Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
권호 표지
DOI QR코드

DOI QR Code

Performance Evaluation of Wind Response Control of High-Rise Buildings by Damping and Stiffness of Outrigger Damper System

아웃리거 댐퍼시스템의 감쇠와 강성에 따른 고층 건물 풍응답 제어 성능 평가

  • Received : 2018.06.29
  • Accepted : 2018.07.04
  • Published : 2018.12.15
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, the concept of an outrigger damper system with a damper added to the existing outrigger system has been developed and applied for dynamic response control of high-rise buildings. However, the study on the structural characteristics and design method of Outrigger damper system is in the early stages. In this study, a 50 story high - rise building was designed and an outrigger damper system with viscoelastic damper was applied for wind response control. The time history analysis was performed by using the kaimal spectrum to create an artificial wind load for a total of 1,000 seconds at 0.1 second intervals. Analysis of the top horizontal maximum displacement response and acceleration response shows that outrigger damper systems are up to 28.33% and 49.26% more effective than conventional outrigger systems, respectively. Also, it is confirmed that the increase of damping ratio of dampers is effective for dynamic response control. However, since increasing the damping capacity increases the economic burden, it is necessary to select the appropriate stiffness and damping value of the outrigger damper system.

Keywords

References

  1. Joung, J. W., Kim, J. Y., & Kim, D. Y. (2010). Semi-active Structural Control using Outrigger Damper System. Proceedings of the Korean Society for Noise and Vibration Engineering, Republic of Korea, Vol.2010, No.10, pp.234-235
  2. Smith, R. J., & Willford, M. R., "Damped outriggers for tall building", The Arup Journal, No.3, pp.15-21, 2008
  3. Park, G. D., kim, D. Y., Joung, D. K., & Yang, D. H., "Improving Construction Quality and Conveniency by Applying Outrigger Dampers to Outrigger to Perimeter Column Joints", Review of Architecture and Building Science, Vol.53, No.8, pp.30-37, 2009
  4. Smith, R. J., & Willford, M. R., "The damped outrigger concept for tall buildings", The Structural Design of Tall and Special Buildings, Vol.16, No.4, pp.501-517, 2007 https://doi.org/10.1002/tal.413
  5. Nanduri, R. K., Suresh, B., & Hussain, I., "Optimum Position of Outrigger System for High-Rise Reinforced Concrete Buildings Under Wind and Earthquake Loadings", American Journal of Engineering Research, Vol.2 No.8, pp.76-89, 2013
  6. McNabb, J. W., & Muvdi, B. B., "Drift reduction factors for belted high-rise structures", Engineering journal, Vol.12, No.3, pp.88-91, 1975