Vertical distribution of ice load on tall masts and towers

Lasse Makkonen, Gregory Thompson, Bjorn Egil K. Nygaard, P. Lehtonen

    Research output: Contribution to journalArticleScientificpeer-review

    2 Citations (Scopus)

    Abstract

    Ice samples were collected at various heights on a 326 m tall guyed television mast equipped with anti-iced anemometers and thermometers. Ice loads on the mast were also simulated by the Weather Research and Forecasting model combined with a numerical icing model. The WRF model provided remarkably accurate predictions of the meteorological conditions and result in excellent estimates of the ice loads at different heights. A simple icing model, based on the observed weather data, also predicted ice loads in good agreement with the measurements. The results from both models support the approximate height distribution of the ice mass proposed in the ISO 12494 standard for atmospheric icing of structures.
    Original languageEnglish
    Pages (from-to)175-182
    Number of pages7
    JournalJournal of the International Association for Shell and Spatial Structures
    Volume55
    Issue number3
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Towers
    Ice
    Thermometers
    Anemometers
    Television
    Tower
    Weather

    Keywords

    • Ice load
    • Icing
    • Tower
    • Guyed mast
    • Height depencence

    Cite this

    Makkonen, Lasse ; Thompson, Gregory ; Nygaard, Bjorn Egil K. ; Lehtonen, P. / Vertical distribution of ice load on tall masts and towers. In: Journal of the International Association for Shell and Spatial Structures. 2014 ; Vol. 55, No. 3. pp. 175-182.
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    author = "Lasse Makkonen and Gregory Thompson and Nygaard, {Bjorn Egil K.} and P. Lehtonen",
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    Vertical distribution of ice load on tall masts and towers. / Makkonen, Lasse; Thompson, Gregory; Nygaard, Bjorn Egil K.; Lehtonen, P.

    In: Journal of the International Association for Shell and Spatial Structures, Vol. 55, No. 3, 2014, p. 175-182.

    Research output: Contribution to journalArticleScientificpeer-review

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    T1 - Vertical distribution of ice load on tall masts and towers

    AU - Makkonen, Lasse

    AU - Thompson, Gregory

    AU - Nygaard, Bjorn Egil K.

    AU - Lehtonen, P.

    PY - 2014

    Y1 - 2014

    N2 - Ice samples were collected at various heights on a 326 m tall guyed television mast equipped with anti-iced anemometers and thermometers. Ice loads on the mast were also simulated by the Weather Research and Forecasting model combined with a numerical icing model. The WRF model provided remarkably accurate predictions of the meteorological conditions and result in excellent estimates of the ice loads at different heights. A simple icing model, based on the observed weather data, also predicted ice loads in good agreement with the measurements. The results from both models support the approximate height distribution of the ice mass proposed in the ISO 12494 standard for atmospheric icing of structures.

    AB - Ice samples were collected at various heights on a 326 m tall guyed television mast equipped with anti-iced anemometers and thermometers. Ice loads on the mast were also simulated by the Weather Research and Forecasting model combined with a numerical icing model. The WRF model provided remarkably accurate predictions of the meteorological conditions and result in excellent estimates of the ice loads at different heights. A simple icing model, based on the observed weather data, also predicted ice loads in good agreement with the measurements. The results from both models support the approximate height distribution of the ice mass proposed in the ISO 12494 standard for atmospheric icing of structures.

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    KW - Icing

    KW - Tower

    KW - Guyed mast

    KW - Height depencence

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