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Rocking of Large Bridge Caissons Due To Seismic Excitation

Autor(en):
Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: Journal of Earthquake and Tsunami, , n. 4, v. 1
Seite(n): 329-345
DOI: 10.1142/s1793431107000201
Abstrakt:

Caisson foundations are massive structures that respond to seismic loads in a primarily rocking mode. This paper presents a case study on an existing bridge caisson where the capacity spectrum approach was used to evaluate the performance for a specific seismic event. The deformation capacity curve was evaluated from nonlinear static pushover of a three dimensional finite element model of the caisson embedded in the surrounding soil. The model included interface elements to capture gapping, sliding, and rocking of the caisson during the analysis. The nonlinear behavior of the soil was represented by a cap plasticity model, which is based on the well known Drucker–Prager yield condition and a non-associated flow rule. Alternatively, a theoretical approach was developed, using basic principles of structural mechanics and the half-space theory, to determine the capacity curve. Results of nonlinear static pushover methods compared favorably to nonlinear time history analyses.

Structurae kann Ihnen derzeit diese Veröffentlichung nicht im Volltext zur Verfügung stellen. Der Volltext ist beim Verlag erhältlich über die DOI: 10.1142/s1793431107000201.
  • Über diese
    Datenseite
  • Reference-ID
    10672167
  • Veröffentlicht am:
    03.06.2022
  • Geändert am:
    03.06.2022
 
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