Theoretical Study on the Ultimate Capacity of Partially Encased Composite Beams with Web Openings

Theoretical Study on the Ultimate Capacity of Partially Encased Composite Beams with Web Openings | 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 Theoretical Study on the Ultimate Capacity of Partially Encased Composite Beams with Web Openings Meng Ye, Tao Wu, Peng Wang, Dangshu Zhao, Huaxian Fan, Jiali Chen This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7395490/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 28 Nov, 2025 Read the published version in Scientific Reports → Version 1 posted 11 You are reading this latest preprint version Abstract Based on the failure mechanism of traditional steel-concrete composite vierendeel trusses, this study investigates the internal force conditions during failure of Partially Encased Composite Beams with web openings. By neglecting the contribution of concrete tension and steel compression to ultimate bearing capacity, four secondary moment equations were developed with axial force and bending moment as variables. Addressing the plastic hinge regions formed at the four corners of web openings in composite beams, a calculation method for the ultimate bearing capacity of Partially Encased Composite Beams with web openings is proposed. The calculation results demonstrate that: Filling concrete on both sides of I-shaped steel beams with web openings enhances their shear and flexural capacities; Opening dimensions are critical parameters influencing the ultimate bearing capacity of such composite beams. A half-symmetrical finite element model was established to verify the accuracy of the proposed calculation method. Physical sciences/Engineering Physical sciences/Materials science Physical sciences/Physics Web opening Partially Encased Composite beams Vierendeel truss Ultimate bearing capacity Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 28 Nov, 2025 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 08 Oct, 2025 Reviews received at journal 08 Oct, 2025 Reviews received at journal 07 Oct, 2025 Reviewers agreed at journal 03 Oct, 2025 Reviewers agreed at journal 28 Sep, 2025 Reviewers agreed at journal 28 Sep, 2025 Reviewers invited by journal 11 Sep, 2025 Editor assigned by journal 02 Sep, 2025 Editor invited by journal 02 Sep, 2025 Submission checks completed at journal 21 Aug, 2025 First submitted to journal 21 Aug, 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. 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-7395490","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":514753048,"identity":"91c23297-1a88-44e3-bcda-e482c70f5c6e","order_by":0,"name":"Meng Ye","email":"","orcid":"","institution":"Kunming University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Meng","middleName":"","lastName":"Ye","suffix":""},{"id":514753049,"identity":"520c8b8f-931f-4728-b123-a3dcf3b46568","order_by":1,"name":"Tao 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