0
  • DE
  • EN
  • FR
  • International Database and Gallery of Structures

Advertisement

Influence of Vertical Ground Motions on the Seismic Fragility Modeling of a Bridge-Soil-Foundation System

Author(s):


Medium: journal article
Language(s): English
Published in: Earthquake Spectra, , n. 3, v. 29
Page(s): 937-962
DOI: 10.1193/1.4000170
Abstract:

This paper explores the effects of vertical ground motions (VGMs) on the component fragility of a coupled bridged-soil-foundation (CBSF) system with liquefaction potential, and highlights the unique considerations on the demand and capacity model required for fragility analysis under VGMs. Optimal intensity measures (IMs) that account for VGMs are identified. Moreover, fragility curves that consider capacity change with fluctuating axial force are derived. Results show that the presence of VGMs has a minor effect on the failure probabilities of piles and expansion bearings, while it has a great influence on fixed bearings. Whether VGMs have an impact on column fragilities depends on the design axial load ratio. Finally, more accurate fragility surfaces are derived, which are compared with results of conventional fragility curves. This study highlights the important role that VGMs play in the selection of optimal IMs, and the capacity and fragility representation of certain components of CBSF systems.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1193/1.4000170.
  • About this
    data sheet
  • Reference-ID
    10672560
  • Published on:
    28/05/2022
  • Last updated on:
    28/05/2022
 
Structurae cooperates with
International Association for Bridge and Structural Engineering (IABSE)
e-mosty Magazine
e-BrIM Magazine