Wind-induced vibration control of tall buildings using hybrid buckling-restrained braces
- Authors
- Kim, Do-Hyun; Ju, Young K.; Kim, Myeong-Han; Kim, Sang-Dae
- Issue Date
- 5월-2014
- Publisher
- WILEY
- Keywords
- buckling-restrained brace; viscoelastic damper; hybrid damper; serviceability; tall building; time history analysis
- Citation
- STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS, v.23, no.7, pp.549 - 562
- Indexed
- SCIE
SCOPUS
- Journal Title
- STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS
- Volume
- 23
- Number
- 7
- Start Page
- 549
- End Page
- 562
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/98624
- DOI
- 10.1002/tal.1066
- ISSN
- 1541-7794
- Abstract
- A buckling-restrained brace (BRB) is a system with excellent earthquake-proof performance, but it does not dissipate energies caused by the load from weak earthquakes or winds. A hybrid BRB (H-BRB), which improved the performance of the BRB, is a type of composite damper system consisting of a BRB and a viscoelastic damper. To explain the wind-induced vibration control performance of H-BRB, a 40-story steel building was designed and used as an analysis model in this study, on the basis of the damping ratio from a structural performance test, using normal steel braces, BRB and H-BRB. In addition, to evaluate the optimal location of H-BRB, a time-history analysis of four models was conducted in the study. For such time-history analysis, wind-load data in a 10-year recurrence interval, which were calculated from the wind tunnel test, were used. The result of the time-history analysis showed that H-BRB is effective in improving both the lateral stiffness and serviceability of a building using the existing BRB. It also confirmed that it is most effective to position H-BRBs mainly on the lower stories. Copyright (c) 2012 John Wiley & Sons, Ltd.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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