MEASURING SYSTEMS FOR ICE AND WIND LOADS ON A STEEL LIGHTHOUSE

A new type of lighthouse has been developed in Finland and the first two of them were completed during 1973. The lighthouse is a steel pipe with average wall thickness of 20 mm. Its diameter is 3,180 mm and total height 51 m. The first of them was erected outside Kemi by ramming the pipe 15 meters into the bottom of the Gulf of Bothnia. Its light construction in comparison with the conventional concrete lighthouses requires more accuracy in determining loads, specifically due to ice, wind and waves, to which the lighthouse will be subjected. This paper briefly describes the measuring system designed to work in temperatures ranging from minus 40 to plus 40 centigrade and in humidity under 90 percent. Maximum errors in measured values will be less than 5%. Drawings of the lighthouse, transducer, inclination measuring apparatus and a block diagram of the measuring system are included.

Media Info

  • Pagination: p. 671-678

Subject/Index Terms

Filing Info

  • Accession Number: 00095030
  • Record Type: Publication
  • Source Agency: Arctic Institute of North America
  • Files: TRIS
  • Created Date: May 19 1975 12:00AM