| 特高压8分裂导线风荷载干扰效应风洞试验 |
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| 引用本文： | 谢强,谢超,管政.特高压8分裂导线风荷载干扰效应风洞试验[J].高电压技术,2011,37(9):2126-2132. |
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| 作者姓名： | 谢强 谢超 管政 |
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| 作者单位： | 1. 同济大学建筑工程系,上海200092／同济大学土木工程防灾国家重点实验室,上海200092
2. 同济大学建筑工程系,上海,200092 |
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| 基金项目： | 国家自然科学基金(5050802650778135); 教育部霍英东教育基金会资助课题~~ |
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| 摘 要： | 特高压8分裂导线在风场作用下的干扰效应对导线风荷载的合理化设计非常重要。为研究该干扰效应,设计制作了特高压多分裂导线模型,进行了不同风场环境下多分裂导线的风荷载特性测试。试验采用高频测力天平测得不同风场下多分裂导线模型的3分量力,继而获得导线各种风场下阻力系数。通过比较不同导线形式、迎风方向,研究了多分裂导线在风场下的干扰效应,得到了导线风荷载随分裂导线数、雷诺数变化规律。试验结果表明8分裂导线的干扰效应显著,实测风荷载结果较现行规范计算结果有明显降低,表明现行规范中的8分裂导线风荷载计算方法偏于保守。特高压8分裂导线等效风荷载的合理化计算可以考虑干扰效应的影响。
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| 关 键 词： | 特高压(UHV) 8分裂导线 刚体模型 风洞试验 干扰效应 阻力系数 |
Wind Tunnel Test on the Interference Effect on Wind Load of UHV 8-bundled Conductors |
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| XIE Qiang,XIE Chao,GUAN Zheng.Wind Tunnel Test on the Interference Effect on Wind Load of UHV 8-bundled Conductors[J].High Voltage Engineering,2011,37(9):2126-2132. |
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| Authors: | XIE Qiang XIE Chao GUAN Zheng |
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| Affiliation: | XIE Qiang1,2,XIE Chao1,GUAN Zheng1(1.Department of Building Engineering,Tongji University,Shanghai 200092,China,2.State Key Laboratory of Disaster Reduction in Civil Engineering,China) |
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| Abstract: | In order to obtain the rational wind loads,it is necessary to study the interference effects of 8-bundled conductors of UHV transmission lines under wind effect.Taking 8-bundled conductors in a 1000kV transmission line as the prototype,we set up multi-bundled conductor models.By using high frequency multi-axis force sensor,wind loading characteristics of these models were tested in the wind tunnel under different wind fields.Drag coefficients were obtained and compared for different multi-bundled conductors... |
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| Keywords: | ultra high voltage(UHV) 8-bundled conductor rigid model wind tunnel test interference effect drag coefficient |
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