J. Shortreed, F. Seible, A. Filiatrault, G. Benzoni
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引用次数: 20
Abstract
The California Department of Transportation (Caltrans) has recently commissioned a Seismic Response Modification Device (SRMD) Test System, housed in the Department of Structural Engineering at the University of California, San Diego. This facility is being used to test and characterize various isolation bearings, dampers and lock–up devices scheduled for use in the seismic retrofits of several large California bridges. This state–of–the–art, six–degree–of–freedom seismic testing system incorporates many new concepts in earthquake simulation system design. The results of the initial shake–down characterization testing are presented, a model to predict the machine's inertial and frictional characteristics is developed, and the initial testing results of some SRMD isolation bearing specimens are presented.
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