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
Architects | Jan 29, 2018
14 marketing resolutions AEC firms should make in 2018
As we close out the first month of the New Year, AEC firms have made (and are still making) plans for where and how to spend their marketing time and budgets in 2018.
AEC Tech | Jan 29, 2018
thyssenkrupp tests self-driving robot for ‘last mile’ delivery of elevator parts
“With driverless delivery robots, we could fill a gap and get spare parts from our warehouses to the jobsite faster,” said thyssenkrupp SVP Ivo Siebers.
K-12 Schools | Jan 25, 2018
Cost estimating for K-12 school projects: An invaluable tool for budget management
Clients want to be able to track costs at every stage of a project, and cost estimates (current and life cycle) are valuable planning and design tools, writes LS3P's Ginny Magrath, AIA.
Multifamily Housing | Jan 24, 2018
Apartment rent rates jump 2.5% in 2017, led by small and mid-sized markets
The average price for one-bedroom units increased the most.
Hotel Facilities | Jan 24, 2018
U.S. hotel markets with the largest construction pipelines
Dallas, Houston, and New York lead the way, with more than 460 hotel projects in the works.
Architects | Jan 24, 2018
Strong finish for architecture billings in 2017
The Architecture Billings Index concluded the year in positive terrain, with the December reading capping off three straight months of growth in design billings.
Architects | Jan 10, 2018
7 steps to ending a low growth cycle
Here are the top 10 marketing techniques as rated by high-growth firms and how they compare to their no-growth counterparts.
Big Data | Jan 5, 2018
In the age of data-driven design, has POE’s time finally come?
At a time when research- and data-based methods are playing a larger role in architecture, there remains a surprisingly scant amount of post-occupancy research. But that’s starting to change.
Multifamily Housing | Jan 4, 2018
Shigeru Ban’s mass timber tower in Vancouver gets city approval
The 232-foot-tall Terrace House luxury condo development will be the tallest hybrid wood structure in North America.
