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    Parametric Analysis of the Flexural Bearing Capacity and Ductility of Hybrid Steel I-Section Beams

    Source: Journal of Structural Engineering:;2024:;Volume ( 150 ):;issue: 006::page 04024052-1
    Author:
    Jin Di
    ,
    Jie Wang
    ,
    Yuxuan Han
    ,
    Xiankui Wei
    ,
    Heng Zhu
    ,
    Fengjiang Qin
    DOI: 10.1061/JSENDH.STENG-13123
    Publisher: ASCE
    Abstract: Considering the advantages of hybrid steel I-section beams in reducing engineering costs and fully utilizing the mechanical properties of steel, and the lack of research on their ductility, hybrid steel I-section beams were tested to analyze the effects of the plate width–thickness ratio and steel strength matching on the flexural bearing capacity and ductility. The steel strength matching of the hybrid steel I-section beam with a high steel strength utilization rate and good ductility was related closely to the section size. Additionally, a parametric analysis based on the finite- element method was performed for further study. The steel strength ratio φ of the web to the flange with the best ductility was less than 1, and φ decreased with an increase in flange steel strength. The steel strength utilization rate and ductility decreased with an increase in φ. Based on the parametric analysis results, the optimal range of φ in hybrid-steel I-section beams with flange steel strength of 460–690 MPa was 0.56–1. The plate width–thickness ratio limit of the ductile section decreased with the decrease of φ. Considering the plate interaction and steel strength matching, a sectional ductility design method is proposed that is more applicable to hybrid steel I-section beams than existing methods.
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      Parametric Analysis of the Flexural Bearing Capacity and Ductility of Hybrid Steel I-Section Beams

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4296848
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    contributor authorJin Di
    contributor authorJie Wang
    contributor authorYuxuan Han
    contributor authorXiankui Wei
    contributor authorHeng Zhu
    contributor authorFengjiang Qin
    date accessioned2024-04-27T22:31:21Z
    date available2024-04-27T22:31:21Z
    date issued2024/06/01
    identifier other10.1061-JSENDH.STENG-13123.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4296848
    description abstractConsidering the advantages of hybrid steel I-section beams in reducing engineering costs and fully utilizing the mechanical properties of steel, and the lack of research on their ductility, hybrid steel I-section beams were tested to analyze the effects of the plate width–thickness ratio and steel strength matching on the flexural bearing capacity and ductility. The steel strength matching of the hybrid steel I-section beam with a high steel strength utilization rate and good ductility was related closely to the section size. Additionally, a parametric analysis based on the finite- element method was performed for further study. The steel strength ratio φ of the web to the flange with the best ductility was less than 1, and φ decreased with an increase in flange steel strength. The steel strength utilization rate and ductility decreased with an increase in φ. Based on the parametric analysis results, the optimal range of φ in hybrid-steel I-section beams with flange steel strength of 460–690 MPa was 0.56–1. The plate width–thickness ratio limit of the ductile section decreased with the decrease of φ. Considering the plate interaction and steel strength matching, a sectional ductility design method is proposed that is more applicable to hybrid steel I-section beams than existing methods.
    publisherASCE
    titleParametric Analysis of the Flexural Bearing Capacity and Ductility of Hybrid Steel I-Section Beams
    typeJournal Article
    journal volume150
    journal issue6
    journal titleJournal of Structural Engineering
    identifier doi10.1061/JSENDH.STENG-13123
    journal fristpage04024052-1
    journal lastpage04024052-14
    page14
    treeJournal of Structural Engineering:;2024:;Volume ( 150 ):;issue: 006
    contenttypeFulltext
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