Analysis of Seismic Mitigation Elastic-Plastic Passive Control for Continuous Beam Bridge
Abstract eng: Two modes of elastic and plastic finite element models for continuous beam bridge are established. Linear viscous fluid dampers are set at the location of the kinetic bearings of bridge. Passive control seismic responses of the bridge are calculated under strong earthquake. Vibration-suppressed effectiveness of passive control for continuous beam bridge under elastic and plastic states is analyzed. The results indicate that the passive control with viscous fluid dampers can get good vibration-suppressed effectiveness for both elastic and plastic seismic responses of bridge. But vibration-suppressed effectiveness of dampers under plastic state is less than that under elastic state. Plastic passive control seismic responses of bridge are less than elastic passive control seismic responses with piers getting into plastic state under strong earthquake. The seismic mitigation control system of bridge designed with calculation of elastic mode can satisfy the requirement of seismic mitigation control with piers getting into plastic state.
Contributors:
Conference Title:
Conference Title:
14th World Conference on Earthquake Engineering
Conference Venue:
Bejing (CN)
Conference Dates:
2008-10-12 / 2008-10-17
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-12-05, last modified 2014-12-05
guest ::
