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Load bearing capacity of an ice cover subjected to concentrated loads
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
1985 (English)In: Proceedings of the Fourth International Offshore Mechanics and Arctic Engineering Symposium: presented at Energy-Sources Technology Conference & Exhibition, Dallas, Texas, February 17-21,1985 / [ed] Jin S. Chung, New York: American Society of Mechanical Engineers , 1985, Vol. 2, 170-176 p.Conference paper (Refereed)
Abstract [en]

This work presents theoretical and field investigations of the bearing capacity of floating ice covers subjected to concentrated loads. The field tests were performed in the Gulf of Bothnia on columnar sea-ice with low salinity and with a thickness of 0. 4-0. 8 m. Thick plates with vertical anisotropy such as the tested ice covers have shown large local shear deformations and nonlinear creep. An empirical model is presented for the prediction of deflections based on curve fitting where these facts are taken into account. A modified strain-energy criteria or a local puncing are assumed to govern the failure. The failure load as a function of ice thickness and loading rate is plotted for a certain ice type. The bearing capacity of reinforced ice covers is compared with natural ice and the effect of different reinforcements such as wooden bars is discussed

Place, publisher, year, edition, pages
New York: American Society of Mechanical Engineers , 1985. Vol. 2, 170-176 p.
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-34868Local ID: 92e5aab0-ff91-11df-8b95-000ea68e967bOAI: oai:DiVA.org:ltu-34868DiVA: diva2:1008120
Conference
International Offshore Mechanics and Arctic Engineering Symposium : 17/02/1985 - 21/02/1985
Note
Godkänd; 1985; 20101204 (andbra)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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