Seismic Vulnerability Assessment of a RC Pedestrian Crossing

The paper addresses the seismic vulnerability assessment of a multi-span footbridge, prone to span unseating due to shorter seat lengths. The structure is representative of a series of pedestrian crossings located in the Southern part of Portugal, a region with a relevant seismicity. A probabilistic...

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Bibliographic Details
Published in:Journal of earthquake engineering : JEE 2020-05, Vol.24 (5), p.727-744
Main Authors: Cismaşiu, Corneliu, Santos, Filipe P. AmaranteDos, Perdigão, Rui A. Da Silva, Bernardo, Vasco M. S., Candeias, Paulo X., Carvalho, Alexandra R., Guerreiro, Luís M. C.
Format: Article
Language:English
Subjects:
Dowel Connection
Earthquake damage
Fragility
Fragility Curves
Incremental Dynamic Analysis
Material properties
Operational Modal Analysis
Pedestrian bridges
Pedestrian crossings
Pedestrians
Probability theory
Rc Footbridges
Seismic hazard
Seismic surveys
Seismic Vulnerability Assessment
Seismicity
Statistical analysis
Structural behavior
Vulnerability
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Summary:The paper addresses the seismic vulnerability assessment of a multi-span footbridge, prone to span unseating due to shorter seat lengths. The structure is representative of a series of pedestrian crossings located in the Southern part of Portugal, a region with a relevant seismicity. A probabilistic approach allows considering the variability of the seismic action and uncertainties in the definition of the material properties and/or structural behavior. Based on incremental dynamic analyses and corresponding fragility curves, it is shown that, for code compliance design acceleration, there is a significant probability that the structure will only suffer minor damage.
ISSN:1363-2469
1559-808X
DOI:10.1080/13632469.2018.1453399