带储罐老龄导管架平台地震响应分析
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摘要
针对我国已有相当数量的平台进入老龄服役期的现状,且考虑到导管架平台储罐液体晃动的影响,应用有限元法,本着位移边界的一致性,分别建立模型,耦合液体晃动及平台地震响应。考虑平台腐蚀,采用ANSYS软件,利用时程分析方法,实例计算了老龄平台及新服役平台在2种地震波下的响应,得出不同储液深度平台减震率的影响及减震率与储液深度关系的初步结论。该计算结果可为平台超龄服役和提高老龄导管架平台的抗震能力提供参考。
In view of the present situation that there are so many platforms in our country have got into the old-age period,and considering the affection caused by the shake of the liquid in the storage tank on the jacket platform,the finite element method was used to separately build models,and to couple the shake of liquid and seismic response of platform according to the consistency of the displacement boundary conditions.Considering the corrosion of the platform,the software of ANSYS was adopted and the time-history analysis method was used to calculate the responses of the aged platform and the new platform in the condition of two kinds of seismic waves.The primary conclusion of the infection of different liquid height was got to the damping rate,along with the relationship between the damping rate and the liquid depth.This computational solution provided a referemce to the over-age service of platform and gave a way to enhance the anti-seismic ability of the aged jacket platform.
In view of the present situation that there are so many platforms in our country have got into the old-age period,and considering the affection caused by the shake of the liquid in the storage tank on the jacket platform,the finite element method was used to separately build models,and to couple the shake of liquid and seismic response of platform according to the consistency of the displacement boundary conditions.Considering the corrosion of the platform,the software of ANSYS was adopted and the time-history analysis method was used to calculate the responses of the aged platform and the new platform in the condition of two kinds of seismic waves.The primary conclusion of the infection of different liquid height was got to the damping rate,along with the relationship between the damping rate and the liquid depth.This computational solution provided a referemce to the over-age service of platform and gave a way to enhance the anti-seismic ability of the aged jacket platform.
引文
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[15]侯保荣.钢铁设施在海洋浪花飞溅区的腐蚀行为及其新型包覆防护技术[J].腐蚀与防护,2007,28(4):174-175.
[16]李书进,李桂青.结构控制中圆柱形浅水TLD的研究[J].特种结构,2000,17(4):45-48.
[2]方华灿,陈国明.海洋平台结构整体疲劳寿命的预测[J].石油矿场机械,2000,29(5):1-5.
[3]张宗峰,冯春健,丁红岩.埕岛油田服役中后期海洋平台冰激振动疲劳分析[J].石油矿场机械,2008,37(3):56-61.
[4]王浚璞,艾志久,李旭志,等.基于SACS的海洋平台疲劳可靠性分析[J].石油矿场机械,2008,37(9):24-27.
[5]梁会高,陈国明,惠富春.海洋平台损伤构件等效刚度分析及应用[J].石油矿场机械,2004,33(2):30-33.
[6]张用德,袁学强.我国海洋钻井平台发展现状与趋势[J].石油矿场机械,2008,37(9):14-17.
[7]栾苏,韩成才,王维旭,等.半潜式海洋钻井平台的发展[J].石油矿场机械,2008,37(11):90-93.
[8]赵国良,西月琦.基于等效刚度矩阵的导管架平台安全可靠性分析[J].石油矿场机械,2007,36(9):45-48.
[9]王世敬.导管架平台冰激振动响应分析[J].石油矿场机械,2007,36(9):21-24.
[10]李宏男,马百存.固定式海洋平台利用TLD的减震研究[J].海洋工程,1996,14(3):91-96.
[11]贾影,李宏男,宋岩升.TLD对海洋平台地震反应控制的简化计算方法[J].地震工程与工程振动,2002,22(3):160-164.
[12]嵇春艳.调谐质量阻尼器对海洋平台的减振效果分析[J].海洋技术,2005,24(5):114-120.
[13]林家浩,曲乃泗,孙焕纯.计算结构动力学[M].北京:高等教育出版社,1989.
[14]王进廷,杜修力,张楚汉.瑞利阻尼介质有限元离散模型动力分析的数值稳定性[J].地震工程与工程振动,2002,22(6):19-24.
[15]侯保荣.钢铁设施在海洋浪花飞溅区的腐蚀行为及其新型包覆防护技术[J].腐蚀与防护,2007,28(4):174-175.
[16]李书进,李桂青.结构控制中圆柱形浅水TLD的研究[J].特种结构,2000,17(4):45-48.
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