特高压输电线路塔线耦联体系非线性振动响应振动台试验研究
|
摘要
为了研究地震作用下特高压塔线耦联体系导线、地线的非线性振动响应,文中以单向和双向一致激励为主,通过输入不同加速度幅值的El Centro波、Taft波、Pasadena波及上海人工波,对某型特高压输电塔线耦联体系进行了缩尺模型振动台试验。试验主要分2种工况:将导线作为集中质量进行计算的方法以及挂有实际分裂导线模型的方法。试验结果表明:两种体系中塔体结构动力特性存在差别;地震作用下,挂线单塔各项动力反应峰值比相应的单塔悬挂集中质量有不同程度的降低,8度罕遇地震时较为显著,导线的非线性振动效应有利于该型输电塔动力反应幅值的降低。挂线单塔与挂集中质量单塔不同方向的加速度能量谱分布规律存在较大差异。
In order to study the nonlinear seismic responses of transmission tower-conductor coupling system,shaking table tests on 1 000kV UHV transmission tower-line coupling system were carried out subjected to four types of ground motions with different peak ground acceleration in one direction and bi-direction.Two types of model were tested,including tower-conductor coupling system and independent tower with lumped mass to simulate the conductors.The results show that there are some differences in the vibration properties between these two structures.Seismic responses of the tower in the coupling system have been reduced compared with that of its counterpart,especially in the case of input ground motions with high seismic intensity due to the nonlinear vibration responses of the conductors.There is a big difference in the acceleration energy spectrum between the two structures in both cross-line and along-line directions.
In order to study the nonlinear seismic responses of transmission tower-conductor coupling system,shaking table tests on 1 000kV UHV transmission tower-line coupling system were carried out subjected to four types of ground motions with different peak ground acceleration in one direction and bi-direction.Two types of model were tested,including tower-conductor coupling system and independent tower with lumped mass to simulate the conductors.The results show that there are some differences in the vibration properties between these two structures.Seismic responses of the tower in the coupling system have been reduced compared with that of its counterpart,especially in the case of input ground motions with high seismic intensity due to the nonlinear vibration responses of the conductors.There is a big difference in the acceleration energy spectrum between the two structures in both cross-line and along-line directions.
引文
[1]刘振亚.特高压电网[M].北京:中国经济出版社,2005:25-35.LIU Zhenya.Uitra high voltage grid[M].Beijing:China Economic Publishing House,2005:25-35.(in Chinese)
[2]罗奇峰.日本兵库县南部地唇舌生命线系统的震害及其震后恢复[J].灾害学,1997,12(1):43-48.LUO Qifeng.Damages to life-linesystems caused by hyogoken nanbu,Japan,Earthquake and their recovery[J].Journal of Catastrophology,1997,12(1):43-48.(in Chinese)
[3]台湾地震工程研究中心.九二一集集大地震全面勘灾精简报告[R].NCREE-99-033,1999.Tai Wan Center for Research on Earthquake Engineering.Chichi earthquake disaster streamline reporting comprehensive survey[R].NCREE-99-033,1999.(in Chinese)
[4]Xie Q,Zhu Rr.Earth,Wind,and ice[J].Power and Energy Magazine,2011,9(2):28-36.
[5]Maeno Y,Hanada K,Sakamoto Y.Dynamic properties of UHV power transmission towers:full-scale tests and numerical investigation[A].Proceed-ings of the 8th WCEE[C].San Francisco,America,1984:012-034.
[6]Suzuki T.Seismic Response Characteristics of Transmissions towers[A].Proceedings of the 10th WCEE[C].Balkema rotterdam,1992:55-60.
[7]Ghobarah A,Aziz T S.Response of transmission lines to multiple support excitations[J].Engineering Structures,1996,18(12):936-946.
[8]李宏男,陆鸣,王前信.大跨越自立式高压输电塔-电缆体系的简化抗震计算[J].地震工程与工程振动,1990,10(2):81-89.LI Hongnan,LU Ming,WANG Qianxin.Simplified a seismic calculation of high voltage system consisting of long span transmission lines and theirsupporting towers[J].Journal of Earthquake Engineering and Engineering Vibation,1990,10(2):81-89.(in Chinese)
[9]Li H N,Shi W.Simplified models and experimental verification for couped transmission tower-line system to seismic excitations[J].Journal ofSound and vibration,2005,286(3):569-585.
