Ice loading on a multifaceted conical structure
An upward breaking cone is a common shape proposed for arctic offshore structures. The conical shape will induce ice bending failure, and hence, reduce the horizontal ice forces on the structure. In order to save on fabrication costs, it may be desirable to approximate the smooth conical surface by...
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International Society of Offshore and Polar Engineers
1993
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:12328114 2023-05-15T15:05:34+02:00 Ice loading on a multifaceted conical structure Irani, M. B. Timco, Garry 1993-06-11 text https://nrc-publications.canada.ca/eng/view/object/?id=9af55a2a-86ba-4666-afcb-3669400ece5a https://nrc-publications.canada.ca/fra/voir/objet/?id=9af55a2a-86ba-4666-afcb-3669400ece5a unknown International Society of Offshore and Polar Engineers issn:10986189 The proceedings of the . International Offshore and Polar Engineering Conference, The Third International Offshore and Polar Engineering Conference, June 6-11, 1993, Singapore, Volume: 2, Publication date: 1993-06-11, Pages: 520–528 article 1993 ftnrccanada 2021-09-01T06:29:08Z An upward breaking cone is a common shape proposed for arctic offshore structures. The conical shape will induce ice bending failure, and hence, reduce the horizontal ice forces on the structure. In order to save on fabrication costs, it may be desirable to approximate the smooth conical surface by a series of flat faces or facets. The present paper documents an experimental test program which studies the ice loading on a multifaceted conical structure. AI: 50 model scale of a six-sided or six-faceted cone is tested. The model is instrumented to measure separately the ice loads on different parts of the structure. The face ted cone is subjected to a range of ice conditions representing level ice sheets and ridges. The present paper describes the model construction, associated instrumentation, the experimental techniques and test conditions for the model test program. The test results are presented in tabular form. Comparison is made of the experimental results with the predictions of two theoretical models developed for computing the ice forces on smooth cones. The forces measured on the multifaceted cone show reasonable agreement with the Ralston (1980) theoretical model. NRC publication: Yes Article in Journal/Newspaper Arctic National Research Council Canada: NRC Publications Archive Arctic Cones The ENVELOPE(78.344,78.344,-68.635,-68.635) Cones, The ENVELOPE(78.344,78.344,-68.635,-68.635) |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
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ftnrccanada |
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unknown |
description |
An upward breaking cone is a common shape proposed for arctic offshore structures. The conical shape will induce ice bending failure, and hence, reduce the horizontal ice forces on the structure. In order to save on fabrication costs, it may be desirable to approximate the smooth conical surface by a series of flat faces or facets. The present paper documents an experimental test program which studies the ice loading on a multifaceted conical structure. AI: 50 model scale of a six-sided or six-faceted cone is tested. The model is instrumented to measure separately the ice loads on different parts of the structure. The face ted cone is subjected to a range of ice conditions representing level ice sheets and ridges. The present paper describes the model construction, associated instrumentation, the experimental techniques and test conditions for the model test program. The test results are presented in tabular form. Comparison is made of the experimental results with the predictions of two theoretical models developed for computing the ice forces on smooth cones. The forces measured on the multifaceted cone show reasonable agreement with the Ralston (1980) theoretical model. NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Irani, M. B. Timco, Garry |
spellingShingle |
Irani, M. B. Timco, Garry Ice loading on a multifaceted conical structure |
author_facet |
Irani, M. B. Timco, Garry |
author_sort |
Irani, M. B. |
title |
Ice loading on a multifaceted conical structure |
title_short |
Ice loading on a multifaceted conical structure |
title_full |
Ice loading on a multifaceted conical structure |
title_fullStr |
Ice loading on a multifaceted conical structure |
title_full_unstemmed |
Ice loading on a multifaceted conical structure |
title_sort |
ice loading on a multifaceted conical structure |
publisher |
International Society of Offshore and Polar Engineers |
publishDate |
1993 |
url |
https://nrc-publications.canada.ca/eng/view/object/?id=9af55a2a-86ba-4666-afcb-3669400ece5a https://nrc-publications.canada.ca/fra/voir/objet/?id=9af55a2a-86ba-4666-afcb-3669400ece5a |
long_lat |
ENVELOPE(78.344,78.344,-68.635,-68.635) ENVELOPE(78.344,78.344,-68.635,-68.635) |
geographic |
Arctic Cones The Cones, The |
geographic_facet |
Arctic Cones The Cones, The |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
issn:10986189 The proceedings of the . International Offshore and Polar Engineering Conference, The Third International Offshore and Polar Engineering Conference, June 6-11, 1993, Singapore, Volume: 2, Publication date: 1993-06-11, Pages: 520–528 |
_version_ |
1766337242732691456 |