Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modal identification of freeway overcrossings with soil–structure interaction: a case study
This paper is concerned with a widely studied problem—that of the identification of the modal characteristics of freeway overcrossings and other bridges, which response is interacting with their approaching embankments and their foundation. The study implements a sophisticated parameter estimation method known as the prediction error method and examines in detail the sensitivity of the modal characteristics (frequency and damping) of the bridge when the input signals are taken at the free field, at the approaching embankments and pile caps, and on the abutments and the pile caps. The findings of this case study on the Meloland Road Overcrossing with the prediction error method are compared with the results from past system identification studies and the results from finite element analyses, which examined in depth the contribution of the approaching embankments in the bridge response. The study concludes that despite the appreciable energy dissipation capability of the approaching embankments the concrete bridge structure, while interacting mechanically with the embankments, remains small. Copyright © 2011 John Wiley & Sons, Ltd.
Modal identification of freeway overcrossings with soil–structure interaction: a case study
This paper is concerned with a widely studied problem—that of the identification of the modal characteristics of freeway overcrossings and other bridges, which response is interacting with their approaching embankments and their foundation. The study implements a sophisticated parameter estimation method known as the prediction error method and examines in detail the sensitivity of the modal characteristics (frequency and damping) of the bridge when the input signals are taken at the free field, at the approaching embankments and pile caps, and on the abutments and the pile caps. The findings of this case study on the Meloland Road Overcrossing with the prediction error method are compared with the results from past system identification studies and the results from finite element analyses, which examined in depth the contribution of the approaching embankments in the bridge response. The study concludes that despite the appreciable energy dissipation capability of the approaching embankments the concrete bridge structure, while interacting mechanically with the embankments, remains small. Copyright © 2011 John Wiley & Sons, Ltd.
Modal identification of freeway overcrossings with soil–structure interaction: a case study
Kampas, Georgios (Autor:in) / Makris, Nicos (Autor:in)
Structural Control and Health Monitoring ; 20 ; 304-319
01.03.2013
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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