[10]朱碧蕾,胡文悌,李春祥.基于有限元分析高压输电塔结构的地震反应[J].地震工程与工程振动,2006,26(5):161-166.ZHU Bilei,HU Wenti,LI Chunxiang.Estimating seismic responses of transmission towers by finite element method[J].Journal of Earthquake Engi-neering and Engineering Vibration,2006,26(5):161-166.(in Chinese)
[11]GB05260-96中国人民共和国国家标准电力设施抗震设计规范[S].北京:中国计划出版社,1996.GB50260-96 National Standard of the People's Republic of China.Code for Design of Seismic of Electrical Installations[S].Beijing:China Plan-ning Press,1996.(in Chinese)
[12]DGJ08-9-2003上海市建设和管理委员会建筑抗震设计规程[S].中国建筑工业出版社,2003.DGJ08-9-2003 Shanghai Construction and Management Committee.Code for Seismic Design of buildings[S].China Architecture and BuildingPress,2003.(in Chinese)
[2]罗奇峰.日本兵库县南部地唇舌生命线系统的震害及其震后恢复[J].灾害学,1997,12(1):43-48.LUO Qifeng.Damages to life-linesystems caused by hyogoken nanbu,Japan,Earthquake and their recovery[J].Journal of Catastrophology,1997,12(1):43-48.(in Chinese)
[3]台湾地震工程研究中心.九二一集集大地震全面勘灾精简报告[R].NCREE-99-033,1999.Tai Wan Center for Research on Earthquake Engineering.Chichi earthquake disaster streamline reporting comprehensive survey[R].NCREE-99-033,1999.(in Chinese)
[4]Xie Q,Zhu Rr.Earth,Wind,and ice[J].Power and Energy Magazine,2011,9(2):28-36.
[5]Maeno Y,Hanada K,Sakamoto Y.Dynamic properties of UHV power transmission towers:full-scale tests and numerical investigation[A].Proceed-ings of the 8th WCEE[C].San Francisco,America,1984:012-034.
[6]Suzuki T.Seismic Response Characteristics of Transmissions towers[A].Proceedings of the 10th WCEE[C].Balkema rotterdam,1992:55-60.
[7]Ghobarah A,Aziz T S.Response of transmission lines to multiple support excitations[J].Engineering Structures,1996,18(12):936-946.
[8]李宏男,陆鸣,王前信.大跨越自立式高压输电塔-电缆体系的简化抗震计算[J].地震工程与工程振动,1990,10(2):81-89.LI Hongnan,LU Ming,WANG Qianxin.Simplified a seismic calculation of high voltage system consisting of long span transmission lines and theirsupporting towers[J].Journal of Earthquake Engineering and Engineering Vibation,1990,10(2):81-89.(in Chinese)
[9]Li H N,Shi W.Simplified models and experimental verification for couped transmission tower-line system to seismic excitations[J].Journal ofSound and vibration,2005,286(3):569-585.
[10]朱碧蕾,胡文悌,李春祥.基于有限元分析高压输电塔结构的地震反应[J].地震工程与工程振动,2006,26(5):161-166.ZHU Bilei,HU Wenti,LI Chunxiang.Estimating seismic responses of transmission towers by finite element method[J].Journal of Earthquake Engi-neering and Engineering Vibration,2006,26(5):161-166.(in Chinese)
[11]GB05260-96中国人民共和国国家标准电力设施抗震设计规范[S].北京:中国计划出版社,1996.GB50260-96 National Standard of the People's Republic of China.Code for Design of Seismic of Electrical Installations[S].Beijing:China Plan-ning Press,1996.(in Chinese)
[12]DGJ08-9-2003上海市建设和管理委员会建筑抗震设计规程[S].中国建筑工业出版社,2003.DGJ08-9-2003 Shanghai Construction and Management Committee.Code for Seismic Design of buildings[S].China Architecture and BuildingPress,2003.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心