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    Postfire Performance of Thread-Anchored Blind-Bolted Connection

    Source: Journal of Structural Engineering:;2023:;Volume ( 149 ):;issue: 012::page 04023173-1
    Author:
    Yang You
    ,
    Yang Li
    ,
    Chunjin Lin
    ,
    Peijun Wang
    ,
    Jihong Ye
    ,
    Jian Jiang
    DOI: 10.1061/JSENDH.STENG-12687
    Publisher: ASCE
    Abstract: The thread-anchored blind bolt (TBB) is anchored by a threaded bolt hole instead of a nut. It can only be mounted from one side, providing an alternative method to build the square hollow section column connection (SHSCC). A study on the change of mechanical behavior of a structural component after exposure to fire is the key to its reuse or repair after a fire. The tensile performance of TBB bolted SHSCC after a fire, and the effect of the internal strengthening component (ISC) was studied by experiments. The full-period method was adopted in the test to consider the influence of the load and temperature on the postfire behavior of the TBB bolted SHSCC. Two failure modes of the TBB bolted SHSCC were observed in the test, and the column wall thickness decided the failure mode. Increased load or temperature could cause the connection to fail previously in a fire but not change the failure mode. The TBB bolted SHSCC could recover most of its resistance after cooling down. Comparative tests were also conducted to assess the difference between the SHSCC bolted by TBB and standard bolt (SB). TBB and SB connections with the same configuration showed the same failure mode under the same condition. The TBB and SB connections demonstrated similar postfire performance when the column wall thickness was large. However, the SB connections showed a much better safety reserve than TBB ones when the column wall thickness was limited. The ISC improved the performance of TBB bolted SHSCC significantly when the column wall thickness was limited. The TBB bolted SHSCC strengthened by ISC could also be comparable to the TBB bolted ones.
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      Postfire Performance of Thread-Anchored Blind-Bolted Connection

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4296244
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    • Journal of Structural Engineering

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    contributor authorYang You
    contributor authorYang Li
    contributor authorChunjin Lin
    contributor authorPeijun Wang
    contributor authorJihong Ye
    contributor authorJian Jiang
    date accessioned2024-04-27T20:55:11Z
    date available2024-04-27T20:55:11Z
    date issued2023/12/01
    identifier other10.1061-JSENDH.STENG-12687.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4296244
    description abstractThe thread-anchored blind bolt (TBB) is anchored by a threaded bolt hole instead of a nut. It can only be mounted from one side, providing an alternative method to build the square hollow section column connection (SHSCC). A study on the change of mechanical behavior of a structural component after exposure to fire is the key to its reuse or repair after a fire. The tensile performance of TBB bolted SHSCC after a fire, and the effect of the internal strengthening component (ISC) was studied by experiments. The full-period method was adopted in the test to consider the influence of the load and temperature on the postfire behavior of the TBB bolted SHSCC. Two failure modes of the TBB bolted SHSCC were observed in the test, and the column wall thickness decided the failure mode. Increased load or temperature could cause the connection to fail previously in a fire but not change the failure mode. The TBB bolted SHSCC could recover most of its resistance after cooling down. Comparative tests were also conducted to assess the difference between the SHSCC bolted by TBB and standard bolt (SB). TBB and SB connections with the same configuration showed the same failure mode under the same condition. The TBB and SB connections demonstrated similar postfire performance when the column wall thickness was large. However, the SB connections showed a much better safety reserve than TBB ones when the column wall thickness was limited. The ISC improved the performance of TBB bolted SHSCC significantly when the column wall thickness was limited. The TBB bolted SHSCC strengthened by ISC could also be comparable to the TBB bolted ones.
    publisherASCE
    titlePostfire Performance of Thread-Anchored Blind-Bolted Connection
    typeJournal Article
    journal volume149
    journal issue12
    journal titleJournal of Structural Engineering
    identifier doi10.1061/JSENDH.STENG-12687
    journal fristpage04023173-1
    journal lastpage04023173-13
    page13
    treeJournal of Structural Engineering:;2023:;Volume ( 149 ):;issue: 012
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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