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

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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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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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AU - Nygaard, Bjorn Egil K.

AU - Lehtonen, P.

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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

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KW - Height depencence

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