Details
| Original language | English |
|---|---|
| Pages (from-to) | 262-274 |
| Number of pages | 13 |
| Journal | Structures |
| Volume | 34 |
| Publication status | Published - Dec 2021 |
| Externally published | Yes |
Abstract
The paper investigates seismic response control of bridges with nonlinear tuned vibration absorbers (n-TVAs). A three-span continuous bridge is used as case study. The n-TVAs are designed to act in both longitudinal and transverse directions of the bridge. The n-TVAs are modelled as inelastic springs with bilinear hysteretic behavior. A simple and effective method to design the parameters of the n-TVAs for controlling structural displacement is presented. The performance of the proposed n-TVAs is compared with the optimum linear TVAs (o-TVAs) and elasto-plastic bilinear TVAs (bn-TVAs). The results show that the n-TVAs are at least as effective as o-TVAs in controlling structural response. Because the n-TVAs do not require additional dashpots like the o-TVAs, they provide a more economical solution. It is observed that although effective in controlling structural response, their stroke is of the same order as that of o-TVAs. Addition of a viscous dashpot to the device is found to reduce their stroke, although accompanied by an inherent detrimental effect on the structural control performance.
Keywords
- Bridges, Earthquake engineering, Nonlinear tuned vibration absorbers (n-TVAs), Optimum design, Structural control
ASJC Scopus subject areas
- Engineering(all)
- Safety, Risk, Reliability and Quality
- Engineering(all)
- Building and Construction
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Architecture
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In: Structures, Vol. 34, 12.2021, p. 262-274.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Seismic response control of bridges with nonlinear tuned vibration absorbers
AU - Elias, Said
AU - Rupakhety, Rajesh
AU - Domenico, Dario De
AU - Olafsson, Simon
N1 - Publisher Copyright: © 2021 Institution of Structural Engineers
PY - 2021/12
Y1 - 2021/12
N2 - The paper investigates seismic response control of bridges with nonlinear tuned vibration absorbers (n-TVAs). A three-span continuous bridge is used as case study. The n-TVAs are designed to act in both longitudinal and transverse directions of the bridge. The n-TVAs are modelled as inelastic springs with bilinear hysteretic behavior. A simple and effective method to design the parameters of the n-TVAs for controlling structural displacement is presented. The performance of the proposed n-TVAs is compared with the optimum linear TVAs (o-TVAs) and elasto-plastic bilinear TVAs (bn-TVAs). The results show that the n-TVAs are at least as effective as o-TVAs in controlling structural response. Because the n-TVAs do not require additional dashpots like the o-TVAs, they provide a more economical solution. It is observed that although effective in controlling structural response, their stroke is of the same order as that of o-TVAs. Addition of a viscous dashpot to the device is found to reduce their stroke, although accompanied by an inherent detrimental effect on the structural control performance.
AB - The paper investigates seismic response control of bridges with nonlinear tuned vibration absorbers (n-TVAs). A three-span continuous bridge is used as case study. The n-TVAs are designed to act in both longitudinal and transverse directions of the bridge. The n-TVAs are modelled as inelastic springs with bilinear hysteretic behavior. A simple and effective method to design the parameters of the n-TVAs for controlling structural displacement is presented. The performance of the proposed n-TVAs is compared with the optimum linear TVAs (o-TVAs) and elasto-plastic bilinear TVAs (bn-TVAs). The results show that the n-TVAs are at least as effective as o-TVAs in controlling structural response. Because the n-TVAs do not require additional dashpots like the o-TVAs, they provide a more economical solution. It is observed that although effective in controlling structural response, their stroke is of the same order as that of o-TVAs. Addition of a viscous dashpot to the device is found to reduce their stroke, although accompanied by an inherent detrimental effect on the structural control performance.
KW - Bridges
KW - Earthquake engineering
KW - Nonlinear tuned vibration absorbers (n-TVAs)
KW - Optimum design
KW - Structural control
UR - http://www.scopus.com/inward/record.url?scp=85111941976&partnerID=8YFLogxK
U2 - 10.1016/j.istruc.2021.07.066
DO - 10.1016/j.istruc.2021.07.066
M3 - Article
VL - 34
SP - 262
EP - 274
JO - Structures
JF - Structures
SN - 2352-0124
ER -