RELEVANCE OF ISO ICE CLASSES TO TOWER STRUCTURES

摘要：

The International Standard ISO 12494 gives a method to assess rime ice loads on complex structures. We present an analysis of the applicability of the ISO method based on field data that include ice masses measured simultaneously on the ISO standard ice collector, a 7.5 m tall self supported lattice structure and a 127 m tall guyed lattice tower. We compare ice masses on these three objects in different ice classes and calculate the ice masses expected on the structures based on the ISO method. The results show that the ISO Ice Classes are a useful tool in assessing rime ice loads on the structures, but that inaccuracies arise, partly related to poorly known ice shedding mechanisms.

作者: Lasse Makkonen Pertti Lehtonen Mika Hirviniemi

作者单位: VTT Technical Research Centre of Finland, Espoo, Finland Digita Oy, Helsinki, Finland

会议类型: 国际会议

会议名称: The 14th International Workshop on Atmospheric Icing of Structures(第十四届结构物大气覆冰国际研讨会 IWAIS 2011)

会议地点: 重庆

会议语种:英文

页码: 12

在线出版日期: 2011-05-08（万方平台首次上网日期，不代表论文的发表时间）