The Analyses of Reinforced Concrete Structural Systems with Advanced Damping Mechanism

• Main Authors: Po-kai Chiu, 邱舶凱
• Other Authors: Ko-Young Shao
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/11720441610519551292

碩士 === 義守大學 === 土木與生態工程學系碩士班 === 97 === The purpose of this study is to investigate the energy dissipation analyses of reinforced concrete structural systems with advanced damping mechanism. The energy of the vibrating system is dissipated by various damping mechanisms. As a result, the damping in actual structures is usually represented in a highly idealized manner. For many purposes the actual damping can be idealized satisfactorily by a linear viscous damper or dashpot. The damping coefficient is selected so that the vibration energy dissipation is equivalent to the energy absorbed in all the damping mechanisms. In combination, it presents in the actual structures. The equivalent viscous damper is intended to model the energy dissipation. Therefore, the energy dissipation at the deformation amplitudes within the linear elastic limit of the overall structure can be represented properly. Over this range of deformations, the damping coefficient c determined from experiments may vary with the deformation amplitudes. This nonlinearity of the damping property is usually not considered explicitly in dynamic analyses. It may be handled indirectly by selecting a value for the damping coefficient that is appropriate for the expected deformation amplitude. The damping coefficient is usually taken as the deformation associated with the linearly elastic limit of the structure. The larger deformation related with the more energy dissipated can be assumed. New damping equipments have been generated to amplify the deformation of the structure.