Experimental Investigation of Reinforced Concrete Column Connections with Different Sizes and Orientations

Experimental Investigation of Reinforced Concrete Column Connections with Different Sizes and Orientations | 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 Experimental Investigation of Reinforced Concrete Column Connections with Different Sizes and Orientations Sara Hassan, Emad Abdel-Galil, Ezzaat A. Sallam This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6361934/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 This paper aims to investigate the behavior of connections between RC columns with different sections and directions due to architectural needs. Also, it presents a method to calculate the resistance of these connections. There is nothing in the various codes that is useful to determine the necessary recommendations when connecting columns with different sections and directions; the current research aims to cover this gap. In this research, eighteen RC column specimens were tested under concentric loading. Various parameters were studied as shapes, directions of columns, stirrups, column sizes, and slab confining effects. The research investigated the loads, axial displacement, and failure patterns for every specimen from the tested columns. Additionally, the outcomes from the 18 columns, including crack patterns, axial load paths, and axial shortening of columns, were analyzed. The experimental study revealed that the inclusion of the slab significantly enhances the connection's capacity for axial loads. Also, escalating the number of stirrups increases the bearing capacity of column connections. Finally, an axial load-carrying capacity prediction equation for these types of RC column connections was proposed. Column connections Axial loads Confining effect Failure modes Prediction equations 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. 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-6361934","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":464295950,"identity":"729684d2-d3b3-47ba-a50a-923815be5f44","order_by":0,"name":"Sara Hassan","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABCUlEQVRIiWNgGAWjYBCDBAjF818OSJCkRYbZmFQtNsyJDYS08Eu3X/7wc49dHn//8YefC3LY0jccP3vwwQcGOzndBuxaJOecKZPseZZcLHEjx1h6xhme3A1n8pINZzAkG5sdwK7F4EZOGgPPAaB7bvAwSPP2SORuOJBjJs3DcCBxGw4t9jdykj/+OVCfOP/88ce/ef8ZpBucf4Nfi4FE+gFpngOHEzccSACq5ElIANqLXwvQC2zSMgeOJ24EqrTm4TlgOPPGG2PDGQa4/cI/I/3xxzcHqhPnAR12G6hFnu98juGDDxV2cri0ACPOAJWvAFZpgEUlHLA/QOXLN+BTPQpGwSgYBSMRAADjQWMtUYzrEAAAAABJRU5ErkJggg==","orcid":"","institution":"Higher institute of engineering and technology in New Damietta","correspondingAuthor":true,"prefix":"","firstName":"Sara","middleName":"","lastName":"Hassan","suffix":""},{"id":464295951,"identity":"ba4cbd5b-d753-47ef-bc11-9d6338eea635","order_by":1,"name":"Emad Abdel-Galil","email":"","orcid":"","institution":"Port Said University","correspondingAuthor":false,"prefix":"","firstName":"Emad","middleName":"","lastName":"Abdel-Galil","suffix":""},{"id":464295952,"identity":"88ab929c-36aa-4f53-8761-1dcfb38c23b2","order_by":2,"name":"Ezzaat A. 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