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    Wind-Resistance and Failure Analyses of a Lightning-Damaged Transmission Tower

    Source: Journal of Performance of Constructed Facilities:;2018:;Volume ( 032 ):;issue: 001
    Author:
    Xing Fu
    ,
    Hong-Nan Li
    ,
    Jia-Xiang Li
    DOI: 10.1061/(ASCE)CF.1943-5509.0001121
    Publisher: American Society of Civil Engineers
    Abstract: This paper estimates the wind-resistance of a lightning-damaged transmission tower. The buckling cause of a tower member under lightning excitation is reexamined through an overall tower model, and the modelling method of the lightning-damaged transmission tower is presented. The static wind-resistance of a transmission tower is estimated with the consideration of initial eccentricity and nonlinear behaviors of material and geometry, and two influencing parameters are discussed. According to the simulation results, the basic wind speed of collapse decreases dramatically due to lightning damage, and the collapse modes of the original and lightning-damaged towers are very different. As a consequence, more attention should be paid to lightning damage of transmission towers.
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      Wind-Resistance and Failure Analyses of a Lightning-Damaged Transmission Tower

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4244254
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    contributor authorXing Fu
    contributor authorHong-Nan Li
    contributor authorJia-Xiang Li
    date accessioned2017-12-30T12:59:30Z
    date available2017-12-30T12:59:30Z
    date issued2018
    identifier other%28ASCE%29CF.1943-5509.0001121.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4244254
    description abstractThis paper estimates the wind-resistance of a lightning-damaged transmission tower. The buckling cause of a tower member under lightning excitation is reexamined through an overall tower model, and the modelling method of the lightning-damaged transmission tower is presented. The static wind-resistance of a transmission tower is estimated with the consideration of initial eccentricity and nonlinear behaviors of material and geometry, and two influencing parameters are discussed. According to the simulation results, the basic wind speed of collapse decreases dramatically due to lightning damage, and the collapse modes of the original and lightning-damaged towers are very different. As a consequence, more attention should be paid to lightning damage of transmission towers.
    publisherAmerican Society of Civil Engineers
    titleWind-Resistance and Failure Analyses of a Lightning-Damaged Transmission Tower
    typeJournal Paper
    journal volume32
    journal issue1
    journal titleJournal of Performance of Constructed Facilities
    identifier doi10.1061/(ASCE)CF.1943-5509.0001121
    page04017127
    treeJournal of Performance of Constructed Facilities:;2018:;Volume ( 032 ):;issue: 001
    contenttypeFulltext
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