FL Contractors Create Safety Task Force
The Associated Builders and Contractors of Florida recently announced that it has created an industry task force for building structure and safety discussions.
Developed as a result of the deadly building collapse in Surfside, Florida, the internal advisory panel of industry experts aims to play a critical role in discussions relating to building structure safety, according to the ABC of Florida.
“While we do not yet have all the facts of what caused the Champlain Tower to collapse, we know that the ongoing safety and integrity of older buildings will be a topic of discussion during the 2022 Legislative Session,” said Gary Griffin, ABC Florida Board of Directors Chairman. “We want to be a constructive part of any discussion moving forward and be ready and able to offer industry input and feedback in real time.”
According to reports, the ABC of Florida represents more than 2,000 member companies and is noted to be the largest commercial construction association in Florida, and the “Voice of Commercial Construction” in Tallahassee.
On the newly developed panel, Griffin concluded, “Safety education and quality control process have always been an important part of the culture for ABC and our member companies. We hope to provide industry input to our legislature and assure that we never see another tragedy like this again.”
Around 1:30 a.m. on June 24, part of the Champlain Towers South condominium in Surfside, Florida was reported to have collapsed. Made of up of three buildings, the towers were each 12 stories tall and contained 342 units.
That same day, more than 80 rescue units were reportedly on the scene. By Sunday, 35 victims were pulled from the structure with two more pulled from the rubble. Eleven of them were treated for their injuries.
A state of emergency was also declared on the day of the collapse, which allowed the Department of Homeland Security and FEMA to coordinate relief efforts at the scene, which also involved containing a fire within the debris. The following Saturday, Gov. Ron DeSantis and Surfside Mayor Charles Burkett turned their attention to the “sister building” to the tower that fell, noting that it was built with the same team. Residents in Champlain Towers North began being aided by FEMA to find temporary housing.
Crews also reported that day that fire had been diminished.
That Sunday, heavy equipment was sent to the scene to help manage the shifting debris after rescuers dug a 125-foot-long trench (20 feet wide and 40 feet deep) to add to the around-the-clock excavation effort.
In later reports, it was determined that the partial collapse had resulted in the death of 98 people.
The complex was built in 1981 by late developer Nathan Reiber and Nattel Construction, which is listed as inactive in state records. Since the collapse, media outlets and the City of Surfside have uncovered documents surrounding the structure’s condition. According to a 2018 engineering report from Morabito Consultants, the condominium had “major structural damage” to its concrete structural slab below the pool deck that needed “extensive repairs.”
At the time of the collapse, consultants also acknowledged that the building was in the early stages of a three-year renovation plan, which had started with roof work about six weeks prior.
NIST Investigation Plans
In August, the U.S. Department of Commerce’s National Institute of Standards and Technology announced its selection of a team of technical experts to investigate the partial collapse of the Champlain Towers South.
According to NIST, the technical investigation will be organized around specific projects that will seek to understand the full history of the building, including its design plans, construction, materials, modifications, site and environment, from its design to the moment of collapse.
The investigation team will be headed by Judith Mitrani-Reiser, Associate Chief of the Materials and Structural Systems Division in NIST’s Engineering Laboratory. In her role, Mitrani-Reiser will lead the development and coordination of statutory processes for making buildings safer.
Glenn Bell, Co-Director of the safety organization Collaborative Reporting for Safer Structures, and Co-Founder of the American Society of Civil Engineers' Technical Council on Forensic Engineering, has been assigned to serve as the team’s associate lead.
Other team leads and their projects include:
Throughout the investigation, the team is slated to provide regular updates on its progress, which will include public meetings with the NCST Advisory Committee, annual reports to Congress and progress reports. However, the NIST reports that it will not issue preliminary findings or conclusions before publishing a draft report for public comment.
In early investigations of the collapse, the Miami Herald brought to light that the 12-story condominium tower had had multiple, extensive structural flaws present since the beginning of the building’s life—about 40 years.
Reportedly, the plans that came from a firm that no longer exists specified structural columns that were too narrow to accommodate the necessary amount of rebar to support the building. This meant that contractors had to choose between inadequately attaching floor slabs to supports or putting extra steel into columns that were too small.
Most experts weighing in on the matter chose the latter, which is a recipe for air pockets that accelerate corrosion.
Among the speculation that was looking at how a partial collapse of a patio could have brought down part of a 12-story building, The Washington Post also brought together engineers, construction plans and a computer simulation to come to two main scenarios.
First, if the deck initially collapsed where it joined the building’s facade, that could have overloaded the already-thin columns, causing them to buckle. Second, if the deck remained attached to the columns as it kept collapsing, that would have caused the tugging and twisting on the columns and the surrounding beams, causing them to fall.
Regardless of the final cause, building codes and inspections are already being reformed—with some Miami engineers saying that they have been evaluating 30-50 properties a week.
The Champlain Towers South investigation will be the fifth investigation NIST has conducted using authorities granted by the 2002 National Construction Safety Team (NCST) Act. The Act reportedly gives NIST and its team the primary authority to investigate the site of a building disaster; access key pieces of evidence such as records and documents; and collect and preserve evidence from the site of a failure or disaster.
In addition, the Act also calls for NIST to issue reports and make recommendations to improve building codes and standards.
The NIST investigation into the partial collapse of the Champlain Towers South is projected to take years to complete.