The Application of Seismic Isolation to Bridgesby Ian G. Buckle, Dynamic Isolation Systems Inc, United States,
Ronald L. Mayes, Dynamic Isolation Systems Inc, United States,
Document Type: Proceeding Paper
Abstract: Unlike a building application the primary intent in a bridge is to protect the structure below the plane of isolation - the superstructure being relatively rigid to in-plane loads and of adequate strength to resist these loads. Bridges are particularly suitable for isolation and literature surveys indicate that more than 90% of the world's isolated structures are, in fact, bridge structures. Applications include both new construction and retrofit work. Implementation within the United States has only occurred within the last few years and then predominantly as a retrofit measure rather than in new construction. This activity is reviewed in this paper.
Subject Headings: Bridges | Construction management | Seismic tests | Seismic effects | Base isolation | Bridge design | Seismic design | Rehabilitation | Load and resistance factor design | North America | United States
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