Abstract:Tuned mass damper (TMD) can reduce the dynamic response of structure under earthquake, but the traditional tuned mass damper is not effective to reduce translation-torsion coupled vibration. In this paper, a two-directional horizontal and torsional tuned mass damper, which includes tuned mass blocks, torsional blocks and rotation lever, is proposed. The horizontal and torsional response of the building structure is controlled by means of the movement and the rotation of the multi-dimensional tuned mass damper (MDTMD) in different directions. According to the movement mechanism of the MDTMD, the equation of motion for the control system considering eccentric torsion effect is derived. An eccentric structure with MDTMD is analyzed to verify the control performance for the horizontal and torsional coupled system under earthquake, and the reduction effect is compared with the traditional TMD. The results show that the coupled response can be reduced effectively by MDTMD and the vibration reduction ration is much higher than traditional TMD. domain.
何浩祥;葛腾飞;闫维明. 双向水平及扭转调谐质量阻尼器及其减震控制研究[J]. , 2012, 31(18): 143-147.
HE Hao-xiang; GE Teng-fei; YAN Wei-ming. Seismic control of two-directional horizontal and torsionaltuned mass damper. , 2012, 31(18): 143-147.