Seismic Response Characteristics of Fiber Reinforced Concrete

Seismic Response Characteristics of Fiber Reinforced Concrete | 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 Seismic Response Characteristics of Fiber Reinforced Concrete Yousra El Hankouri, Abdelouafi El Ghoulbzouri This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7528806/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 Seismic events have consistently caused substantial damage to civil infrastructure, highlighting the need for more resilient and energy dissipative structural systems Although Concrete remains the most extensively construction material in the building industry and ranks as the second most consumed substance by humans after water, it suffers from inherent limitations including brittleness, poor tensile performance, and inadequate energy dissipation capacity, which reduce its effectiveness under dynamic loading. To improve its performance, Fiber-Reinforced Concrete (FRC) has been developed by incorporating fibers such as steel, glass, polypropylene (PP), or carbon to the mix. These fibers help control cracking and improve both mechanical and dynamic properties. This study explores the seismic behavior of a three-story reinforced concrete building using different FRC configurations. Both single-fiber and hybrid-fiber mixes were tested, with fiber volume fractions ( \((V_f)\) ) ranging from 0.5% to 2.5%. Two major Moroccan earthquakes the 2004 Al Hoceima and the 2023 Al Haouz events were used as seismic inputs. Numerical simulations were carried out using the fourth-order Runge-Kutta (RK4) method. The results show that steel fibers improve stiffness and strength, while PP fibers enhance energy dissipation and damping. Hybrid combinations of fibers provided more balanced performance. Overall, the study confirms that carefully selected fiber types and ratios can significantly improve the seismic resilience of concrete structures. Concrete Fiber-Reinforced Concrete RK4 Earthquake 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. 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Concrete","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":"Concrete, Fiber-Reinforced Concrete, RK4, Earthquake","lastPublishedDoi":"10.21203/rs.3.rs-7528806/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7528806/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eSeismic events have consistently caused substantial damage to civil infrastructure, highlighting the need for more resilient and energy dissipative structural systems Although Concrete remains the most extensively construction material in the building industry and ranks as the second most consumed substance by humans after water, it suffers from inherent limitations including brittleness, poor tensile performance, and inadequate energy dissipation capacity, which reduce its effectiveness under dynamic loading. To improve its performance, Fiber-Reinforced Concrete (FRC) has been developed by incorporating fibers such as steel, glass, polypropylene (PP), or carbon to the mix. These fibers help control cracking and improve both mechanical and dynamic properties. This study explores the seismic behavior of a three-story reinforced concrete building using different FRC configurations. Both single-fiber and hybrid-fiber mixes were tested, with fiber volume fractions (\u003cspan class=\"InlineEquation\"\u003e\u003cspan class=\"mathinline\"\u003e\\((V_f)\\)\u003c/span\u003e\u003c/span\u003e) ranging from 0.5% to 2.5%. Two major Moroccan earthquakes the 2004 Al Hoceima and the 2023 Al Haouz events were used as seismic inputs. Numerical simulations were carried out using the fourth-order Runge-Kutta (RK4) method. The results show that steel fibers improve stiffness and strength, while PP fibers enhance energy dissipation and damping. Hybrid combinations of fibers provided more balanced performance. 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