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摘要:
In order to investigate isolator properties, vibration properties and isolated effect of continuous girder isolated bridges with lead rubber bearings (LRB) under multi-directional excitation, the simulated earthquake tests of a seismically isolated bridge model consisting of multi-span continuous deck are carried out on a shaking table under multi-directional earthquake input. The acceleration and displacement response trend of the deck and the pier-cap of the isolated bridge, and vertical force and horizontal force-deformation restoring force relationship of LRB are studied under unidirectional, bi-directional, and multi-directional earthquake input. Some reasonable and valuable conclusions are obtained for design of continuous girder isolated bridges.
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来源 :
Journal of Vibration and Shock
ISSN: 1000-3835
年份: 2008
期: 9
卷: 27
页码: 59-65
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