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
| May 24, 2018
Accelerate Live! talk: Security and the built environment: Insights from an embassy designer
In this 15-minute talk at BD+C’s Accelerate Live! conference (May 10, 2018, Chicago), embassy designer Tom Jacobs explores ways that provide the needed protection while keeping intact the representational and inspirational qualities of a design.
Sponsored | | May 24, 2018
Water treatment facility renovation benefits from laser scanning technology
Architects | Mar 9, 2018
Designing healthier buildings: Fitwel certification system
The Fitwel certification system is relatively simple and involves registering a building on a custom scorecard.
Engineers | Mar 6, 2018
Modeling elevates engineering design
When modeling is applied to engineering systems, the same benefits can be realized by both our project teams and clients.
Office Buildings | Feb 13, 2018
Office market vacancy rate at 10-year low
Cautious development and healthy absorption across major markets contributed to the decline in vacancy, according to a new Transwestern report.
Architects | Feb 8, 2018
Three ways cities could evolve 2018
Cities change constantly, but given the numerous disruptive factors spanning technology, policy, climate and more that will impact 2018 – it could prove to be a year of dynamic change for our urban fabric.
Engineers | Feb 5, 2018
Magnusson Klemencic Associates promotes six
MKA announces 2018 Senior Principal and Principal promotions as individuals continue to raise the bar and heighten industry expertise.
Healthcare Facilities | Feb 1, 2018
Early supplier engagement provides exceptional project outcomes
Efficient supply chains enable companies to be more competitive in the marketplace.
Industry Research | Jan 30, 2018
AIA’s Kermit Baker: Five signs of an impending upturn in construction spending
Tax reform implications and rebuilding from natural disasters are among the reasons AIA’s Chief Economist is optimistic for 2018 and 2019.
Market Data | Jan 30, 2018
AIA Consensus Forecast: 4.0% growth for nonresidential construction spending in 2018
The commercial office and retail sectors will lead the way in 2018, with a strong bounce back for education and healthcare.
