ABSTRACT
ABSTRACT Stochastic seismic response analysis and reliability assessment of a base-isolated structure with sliding hydromagnetic bearings are performed combining the probability density evolution method and the stochastic function model of seismic ground motions. The reliability assessments are based on the extreme value distribution of the inter-story drifts of the base-isolated structure. Compared with the responses of the base-fixed structure, the superstructure of the base-isolated structure almost behaves like a rigid body. The sliding hydromagnetic bearing is efficient in reducing the responses by one degree of seismic intensity. Finally, the dynamic reliability of the base-isolated structure is evaluated, which provides an index for decision making in practice.
