TY - GEN
T1 - Seismic displacement control design of base isolated structures by magneto-rheological dampers based on a pseudo-complex-damping rule
AU - Ikenaga, M.
AU - Ikago, K.
AU - Inoue, N.
PY - 2011
Y1 - 2011
N2 - This paper shows the feasibility of the displacement-dependent damper for a base-isolated structure. The ideal displacement-dependent damper can be modelled by using complex damping. To simulate such dampers by a semi-active damper (in this study the magneto-rheological damper), the pseudo-complex- damping rule is considered. From a series of shaking table tests and numerical analyses for the base-isolated structure, incorporated with the semi-active damper controlled by the pseudo-complex-damping rule in the base-isolated layer, it is shown that the hysteretic behavior of the damper, by the pseudo-complex-damping rule, cannot simulate the ideal displacement-dependent damper well because of the simplified assumption for the rule. An improvement of the pseudo-complex-damping rule is considered, and it is shown from the analyses that the damper by the improved rule can better simulate the displacement-dependent damper.
AB - This paper shows the feasibility of the displacement-dependent damper for a base-isolated structure. The ideal displacement-dependent damper can be modelled by using complex damping. To simulate such dampers by a semi-active damper (in this study the magneto-rheological damper), the pseudo-complex- damping rule is considered. From a series of shaking table tests and numerical analyses for the base-isolated structure, incorporated with the semi-active damper controlled by the pseudo-complex-damping rule in the base-isolated layer, it is shown that the hysteretic behavior of the damper, by the pseudo-complex-damping rule, cannot simulate the ideal displacement-dependent damper well because of the simplified assumption for the rule. An improvement of the pseudo-complex-damping rule is considered, and it is shown from the analyses that the damper by the improved rule can better simulate the displacement-dependent damper.
KW - Base-isolated structure
KW - Displacement-dependent damper
KW - Magneto-rheological damper
KW - Numerical analysis
KW - Pseudo-complex-damping rule
KW - Shaking table test
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M3 - Conference contribution
AN - SCOPUS:84858414151
SN - 9781905088454
T3 - Proceedings of the 13th International Conference on Civil, Structural and Environmental Engineering Computing
BT - Proceedings of the 13th International Conference on Civil, Structural and Environmental Engineering Computing
T2 - 13th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2011
Y2 - 6 September 2011 through 9 September 2011
ER -