Ice loads on a rigid structure with a compliant foundation

From National Research Council Canada

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Author	Search for: Frederking, R. M. W.¹; Search for: Timco, G. W.
Affiliation	National Research Council of Canada. NRC Institute for Research in Construction
Format	Text, Article
Conference	9th Int. Conf. on Port and Ocean Engineering under Arctic Conditions 1987 (POAC-87): 17 August 1987, Fairbanks, Alaska, USA
Subject	ice; flexible foundations; stiffness; dynamic loads; impact loads; ice loads; foundation stiffness; foundation velocity; eg/ad/s model ice; longitudinal/ transverse loads; dynamic system characteristics; transfer function; fourier techniques; ice failure mode; Basements and foundations; glace (gel); fondation souple; raideur; sollicitation dynamique; force d'impact
Abstract	A test series has been carried out to study the behaviour of a rigid structure on a compliant foundation. The model, a 60-mm diameter cylinder, was attached to a base whose compliance could be varied. Ice loads on the structure were measured as a function of foundation stiffness (natural frequencies 9 to 50 Hz) and velocity (10 to 270 mm/s). EG/ AD/S model ice with an average flexural strength of 50 kPa and thickness 40 mm was used. Both longitudinal and transverse loads were measured. The dynamic characteristics of the system were measured and the transfer function determined and subsequently used to obtain corrected ice loads using Fourier techniques. The mode of ice failure was found to be a function primarily of velocity and to a lesser extent foundation stiffness. For high velocities and compliant foundations the ice load transferred through the foundation was magnified by as much as one third.
Publication date	1988
Language	English
Peer reviewed	Yes
Identifier	IRC-P-1624
NRC number	NRCC 31007 NRC-IRC-1388
NPARC number	20378497
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Record identifier	0c05cb0c-cc68-4e9f-950a-67ad1ecfdbb1
Record created	2012-07-24
Record modified	2020-06-06

Date modified:: 2024-07-25