A comparative study on the methods for analyses of viscoelastically damped structures

점탄성 감쇠기가 설치된 구조물의해석방법에 관한 연구

Although the vibration control effects of viscoelastic dampers in building structures have been well proved by numerous theoretical and practical examples it is difficult to find an outstanding method for analysis of viscoelastically damped structures satisfying both exactness and efficiency. Thus in this study four analysis methods for viscoelastically damped structures that are currently used or can be applied for the those system are speculated and compared to provide bass for developing a better method for analysis of viscoelastically damped structures. The seismic response time history inter-story drfts and analysis time recorded by computer simulation of four different methods are compared. Among these methods complex modal superposition approach turns out to be ecomomic and accurate procedure.