Abstract
A sliding isolation scheme is presented for the seismic isolation of buildings. The isolation system includes Teflon/stainless steel pads and rubber. Tests were done to evaluate the friction coefficient between Teflon and stainless steel pads. In order to obtain the dynamic behavior of a sliding isolated masonry building, six-storey sliding isolated masonry models were compared on a simulated earthquake shaking table. A simple multi-storey numerical analysis model was also established to calculate the seismic response of a sliding model. In numerical analysis the bilinear restoration curve of sliding bearings is derived from the bearing tests. The experimental and numerical results show that a sliding isolation scheme can reduce the seismic response efficiently. The numerical analysis results approximated the experimental results. Two new methods are suggested in the paper to control the maximum displacement of an isolated building. Experimental hysteresis curves reveal that the maximum displacements of isolated bearings can meet the expected values.
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