Shear Performance and Calculation Model of Stud Connectors for Steel-SFRC Composite Beams

Shear Performance and Calculation Model of Stud Connectors for Steel-SFRC Composite Beams | 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 Article Shear Performance and Calculation Model of Stud Connectors for Steel-SFRC Composite Beams Chengjin Zhu, Jingliang Ye, Pandong Hu, Bolun Li, Chuan Chen, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7439671/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In order to explore the shear performance and calculation model of the stud connectors in steel - steel fiber reinforced concrete (SFRC) composite beams, push - out tests were carried out on six stud connectors, The effects that stud diameter, length, yield strength, tensile strength, and concrete type had on the shear performance of stud connectors were analyzed through the combination of test results and finite - element simulation. It is demonstrated by the results that the key shear failure pattern of the stud connectors is the shear fracture occurring at the bottom of the studs. The shear - bearing ability of the stud connectors is significantly influenced by the size of the studs. Compared with the stud connectors of 13 mm diameter, those with 16 mm and 19 mm diameters have an average increase of 54% and 77% in ultimate shear capacity, respectively. Compared with plain concrete specimens, SFRC specimens have higher shear capacity and stiffness but lower ductility. In the case of a high concrete strength grade, the studs are the primary determinants of the shear capacity of the connectors. Setting an appropriate effective length of the studs exerts a slight influence on the load - slip curve of the connectors. Boosting the yield strength and ultimate tensile strength of the stud material fails to remarkably improve the shear capacity or change the final slip. Under the stud shear failure mode, The exponential function fits well with the load - slip curve model. Additionally, the modified equation for calculating shear capacity can be applied to compute the shear capacity of stud connectors in steel - SFRC composite beams. The research can provide basis for engineering design. Physical sciences/Engineering Physical sciences/Materials science Shear performance Stud connector Steel fiber reinforced concrete Load slip curve Push-out test Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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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-7439671","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":511128272,"identity":"c608217b-e4af-4b98-90c8-299fd887f3da","order_by":0,"name":"Chengjin Zhu","email":"","orcid":"","institution":"Wuhan Yucheng Qianli Construction Co.,Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Chengjin","middleName":"","lastName":"Zhu","suffix":""},{"id":511128274,"identity":"578f572c-0574-4dfe-bf69-cc38dbbb8ef5","order_by":1,"name":"Jingliang Ye","email":"","orcid":"","institution":"Wuhan Yucheng Qianli Construction Co.,Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Jingliang","middleName":"","lastName":"Ye","suffix":""},{"id":511128276,"identity":"84500434-c4e8-4050-ac6f-97984cdc138a","order_by":2,"name":"Pandong Hu","email":"","orcid":"","institution":"Wuhan Yucheng Qianli Construction Co.,Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Pandong","middleName":"","lastName":"Hu","suffix":""},{"id":511128277,"identity":"6c6614cc-b1dc-428f-8eff-54ccd0d2e7b8","order_by":3,"name":"Bolun Li","email":"","orcid":"","institution":"Wuhan Yucheng Qianli Construction Co.,Ltd.","correspondingAuthor":false,"prefix":"","firstName":"Bolun","middleName":"","lastName":"Li","suffix":""},{"id":511128278,"identity":"20dc6d28-d638-41dd-b9aa-161f410eb233","order_by":4,"name":"Chuan Chen","email":"","orcid":"","institution":"Wuhan University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Chuan","middleName":"","lastName":"Chen","suffix":""},{"id":511128281,"identity":"1cf91bb7-4f1d-4efc-b0a7-627b7e9f9e22","order_by":5,"name":"Jinfeng Fan","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAy0lEQVRIiWNgGAWjYBACfmbGxgcfftjwsLE3HyBOi2Q7c7PhzJ40OX6eYwnEaTE4z94mzcN2yFhyho8BkS47zNgmOYPnQOKGGzwfb7xhsJPTbSCgg7GZsdnig8WdxA23ezdbzmFINjY7QEALM9D7N2fwPEvccOfsNmkehgOJ2whpYWNmbAD65TDQYTnPiNPCw8zYBNIC9H4OG3FaJJgZ4YFsbDnHgAi/2J8//hAWlQ9vvKmwkyOoBdVKHmKjBkkLqTpGwSgYBaNgRAAAjHxF2Zx5+W0AAAAASUVORK5CYII=","orcid":"","institution":"Wuhan University of Science and Technology","correspondingAuthor":true,"prefix":"","firstName":"Jinfeng","middleName":"","lastName":"Fan","suffix":""}],"badges":[],"createdAt":"2025-08-23 08:08:26","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7439671/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7439671/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":100359200,"identity":"35a3092f-fe5f-48ed-afe1-0314e9f48292","added_by":"auto","created_at":"2026-01-16 07:21:49","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1035181,"visible":true,"origin":"","legend":"","description":"","filename":"sciencereportssubmission.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7439671/v1_covered_dca576c4-7c1f-47e5-a707-f053998ee203.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Shear Performance and Calculation Model of Stud Connectors for Steel-SFRC Composite Beams","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"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},"keywords":"Shear performance, Stud connector, Steel fiber reinforced concrete, Load slip curve, Push-out test","lastPublishedDoi":"10.21203/rs.3.rs-7439671/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7439671/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn order to explore the shear performance and calculation model of the stud connectors in steel - steel fiber reinforced concrete (SFRC) composite beams, push - out tests were carried out on six stud connectors, The effects that stud diameter, length, yield strength, tensile strength, and concrete type had on the shear performance of stud connectors were analyzed through the combination of test results and finite - element simulation. It is demonstrated by the results that the key shear failure pattern of the stud connectors is the shear fracture occurring at the bottom of the studs. The shear - bearing ability of the stud connectors is significantly influenced by the size of the studs. Compared with the stud connectors of 13 mm diameter, those with 16 mm and 19 mm diameters have an average increase of 54% and 77% in ultimate shear capacity, respectively. Compared with plain concrete specimens, SFRC specimens have higher shear capacity and stiffness but lower ductility. In the case of a high concrete strength grade, the studs are the primary determinants of the shear capacity of the connectors. Setting an appropriate effective length of the studs exerts a slight influence on the load - slip curve of the connectors. Boosting the yield strength and ultimate tensile strength of the stud material fails to remarkably improve the shear capacity or change the final slip. Under the stud shear failure mode, The exponential function fits well with the load - slip curve model. Additionally, the modified equation for calculating shear capacity can be applied to compute the shear capacity of stud connectors in steel - SFRC composite beams. The research can provide basis for engineering design.\u003c/p\u003e","manuscriptTitle":"Shear Performance and Calculation Model of Stud Connectors for Steel-SFRC Composite Beams","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-09-12 17:53:32","doi":"10.21203/rs.3.rs-7439671/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":"5f9c72a4-9256-4c86-ac96-4840417f3108","owner":[],"postedDate":"September 12th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":54297649,"name":"Physical sciences/Engineering"},{"id":54297650,"name":"Physical sciences/Materials science"}],"tags":[],"updatedAt":"2026-01-09T12:09:15+00:00","versionOfRecord":[],"versionCreatedAt":"2025-09-12 17:53:32","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7439671","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7439671","identity":"rs-7439671","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}