EACS 2016 paper - EXPERIMENTAL STUDY OF THE EFFECTIVENESS OF SEMI-ACTIVELY IMPLEMENTED POWER-LAW DAMPING ON SUPPRESSING THE SEISMIC RESPONSE OF A BASE-ISOLATED BUILDING
Masashi OMURA
Fumito NAKAMICHI
Masayuki KOHIYAMA
Maki DAN
Zi-Qiang Lang
10.15131/shef.data.4476251.v1
https://orda.shef.ac.uk/articles/journal_contribution/EACS_2016_paper_-_EXPERIMENTAL_STUDY_OF_THE_EFFECTIVENESS_OF_SEMI-ACTIVELY_IMPLEMENTED_POWER-LAW_DAMPING_ON_SUPPRESSING_THE_SEISMIC_RESPONSE_OF_A_BASE-ISOLATED_BUILDING/4476251
<div>EACS 2016 Paper No. 155</div><div><br></div>This study focuses on verifying the effectiveness of the nonlinear power-law damping system on reduction of the vibration of base-isolated buildings with semi-actively implemented dampers over the ranges of resonance frequencies without causing detrimental effects over other frequency ranges. To verify the effctiveness of the proposed power-law damping system, shaking-table tests on a small-scale two-story physical building model are conducted. Random ground motions are used as the input excitations. The physical building model is equipped with a semi-active oil damper whose damping coeffcient can be varied over four different values. This provides an effective mechanism for semi-actively implementing the power-law damping system. The shaking-table tests have demonstrated the effectiveness and robustness of the power-law damping and indicated that this can be a more practical solution to improving the performance of building base-isolation systems.
2017-03-28 15:19:49
EACS2016
base-isolated building
semi-active oil damper
power-law damping
shaking table test
Mechanical Engineering