Dual moment resisting-shear link frames: experimental and numerical investigation

Dual moment resisting-shear link frames: experimental and numerical investigation | 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 Dual moment resisting-shear link frames: experimental and numerical investigation Farid Mahmoudi, Alireza Rahai, Farzad Hatami This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2881355/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 Moment resisting frames (MRFs) are one of the most favorable systems, thanks to their appropriate performance and sufficient geometric flexibility. Despite these advantages, MRFs have limitations such as low stiffness and certain code limitations. This paper provides the experimental and numerical results of a novel dual lateral load resisting system. This dual system is proposed to combine the flexural and shear nonlinear behavior of MRFs with different lengths. In the proposed dual system, MRFs are combined with frames that have a shear link with a smaller cross-section at the mid-span. This combination transfers the first plastic hinges location from the beam ends of the MRFs to the mid-span of the shear link frames. Two 1/3-scale tests are performed in the strong floor lab, and the frames are tested under quasi-static cyclic loading. In addition to increasing the stiffness of the system, the novel dual system waives the code requirement to satisfy the constraint on the beam span-to-depth (span/depth) ratio. Furthermore, the new dual system improves the resilience of the system due to the substitutability of the shear link after an earthquake. Moreover, verified 3D finite element models of the moment resisting-shear link frames dual system are also used to demonstrate the performance of the new dual system. Dual system Experiment Finite element analysis Shear link frame (SLF) Moment resisting frame (MRF) Full Text 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. We do this by developing innovative software and high quality services for the global research community. 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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-2881355","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":198060448,"identity":"e3f69ed1-d4e1-4fa6-98db-5de3ea906dc2","order_by":0,"name":"Farid Mahmoudi","email":"","orcid":"","institution":"Amirkabir University of Technology","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Farid","middleName":"","lastName":"Mahmoudi","suffix":""},{"id":198060449,"identity":"fad582cd-561f-4feb-9ea6-17372c66d7ad","order_by":1,"name":"Alireza Rahai","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAqklEQVRIiWNgGAWjYFACHgaGhAoYx4BoLWfAFClaGNtgWogB5u1nD354OM8ucT8D88MPDAX3CGuROZOXLJG4LTmxh4HNWILBoJiwFgmGHAOgFmagFgYzoF8SiNDC/8b4R+KceqAW9m9EapHIMZNIbDgM1MJDrC0Sb8wsEo4dN+45zFMskUCcw3KMb/6oqZZtb2/f+OHDHyK0IAAzEJOkYRSMglEwCkYBbgAAQ9kvuRF8LqEAAAAASUVORK5CYII=","orcid":"","institution":"Amirkabir University of Technology","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Alireza","middleName":"","lastName":"Rahai","suffix":""},{"id":198060450,"identity":"df6504ae-70ae-4f04-896b-c19a19c0d10a","order_by":2,"name":"Farzad Hatami","email":"","orcid":"","institution":"Amirkabir University of Technology","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Farzad","middleName":"","lastName":"Hatami","suffix":""}],"badges":[],"createdAt":"2023-05-01 09:05:51","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-2881355/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-2881355/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":36941256,"identity":"68d5a1b1-ff07-4be1-85a5-770c814abbad","added_by":"auto","created_at":"2023-05-12 08:15:02","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1094709,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-2881355/v1_covered_d2989776-438f-403f-bb01-87d39457a4dc.pdf"}],"financialInterests":"","formattedTitle":"Dual moment resisting-shear link frames: experimental and numerical investigation","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":"Dual system, Experiment, Finite element analysis, Shear link frame (SLF), Moment resisting frame (MRF)","lastPublishedDoi":"10.21203/rs.3.rs-2881355/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-2881355/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Moment resisting frames (MRFs) are one of the most favorable systems, thanks to their appropriate performance and sufficient geometric flexibility. Despite these advantages, MRFs have limitations such as low stiffness and certain code limitations. This paper provides the experimental and numerical results of a novel dual lateral load resisting system. This dual system is proposed to combine the flexural and shear nonlinear behavior of MRFs with different lengths. In the proposed dual system, MRFs are combined with frames that have a shear link with a smaller cross-section at the mid-span. This combination transfers the first plastic hinges location from the beam ends of the MRFs to the mid-span of the shear link frames. Two 1/3-scale tests are performed in the strong floor lab, and the frames are tested under quasi-static cyclic loading. In addition to increasing the stiffness of the system, the novel dual system waives the code requirement to satisfy the constraint on the beam span-to-depth (span/depth) ratio. 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