This paper presents the contents of shaking table test conducted to confirm the capability of the suspended pendulum isolation (SPI) system installed on the base of main structures in reducing the seismic response of fixed mounted nonstructuralsystems. As compared to the results of the reference fixed structures it was found that the utilization of SPI system produced the significantly low acceleration amplification factors of supported nonstructural systems. The SPI system also gave therelatively constant amplification factors along the natural period of nonstructural systems and over the various input ground excitations. Comparison between the experimental results and two nonstructural design stipulations of 1997 Uniform Building Codeand 1997 Building Center of Japan is also conducted to show that the horizontal force coefficients of nonstructural systems mounted on isolated structures are sufficiently lower than the maximum provided design values.
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