Seismic Performance of Isolated Bridges Under Beyond Design Basis Shaking
Claudio Sepulveda,
Ricardo Bustamante,
Gilberto Mosqueda
Abstract:Seismically isolated highway bridges are expected to provide limited service under a safety evaluation-level ground shaking with minimal to moderate damage. The behavior under shaking beyond design considerations, corresponding to a large return period seismic hazard, is not well understood and could induce significant damage. In these rare events, the seismic isolation system can be subjected to displacement demands beyond its design capacity, resulting in failure of the bearings, exceeding the clearance and … Show more
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