198. DUCTILE BASE CONNECTIONS FOR THE REDUCTION OF SEISMIC DEMANDS

Department: Structural Engineering
Faculty Advisor(s): Tara C. Hutchinson

Primary Student
Name: Christopher Anderson Trautner
Email: ctrautne@ucsd.edu
Phone: 781-608-5184
Grad Year: 2016

Abstract
Although base isolation has become the preeminent method for protection of building structures during earthquakes, the high cost of such systems puts them out of reach for typical buildings such as residences, office buildings, and other "every-day" structures. There is a pressing need for economical systems that can reduce the severity of damage suffered by typical structures in large earthquakes, making communities more resilient to these dangerous natural disasters. The use of specialized ductile base connections is a promising method that can significantly reduce seismic damage while requiring a minimal cost premium over traditional construction practices. These connections allow uplift, facilitating dynamic motion of the structure in a benign rocking mode, instead of typical damaging sidesway modes. Dynamic shake-table testing of ductile-base systems has indicated the potential for nearly damage-free performance, reducing residual structural drift by over 90% compared to traditional structures in the most intense motions. The proposed system has potential applications in the seismic protection of buildings, industrial structures, and critical equipment.

Industry Application Area(s)
Civil/Structural Engineering | Materials

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