According to a team of federal investigators from the United States, additional evidence of significant corrosion and overcrowded concrete reinforcement in a condominium building in the Miami-Dade County area that collapsed in June, killing 98 people, has been disclosed.
As part of its inquiry of the Champlain Towers South collapse, the National Institute of Standards and Technology (NIST) stated Wednesday that it would launch a five-pronged examination under the direction of Judith Mitrani-Reiser.
“We are approaching this with an open mind, and we will investigate any and all possibilities that might explain what caused this collapse,” Mitrani-Reiser explained.
It will be possible to conduct a complete investigation thanks to the presence of a multidisciplinary team with expertise in structural and geotechnical engineering as well as materials science, evidence collection, and modelling, among other areas of expertise.
There is considerable corrosion where one column meets the building’s foundation, as shown in the video, and densely packed steel reinforcement in other portions of the building.
On July 23, firefighters officially declared their month-long search for bodies in the rubble of a collapsed condo complex in Surfside, Florida, a successful conclusion.
At the outset of their investigation into the cause of the condo building collapse, inspectors discovered evidence of water damage and structural corrosion so severe that the building’s owner association estimated the damage would cost $15 million to restore.
Dawn Lehman, a professor of structural engineering at the University of Washington, told the Miami Herald that corrosion on the bottom of the column was “astronomical.”
When the building collapsed on June 24, she claimed, the degree of corrosion should have been visible and documented as part of the 40-year inspection that was still in progress at the time.
“If there is so much rust, this should have been addressed sooner,” she stated emphatically.
She explained that the scans show beams, walls, and columns that look to be packed with steel reinforcing, which indicates that there may be potential problems.
“There is absolutely no reason why there should be so much bar congestion,” Lehman stated emphatically.
As Abieyuwa Aghayere, a Drexel University engineering researcher who analysed the video and also spoke with the newspaper, explained, the risk posed by “congested” vertical rebar in columns would have been co
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