TY - GEN

T1 - Fragility estimates for the Fabela Bridge in Mexico incorporating vibration field data

AU - Bisadi, V.

AU - Head, M.

AU - Gardoni, Paolo

AU - Hurlebaus, S.

AU - De Leon Escobedo, D.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - This study represents fragility estimates for the Fabela Bridge, a five-span concrete bridge in Toluca, Mexico. Vibration tests are conducted on the bridge and based on the recorded accelerations, vibration frequencies of the bridge are computed. Preliminary estimates of the structural properties of the bridge such as stiffness of bridge components are obtained from available information in design drawings. These properties are then updated by matching the vibration frequencies of a finite element model of the bridgewith the frequencies obtained from field data.The updated structural properties better reflect the actual conditions of the bridge and incorporate the effects of potential deterioration.Updated properties are used to estimate theshear and deformation capacitiesof each column in the Fabela Bridge and the corresponding seismic demands. Deformation and shear modes of failure for each column of the bridge are considered in the probabilistic models and fragility of the bridge for given spectral acceleration. Fragility curves are developed at both component and bridge levels.

AB - This study represents fragility estimates for the Fabela Bridge, a five-span concrete bridge in Toluca, Mexico. Vibration tests are conducted on the bridge and based on the recorded accelerations, vibration frequencies of the bridge are computed. Preliminary estimates of the structural properties of the bridge such as stiffness of bridge components are obtained from available information in design drawings. These properties are then updated by matching the vibration frequencies of a finite element model of the bridgewith the frequencies obtained from field data.The updated structural properties better reflect the actual conditions of the bridge and incorporate the effects of potential deterioration.Updated properties are used to estimate theshear and deformation capacitiesof each column in the Fabela Bridge and the corresponding seismic demands. Deformation and shear modes of failure for each column of the bridge are considered in the probabilistic models and fragility of the bridge for given spectral acceleration. Fragility curves are developed at both component and bridge levels.

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M3 - Conference contribution

AN - SCOPUS:84856704737

SN - 9780415669863

T3 - Applications of Statistics and Probability in Civil Engineering -Proceedings of the 11th International Conference on Applications of Statistics and Probability in Civil Engineering

SP - 1193

EP - 1199

BT - Applications of Statistics and Probability in Civil Engineering -Proceedings of the 11th International Conference on Applications of Statistics and Probability in Civil Engineering

T2 - 11th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP

Y2 - 1 August 2011 through 4 August 2011

ER -