Journal article Open Access

Optimization of the structural coupling between RC frames, CLT shear walls and asymmetric friction connections

Aloisio, Angelo; Pelliciari, Matteo; Sirotti, Stefano; Boggian, Francesco; Tomasi, Roberto


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    "description": "<p>This paper focuses on the optimum design of the e-CLT technology. The e-CLT technology consists in adding cross laminated timber (CLT) walls to an existing reinforced concrete (RC) inflled frame via asymmetric friction connection (AFC). The authors carried out quasi-static and nonlinear dynamic analyses. The RC frame is modeled in OpenSees by fber-section-based elements with force based formulation. The contribution of the infill is simulated using a degrading data-driven Bouc&ndash;Wen model with a slip-lock element while the AFC is modelled with a modified Coulomb model. Different types of infill, aspect ratio, scaling, and member size are considered. The benefits of using e-CLT technology are discussed and the ranges of optimum performance of the AFC are estimated. A comparison of the performance of traditional infill with the e-CLT system is presented. The authors provide optimum intervals of the ratio between slip force and in-plane stiffness of the CLT panel, following energy and displacement-based criteria. The seismic displacement demand under various seismic scenario&nbsp;is investigated. Correlations between the RC characteristics and the optimum design ratios bestow possible criteria for the design of the AFC</p>", 
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    "title": "Optimization of the structural coupling between RC frames, CLT shear walls and asymmetric friction connections", 
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    "keywords": [
      "Seismic retrofitting, Asymmetric friction connections, Cross laminated timber panels, Reinforced concrete structures, Nonlinear dynamic analyses, OpenSees, Bouc\u2013 Wen model"
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    "publication_date": "2022-02-16", 
    "creators": [
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        "orcid": "0000-0002-6190-0139", 
        "affiliation": "University of l'Aquila", 
        "name": "Aloisio, Angelo"
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        "orcid": "0000-0002-0793-1524", 
        "affiliation": "University of Modena e Reggio Emilia", 
        "name": "Pelliciari, Matteo"
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        "orcid": "0000-0002-0937-9075", 
        "affiliation": "University of Modena e Reggio Emilia", 
        "name": "Sirotti, Stefano"
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        "affiliation": "University of Trento", 
        "name": "Boggian, Francesco"
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        "affiliation": "Norwegian University of Life Science", 
        "name": "Tomasi, Roberto"
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