What were the causes of the collapse of the building in Miami: more experts continue to join the investigation.

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source: www.nytimes.com

Ron DeSantis and Daniella Levine Cava promised this Friday that there would be a complete and exhaustive study to determine the reasons that caused the collapse.

Engineers and architecture who have been working hard to determine the causes of the building collapse in Florida said it could take a long time to rebuild the tracks to find out why there was a partial collapse of the Miami condo.

However, experts have assured that some data they have been working on to conclude: corroded components, an undermined foundation, or defects in the building, both in construction and in design.

"When a building collapses on its own, sometimes its support is lost," said Abiwa Agahir, a professor of civil, architectural and environmental engineering at Drexel University.

The Champlain Towers was about to undergo a series of repairs for damages such as corrosion and deterioration in the paint walls, among others. All this is part of a structural rectification that is customary to be done when buildings turn 40 years old.

Due to its location so close to the sea, ocean salts can penetrate structures and begin to rust steel components, particularly reinforcing bars that may be poorly protected.

But other factors could make a building vulnerable to collapse. Charlie Danger, who retired as Miami-Dade County's construction chief seven years ago, said an unauthorized remodel could result in the removal of a structural support column.

In addition, some experts, such as Aghayere, said that a sinkhole or other problems with the foundation could cause significant instability under a building.

The governor of Florida, Ron DeSantis, and the mayor of Miami-Dade County, Daniella Levine Cava, promised this Friday that there would be a full investigation to determine the causes of the collapse.

"We need a definitive explanation of how this could have happened," DeSantis said.

Federal investigators are already hard at work at the site. The National Institute of Standards and Technology, which investigated the fall of the World Trade Center on September 11, sent a team of experts to Florida Friday afternoon to meet with local construction officials and engineers.

Sissy Nikolaou, an expert in geotechnical engineering who is part of the federal team, will study the design of the building to determine if it had modifications over time and to know what happened before the collapse. He assured me that the group's first visit could last about a week.

"We have to understand the landscape of a disaster," Nikolaou said.

Some researchers have found, thanks to the use of special radars that serve to determine potential floods in the Miami Beach area, that long before the collapse occurred, the tower was already sinking, which was not the case with the buildings that were to the surroundings.

"I was surprised," said Shimon Wdowinski, an environment professor at Florida International University. "I didn't expect to see movement there. That is a regular part of the city. "

In addition, Wdowinski said that other areas register even more significant subsidence. Yet, no collapsed buildings have been reported, as happened with the Champlain Towers.

In the past, some tenants of the building had already been filing some complaints attributed to the lack of maintenance in the facilities, such as floods, strong vibrations from nearby buildings, etc.