Effectiveness of tuned mass dampers in seismic response control of isolated bridges including soil-structure interaction

verfasst von

Said Elias, Vasant Matsagar

Abstract

The effect of soil-structure interaction (SSI) on the dynamic responses of seismically isolated three-span continuous reinforced concrete (RC) bridge is investigated. Also, tuned mass damper(s) (TMD/s) is/are installed to control undesirable bearing displacement, even under the SSI effect. The TMDs are placed at the mid-span of the bridge and each tuned with a modal frequency, while controlling up to first few modes as desirable. The soil surrounding the foundation of pier is modeled by frequency independent coefficients. Dynamic analysis is carried out in time domain using direct integration method. In order to specify the effects of the SSI, the responses of the non-isolated, isolated, and controlled isolated bridge are compared. It is observed that the soil surrounding the pier has significant effects on the bearing displacement of the isolated RC bridges. In addition, it is observed that the seismic responses of isolated RC bridge reduced significantly with installation of the TMDs.

Externe Organisation(en)

Indian Institute of Technology Delhi (IITD)

Typ

Artikel

Journal

Latin American Journal of Solids and Structures

Band

14

Seiten

2324-2341

Anzahl der Seiten

18

ISSN

1679-7817

Publikationsdatum

2017

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Tief- und Ingenieurbau, Allgemeine Materialwissenschaften, Fahrzeugbau, Luft- und Raumfahrttechnik, Meerestechnik, Werkstoffmechanik, Maschinenbau

Elektronische Version(en)

https://doi.org/10.1590/1679-78253893 (Zugang: Offen)