Architect Butch Grimes, who examined the wreckage after a half-mile tornado struck Tuscaloosa, Ala., believes toughening building codes can reduce damage from twisters.
“The damage we had on the edges [of the tornado] could have been avoided with simple construction techniques,” Grimes told Scientific American.
The strongest hurricane winds on the coast can reach 180 mph, while the strongest tornadoes, category EF-5, have wind speeds of 200 to 250 mph. Tornadoes that strong are rare, with more common lower-category EF-2 or EF-3 tornadoes having wind speeds in the 100- to 150-mph range. The lower wind speeds, around hurricane strength, are most common on the edge of tornadoes.
“It’s probably not practical to design for EF-5 damage,” Grimes said. Weaker storms, however, can and should be designed for as coastal areas have been doing for years, he said.
Hurricane clips are one potential quick fix. In Alabama, the clips are required for buildings built within 5 miles of the Gulf of Mexico but remain optional farther inland. Reinforced windows could be another effective measure.
(http://www.scientificamerican.com/article/tornado-survival-could-improve-with-better-building-codes/)
Related Stories
| Jul 31, 2014
Cambridge, Mass., is latest locale to require energy usage disclosure
The City Council of Cambridge, Mass., approved the Building Energy Usage and Disclosure Ordinance (BEUDO) that requires benchmarking and disclosure of building energy performance for large commercial, institutional, and multifamily buildings.
| Jul 31, 2014
Stalled $1.5 billion Miami mixed-use redevelopment project advances
A long-delayed $1.5 billion mixed-use development in Miami moved ahead after city planners approved the project’s first phase.
| Jul 30, 2014
USGS updates National Seismic Hazard Maps
The U.S. Geological Service recently released an update of U.S. National Seismic Hazard Maps that reflect the latest analysis of where future earthquakes will occur, how frequently they may occur, and their strength.
| Jul 23, 2014
Fairfax County, Virginia toughens green standards
The Fairfax County Board of Supervisors recently strengthened its green building policy, requiring higher standards for residential, retail, office and other construction projects seeking approval for rezoning.
| Jul 23, 2014
Berkeley National Lab’s FLEXLAB is a test bed for energy efficient office design
FLEXLAB, short for the Facility for Low Energy Experiments, opened this summer at the Lawrence Berkeley National Laboratory.
| Jul 23, 2014
House passes 2015 GSA budget with 17% cut for new construction projects
The General Services Administration’s construction budget for fiscal year 2015 passed by the House this month includes cuts in both new construction and renovation/repairs compared to 2014.
| Jul 16, 2014
Coastal flooding increasing along East Coast, says report
An analysis of tidal levels and flood data by the news organization Reuters concludes that flooding has increased along the Eastern Seaboard over the past four decades.
| Jul 16, 2014
Local hiring requirement a tough challenge for new Detroit arena project
An agreement for a land transfer from the City of Detroit to Ilitch Holdings Inc., that enabled construction of a new arena for the Detroit Red Wings requires that 51% of the project’s construction workers must come from the city.
| Jul 16, 2014
Local hiring requirement a tough challenge for new Detroit arena project
An agreement for a land transfer from the City of Detroit to Ilitch Holdings Inc., that enabled construction of a new arena for the Detroit Red Wings requires that 51% of the project’s construction workers must come from the city.
| Jul 16, 2014
Massive $6.5 billion Silicon Valley development gets key city approval
The Santa Clara (Calif.) City Council approved the next steps for a massive development project next to Levi’s Stadium, the new home of the San Francisco 49ers.
