| 英文摘要 |
Tuned mass dampers (TMD) are used to reduce the vibrations of high-rise buildings due to wind disturbance. Specifically, the displacement-dependent tuned mass damper (DTMD) is an effective energy absorber that is connected to a primary structure to reduce the vibration response of the structure under harmonic and external force disturbances. Its natural frequency is adjusted to be close to the fundamental vibration frequency of the primary structure, which leads to an antiphase resonance that dissipates the external force-induced disturbance energy. Several studies have proposed different objective optimization design functions and researchers have developed active and semi-active TMD systems to significantly improve control efficiency. In this study, a reasonable mass and objective function were considered using a simplified degree-of-freedom structural model (DTMD and primary structure) to derive an optimized design method and evaluate the feasibility of structural reinforcement through numerical analysis of the TMP and shaking table tests. The fundamental retrofit design used in this study can facilitate the development of specialized DTMDs that can be applied in practical engineering contexts. |
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