冲击电压发生器塔架结构抗震抗风性能分析
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摘要
应用大型通用有限元程序ANSYS建立了某大型冲击电压发生器塔架结构体系的有限元计算模型,进行了抗震抗风性能分析.通过数值计算,讨论了输入不同地震波对结构地震反应的影响,分析了力与位移(P-Δ)效应以及材料不同弹性模量对结构反应的影响,计算结果可为电力设施的工程抗震提供一定的参考.
A structural system of large-scale shock voltage generator tower is first modeled using the finite element analysis software,i.e. ANSYSTM.Then,the anti-seismic and-wind analysis is conducted. Through numerical computations,the impacts of different seismic waves on structural seismic responses are discussed. In addition,such impacts as force and displacement (P-Δ) effects and material elastic modulus are analyzed on the structural responses. Finally,the computational results set a constructional anti-seismic reference for power facilities.
A structural system of large-scale shock voltage generator tower is first modeled using the finite element analysis software,i.e. ANSYSTM.Then,the anti-seismic and-wind analysis is conducted. Through numerical computations,the impacts of different seismic waves on structural seismic responses are discussed. In addition,such impacts as force and displacement (P-Δ) effects and material elastic modulus are analyzed on the structural responses. Finally,the computational results set a constructional anti-seismic reference for power facilities.
引文
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[2]赵成刚,冯启民.生命线地震工程[M].北京:地震出版社,1994.ZHAO Chenggang,FENG Qi min.Lifeline earthquake engineering[M].Beijing:Earthquake Press,1994.
[3]ANAGNOS T.Development of an electrical substation equipment performance database for evaluation of equipment fragilities[R].Berkeley:Pacific Earthquake Engineering Research Center,1999.
[4]李晓玉,陈淮,吴侃.高压电气设备地震设备时程响应分析[J].郑州工业大学学报,2002,23(4)∶72-75.LI Xiaoyu,CHEN Huai,WU Kan.Study on earthquake responses of high-voltage electrical equipment[J].Journal of Zhengzhou University of Technology,2002,23(4)∶72-75.
[5]李亚琦,李小军,刘锡荟.电力系统抗震研究概述[J].世界地震工程,2002,18(4)∶79-84.LI Yaqi,LI Xiaojun,LI UXihui.Asummary onthe seismic analysisinthe electrical system[J].World Earthquake Engineering,2002,18(4)∶79-84.
[6]中华人民共和国电力工业部.GB50260—96电力设施抗震设计规范[S].北京:中国计划出版社,1996.Electric Power Industry of the People’s Republic of China.GB50260—96Code for seismic design of electric power facilities[S].Beijing:China Planning Press,1996.
[7]CLOUGHR W,PENZENJ.Dynamics of structure[M].New York∶McGraw-Hill,1993.
[8]楼梦麟,陈群丽.考虑提离滑移的电压发生器塔架结构地震反应分析[J].地震工程与工程振动,1999,19(1)∶164-171.LOU Menglin,CHEN Qunli.The seismic analysis of the voltage generator tower considering to slip away[J].Earthquake Engineering and Engineering Vibration,1999,19(1)∶164-171.
[9]谢礼立,翟长海.最不利设计地震动研究[J].地震学报,2003,6(3):11-15.XIE Lili,ZHAI Changhai.Study onthe severest real ground motionfor seismicdesign and analysis[J].Acta Seismologica Sinica,2003,6(3):11-15.