Ice loads on a lattice tower estimated by weather station data

Eva Sundin, Lasse Makkonen

    Research output: Contribution to journalArticleScientificpeer-review

    29 Citations (Scopus)

    Abstract

    Atmospheric ice loads are a major design criterion of tall structures in cold regions. In this paper the possibility to derive the design ice loads using analysis of meteorological observations made routinely at a weather station is studied.
    Ice loads calculated by extrapolating weather station data and using simplistic ice loading and unloading models are compared with those measured on a 323-m-height lattice TV tower. The comparison is made cumulatively in 3-h intervals over seven winter periods.
    The results show reasonable agreement in the time of the icing events and in overall loads. In the cases where the cumulative ice loads differ, the discrepancies are mostly due to incorrectly predicted unloading events.
    This study points out the importance of on-site temperature data for successfully estimating cumulative ice loads over long cold periods.
    Original languageEnglish
    Pages (from-to)523-529
    JournalJournal of Applied Meteorology
    Volume37
    Issue number5
    DOIs
    Publication statusPublished - 1998
    MoE publication typeA1 Journal article-refereed

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    Towers
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    Temperature

    Cite this

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    title = "Ice loads on a lattice tower estimated by weather station data",
    abstract = "Atmospheric ice loads are a major design criterion of tall structures in cold regions. In this paper the possibility to derive the design ice loads using analysis of meteorological observations made routinely at a weather station is studied. Ice loads calculated by extrapolating weather station data and using simplistic ice loading and unloading models are compared with those measured on a 323-m-height lattice TV tower. The comparison is made cumulatively in 3-h intervals over seven winter periods. The results show reasonable agreement in the time of the icing events and in overall loads. In the cases where the cumulative ice loads differ, the discrepancies are mostly due to incorrectly predicted unloading events. This study points out the importance of on-site temperature data for successfully estimating cumulative ice loads over long cold periods.",
    author = "Eva Sundin and Lasse Makkonen",
    year = "1998",
    doi = "10.1175/1520-0450(1998)037<0523:ILOALT>2.0.CO;2",
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    Ice loads on a lattice tower estimated by weather station data. / Sundin, Eva; Makkonen, Lasse.

    In: Journal of Applied Meteorology, Vol. 37, No. 5, 1998, p. 523-529.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Ice loads on a lattice tower estimated by weather station data

    AU - Sundin, Eva

    AU - Makkonen, Lasse

    PY - 1998

    Y1 - 1998

    N2 - Atmospheric ice loads are a major design criterion of tall structures in cold regions. In this paper the possibility to derive the design ice loads using analysis of meteorological observations made routinely at a weather station is studied. Ice loads calculated by extrapolating weather station data and using simplistic ice loading and unloading models are compared with those measured on a 323-m-height lattice TV tower. The comparison is made cumulatively in 3-h intervals over seven winter periods. The results show reasonable agreement in the time of the icing events and in overall loads. In the cases where the cumulative ice loads differ, the discrepancies are mostly due to incorrectly predicted unloading events. This study points out the importance of on-site temperature data for successfully estimating cumulative ice loads over long cold periods.

    AB - Atmospheric ice loads are a major design criterion of tall structures in cold regions. In this paper the possibility to derive the design ice loads using analysis of meteorological observations made routinely at a weather station is studied. Ice loads calculated by extrapolating weather station data and using simplistic ice loading and unloading models are compared with those measured on a 323-m-height lattice TV tower. The comparison is made cumulatively in 3-h intervals over seven winter periods. The results show reasonable agreement in the time of the icing events and in overall loads. In the cases where the cumulative ice loads differ, the discrepancies are mostly due to incorrectly predicted unloading events. This study points out the importance of on-site temperature data for successfully estimating cumulative ice loads over long cold periods.

    U2 - 10.1175/1520-0450(1998)037<0523:ILOALT>2.0.CO;2

    DO - 10.1175/1520-0450(1998)037<0523:ILOALT>2.0.CO;2

    M3 - Article

    VL - 37

    SP - 523

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    JO - Journal of Applied Meteorology and Climatology

    JF - Journal of Applied Meteorology and Climatology

    SN - 1558-8424

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