A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Simplified Approach for Fragility Analysis of Highway Bridges
In the Province of Québec seismic hazard is considered as moderate except for Charlevoix high seismicity region. However, the high population density in urban areas has the potential to increase the level of seismic risk. In this context, the evaluation of seismic impacts on urban bridges is crucial to mitigation, emergency and recovery planning for transportation network. The degree of bridge damage determines the cost and time required for repairs and the level of post-earthquake functionality of the bridge is determined by its capacity to carry traffic flow. For urban bridges network, potential damage is estimated by fragility analysis of typical prototype models representing bridge classes. The aim of this study is to propose a simplified fragility model to estimate potential seismic damage to bridges in Québec area. A simplified approach that has been implemented in Hazus earthquake loss estimation software is adapted to the seismic hazard and bridges properties in the province of Québec. Geometrical and material properties for typical bridges are applied to estimate bridges capacity. Median and standard deviation of respective capacity values are combined with demand spectra compatible to the regional seismicity in view of generating fragility curves for four damage states. Results are compared with literature fragility functions based on dynamic analysis of typical bridges in Québec.
Simplified Approach for Fragility Analysis of Highway Bridges
In the Province of Québec seismic hazard is considered as moderate except for Charlevoix high seismicity region. However, the high population density in urban areas has the potential to increase the level of seismic risk. In this context, the evaluation of seismic impacts on urban bridges is crucial to mitigation, emergency and recovery planning for transportation network. The degree of bridge damage determines the cost and time required for repairs and the level of post-earthquake functionality of the bridge is determined by its capacity to carry traffic flow. For urban bridges network, potential damage is estimated by fragility analysis of typical prototype models representing bridge classes. The aim of this study is to propose a simplified fragility model to estimate potential seismic damage to bridges in Québec area. A simplified approach that has been implemented in Hazus earthquake loss estimation software is adapted to the seismic hazard and bridges properties in the province of Québec. Geometrical and material properties for typical bridges are applied to estimate bridges capacity. Median and standard deviation of respective capacity values are combined with demand spectra compatible to the regional seismicity in view of generating fragility curves for four damage states. Results are compared with literature fragility functions based on dynamic analysis of typical bridges in Québec.
Simplified Approach for Fragility Analysis of Highway Bridges
Lecture Notes in Civil Engineering
Walbridge, Scott (editor) / Nik-Bakht, Mazdak (editor) / Ng, Kelvin Tsun Wai (editor) / Shome, Manas (editor) / Alam, M. Shahria (editor) / el Damatty, Ashraf (editor) / Lovegrove, Gordon (editor) / Diot, A. (author) / Farzam, A. (author) / Nollet, M.-J. (author)
Canadian Society of Civil Engineering Annual Conference ; 2021
Proceedings of the Canadian Society of Civil Engineering Annual Conference 2021 ; Chapter: 19 ; 203-214
2022-05-18
12 pages
Article/Chapter (Book)
Electronic Resource
English
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