DOI QR코드

DOI QR Code

Seismic Performance of SDF Systems with Tuned Liquid Damper Subjected to Ground Motions

지진 하중에 대한 동조액체감쇠기 성능 수치해석 검토

  • Han, Sang-Whan (Division of Architechtural Engineering, Hanyang Univ.) ;
  • Oh, Seung-Bo (Division of Architechtural Engineering, Hanyang Univ.) ;
  • Ha, Sung-Jin (Division of Architechtural Engineering, Hanyang Univ.)
  • Received : 2016.04.04
  • Accepted : 2016.04.19
  • Published : 2016.06.30

Abstract

Tuned Liquid Dampers(TLD) are energy dissipation devices that have been proposed to control the dynamics response of structure. The TLD has been shown to effectively control the wind response of structures. However, controlling responses of structures with TLD under seismic loads are not fully investigated. The objective of this study is to evaluate the seismic performance of single degree of freedom(SDF) with TLDs having various tuning and mass raitos. For this purpose, analytical studies are conducted. Different soil conditions are considered in this study. As a result, performance of TLD, appeared diffrently depending on the natural period, damping ratio of the structure. Also TLD tuning ratio appeared differently.

동조액체감쇠기(TLD)는 에너지 소산장치로써 구조물의 동적응답을 제어하기 위해 개발되었다. TLD는 풍하중에 의한 구조물의 응답을 제어에 매우 효과적임을 보여줬다. 그러나 TLD가 설치된 구조물의 지진응답의 제어에 대해서는 충분한 연구가 이뤄지지 않았다. 이 연구의 목적은 TLD가 설치된 구조물에 여러 동조비와 질량비를 대입하여 지진에 대한 TLD의 성능을 도출하는 것이다. 이러한 목적을 위해, 수치해석 연구가 실시되며, 다른 토양 조건 또한 고려되었다. 그 결과 지진하중에 대한 TLD의 성능은 구조물의 고유주기, 감쇠비에 따라 다르게 나타났다. 또한 TLD의 동조비 다르게 나타남을 알 수 있었다.

Keywords

References

  1. Banerji, P. (2000) Tuned Liquid Dampers for Controlling Earthquake Response of Structures, Earthq. Eng. & Struct. Dyn., 29, pp.587-602. https://doi.org/10.1002/(SICI)1096-9845(200005)29:5<587::AID-EQE926>3.0.CO;2-I
  2. Chopra, A. (2001) Dynamics of Structures-theory and Applications to Earthquake Engineering. Prentice-Hall.
  3. Fujino, Y. (1992) Tuned Liquid Damper(TLD) for Suppressing Horizontal Motion of Structure, J. Eng. Mech., 118(10).
  4. Ha, S., Han, S. (2016) A Method for Selecting Ground Motions that Considers Targen Response Spectrum Mean and Variance as well as Correlation Structure, J. Earthq. Eng., Published online.
  5. Yu, J. (1999) A Non-linear Numerical Model of the Tuned Liquid Damper, Earthq. Eng. & Struct. Dyn., 28, pp.671-686. https://doi.org/10.1002/(SICI)1096-9845(199906)28:6<671::AID-EQE835>3.0.CO;2-X