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
Codes and Standards | Feb 12, 2015
New Appraisal Institute form aids in analysis of green commercial building features
The Institute’s Commercial Green and Energy Efficient Addendum offers a communication tool that lenders can use as part of the scope of work.
Office Buildings | Feb 12, 2015
Is Houston headed for an office glut?
More than 13 million sf could be completed this year, adding to this metro’s double-digit vacancy woes.
Modular Building | Feb 12, 2015
New shipping container complex begins construction in Albuquerque
The Green Jeans Farmery already has a hydroponic farm component courtesy of owner and entrepreneur Roy Solomon.
Transit Facilities | Feb 12, 2015
Gensler proposes network of cycle highways in London’s unused underground
Unused tube lines would host pedestrian paths, cycle routes, cultural spaces, and retail outlets.
Healthcare Facilities | Feb 11, 2015
Primer: Using 'parallel estimating' to pinpoint costs on healthcare construction projects
As pressure increases to understand capital cost prior to the first spade touching dirt, more healthcare owners are turning to advanced estimating processes, like parallel estimating, to improve understanding of exposure, writes CBRE Healthcare's Andrew Sumner.
Transportation & Parking Facilities | Feb 11, 2015
11 of the nation’s best ‘Complete Streets’ policies of 2014
Austin, Texas, and Troy, N.Y., are among the cities with the strongest safe streets policies, according to a new report.
Sponsored | Roofing | Feb 11, 2015
New school blends with local architecture using Petersen metal roof
Perkins Eastman in Stamford, Conn., designed the school to emphasize and integrate the International Baccalaureate curriculum throughout.
Mixed-Use | Feb 11, 2015
Developer plans to turn Eero Saarinen's Bell Labs HQ into New Urbanist town center
Designed by Eero Saarinen in the late 1950s, the two-million-sf, steel-and-glass building was one of the best-funded and successful corporate research laboratories in the world.
Architects | Feb 11, 2015
Shortlist for 2015 Mies van der Rohe Award announced
Copenhagen, Berlin, and Rotterdam are the cities where most of the shortlisted works have been built.
BIM and Information Technology | Feb 10, 2015
Google's 3D scanning camera leaves the lab
Google is said to be partnering with LG to create a version of the technology for public release sometime this year.