Abstract
This paper presents the maximum deformation capacity and energy dissipation capacity of U180-type lead damper used in seismic isolation system. Dynamic and static tests were carried out by the use of actual size damper and 1/4-scaled model. From these experimental results, the ultimate capacity of lead damper was clarified as follows : a) Maximum deformation capacity was over 60 cm. b) Energy dissipation capacity was about 10 times the design requirement. c) Ultimate capacity was approximately predicted by the experimental results of the scaled model.
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