《Table 3Indexes of semi-active predictive control under different time-delay steps》

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《Semi-Active Predictive Control of Isolated Bridge Based on Magnetorheological Elastomer Bearing》

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It can be seen that the semi-active predictive control can be used in the system to compensate timedelay，and it is effective to reduce the seismic response of the structure.In order to see the effect of time-delay compensation，the standards J1—J6in Ref.[17]are selected as the control performance indexes.As presented in Table 3，J1—J3represent the peak ratios of maximum displacement，maximum acceleration and maximum shearing force of pier top of controlled structure to uncontrolled structure，respectively；J4—J6represent the RMS ratios of maximum displacement，maximum acceleration and maximum shearing force of controlled structure to uncontrolled structure，respectively.