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Load bearing capacity of an ice cover subjected to concentrated loads
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och -produktion.
1985 (engelsk)Inngår i: 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, s. 170-176Konferansepaper, Publicerat paper (Fagfellevurdert)
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

sted, utgiver, år, opplag, sider
New York: American Society of Mechanical Engineers , 1985. Vol. 2, s. 170-176
HSV kategori
Forskningsprogram
Konstruktionsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-34868Lokal ID: 92e5aab0-ff91-11df-8b95-000ea68e967bOAI: oai:DiVA.org:ltu-34868DiVA, id: diva2:1008120
Konferanse
International Offshore Mechanics and Arctic Engineering Symposium : 17/02/1985 - 21/02/1985
Merknad
Godkänd; 1985; 20101204 (andbra)Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2017-11-25bibliografisk kontrollert

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