“3·10”盈江地震管道节点破坏机理及抗震对策研究
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摘要
"3·10"盈江地震发生后,架空供水主管节点遭到了破坏,导致震后供水障碍。运用SAP2000软件模拟了地震作用下管道的受力、变形等情况,并运用有限元软件ANSYS对法兰盘进行了局部受力分析,总结出供水主管节点的破坏机理。针对破坏机理,提出了带橡胶垫层的槽型管道支架的抗震加固方式,并利用ANSYS软件研究了带橡胶垫层与不带橡胶垫的槽型支座在节点位移、速度、应力以及相邻节点位移差值上的区别。
Water supply obstacle occurred when overhead main pipe of water supply was damaged in the "3.10" Yingjiang earthquake.SAP2000 was used to simulate the stress and deformation of the pipes to summarize the damage mechanism,and ANSYS was used to analyze local stress of flange.According to the summarized damage mechanism,groove pipe support with rubber cushion was suggested to be the seismic strengthening measures.To explore advantages and disadvantages of groove pipe support with rubber cushion,the difference of displacement,velocity and stress between groove pipe supports with and without rubber cushion was analyzed in ANSYS.
Water supply obstacle occurred when overhead main pipe of water supply was damaged in the "3.10" Yingjiang earthquake.SAP2000 was used to simulate the stress and deformation of the pipes to summarize the damage mechanism,and ANSYS was used to analyze local stress of flange.According to the summarized damage mechanism,groove pipe support with rubber cushion was suggested to be the seismic strengthening measures.To explore advantages and disadvantages of groove pipe support with rubber cushion,the difference of displacement,velocity and stress between groove pipe supports with and without rubber cushion was analyzed in ANSYS.
引文
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[2]邓民宪.架空管道震害预测实用方法的研究[J].地震学报,1999,2(2):51-55.DENG Minxian.Study on practical method for earthquake damage prcdiction of high brace pipe[J].Journal of Seismolog,1999(2):51-55.(in Chinese)
[3]柳春光.架空管道的地震破坏及其分析方法研究[J].世界地震工程,1999,15(3):69-73.LIU Chunguang.The earthquake damage to overhead pipe and its analysis methods[J].World Information on Earthquake Engineering,1999,15(3):69-73.(in Chinese)
[4]张茂盛.工业系统管道支架的整体分析[D].兰州:兰州理工大学,2011.ZHANG Maosheng.Overall Analysis of Pipe in Industrial System[D].Lanzhou:Lanzhou University of Technology,2011.(in Chinese)
[5]黄誉.钢管杆中刚性法兰的有限元分析[J].特种结构,2008,25(2):3-5.HUANG Yu.Finite element analysis of flange joint wih stiffening rid in steel transmission poles[J].Special Structure,2008,25(2):3-5.(inChinese)
[6]DI-T5154-2002架空送电线路杆塔结构设计技术规定[S].北京:中国电力出版社,2002.DI-T5154-2002 Technical Regulation of Design for Towers and Pole Structure of Overhead Transmission Line[S].Beijing:China ElectricPower Press,2002.(in Chinese)
[7]余欢.变电构架中无加劲肋法兰节点有限元分析[J].武汉大学学报:工学版,2007,40(增刊):204-208.YU Huan.Finite element analysis of non-stiffened flange joint in substation frames[J].Engineering Journal of Wuhan University,2007,40(s):204-208.(in Chinese)
[8]肖新华.混凝土结构抗震鉴定与加固技术及其应用[J].自然灾害学报,2009,18(5):138-142.XIAO Xinhua.Seismic appraisement and strengthening of concrete structure and their application[J].Journal of Nature Disaster,2009,18(5):138-142.(in Chinese)
[9]GB50032-2003室外给水排水和燃气热力工程抗震设计规范[S].北京:中国建筑工业出版社,2003.GB50032-2003 Code For Seismic Design of OutdoOr Water Supply,Drainage And Gas Heating Engineering[S].Beijing:China Building IndustryPress,2003.(in Chinese)
[10]严定中.基于砂土液化分析的穿越管道抗震可靠性[J].自然灾害学报,2004,13(5):113-116.YAN Dingzhong.Aseismic reliability of traversing pipelines based on soil liquefaction analysis[J].Journal of Nature Disaster,2004,13(5):113-116.(in Chinese)
[11]Gladwell G M L.经典弹性理论中的接触问题[M].北京:北京理工大学出版社,1991:142-256.Gladwell G M L.Contact Problems in Classical Elasticity Theory[M].Beijing:Beijing Institute of Technology Press,1991:142-256.(inChinese)
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