Seismic Performance Assessment of a Retrofitted Bridge with Natural Rubber Isolators in Cold Weather Environments Using Fragility Surfaces

dc.citation.articleNumber4022040en_US
dc.citation.issueNumber6en_US
dc.citation.journalTitleJournal of Bridge Engineeringen_US
dc.citation.volumeNumber27en_US
dc.contributor.authorBandini, Pedro Alexandre Condeen_US
dc.contributor.authorSiqueira, Gustavo Henriqueen_US
dc.contributor.authorPadgett, Jamie Ellenen_US
dc.contributor.authorPaultre, Patricken_US
dc.date.accessioned2022-05-25T17:37:41Zen_US
dc.date.available2022-05-25T17:37:41Zen_US
dc.date.issued2022en_US
dc.description.abstractRubber-based seismic isolation has been demonstrated to be one of the most effective measures to protect structural elements from damage during earthquakes and a viable option to retrofit existing structures with poor seismic detailing. The main constituent of these isolation units is rubber, a material that is subject to stiffening when exposed to low air temperatures. In the case of isolated highway bridges, thermal stiffening might reduce the efficiency of isolators, transferring higher forces to the substructure. Assessment of the seismic response of retrofitted structures using rubber isolators in cold regions is thus necessary. Accordingly, in this study, the effect of low temperatures on the seismic performance of a highway bridge retrofitted with natural rubber (NR) isolators is quantified using a probabilistic framework based on fragility surfaces. From the component- and system-level surfaces, it is revealed that the effects of cold temperatures on highway bridges retrofitted with elastomeric isolators may be negligible, depending on the configuration of lateral restraining structures. However, when isolators are able to perform their function without impediment, their thermal stiffening might be significantly detrimental to the bridge’s substructure, mainly affecting bent columns.en_US
dc.identifier.citationBandini, Pedro Alexandre Conde, Siqueira, Gustavo Henrique, Padgett, Jamie Ellen, et al.. "Seismic Performance Assessment of a Retrofitted Bridge with Natural Rubber Isolators in Cold Weather Environments Using Fragility Surfaces." <i>Journal of Bridge Engineering,</i> 27, no. 6 (2022) ASCE: https://doi.org/10.1061/(ASCE)BE.1943-5592.0001873.en_US
dc.identifier.digitalASCE-BE-1943-5592-0001873en_US
dc.identifier.doihttps://doi.org/10.1061/(ASCE)BE.1943-5592.0001873en_US
dc.identifier.urihttps://hdl.handle.net/1911/112413en_US
dc.language.isoengen_US
dc.publisherASCEen_US
dc.rightsThis work is made available under the terms of the Creative Commons Attribution 4.0 International license, https://creativecommons.org/licenses/by/4.0/en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleSeismic Performance Assessment of a Retrofitted Bridge with Natural Rubber Isolators in Cold Weather Environments Using Fragility Surfacesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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