Analysis of Tower-Girder Transfer Pounding on the Yokohama-Bay Cable- Stayed Bridge during 2011 Great East Japan Earthquake
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Bibliografische Angaben
Autor(en): |
Dionysius M. Siringoringo
Gotaro Takamoto Yozo Fujino |
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Medium: | Tagungsbeitrag | ||||
Sprache(n): | Englisch | ||||
Tagung: | IABSE Conference: Elegance in structures, Nara, Japan, 13-15 May 2015 | ||||
Veröffentlicht in: | IABSE Conference Nara 2015 | ||||
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Seite(n): | 506-507 | ||||
Anzahl der Seiten (im PDF): | 8 | ||||
Jahr: | 2015 | ||||
DOI: | 10.2749/222137815815776078 | ||||
Abstrakt: |
This paper presents an analysis of tower-girder transverse pounding of a cable-stayed bridge during an earthquake. The study is based on observation on pounding occurrence that involves wind-shoe, side bearing, and tower-link of the Yokohama-Bay Bridge during the March 11, 2011 earthquake. The pounding mechanism is modelled by a simplified structural model using linear contact spring to simulate the contact force between tower and girder at wind-shoe. The model is verified by comparing the simulated and identified time-history responses, spectra, natural frequencies and shapes of the transverse modes. Using the verified model, the amount of pounding force is quantified and the effect of pounding force on wind-shoe is investigated in more detailed. The study also investigates transverse pounding force effect on the structure in general for earthquakes larger than the 2011 Great-East Japan earthquake. |
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Stichwörter: |
Schrägseilbrücke
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