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    Failure Modes and Bearing Capacity of High-Strength–Steel-Bearing-Type Bolted Connections

    Source: Journal of Structural Engineering:;2024:;Volume ( 150 ):;issue: 003::page 04024001-1
    Author:
    Jin Di
    ,
    Bowen Xiao
    ,
    Yongqing Li
    ,
    Yi Su
    ,
    Qian Zhang
    DOI: 10.1061/JSENDH.STENG-12814
    Publisher: ASCE
    Abstract: Bearing-type bolted connections are frequently used for steel structure connections and are typically small when used to connect high-strength steels. However, studies on the failure mode and ultimate bearing capacity of high-strength–steel-bearing-type bolted connections are, to our best knowledge, limited. To address this gap, experiments and numerical analysis were carried out to investigate bearing-type bolted connections with end distances and edge distances ranging from one time the bolt hole diameter to two times the bolt hole diameter. Eighteen specimens were fabricated using Q460, Q550, and Q690 alloys. The results showed that the specimens exhibited three failure modes: net cross-sectional; tearout; and splitting failures, where end distance and edge distance were two controlled parameters that determined the failure modes. This study introduces a novel data-driven method that leverages accumulated data from finite element models to accurately quantify the boundaries of various failure modes. It eliminates the requirement for numerous assumptions in complex mechanical derivations, specifically when deriving splitting failure boundaries resembling the bending of deep beams. Consequently, this method provides a reliable and feasible alternative for evaluating failure modes in specimens. It was demonstrated that the net cross-sectional failure could be avoided when end distance equaled one time the bolt hole diameter, indicating that it is feasible to lower the minimum of end distance to one time the bolt hole diameter. The ultimate bearing capacity with nonet cross-sectional failure increased linearly with end distance and nonlinearly with edge distance. Ultimate bearing capacity calculation methods for different failure modes considering end distance and edge distance, were proposed, and their accuracy was verified using experimental results from other studies.
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      Failure Modes and Bearing Capacity of High-Strength–Steel-Bearing-Type Bolted Connections

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4296818
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    • Journal of Structural Engineering

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    contributor authorJin Di
    contributor authorBowen Xiao
    contributor authorYongqing Li
    contributor authorYi Su
    contributor authorQian Zhang
    date accessioned2024-04-27T22:30:33Z
    date available2024-04-27T22:30:33Z
    date issued2024/03/01
    identifier other10.1061-JSENDH.STENG-12814.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4296818
    description abstractBearing-type bolted connections are frequently used for steel structure connections and are typically small when used to connect high-strength steels. However, studies on the failure mode and ultimate bearing capacity of high-strength–steel-bearing-type bolted connections are, to our best knowledge, limited. To address this gap, experiments and numerical analysis were carried out to investigate bearing-type bolted connections with end distances and edge distances ranging from one time the bolt hole diameter to two times the bolt hole diameter. Eighteen specimens were fabricated using Q460, Q550, and Q690 alloys. The results showed that the specimens exhibited three failure modes: net cross-sectional; tearout; and splitting failures, where end distance and edge distance were two controlled parameters that determined the failure modes. This study introduces a novel data-driven method that leverages accumulated data from finite element models to accurately quantify the boundaries of various failure modes. It eliminates the requirement for numerous assumptions in complex mechanical derivations, specifically when deriving splitting failure boundaries resembling the bending of deep beams. Consequently, this method provides a reliable and feasible alternative for evaluating failure modes in specimens. It was demonstrated that the net cross-sectional failure could be avoided when end distance equaled one time the bolt hole diameter, indicating that it is feasible to lower the minimum of end distance to one time the bolt hole diameter. The ultimate bearing capacity with nonet cross-sectional failure increased linearly with end distance and nonlinearly with edge distance. Ultimate bearing capacity calculation methods for different failure modes considering end distance and edge distance, were proposed, and their accuracy was verified using experimental results from other studies.
    publisherASCE
    titleFailure Modes and Bearing Capacity of High-Strength–Steel-Bearing-Type Bolted Connections
    typeJournal Article
    journal volume150
    journal issue3
    journal titleJournal of Structural Engineering
    identifier doi10.1061/JSENDH.STENG-12814
    journal fristpage04024001-1
    journal lastpage04024001-15
    page15
    treeJournal of Structural Engineering:;2024:;Volume ( 150 ):;issue: 003
    contenttypeFulltext
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