冰载荷作用下重力式平台的静动力分析  

Static and Dynamic Analysis of the Gravity Platform Under Ice Load

作　　者：潘天娓[1] 王银邦[1] 

机构地区：[1]中国海洋大学工程学院,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2012年第3期91-95,共5页Periodical of Ocean University of China

基　　金：国家高技术研究发展计划项目(2007AA09Z317)资助

摘　　要：重力式平台由于其自身特点,在中国海域有很好的应用前景。海冰作为1种不可避免的环境灾害,对重力式平台的破坏作用是不可忽视的。在重力式平台的设计和应用中必须充分考虑海冰的影响。海冰的破坏主要有静力的挤压破坏和瞬间的冲击破坏。本文考虑浅海重力式平台的建造特点,应用大型有限元分析软件Ansys对浅海重力式平台进行建模,模型建立后分别进行海冰的静动力分析。所得结果进行比较,得到在相同海冰情况下,其对重力式平台的静力挤压破坏要大于瞬时冲击破坏,在设计中应充分考虑海冰对结构物的挤压破坏。所得到的结论对重力式平台建造和应用有一定的指导意义。Because of their own advantages, the gravity platforms have a good application prospect in Chinese sea area. Ice load is one of the unavoidable environmental disaster. The effects of ice must be considered in the design and application of the gravity platform. The failure of the gravity platform under ice load mainly include crushing failure and instant failure. Considering the specificity of the platform, the gravity platform by the finite element analysis software ansys is modeled. Then we do the static and dynamic analysis about the model under ice load after modeling. Comparing the two examples, the result of static crushing failure is greater than the result of dynamic instant failure. The static crushing failure must be fully considered in the design and application of the gravity platform. The conclusion has some guiding significance for the construction and application of the gravity platform.

关 键 词：重力式平台 有限元 海冰 挤压破坏 瞬态响应 

分 类 号：TV31[水利工程—水工结构工程]