Karl Terzaghi

Ice loads Ice loads crushing non-simultaneous ice ice ice

Latest

Bjerkås, M., Lehmann, T.Ø. (2011), "Design of new sub arctic structures in the light of 1969 Nygrån lighthouse collapse"- OMAE2011-49097, Rotterdam, Netherlands, June 2011 (In progress).

Books

Bjerkås, M. (2006), "Ice action on offshore structures - with aplications of continuous wavelet transforms on ice load signals", PhD Thesis, Norwegian University of Science and Technology, p. 176. (.pdf, 28 MB)

Løset, S., Bonnemaire, B and Bjerkås, M. (2003), "Proceedings of the 17'th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC)", Tapir Trykk, Trondheim Norway, p. 872 + CD-ROM. (link)

Journal articles

Bjerkås, M., Skiple, A. and Røe, O.I. "Application of Continuous Wavelet Transform on Ice Load signals", Engineering Structures, in press. (.pdf)

Bjerkås, M. (2006), "Wavelet transforms and ice actions on structures", Cold Regions Science and Technology, Volume 44, pp. 159-169. (pdf).

Bjerkås, M. (2004), "Global design ice loads' dependence on failure mode", International Journal of Offshore and Polar Engineering (IJOPE), Volume 14, Number 3, pp. 189-195. (pdf)

Conferences articles

Gürtner, A., Bjerkås, M., Forsberg, J. and Hilding, D. (2010), "Numerical model of a full scale ice event "- IAHR Ice Symposium 2010, Lathi, Finland, June 2010 (.pdf).

Bjerkås, M., Alsos, H.S., Hval, M., Lange, H. and Holden, O.M., (2010), "Pressure-Moment Capacity Curve for 16-inch pipe bends"- ISOPE-2010, Bejing, China, June 2010 (.pdf).

Bjerkås, M., Albrektsen, A. and Gürtner, A, (2010), "Static and dynamic ice loads in the light of new design codes"- OMAE2010-20036, Shanghai, China, June 2010 (.pdf).

Gürtner, A, Bjerkås, M., Kuenlein, W., Jochmann, P., Konuk, I. (2009), "Numerical Simulation of Ice Action to a Lighthouse" - OMAE2009-80164, Honolulu, Hawaii, USA, June 2009. (.pdf)

Bjerkås, M. (2007), "Review of measured full scale ice loads to fixed structures", Offshore Mechanics and Arctic Engineering conference 2007, San Diego, USA, June 2007, CD-proceedings. (.pdf)

Bjerkås, M. and Skiple, A. (2006), "Occurrence of continuous and intermittent crushing during ice-structure interaction", Conference paper .(pdf) pp. 1131-1140.

Bonnemaire, B. and Bjerkås, M. (2004), "Ice ridge-structure interaction, Part I: Geometry and failure modes of first-year ice ridges", IAHR-Ice Symposium, St. Petersburg, Russian Federation June 2004. 10 p. (pdf)

Bjerkås, M. and Bonnemaire, B. (2004), "Ice ridge-structure interaction
Part II: Loads from first-year ice ridges and their surrounding ice sheets", IAHR-Ice Symposium, St. Petersburg, Russian Federation June 2004. 10 p. (pdf)

Høyland, K.V., Bjerkås, M. and Vernyayev, S. (2004), "Mechanical properties of ice ridges and level ice, in-situ and laboratory testing", IAHR-Ice Symposium, Saint Petersburg, Russian Federation June 2004. 8 p. (pdf)

Bjerkås, M. (2004), "Global design ice loads dependence on failure mode", International Society of Offshore and Polar Engineers, ISOPE, Toulone, France, May 2004, pp. 871-877. (pdf)

Bjerkås, M., Moslet, P.O., Jochmann, P. and Løset, S. (2003), "Global ice loads on the lighthouse Norströmsgrund in the winter 2001", International Conference on Port and Ocean Engineering under Arctic Conditions, POAC, Trondheim, Norway, pp. 829-838. (pdf)

Reports

Bjerkås, M. (2002a), On the scaling of loads from sea ice exerted on marine structures, Project report in "AT313 Thermo mechanics of ice and snow and loads on structures", University Centre on Svalbard (UNIS), p. 15. (pdf)

Bjerkås, M. (2002b), Two failure criteria in common use for ice-structure interaction simulations, Project report in "DIB 7989 Non-linear finite element methods-basic principles", Norwegian University of Science and Technology (NTNU), p. 18. (pdf)

Bjerkås, M. (2003), Compressive behaviour of Norwegian Arctic Sea Ice under vertical and horizontal loading, Project report in "AT208 Thermo mechanical properties of materials", UNIS, p. 10. (pdf)

Bjerkås, M., Bonnemaire, B. and Jochmann, P. (2004), Magnitudes of global and local ice lods on the lighthouse Norströmsgrund winter 2002, p. 42. (link)

Bjerkås, M., Bonnemaire, B., Sodhi, D.S., Gerisch, S. and Jochmann, P. Extended observations of ice structure interaction at the lighthouse Norströmsgrund winter 2003 p. 40. (link)

Supervised student projects

Lehmann, T.Ø. (2010), Studies of the Nygrån lighthouse collapse (preliminar title), Norwegian University of Science and Technology

Bjoland, V.S. (2010), Studies of the Björnklack lighthouse collapse (preliminar title), Norwegian University of Science and Technology

Lønøy, C. (2009), Predefined loading function to represent dynamic ice loads, PhD project work, Norwegian University of Science and Technology

Albrektsen, A. (2009), “Prediction of the response from ice forces to a lighthouse structure”, Master Thesis, Norwegian University of Science and Technology (NTNU), 66+19 p.

Nordsve, A.C., (2008), Trawl impact on pipelines, Master Thesis, Norwegian University of Science and Technology.

Field experiences

Lighthouse Norströmsgrund in the Gulf of Bothnia 1 week 2002

Lighthouse Norströmsgrund winter 2003, two weeks.

Small scale indentation tests in the Van Mijen fjord, Svalbard.