Collapse fragility curves of RC piers with corroded rebars

Collapse fragility curves of RC piers with corroded rebars | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Collapse fragility curves of RC piers with corroded rebars Donatello Cardone, Giuseppe Perrone, Vito Possidente This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5701137/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 24 Jun, 2025 Read the published version in Bulletin of Earthquake Engineering → Version 1 posted 5 You are reading this latest preprint version Abstract Ageing and degradation of Reinforced Concrete (RC) bridges can significantly increase their seismic vulnerability and have a significant impact on expected economic losses. In this study, the seismic performance of typical single-shaft piers with corroded rebars is examined through extensive Multi-Stripe non-linear response time-history Analyses (MSA). Piers with different cross sections and heights, featuring different deterioration scenarios, characterized by different corrosion patterns and severity levels of corrosion, are investigated. MSA are performed using twenty pairs of ground motion records consistent with the seismic hazard of the cities of L’Aquila (central Italy) and Naples (southern Italy), for nine different earthquake intensity levels with return periods ranging from 50 to 100.000 years. Lognormal fragility curves associated with pier collapse are derived to account for record-to-record variability. Finally, the annual failure rates associated with collapse are derived to evaluate the structural reliability of each model both in the as-built and deteriorated conditions . Reinforced concrete piers corrosion of steel rebars corrosion modelling seismic performance fragility curve annual failure rate Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Full Text Additional Declarations Tables 1 to 2 are available in the Supplementary Files section Supplementary Files Table1.docx Table2.docx Cite Share Download PDF Status: Published Journal Publication published 24 Jun, 2025 Read the published version in Bulletin of Earthquake Engineering → Version 1 posted Editorial decision: Accept as is 06 Jun, 2025 Reviewers agreed at journal 09 May, 2025 Reviewers invited by journal 28 Apr, 2025 Editor assigned by journal 28 Apr, 2025 First submitted to journal 26 Apr, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-5701137","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":448977875,"identity":"b9f064d0-f496-43f6-8782-ac2be6f55ec2","order_by":0,"name":"Donatello 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rebars","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"bulletin-of-earthquake-engineering","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"beee","sideBox":"Learn more about [Bulletin of Earthquake Engineering](https://www.springer.com/journal/10518)","snPcode":"10518","submissionUrl":"https://submission.nature.com/new-submission/10518/3","title":"Bulletin of Earthquake Engineering","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer 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In this study, the seismic performance of typical single-shaft piers with corroded rebars is examined through extensive Multi-Stripe non-linear response time-history Analyses (MSA). Piers with different cross sections and heights, featuring different deterioration scenarios, characterized by different corrosion patterns and severity levels of corrosion, are investigated. MSA are performed using twenty pairs of ground motion records consistent with the seismic hazard of the cities of L’Aquila (central Italy) and Naples (southern Italy), for nine different earthquake intensity levels with return periods ranging from 50 to 100.000 years. Lognormal fragility curves associated with pier collapse are derived to account for record-to-record variability. 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