Research Center : École de Technologie Supérieure
Researcher : Dr. Lotfi Guizani, PhD, Eng., from the Department of Construction Engineering
Seismic base isolation with fretted bearings is an appropriate solution for most structures in zones with a moderate level of seismicity, like most regions of Quebec. However, the inherent damping rate in fretted bearings is very limited (around 5%). Therefore, this research project aims to study different methods to improve the damping rate of the fretted bearings in an efficient, economical, and environmentally safe manner.
Evaluate the hysteretic characteristics of ordinary fretted bearings utilized in the Champlain Bridge
Develop alternatives to improve the damping rate of the fretted supports and validate numerically and experimentally
40 months (the project started on January, 19, 2021)
Location: approach span (reinforced concrete structure)
Element type: fretted bearings at abutments and piers