| 高压输电塔线体系抗风设计风洞试验研究 |
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| 引用本文： | 赵桂峰,谢强,梁枢果,李杰.高压输电塔线体系抗风设计风洞试验研究[J].高电压技术,2009,35(5):1206-1213. |
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| 作者姓名： | 赵桂峰 谢强 梁枢果 李杰 |
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| 作者单位： | 赵桂峰,ZHAO Gui-feng(同济大学土木工程学院,上海,200092);谢强,李杰,XIE Qiang,LI Jie(同济大学土木工程学院,上海,200092;同济大学土木工程防灾国家重点试验室,上海,200092);梁枢果,LIANG Shu-guo(武汉大学土木建筑工程学院,武汉,430072)
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| 基金项目： | 国家自然科学基金创新群体项目，国家自然科学基金，霍英东教育基金会优选资助课题 |
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| 摘 要： | 为研究高压输电塔线体系的合理化抗风设计,进行了气动弹性模型风洞试验。模型分设置附加横隔的塔线体系和按现行规范设计的无附加横隔的塔线体系,测定了在紊流风场中的风振响应。在风洞试验中观测到了输电塔架的风致破坏,破坏特征与实际线路中输电塔架的破坏相似。试验结果表明,输电塔线体系的风致振动具有较强的空间耦合非线性振动特点,导地线与绝缘子的振动对输电塔的影响不容忽视;输电塔结构的风振计算中应考虑多阶振型的影响,随风速增加,高阶振型的贡献增大;输电塔结构的风致破坏具有动力失稳的特征,设置附加横隔面可提高结构的抗风能力。
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| 关 键 词： | 输电塔 风洞试验 抗风设计 风致破坏 横隔面 非线性振动 |
Wind Tunnel Test on Wind Resistant Design of High-voltage Transmission Tower-line Coupling System |
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| ZHAO Gui-feng,XIE Qiang,LIANG Shu-guo,LI Jie.Wind Tunnel Test on Wind Resistant Design of High-voltage Transmission Tower-line Coupling System[J].High Voltage Engineering,2009,35(5):1206-1213. |
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| Authors: | ZHAO Gui-feng XIE Qiang LIANG Shu-guo LI Jie |
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| Affiliation: | 1. College of Civil Engineering;Tongji University;Shanghai 200092;China;2. State Key Laboratory of Disaster Reduction in Civil Engineering;3. School of Civil and Building Engineering;Wuhan University;Wuhan 430072;China |
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| Abstract: | An aeroelastic wind tunnel test was carried out to study the rational wind resistant design method for high-voltage transmission tower-line coupling system. Two aeroelastic tower-line coupling system models were designed. One was composed of additional diaphragms in the section with the inconspicuous variable slope and the other was designed without additional diaphragm according to the current design code. The wind-induced responses in the turbulent flow were investigated through wind tunnel test.The wind-... |
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| Keywords: | transmission tower wind tunnel test wind resistant design wind-induced failure diaphragm nonlinear vibration |
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