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
M/E/P Systems | Oct 30, 2024
After residential success, DOE will test heat pumps for cold climates in commercial sector
All eight manufacturers in the U.S. Department of Energy’s Residential Cold Climate Heat Pump Challenge completed rigorous product field testing to demonstrate energy efficiency and improved performance in cold weather.
MFPRO+ New Projects | Oct 30, 2024
Luxury waterfront tower in Brooklyn features East River and Manhattan skyline views
Leasing recently began for The Dupont, a 41-story luxury rental property along the Brooklyn, N.Y., waterfront. Located within the 22-acre Greenpoint Landing, where it overlooks the newly constructed Newtown Barge Park, the high-rise features East River and Manhattan skyline views along with 20,000 sf of indoor and outdoor communal space.
Resiliency | Oct 29, 2024
Climate change degrades buildings slowly but steadily
While natural disasters such as hurricanes and wildfires can destroy buildings in minutes, other factors exacerbated by climate change degrade buildings more slowly but still cause costly damage.
Office Buildings | Oct 29, 2024
Editorial call for Office Building project case studies
BD+C editors are looking to feature a roundup of office building projects for 2024, including office-to-residential conversions. Deadline for submission: December 6, 2024.
Healthcare Facilities | Oct 28, 2024
New surgical tower is largest addition to UNC Health campus in Chapel Hill
Construction on UNC Health’s North Carolina Surgical Hospital, the largest addition to the Chapel Hill campus since it was built in 1952, was recently completed. The seven-story, 375,000-sf structure houses 26 operating rooms, four of which are hybrid size to accommodate additional equipment and technology for newly developed procedures.
Sports and Recreational Facilities | Oct 24, 2024
Stadium renovation plans unveiled for Boston’s National Women’s Soccer League
A city-owned 75-year-old stadium in Boston’s historic Franklin Park will be renovated for a new National Women’s Soccer League team. The park, designed by Fredrick Law Olmsted in the 1880s, is the home of White Stadium, which was built in 1949 and has since fallen into disrepair.
Laboratories | Oct 23, 2024
From sterile to stimulating: The rise of community-centric life sciences campuses
To distinguish their life sciences campuses, developers are partnering with architectural and design firms to reimagine life sciences facilities as vibrant, welcoming destinations. By emphasizing four key elements—wellness, collaboration, biophilic design, and community integration—they are setting their properties apart.
Engineers | Oct 23, 2024
Navigating battery energy storage augmentation
By implementing an augmentation plan upfront, owners can minimize potential delays and unforeseen costs when augmentation needs to occur, according to Burns & McDonnell energy storage technology manager Joshua Crawford.
Adaptive Reuse | Oct 22, 2024
Adaptive reuse project transforms 1840s-era mill building into rental housing
A recently opened multifamily property in Lawrence, Mass., is an adaptive reuse of an 1840s-era mill building. Stone Mill Lofts is one of the first all-electric mixed-income multifamily properties in Massachusetts. The all-electric building meets ambitious modern energy codes and stringent National Park Service historic preservation guidelines.
MFPRO+ News | Oct 22, 2024
Project financing tempers robust demand for multifamily housing
AEC Giants with multifamily practices report that the sector has been struggling over the past year, despite the high demand for housing, especially affordable products.
