Earthquake Resistant to Seismically Resilient, Diverging From the Disposable Building

Dr. Daniel M. Dowden, PE, SE

Modern seismic design codes focus on life-safety or collapse prevention for typical buildings, leading to structures that are severely damaged and/or difficult to repair after a design level earthquake. This performance objective has been in place for over half a century and is severely outdated. In recent decades, there has been a critical shift in development of alternative seismic force resisting systems (SFRSs) that promotes a change in paradigm from the disposable building performance objective of collapse prevention. Some of these technologies include structures with self-centering capabilities and replaceable structural fuses. The beneficial impacts these alterative SFRSs could have in densely urbanized areas can be realized by observation of the significant past socioeconomic losses that have occurred worldwide due to large earthquake events in recent decades. Accordingly, there is an increased awareness by owners and other stakeholders to consider rapid reparability and reducing downtime of structures post-seismic event. With the recent inclusion of performance-based earthquake engineering in current seismic design codes, this affords the opportunity and heightened motivation to design structures beyond the minimum performance objective of life safety. This talk will present an introduction to some of these seismically resilient SFRSs in promoting seismically resilient buildings structures.

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Thursday, November 14, 2019 at 5:00 p.m. to 6:00 p.m.

Dow Environmental Sciences and Engineering Building, 642
1400 Townsend Drive, Houghton, MI 49931

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