Author(s): Dayong Zhang; Qianjin Yue; Baolin Tong
Linked Author(s):
Keywords: Ice-resistant structure; Ice-induced vibration; Failure modes
Abstract: Since the late 1980’s, several jacket offshore oil platforms were constructed in the northern part of China’s Bohai Sea, where sea water freezes every winter. These platforms were primarily designed to withstand an extreme static ice force. However, the observations on these platforms disclosed that intensive vibrations could be induced by sea ice. Based on monitoring data and structure analysis, the risk and failure modes of ice resist jacket structure are discussed in present paper. The results of the studies lead to the conclusion that jacket structures which only considered the extreme ice force exist potential risks posed by dynamic ice forces.
Year: 2008