Details
| Original language | English |
|---|---|
| Pages (from-to) | 310-321 |
| Number of pages | 12 |
| Journal | Australian Journal of Structural Engineering |
| Volume | 21 |
| Issue number | 1 |
| Publication status | Published - 2 Jan 2020 |
| Externally published | Yes |
Abstract
Earthquake response mitigation of base-isolated (BI) buildings with a tuned mass damper (TMD) is investigated. Two-dimensional reinforced concrete buildings having multiple degrees of freedom are numerically modelled. The placement of a TMD is varied on different floor levels and the building response under earthquake excitations is studied. The laminated rubber bearing (LRB), lead rubber bearing (N-Z), friction pendulum system and resilient-friction base isolator (R-FBI) are used as isolation systems for the buildings with 5, 10 and 15 floor levels. Newmark’s step-by-step method of integration is used for solving differential equations of motion of the coupled buildings. Installation of a TMD at different story of the BI buildings mitigates the acceleration at the top level and displacement at bearings. It is found that at increased time period of the isolators the effectiveness of the TMD is reduced. Further, for low-rise buildings, the placement of TMD has no significant role in reducing the response of the buildings. However, the efficiency of TMD placement is more noticeable for buildings with a larger number of stories.
Keywords
- Base-isolated buildings, bearing displacement, hybrid vibration controller, top floor acceleration, tuned mass damper
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Australian Journal of Structural Engineering, Vol. 21, No. 1, 02.01.2020, p. 310-321.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Seismic response control of base-isolated buildings using tuned mass damper
AU - Stanikzai, Mohammad Hamayoun
AU - Elias, Said
AU - Matsagar, Vasant A.
AU - Jain, Arvind K.
N1 - Publisher Copyright: © 2019, © 2019 Engineers Australia.
PY - 2020/1/2
Y1 - 2020/1/2
N2 - Earthquake response mitigation of base-isolated (BI) buildings with a tuned mass damper (TMD) is investigated. Two-dimensional reinforced concrete buildings having multiple degrees of freedom are numerically modelled. The placement of a TMD is varied on different floor levels and the building response under earthquake excitations is studied. The laminated rubber bearing (LRB), lead rubber bearing (N-Z), friction pendulum system and resilient-friction base isolator (R-FBI) are used as isolation systems for the buildings with 5, 10 and 15 floor levels. Newmark’s step-by-step method of integration is used for solving differential equations of motion of the coupled buildings. Installation of a TMD at different story of the BI buildings mitigates the acceleration at the top level and displacement at bearings. It is found that at increased time period of the isolators the effectiveness of the TMD is reduced. Further, for low-rise buildings, the placement of TMD has no significant role in reducing the response of the buildings. However, the efficiency of TMD placement is more noticeable for buildings with a larger number of stories.
AB - Earthquake response mitigation of base-isolated (BI) buildings with a tuned mass damper (TMD) is investigated. Two-dimensional reinforced concrete buildings having multiple degrees of freedom are numerically modelled. The placement of a TMD is varied on different floor levels and the building response under earthquake excitations is studied. The laminated rubber bearing (LRB), lead rubber bearing (N-Z), friction pendulum system and resilient-friction base isolator (R-FBI) are used as isolation systems for the buildings with 5, 10 and 15 floor levels. Newmark’s step-by-step method of integration is used for solving differential equations of motion of the coupled buildings. Installation of a TMD at different story of the BI buildings mitigates the acceleration at the top level and displacement at bearings. It is found that at increased time period of the isolators the effectiveness of the TMD is reduced. Further, for low-rise buildings, the placement of TMD has no significant role in reducing the response of the buildings. However, the efficiency of TMD placement is more noticeable for buildings with a larger number of stories.
KW - Base-isolated buildings
KW - bearing displacement
KW - hybrid vibration controller
KW - top floor acceleration
KW - tuned mass damper
UR - http://www.scopus.com/inward/record.url?scp=85068618526&partnerID=8YFLogxK
U2 - 10.1080/13287982.2019.1635307
DO - 10.1080/13287982.2019.1635307
M3 - Article
AN - SCOPUS:85068618526
VL - 21
SP - 310
EP - 321
JO - Australian Journal of Structural Engineering
JF - Australian Journal of Structural Engineering
SN - 1328-7982
IS - 1
ER -