2万m~3储液罐隔震应力分析
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摘要
采用ANSYS有限元软件,分别在锚固和非锚固情况下对某2万m3储液罐进行了隔震前后的地震响应分析,并考查了隔震装置的隔震基频和阻尼比的变化对储液罐隔震的影响。以动力响应中的最大应力值来评价隔震装置的隔震效果,以此分别确定了储液罐在锚固和非锚固状况下隔震装置的最佳隔震基频和阻尼比。
The influence of isolation frequency and damping ratio on the seismic response of an isolation storage tank with a volume of 20000m3 under both anchored and unanchored conditions is investigated using the finite element analysis(FEA) program ANSYS.Additionally,the isolation effect is estimated under the maximal stress in order to identify the optimal isolation frequency and damping ratio.
The influence of isolation frequency and damping ratio on the seismic response of an isolation storage tank with a volume of 20000m3 under both anchored and unanchored conditions is investigated using the finite element analysis(FEA) program ANSYS.Additionally,the isolation effect is estimated under the maximal stress in order to identify the optimal isolation frequency and damping ratio.
引文
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[2]孙建刚,周利剑,李晓莉,等.水平地震激励下储液罐液体晃动与提离分析[J].地震工程与工程振动,2007,27(5):134-138.Sun J G,Zhou L J,Li X L,et al.Sloshing of liquid andlifting of tank under hor izontal seismic ground motion[J].Journal of Earthquake Engineering and EngineeringVibration,2007,27(5):134-138.(in Chinese)
[3]孙建刚,宫克勤,齐含兵,等.水平地震作用下无锚固储液罐应力与应变响应分析[J].地震工程与工程振动,2007,27(3):110-115.Sun J G,Gong KQ,Qi HB,et al.Stress and stra in re-sponse ana lysis of unanchored tank under hor izonta l seism ic action[J].Journal of Earthquake Engineering andEngineering Vibration,2007,27(3):110-115.(inChinese)
[4]孙建刚,袁朝庆,郝进锋.圆柱储液容器提离控制研究[J].哈尔滨工业大学学报,2001,33(6):763-768.Sun J G,Yuan Z Q,Hao J F.Control study on uplift ofcolumn storage-liquid container[J].Journal of Harbin in-stitute of technology,2001,33(6):763-768.(in Chi-nese)
[5]孙建刚,袁朝庆,郝进锋.橡胶基底隔震储液罐地震模拟试验研究[J].哈尔滨工业大学学报,2005,37(6):806-809.Sun J G,Yuan Z Q,Hao J F.Experimental research onrubber base-isolation tank[J].Journal of Harbin instituteof technology,2005,37(6):806-809.(in Chinese)
[6]张云峰,袁朝庆,孙建刚.储液罐三维地震响应分析[J].大庆石油学院学报,2003,27(2):71-74.Zhang Y F,Yuan Z Q,Sun J Q.Seismic response analy-sis of three-dimension tank[J].Journal of Daqing Petro-leum Institute,2003,27(2):71-74.(in Chinese)
[7]刘文光,三山刚史,冯德民,等.橡胶隔震支座竖向刚度简化计算法[J].地震工程与工程振动,2001,21(4):111-116.Liu W G,Miyama T,Feng D M,et al.A simple methodfor computing vertical sties of rubber bearings[J].Jour-nal of Earthquake Engineering and Engineering Vibration,2001,21(4):111-116.(in Chinese)
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