Wind-induced vibration control of tall buildings using hybrid buckling-restrained braces

Do Hyun Kim, Young-Kyu Ju, Myeong Han Kim, Sang Dae Kim

Research output: Contribution to journalArticle

6 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)549-562
Number of pages14
JournalStructural Design of Tall and Special Buildings
Volume23
Issue number7
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Tall buildings
Vibration control
Buckling
Earthquakes
Steel
Wind tunnels
Damping
Stiffness
Composite materials

Keywords

  • buckling-restrained brace
  • hybrid damper
  • serviceability
  • tall building
  • time history analysis
  • viscoelastic damper

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Architecture

Cite this

Wind-induced vibration control of tall buildings using hybrid buckling-restrained braces. / Kim, Do Hyun; Ju, Young-Kyu; Kim, Myeong Han; Kim, Sang Dae.

In: Structural Design of Tall and Special Buildings, Vol. 23, No. 7, 01.01.2014, p. 549-562.

Research output: Contribution to journalArticle

@article{b3783354c0674977923b7152078c8663,
title = "Wind-induced vibration control of tall buildings using hybrid buckling-restrained braces",
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.",
keywords = "buckling-restrained brace, hybrid damper, serviceability, tall building, time history analysis, viscoelastic damper",
author = "Kim, {Do Hyun} and Young-Kyu Ju and Kim, {Myeong Han} and Kim, {Sang Dae}",
year = "2014",
month = "1",
day = "1",
doi = "10.1002/tal.1066",
language = "English",
volume = "23",
pages = "549--562",
journal = "Structural Design of Tall and Special Buildings",
issn = "1541-7794",
publisher = "John Wiley and Sons Ltd",
number = "7",

}

TY - JOUR

T1 - Wind-induced vibration control of tall buildings using hybrid buckling-restrained braces

AU - Kim, Do Hyun

AU - Ju, Young-Kyu

AU - Kim, Myeong Han

AU - Kim, Sang Dae

PY - 2014/1/1

Y1 - 2014/1/1

N2 - 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.

AB - 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.

KW - buckling-restrained brace

KW - hybrid damper

KW - serviceability

KW - tall building

KW - time history analysis

KW - viscoelastic damper

UR - http://www.scopus.com/inward/record.url?scp=84898898763&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898898763&partnerID=8YFLogxK

U2 - 10.1002/tal.1066

DO - 10.1002/tal.1066

M3 - Article

AN - SCOPUS:84898898763

VL - 23

SP - 549

EP - 562

JO - Structural Design of Tall and Special Buildings

JF - Structural Design of Tall and Special Buildings

SN - 1541-7794

IS - 7

ER -