Details
| Original language | English |
|---|---|
| Pages (from-to) | 51-60 |
| Number of pages | 10 |
| Journal | Journal of Building Engineering |
| Volume | 15 |
| Publication status | Published - Jan 2018 |
| Externally published | Yes |
Abstract
Wind response control of tall buildings installed with a tuned mass damper (TMD) is investigated. The performance of a TMD installed at the topmost floor of a 76-storey benchmark building is compared with the TMD installed at different floors (locations) of the building. The TMD is placed where particular mode shape amplitude of the building is largest or larger. At each location, the performance of the TMD is examined by tuning it to the first few modal frequencies. The coupled differential equations of motion for the building without/with the TMD are derived and solved by employing Newmark's integration method. Variations in the normalized response of the controlled building under wind forces are computed to study the effectiveness of using different TMD schemes. Placement, tuning frequencies, mass and damping ratios of the devices are the parameters investigated to compare the effectiveness of these different TMD schemes. It is concluded that placement of the TMD shows a significant influence in improvement of the performance of the TMD, especially if it is tuned to the corresponding modal frequency. In addition, the optimally determined damping ratio reduces for the TMD tuned to the higher modal frequencies.
Keywords
- Modal frequency/shape, Tall building, Tuned mass damper (TMD), Wind forces
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Architecture
- Engineering(all)
- Building and Construction
- Engineering(all)
- Safety, Risk, Reliability and Quality
- Engineering(all)
- Mechanics of Materials
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In: Journal of Building Engineering, Vol. 15, 01.2018, p. 51-60.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Wind response control of tall buildings with a tuned mass damper
AU - Elias, Said
AU - Matsagar, Vasant
N1 - Publisher Copyright: © 2017 Elsevier Ltd
PY - 2018/1
Y1 - 2018/1
N2 - Wind response control of tall buildings installed with a tuned mass damper (TMD) is investigated. The performance of a TMD installed at the topmost floor of a 76-storey benchmark building is compared with the TMD installed at different floors (locations) of the building. The TMD is placed where particular mode shape amplitude of the building is largest or larger. At each location, the performance of the TMD is examined by tuning it to the first few modal frequencies. The coupled differential equations of motion for the building without/with the TMD are derived and solved by employing Newmark's integration method. Variations in the normalized response of the controlled building under wind forces are computed to study the effectiveness of using different TMD schemes. Placement, tuning frequencies, mass and damping ratios of the devices are the parameters investigated to compare the effectiveness of these different TMD schemes. It is concluded that placement of the TMD shows a significant influence in improvement of the performance of the TMD, especially if it is tuned to the corresponding modal frequency. In addition, the optimally determined damping ratio reduces for the TMD tuned to the higher modal frequencies.
AB - Wind response control of tall buildings installed with a tuned mass damper (TMD) is investigated. The performance of a TMD installed at the topmost floor of a 76-storey benchmark building is compared with the TMD installed at different floors (locations) of the building. The TMD is placed where particular mode shape amplitude of the building is largest or larger. At each location, the performance of the TMD is examined by tuning it to the first few modal frequencies. The coupled differential equations of motion for the building without/with the TMD are derived and solved by employing Newmark's integration method. Variations in the normalized response of the controlled building under wind forces are computed to study the effectiveness of using different TMD schemes. Placement, tuning frequencies, mass and damping ratios of the devices are the parameters investigated to compare the effectiveness of these different TMD schemes. It is concluded that placement of the TMD shows a significant influence in improvement of the performance of the TMD, especially if it is tuned to the corresponding modal frequency. In addition, the optimally determined damping ratio reduces for the TMD tuned to the higher modal frequencies.
KW - Modal frequency/shape
KW - Tall building
KW - Tuned mass damper (TMD)
KW - Wind forces
UR - http://www.scopus.com/inward/record.url?scp=85033393704&partnerID=8YFLogxK
U2 - 10.1016/j.jobe.2017.11.005
DO - 10.1016/j.jobe.2017.11.005
M3 - Article
AN - SCOPUS:85033393704
VL - 15
SP - 51
EP - 60
JO - Journal of Building Engineering
JF - Journal of Building Engineering
ER -