海洋平台隔振结构限位器设计  

Design of restrainer for offshore platform isolation structure

作　　者：张纪刚[1,2] 吴斌[2] 欧进萍[3] 

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033 [2]哈尔滨工业大学土木工程学院,哈尔滨150090 [3]大连理工大学土木水利学院,辽宁大连116024

出　　处：《哈尔滨工业大学学报》2009年第10期174-176,共3页Journal of Harbin Institute of Technology

基　　金：国家高技术研究发展计划(863计划)子课题(2001AA602015);国家自然科学基金资助项目(50809032);中国博士后科学基金第二批特别资助项目(200902540);中国博士后科学基金资助项目(20070421051)

摘　　要：为了保证海洋平台隔振结构在罕遇地震下的可靠性,避免隔振层导油管破裂而造成经济损失,利用锥形形状记忆合金阻尼器和摩擦阻尼器对其进行限位,基于结构振动控制理论分析了在罕遇地震作用下的减震效果及限位效果,分析结果表明锥形形状记忆合金限位器能对平台隔振结构进行有效地限位,限位效果好于摩擦阻尼限位器.锥形形状记忆合金阻尼器还具有自复位、多向耗能的优点,可较好地满足采油工艺要求.In order to ensure the reliability of ocean platform isolation structure under severe earthquake to avoid the break of oil tube, the cone shape memory alloy （SMA） restrainer and frictional restrainer are presented. The control effects and restraint effects are analyzed for ocean platform isolation structure subjected to severe earthquake based on control theory. The analysis results show that the cone SMA restrainer can effectively restrain the displacement of isolation layer, and the SMA restrainer is better than the frictional restrainer. Meanwhile, the SMA restrainer has advantages of self-ecentering and multidirectional energy dissipation, and can satisfy the demands of oil extraction technics better.

关 键 词：海洋平台 锥形形状记忆合金限位器 摩擦阻尼限位器 智能隔振 地震作用 

分 类 号：TU311[建筑科学—结构工程]