Theoretical, experimental and simulation research on integral rocking and self-centering structure​

Theoretical, experimental and simulation research on integral rocking and self-centering structure​ | 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 Theoretical, experimental and simulation research on integral rocking and self-centering structure​ Yun Chen, Jinlin Wu, Jia Qin, Chenxu Gao This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9105509/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 5 You are reading this latest preprint version Abstract To overcome shortcomings that rocking steel frame structures require numerous internal self-centering joints and corresponding rocking interfaces, and reducing the special design requirements for infill walls and floor slabs to adapt to rocking displacement, this paper introduces a proposed integral rocking and self-centering structure (IRSS) based on integral thinking approach, and the superstructure of IRSS is the same as a conventional moment-resisting steel frame. Firstly, it elaborates on the structural composition and working principle. Then, a simplified mechanical analysis model and design procedure of the IRSS system was proposed. A 1/6 scaled steel frame model was fabricated for shaking table tests to investigate the seismic performance of IRSS, including deformation mode, damage state evolution and post-earthquake residual deformation. Finally, finite element simulations were performed on structures with different height-to-width and length-to-width ratios to evaluate the applicability of IRSS. Test results indicate that under seismic actions of different intensities, the steel frame mainly undergoes integral rigid body rotation around the centroid of the rocking layer. After maximum considered earthquakes (MCE), the residual deformation of the steel frame is nearly zero, and the local strains of the steel frame do not reach the yield strain. The natural vibration frequency of IRSS decreases by only 3.4% (X-direction) and 0.88% (Y-direction) after MCE, indicating negligible stiffness degradation. Furthermore, the expected proportion of rigid body displacement of IRSS obtained from mechanical analysis method agree well with experimental results, and IRSS can achieves excellent seismic performance with different height-to-width and length-to-width ratios through simulation results. Integral rocking Self-centering Deformation mode Rocking layer Shaking table test Full Text Supplementary Files Highlights.docx Cite Share Download PDF Status: Under Review Version 1 posted Reviewers agreed at journal 15 Apr, 2026 Reviewers invited by journal 15 Apr, 2026 Editor invited by journal 18 Mar, 2026 Editor assigned by journal 17 Mar, 2026 First submitted to journal 13 Mar, 2026 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-9105509","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":623623950,"identity":"5ead98f2-bf63-47b7-ab58-dbf0552dc3e2","order_by":0,"name":"Yun Chen","email":"","orcid":"","institution":"Hainan University","correspondingAuthor":false,"prefix":"","firstName":"Yun","middleName":"","lastName":"Chen","suffix":""},{"id":623623951,"identity":"1f07c12d-99a4-44bd-b25d-d638950f5914","order_by":1,"name":"Jinlin 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