Seismic response control of bridges with nonlinear tuned vibration absorbers

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Said Elias
  • Rajesh Rupakhety
  • Dario De Domenico
  • Simon Olafsson

Externe Organisationen

  • University of Iceland
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)262-274
Seitenumfang13
FachzeitschriftStructures
Jahrgang34
PublikationsstatusVeröffentlicht - Dez. 2021
Extern publiziertJa

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.

ASJC Scopus Sachgebiete

Zitieren

Seismic response control of bridges with nonlinear tuned vibration absorbers. / Elias, Said; Rupakhety, Rajesh; Domenico, Dario De et al.
in: Structures, Jahrgang 34, 12.2021, S. 262-274.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Elias S, Rupakhety R, Domenico DD, Olafsson S. Seismic response control of bridges with nonlinear tuned vibration absorbers. Structures. 2021 Dez;34:262-274. doi: 10.1016/j.istruc.2021.07.066
Elias, Said ; Rupakhety, Rajesh ; Domenico, Dario De et al. / Seismic response control of bridges with nonlinear tuned vibration absorbers. in: Structures. 2021 ; Jahrgang 34. S. 262-274.
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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.",
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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.

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KW - Earthquake engineering

KW - Nonlinear tuned vibration absorbers (n-TVAs)

KW - Optimum design

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