Research at Case Western Reserve University has found that buildings that rock during an earthquake and return to plumb would withstand seismic shaking better than structural designs commonly used today in vulnerable zones of California and elsewhere.
Those buildings would also be more easily and cheaply repaired and could be put back into use faster, said Michael Pollino, an assistant civil engineering professor at Case School of Engineering. The computer model research suggests optimal sizes for damping devices and steel yielding devices that dissipate the energy of a quake.
Pollino’s model compares rocking steel-braced frames to current earthquake standards used in low- to mid-rise buildings. "Currently, engineers are designing low-rise structures for an earthquake that has a 10% chance of occurring in a 50-year-lifetime," Pollino said. "We accept there will be damage, but no collapse or loss of life. But what about an event that has a 50% chance of occurring? You may still have to tear the building down afterward.”
Pollino and other researchers are finding advantages to the design, which has not yet made it into practice. He and colleagues are discussing forming a technical committee of civil engineers that would advance the technology into practice. Pollino is now applying for funding to begin physically testing designs in the university's structures laboratory.
Related Stories
Engineers | Feb 16, 2017
ESD's founder, Hem Gupta, passes at the age of 85
A 53-year career included engineering work on several of Chicago's iconic buildings.
Architects | Jan 4, 2017
The making of visible experts: A path for seller-doers in the AEC industry
Exceptional seller-doers have the ability to ask the right questions, and more importantly, listen.
Building Team | Jan 3, 2017
How does your firm’s hit rate stack up to the AEC competition?
If your firm is not converting at least a third of project proposals when competing for new work, it may be time to reassess your marketing tactics and processes.
High-rise Construction | Oct 26, 2016
The world’s 100 tallest buildings: Which structural engineers have worked on the most?
The top firm has worked on almost one-fifth of the 100 tallest buildings in the world.
Engineers | Oct 17, 2016
Confidence in construction markets is high among U.S. engineering leaders: ACEC survey
The American Council of Engineering Companies’ third quarter Engineering Business Index rose 6.2 points to 63.3—the largest quarter-to-quarter increase since the EBI’s inception.
| Sep 26, 2016
RELIGIOUS FACILITY GIANTS: A ranking of the nation’s top religious sector design and construction firms
Gensler, Leo A Daly, Brasfield & Gorrie, Layton Construction, and AECOM top Building Design+Construction’s annual ranking of the nation’s largest religious facility AEC firms, as reported in the 2016 Giants 300 Report.
Architects | Sep 21, 2016
DLR Group broadens its practice range and market penetration with addition of Westlake Reed Leskosky
The merger, say company officials, creates “a global design leader” in a consolidating industry.
Architects | Sep 15, 2016
Implicit bias: How the unconscious mind drives business decisions
Companies are tapping into the latest research in psychology and sociology to advance their diversity and inclusion efforts when it comes to hiring, promoting, compensation, and high-performance teaming, writes BD+C's David Barista.
AEC Tech | Sep 6, 2016
Innovation intervention: How AEC firms are driving growth through R&D programs
AEC firms are taking a page from the tech industry, by infusing a deep commitment to innovation and disruption into their cultural DNA.
Office Buildings | Sep 2, 2016
Eight-story digital installation added as part of ESI Design’s renovation of Denver’s Wells Fargo Center
The crown jewel of a three-year makeover project, the LED columns bring the building’s lobby to life.
