5 year anniversary of Champlain Towers collapse approaching

[samhexum]

In a report made public on Monday, the National Institute of Standards and Technology concluded the partial collapse of Champlain Towers South was triggered in early June 2021 when two connections between garage columns and the condominium’s pool deck failed.

Investigators found that initial structural failure spread to other elements of the pool deck and street-level parking garage and caused cracks to grow over the span of a few weeks, eventually unseating the southern edge of the pool deck slab from its supporting wall, the report said.

As the pool deck’s concrete slab sagged and warped, the weight of the initial columns transferred to nearby columns “that were not strong enough to support them,” the report said. That caused a “progressive collapse.”

“When the pool deck slab broke away, it damaged two connections supporting that part of the tower,” the report said. “The failure then progressed through the Middle part of the tower, followed by the East part.”

Investigators said there was no particular event that prompted the partial collapse of the L-shaped building at 8777 Collins Ave. on June 24, 2021. Instead, they said, a host of design and construction defects, along with other decisions made over the 40-year life of the beachfront building, left it vulnerable.

https://apple.news/Aik3AIKwFSr2zSDEmb0iSXA

[TonyDown]

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