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Fragility Curves for a Typical California Box Girder Bridge
Fragility analysis for highway bridges is essential for risk assessment of highway transportation networks exposed to seismic hazards. This study uses detailed nonlinear analytical models of a typical California box girder bridge to develop fragility curves which can be used in regional seismic risk assessment of transportation networks. The review of the bridge inventory in the state of California is first conducted using data from the 2008 National Bridge Inventory. Then a three-dimensional nonlinear finite element bridge model for the reference bridge is established and used in probabilistic seismic demand analysis. The analytical bridge model is calibrated using responses recorded during the 1979 Imperial Valley earthquake. Further component fragility analysis for the bridge model is also carried out. The component fragility curves indicate that the transverse abutment is the most vulnerable component of this bridge type at the slight damage state and the column is the most vulnerable component at the remaining damage states.
Fragility Curves for a Typical California Box Girder Bridge
Fragility analysis for highway bridges is essential for risk assessment of highway transportation networks exposed to seismic hazards. This study uses detailed nonlinear analytical models of a typical California box girder bridge to develop fragility curves which can be used in regional seismic risk assessment of transportation networks. The review of the bridge inventory in the state of California is first conducted using data from the 2008 National Bridge Inventory. Then a three-dimensional nonlinear finite element bridge model for the reference bridge is established and used in probabilistic seismic demand analysis. The analytical bridge model is calibrated using responses recorded during the 1979 Imperial Valley earthquake. Further component fragility analysis for the bridge model is also carried out. The component fragility curves indicate that the transverse abutment is the most vulnerable component of this bridge type at the slight damage state and the column is the most vulnerable component at the remaining damage states.
Fragility Curves for a Typical California Box Girder Bridge
Yang, C. S. (author) / DesRoches, R. (author) / Padgett, J. E. (author)
Technical Council on Lifeline Earthquake Engineering Conference (TCLEE) 2009 ; 2009 ; Oakland, California, United States
TCLEE 2009 ; 1-12
2009-06-24
Conference paper
Electronic Resource
English
Fragility Curves for a Typical California Box Girder Bridge
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