多年冻土区桥墩抗震性能研究

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Abstract Numerical simulation is made on infinite media. A viscous-spring boundary is used for simulating infinite boundary condition. The seismic responses of multifarious piers are calculated by finite element method in various grounds under various earthquake wave. The influence of frozen earth layers is analyzed. The results indicate that the stresses of piers are related to factors such as frozen earth layers，earthquake characteristics and pier property，and these factors should be considered in aseismatic design of structures.

Key words： soil mechanics pier earthquake permafrost region radiant damps

Received: 02 March 2003

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https://rockmech.whrsm.ac.cn/EN/ OR https://rockmech.whrsm.ac.cn/EN/Y2003/V22/IS2/2682