Effect of lateral deformations of a simply-supported beam bridge on high-speed railway traffic safety under earthquake action

Effect of lateral deformations of a simply-supported beam bridge on high-speed railway traffic safety under earthquake action | 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 Effect of lateral deformations of a simply-supported beam bridge on high-speed railway traffic safety under earthquake action wei huang, Yuehan Sun, Binghui Li, Qiang Zhang, Junhu Shao, Yulin Zhan This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2237153/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 26 Apr, 2024 Read the published version in Natural Hazards → Version 1 posted You are reading this latest preprint version Abstract To study the influence of the lateral deformations of a simply-supported beam bridge on the safety of high-speed railway train operations under earthquake action, this study adopted a three-span simply-supported beam bridge with 32-m spans as an example. Finite element software ANSYS and multi-body dynamics software SIMPACK were used to establish a coupled train-bridge dynamic model subjected to seismic excitations. By adopting different ground motions and changing the peak ground acceleration (PGA) and the train speed, the effects of different earthquakes and train speeds on the train driving safety were analyzed. Several conclusions were obtained. First, the trends in train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, vertical accelerations of the car body, lateral accelerations of car body, and other dynamic indices were similar under different ground motions, but the actual values were different. Second, the PGA had a significant impact on the train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, and lateral accelerations of the car body, but little effect on the vertical accelerations of the car body. Third, the train speed affected the train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, vertical accelerations of the car body, and lateral accelerations of the car body, and these dynamic performance indices were positively correlated with the train speed. Fourth, in case of the earthquake with a PGA of 0.3g, a high-speed train would have to travel slower than at 280 km/h to ensure the safety and comfort of the ride. Earthquake High speed railway Train-bridge coupled vibrations Driving safety Full Text Cite Share Download PDF Status: Published Journal Publication published 26 Apr, 2024 Read the published version in Natural Hazards → Version 1 posted 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-2237153","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":149818664,"identity":"baaf717f-7825-4c6c-8564-90c96cd989e5","order_by":0,"name":"wei 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Finite element software ANSYS and multi-body dynamics software SIMPACK were used to establish a coupled train-bridge dynamic model subjected to seismic excitations. By adopting different ground motions and changing the peak ground acceleration (PGA) and the train speed, the effects of different earthquakes and train speeds on the train driving safety were analyzed. Several conclusions were obtained. First, the trends in train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, vertical accelerations of the car body, lateral accelerations of car body, and other dynamic indices were similar under different ground motions, but the actual values were different. Second, the PGA had a significant impact on the train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, and lateral accelerations of the car body, but little effect on the vertical accelerations of the car body. 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Fourth, in case of the earthquake with a PGA of 0.3g, a high-speed train would have to travel slower than at 280 km/h to ensure the safety and comfort of the ride.\u003c/p\u003e","manuscriptTitle":"Effect of lateral deformations of a simply-supported beam bridge on high-speed railway traffic safety under earthquake action","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2022-11-09 19:37:31","doi":"10.21203/rs.3.rs-2237153/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"9e77f834-83e4-4d79-ac3c-25d7bce3f1d3","owner":[],"postedDate":"November 9th, 2022","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[],"tags":[],"updatedAt":"2024-05-01T22:24:49+00:00","versionOfRecord":{"articleIdentity":"rs-2237153","link":"https://doi.org/10.1007/s11069-024-06626-w","journal":{"identity":"natural-hazards","isVorOnly":false,"title":"Natural Hazards"},"publishedOn":"2024-04-26 22:24:49","publishedOnDateReadable":"April 26th, 2024"},"versionCreatedAt":"2022-11-09 19:37:31","video":"","vorDoi":"10.1007/s11069-024-06626-w","vorDoiUrl":"https://doi.org/10.1007/s11069-024-06626-w","workflowStages":[]},"version":"v1","identity":"rs-2237153","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-2237153","identity":"rs-2237153","version":["v1"]},"buildId":"7rjqhiLT3MXkJMwkYKINL","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}