Jacqueline Conciatore

Seismic Risk? Research Addresses Dangers of Older Concrete Buildings in U.S.

Yahoo! News (reprint from LiveScience.com) | June 16th, 2015 | Article

In the heart of the worst U.S. earthquake zones, an alarming number of older, low-rise concrete buildings have not been retrofitted for earthquake safety. These two-story to five-story structures may meet the building-code standards of their day, but that day is long past. Today's building codes reflect later earthquake engineering research and incorporate structural elements that allow concrete buildings to bend and stretch a bit during an earthquake. Older designs lack those details. 

"There are hundreds of thousands of buildings that have not been retrofitted that ... are very dangerous," said structural engineer Reginald DesRoches, chair and professor in the School of Civil and Environmental Engineering at Georgia Tech. 

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