面內撓曲式阻尼器之性能分析與比較

Abstract

摘要 消能減隔震阻尼器作為一門迅速發展起來的學科，在結構使用中變得越來越普遍。這些阻尼器的應用為結構提供了附加剛度和附加阻尼，減少傳入結構中的能量，使得結構在風力以及地震力的作用下的反應變小，有效的消散了能量。本文對E字形阻尼器進行了完整的力學理論分析和有限元模擬分析。同時本文對其他多種面內撓曲式阻尼器做了理論分析和模擬分析，並通過對不同幾何形狀的面內撓曲式阻尼器的有限元模擬分析來研究幾何形狀對於阻尼器性能的影響，同時應用等效應力法來比較這些阻尼器性能的良莠。阻尼器支座不僅應用于建築結構中，在橋樑及高架公路中的應用也已成為趨勢。由此，本文提出了新型鋼阻尼支座的設計，並應用SAP2000對鋼阻尼進行了模擬分析，為後期振動臺試驗提供輔助。同時，後續也可考慮將多種面內撓曲式阻尼器整合其中，以找出更好的應用模式。

關鍵字：面內撓曲式阻尼器、 E字形阻尼器 、有限元分析 、鋼阻尼器支座

Abstract

The energy dissipation and vibrate isolation damper as a rapidly developing discipline is becoming more common in the structural use. These dampers' application provides the additional stiffness and the damping to the structure, reduces the incoming energy to the structure, so that the reaction of the structure becomes smaller under the action of wind and seismic forces , effectively dissipate the energy. This paper has given a complete analysis for the E-shaped damper both on the mechanics theoretical analysis and the finite element analysis. Additionally, this paper also has described the analysis for a variety of in-plane dampers both on theoretical analysis and the simulation analysis, and through the finite element simulation of different geometrical in-plane dampers analysis to study the influence of the geometry for the performance of the dampers , while applying the equivalent stress method to compare the performance of these dampers. The damper bearing applies not only to the building structures , the bridges and elevated highways have also become the trend. Thus, this paper presents a new type of steel damping bearing design and applies the SAP2000 to do a simulation analysis for the steel damping, provides assistance for the shaking table test. Meanwhile, the follow-up will also be considered the integration of a variety of in-plane dampers as to find a better application mode.