Table 1.
The selected strong motion records.
Table 2.
The CV of PGA for strong motion records.
Fig 1.
Distribution of magnitude and epicentral distance for 1217 strong motion records.
Fig 2.
The analytical model for the elastic-plastic response spectra.
(a) The analytical model, (b) The bilinear force-deformation relationship.
Fig 3.
Displacement response spectra.
(a) Class Ⅰ, (b) Class Ⅱ, (c) Class Ⅲ.
Fig 4.
Displacement response spectra in different site conditions.
Fig 5.
Displacement response spectra in different earthquake types.
(a) ClassⅠ, (b) Class Ⅱ, (c) Class Ⅲ.
Fig 6.
Displacement response spectra in different parameters of Bouc-wen model.
(a) ClassⅠ, (b) Class Ⅱ, (c) Class Ⅲ.
Fig 7.
Modeling of displacement spectra.
(a) Averaging earthquake types, (b) Averaging site classes, (c) Averaging earthquake types and site classes.
Table 3.
Mean ratios of PGD and PGA.
Table 4.
The maximum acceleration for the earthquake in time history analysis.
Table 5.
Design peak ground displacement at different sites (Unit: cm).
Fig 8.
The calculation model.
Table 6.
Strong motion records.
Fig 9.
The nonlinear displacement spectra of strong motion records.
(a) NF, (b) NFN, (c) FF.
Fig 10.
The average spectrum and the nonlinear displacement spectrum of the modeled isolation layer.
(a) NF, (b) NFN, (c) FF.
Fig 11.
The relative error of average spectrum and modeled spectrum.
(a) NF, (b) NFN, (c) FF.
Table 7.
Displacement of the isolated layer (Unit: m).