Author(s): Kazuyuki Kato

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Abstract: In order to investigate the properties of ice forces which exert on a sloping structure, the application of the equation which represents the ice force as a sum of the breaking component and ride-up component was studied. For the ice forces which were obtained from the small-scale experiments for four conical structures with different slope angles, the equations for each slope angle were determined through the linear regression analysis. The relationship between the coefficients in the equation and the slope angle was investigated. As a result, the coefficients for the horizontal ice force were sensitive to a different slope angle, though the coefficients for the vertical ice force were not so sensitive. For horizontal ice force, the coefficient for the ride-up component was more sensitive than the breaking component. In general, it could be concluded that the coefficients, that is, the behavior of the ice forces for the slope angle was rational. Small-scale experiments for sloping structures other than conical structures were also performed, quadrangular and octagonal pyramid structures, and came to the same conclusions. From these results, the equation which attempted to represent the ice force gave a good approximation of the experimental ice force and it is expected that the equation may be applicable to a general sloping structure as well.

DOI:

Year: 1986