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
Sponsored | | Nov 19, 2014
Long-life coatings vs. long-life screws
Are you concerned with the long-life protection of your metal building project? SPONSORED CONTENT
Sponsored | | Nov 19, 2014
Fire resistive, blast-resistant glazing: Where security, safety, and transparency converge
Security, safety and transparency don’t have to be mutually exclusive thanks to new glazing technology designed to support blast and fire-resistant secure buildings. SPONSORED CONTENT
| Nov 19, 2014
Must see: Arup, Damian Rogers propose urban surf park in Melbourne
The surfing pool would offer 98-foot-wide waves that would run the length of the 500-foot-long enclave.
| Nov 18, 2014
Architecture Billings Index dips in October, still shows positive outlook design services
Headed by the continued strength in the multifamily residential market and the emerging growth for institutional projects, demand for design services continues to be healthy, as exhibited in the latest Architecture Billings Index.
| Nov 18, 2014
New tool helps developers, contractors identify geographic risk for construction
The new interactive tool from Aon Risk Solutions provides real-time updates pertaining to the risk climate of municipalities across the U.S.
| Nov 18, 2014
Grimshaw releases newest designs for world’s largest airport
The airport is expected to serve 90 million passengers a year on the opening of the first phase, and more than 150 million annually after project completion in 2018.
| Nov 17, 2014
Nearly two years after Sandy Hook, the bloodshed continues
It’s been almost two years since 20 first-graders were shot and killed at Sandy Hook Elementary School in Newtown, Conn., but these incidents, both planned and random, keep occurring, writes BD+C's Robert Cassidy.
| Nov 17, 2014
Hospitality at the workplace: 5 ways hotels are transforming the office
During the past five years, the worlds of hospitality and corporate real estate have undergone an incredible transformation. The traditional approach toward real estate asset management has shifted to a focus on offerings that accommodate mobility, changing demographics, and technology, writes HOK's Eva Garza.
| Nov 17, 2014
Developments in 3D printing can assist architecture in the smallest details
Researchers at the Department of Energy’s Oak Ridge National Laboratory (ORNL) have developed a way for 3D printed metals to be produced with an unprecedented degree of precision.
| Nov 17, 2014
A new BSL-3 public-safety lab debuts in Vermont
The laboratory will be used to perform a wide range of analyses to detect biological, toxicological, chemical, and radiological threats to the health of the population, from testing for rabies, West Nile, pertussis and salmonella to water and food contaminants.