| 英文摘要 |
In this paper, an optimal design of a structure implemented with a friction pendulum system(FPS) type tuned mass damper(TMD) is proposed. The FPS typed TMD has these properties:(1) the mass slides on the spherical surface so that the space to accommodate the FPS type TMD is much less than the suspension type;(2) restoring force is provided by the spherical surface so that no extra spring is needed; and(3) vibration energy is dissipated by the friction mechanism of the interface between the mass and the spherical surface. Numerical simulation method is proposed for the structure implemented with FPS type TMD. The optimal design parameters(frequency ratio and friction coefficient) of the TMD are found by direct search method. The feasibility of the proposed TMD is illustrated by adopting the Taipei 101 as a model implemented with FPS type TMD. Subjected to design wind force with return period of half a year, the requirement of comfort is satisfied. |
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