collapse-video-miami-condo-tiktok-before-collpase-champlain-tower-south/10847025/ https://abc7chicago.com/florida-collapse-video-miami-condo-t...
cma 5y ago
If the whole building sank that much there might have also been bigger variations.