特高压悬吊换流阀塔抗震分析
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摘要
基于ANSYS有限元软件,建立单塔换流阀体的有限元模型,通过模态分析计算结构的动态特性,应用反应谱法计算换流阀塔的地震响应。在抗震分析计算中考虑结构的预应力效应和大变形效应,并考虑地震载荷和重力载荷的组合作用。计算结果表明,主要影响地震响应的振型是水平向的摆动和扭转振型,换流阀塔水平摆动的地震响应位移稍大,应在阀厅的布置设计中予以考虑。
Based on ANSYS software,the finite element model of single converter valve tower is set up,the structural dynamic characteristics of the tower are analyzed by modal method,and the earthquake response of the converter valve tower is calculated by response spectrum method.The restress effect and the large deformation effect are included in the calculation process,and the seismic response of the tower under combined action of earthquake and gravity loads is calculated.The results show that horizontal sway mode shape and torsional mode shape significantly influence structural dynamic response.And horizontal sway response displacement of the tower is slightly larger,which must be considered in the disposition design of valve hall.
Based on ANSYS software,the finite element model of single converter valve tower is set up,the structural dynamic characteristics of the tower are analyzed by modal method,and the earthquake response of the converter valve tower is calculated by response spectrum method.The restress effect and the large deformation effect are included in the calculation process,and the seismic response of the tower under combined action of earthquake and gravity loads is calculated.The results show that horizontal sway mode shape and torsional mode shape significantly influence structural dynamic response.And horizontal sway response displacement of the tower is slightly larger,which must be considered in the disposition design of valve hall.
引文
[1]马勇杰.换流阀站阀厅结构选型与抗震分析[J].电力建设,2009,30(2):37-40.MA Yongjie.Structural selection and anti-quake analysis of converter station valve hall[J].Electric Power Construction,2009,30(2):37-40.
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[3]黄利军.阀厅结构的振动测试与非线性动力分析研究[D].武汉:武汉理工大学,2007.HUANG Lijun.The vibration test and nonlinear dynamical analysis study of the valve hall structure[D].Wuhan:Wuhan University of Technology,2007.
[4]DL/T5223-2005高压直流换流站设计技术规定[S].DL/T5223-2005 Technical Rule for Designing HVDC Converter Station[S].
[5]GB/J50011-2001建筑抗震设计规范[S].GB/J50011-2001 Code for Seismic Design of Buildings[S].
[6]张传国.Ansys在混凝土重力坝振型分解反应谱分析中的应用[J].云南水利发电,2009,25(6):24-27.ZHANG Chuanguo.Application of ansys to analysis of vibration type decomposition response spectrum of a concrete gravity dam[J].Yunnan WaterPower,2009,25(6):24-27.
[2]刘宗辉,朱海华,叶盛.特高压换流阀站阀厅悬吊阀地震作用研究[J].南方电网技术,2009,3(1):24-26.LIUZonghui,ZHUHaihua,YE Sheng.Research of seismic response of suspending valves in converter station[J].Southern Power System Technol-ogy,2009,3(1):24-26.
[3]黄利军.阀厅结构的振动测试与非线性动力分析研究[D].武汉:武汉理工大学,2007.HUANG Lijun.The vibration test and nonlinear dynamical analysis study of the valve hall structure[D].Wuhan:Wuhan University of Technology,2007.
[4]DL/T5223-2005高压直流换流站设计技术规定[S].DL/T5223-2005 Technical Rule for Designing HVDC Converter Station[S].
[5]GB/J50011-2001建筑抗震设计规范[S].GB/J50011-2001 Code for Seismic Design of Buildings[S].
[6]张传国.Ansys在混凝土重力坝振型分解反应谱分析中的应用[J].云南水利发电,2009,25(6):24-27.ZHANG Chuanguo.Application of ansys to analysis of vibration type decomposition response spectrum of a concrete gravity dam[J].Yunnan WaterPower,2009,25(6):24-27.
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