RIO DE JANEIRO, Jan 26 (Reuters) - Rescuers on Thursday recovered three bodies from the rubble of three buildings that collapsed in downtown Rio, highlighting the creaky infrastructure of the city that will host the 2014 soccer World Cup and the 2016 Olympics.
The buildings, one 20 floors high, collapsed on Wednesday night in a cloud of dust and smoke just one block away from the city's historic Municipal Theater.
Rescue teams pulled six people alive from the rubble, but at least 16 people were still missing, authorities said. The buildings were mostly used for office space during the day and were almost empty at the time of the disaster.
Rio de Janeiro Mayor Eduardo Paes said the cause of the collapse could have been a structural failure caused by work being done on one of the buildings. He said there was no gas leak that could have caused an explosion.
"The work on one of the buildings could have been the cause. They could have bungled it. That's one hypothesis but it is speculation," Paes told CBN radio broadcaster. "We will investigate this fully, because it is not normal for a building to collapse," he said.
Rio is struggling to address concerns about its decrepit infrastructure, unreliable power supplies and deficient public transportation as it prepares to host global sporting events.
Construction and renovation of 12 stadiums for the soccer World Cup in 2014 is behind schedule and there is concern that Brazil's overcrowded and inefficient airports will be not able to handle masses of sports fans expected to attend the events.
The building collapses come months after an explosion apparently caused by a gas leak ripped through a restaurant in downtown Rio, killing three people and igniting more concern about the state of the city's infrastructure.
In recent months, Rio's inhabitants have had to deal with exploding sewer lines and landslides in the city's slums caused by heavy rain and deforestation.
The collapsed buildings had a bakery and an Itau Unibanco Holding bank branch on the ground floor and were near the headquarters of state-run companies such as oil giant Petrobras and development bank BNDES.
Witnesses said they heard the structures cracking and saw plaster falling before the buildings collapsed, causing panic in the streets and covering parked cars with dust and debris.
"It was like an earthquake. First some pieces of the buildings started to fall down. People started to run. And then it all fell down at once," a witness who identified himself as Gilbert told Reuters.
One man said he was on the 10th floor and ran down the stairs just in time to escape the collapse. BD+C
Related Stories
Building Team Awards | May 19, 2016
Chinatown library unites and serves two emerging Chicago neighborhoods
The 16,000-sf, pebble-shaped Chinatown Branch Library was built at the intersection of new and old Chinatown neighborhoods. The goal is for the building to unite the communities and serve as a catalyst for the developing area.
Building Team Awards | May 19, 2016
NYC subway station lights the way for 300,000 riders a day
Fulton Center, which handles 85% of the riders coming to Lower Manhattan, is like no other station in the city’s vast underground transit web—and that’s a good thing.
Market Data | May 17, 2016
Modest growth for AIA’s Architecture Billings Index in April
The American Institute of Architects reported the April ABI score was 50.6, down from the mark of 51.9 in the previous month. This score still reflects an increase in design services.
Architects | May 16, 2016
AIA and HOK partner to advance Design and Health Research Consortium
The groups' key priority is to identify and develop practice-focused opportunities for funded research, publications, and tools in the area of design and public health.
Senior Living Design | May 16, 2016
Perkins Eastman releases white paper on biophilic design in senior living
The paper highlights some of the firm's top projects that feature biophilic design, a sustainable architecture strategy that connects people with nature.
Architects | May 16, 2016
3 strategies to creating environments that promote workplace engagement
VOA's Pablo Quintana writes that the industry is looking for ways to increase engagement through a mix of spaces suited to employees' desire for both privacy and connection.
Architects | May 11, 2016
AIA to create a resilience curriculum for architects
The program will teach resilient design and decision-making on hazard mitigation, climate adaptation and community resilience.
Retail Centers | May 10, 2016
5 factors guiding restaurant design
Restaurants are more than just places to eat. They are comprising town centers and playing into the future of brick-and-mortar retail.
AEC Tech | May 9, 2016
Is the nation’s grand tech boom really an innovation funk?
Despite popular belief, the country is not in a great age of technological and digital innovation, at least when compared to the last great innovation era (1870-1970).
Sports and Recreational Facilities | May 6, 2016
NBA’s Atlanta Hawks to build new practice center with attached medical facilities
The team will have easy access to an MRI machine, 3D motion capture equipment, and in-ground hydrotherapy.