Abstract
Recently a new bridge system has been proposed, which performs cost reduction of the substructure and bearing supports and improves seismic performance by separating superstructure and substructure practically during earthquake. Super low friction sliding bearing used in the bridge has characteristics of only 2% coefficient of friction in velocity of 2m/sec, and this friction is one tenth comparing to conventional sliding bearing. This study clarified the effectivement of this system by shaking table test of model girders, and investigated the restriction method of displacement of superstructures using the combination of sliding supports with different friction coefficients and girder end dampers.
