球形储罐基于性能的隔震设计
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摘要
以都江堰市的一个钢制球形储罐的抗震设计为背景,讨论了目前国内外球罐提高抗震能力的常用方法。一类是通过调整球罐本身的结构形式和改变支撑体系的尺寸和数量,另一类就是在球罐上增设减(隔)震耗能装置。在对这些方法进行粗略讨论的基础上,采用基础隔震理念,应用于都江堰市一种使用广泛的球罐的减震设计。通过球罐上面一些关键部位动力响应控制指标的选取,考察了隔震前后这些指标的变化,表明通过隔震措施能使球罐结构的抗震性能大大改善。本文的隔震设计分析过程可供类似球罐的隔震设计参考。
In this paper,the seismic design for a steel spherical tank in Dujiangyan City is taken as the background for discussing the reinforcement of tank in the earthquake,and the methods of enhancing the seismic capacity in steel spherical tank nowadays are discussed.The basic idea is divided into two categories: one is adjusting the spherical form or changing the size and number of support system;the other is adding the devices of energy-dissipated in structure.These methods are generally summarized,and then,the idea of adding rubber isolation in the structure is proposed in order to improve the seismic performance.Combined with the project of spherical tank in Dujiangyan City,the method of adding rubber isolation in the structure is used for analysis and comparison,the data in the original structure with the isolated structure are compared.The results show that the seismic behavior of spherical tank is significantly improved by base isolation.The analytic process in this article may take the example of the similar projects.
In this paper,the seismic design for a steel spherical tank in Dujiangyan City is taken as the background for discussing the reinforcement of tank in the earthquake,and the methods of enhancing the seismic capacity in steel spherical tank nowadays are discussed.The basic idea is divided into two categories: one is adjusting the spherical form or changing the size and number of support system;the other is adding the devices of energy-dissipated in structure.These methods are generally summarized,and then,the idea of adding rubber isolation in the structure is proposed in order to improve the seismic performance.Combined with the project of spherical tank in Dujiangyan City,the method of adding rubber isolation in the structure is used for analysis and comparison,the data in the original structure with the isolated structure are compared.The results show that the seismic behavior of spherical tank is significantly improved by base isolation.The analytic process in this article may take the example of the similar projects.
引文
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[14]GB50191-1993,构筑物抗震设计规范[S]GB50191-1993,Design Code for Anti-seismic of Special Structures[S](in Chinese)
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[16]GB50011-2010,建筑抗震设计规范[S]GB50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
[2]Shibata H.Seismic Hazard and Damage-Avoiding Disaster Through Simulation,Experiment and Experience[J].Journal of Pressure Vessel Technology,1999,(121):30～36
[3]Yao J T P.Concept of Structure Control[J],ASCE.Journal of the Structure Division,1972,98(7),120～150
[4]汪辉.液氨球罐的震后修复[J].化工机械,2008,9Wang Hui.The Restoration of Ammonia Tank after the Earthquake[J].Chemical Machinary,2008,9(in Chinese)
[5]姚顺.浅谈地震灾害对液氨球罐的影响[J].中国化工设备,2008,10Yao Shun.Chat to the Influence of Earthquake Disaster on Liquid Ammonia Spherical Tank[J].China Chemical Industry Equipment,2008,10(in Chinese)
[6]李永泰,顾永干.1000m3化工设备与管道[J].氧气球罐应力分析设计,2004,3Li Yong-tai,Gu Yong-gan.1000m3Chemical Equipment and Pipelines[J].Stress Analysis for Design of Oxygen Spherical Tank,2004,3(in Chinese)
[7]李永泰,黄金国.10000m3丁烷球罐结构研究及应力分析[J].化工设备与管道,2004,4Li Yong-tai,Huang Jin-guo.Research of10000m3Butane Spherical Tank and Stress Analysis[J].Chemical Equipment and pipelines,2004,4(in Chinese)
[8]李永泰,黄金国.球罐支柱型式及其与球壳连接的结构[J].压力容器,2003,(l20):10Li Yong-tai,Huang Jin-guo.Type of Spherical Tank Pillars and Its Connection with the Structure[J].Pressure Vessels,2003,(l20):10(in Chinese)
[9]林立明.球罐结构设计和抗震分析[J].华东理工大学学报,2002Lin Li-ming.Design of Spherical Tank Structure and Seismic Analysis[J].East China University of Science and Technology,2002(in Chinese)
[10]肖志刚.球形储液罐地震反应分析及减震方法研究[J].哈尔滨工程大学学报,2006,6:51～54Xiao Zhi-gang.Seismic Response Analysis of Spherical Tank and Absorption of Shock Method[J].Harbin Engineering University,2006,6:51～54(in Chinese)
[11]肖志刚.球形储液罐地震反应分析及减震方法研究[J].哈尔滨工程大学学报,2006,6:55～59Xiao Zhi-gang.Seismic Response Analysis of SphericalTank and Absorption of Shock Method[J].Harbin Engineering University,2006,6:55～59(in Chinese)
[12]王振,吴志平.1000m3球罐基础隔震分析[J].油气田地面工程,27(11):2Wang Zhen,Wu Zhi-ping.1000m3Spherical Tank Base Isolation Analysis[J].Oil and Gas Field Surface Engineering,27(11):2(in Chinese)
[13]宫城欣.球形储罐地震反应及结构控制研究[J].大庆石油学院学报,2007,3:7～9Gong Cheng-xin.Study on Seismic Response and Structure Control of Spherical Storage Tank[J].Journal of Da Qing Petroleum Institute,2007,3:7～9(in Chinese)
[14]GB50191-1993,构筑物抗震设计规范[S]GB50191-1993,Design Code for Anti-seismic of Special Structures[S](in Chinese)
[15]GB12237-1998,钢制球形储罐[S]GB12237-1998,Steel Spherical Tanks[S](in Chinese)
[16]GB50011-2010,建筑抗震设计规范[S]GB50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
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