Accession Number : ADA430985

Title :   Atmospheric Icing and Tower Collapse in the United States

Descriptive Note : Conference paper

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH

Personal Author(s) : Mulherin, N. D.

PDF Url : ADA430985

Report Date : JUN 1996

Pagination or Media Count : 12

Abstract : CRREL has established a database of communication tower collapses (TV, AM, FM, CATV, microwave, cellular, and so forth) that have occurred in the United States due to atmospheric ice accretion. The information was compiled primarily from newspapers articles and telephone interviews, but also from a multitude of other sources. The database currently lists 140 such failures of towers, ranging in height from 40 to 2000 ft above ground level (agl), dating as far back as 1959. For each case, I am compiling the following information: 1) structural characteristics of the tower, 2) the geographic location and topography, 3) a description of the collapse, 4) concurrent weather, and 5) damage. The database is growing and therefore not fully analyzed. In many cases, data in all these topic areas do not exist or are not available; some data I have yet to obtain. Trends in the current information are presented.

Descriptors :   *ICE FORMATION, *COLLAPSE, *RADIO TOWERS, DATA BASES, POSITION(LOCATION), WEATHER, DAMAGE, STRUCTURAL PROPERTIES, FAILURE, TOPOGRAPHY.

Subject Categories : Snow, Ice and Permafrost
      Radio Communications
      Meteorology
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE