变电站等高差短导线受力性能分析  

MECHANICAL PERFORMANCE OF THE SHORT WIRE AT EQUAL ALTITUDE IN TRANSFORMER SUBSTATION

作　　者：信珂[1] 金耕涛 王乐天[1] 马会环 XIN Ke;JIN Gengtao;WANG Letian;MA Huihuan(Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,Jinan 250013,China;Harbin Institute of Technology,Harbin 150090,China;School of Civil Engineering,Sun Yat-Sen University,Guangzhou 519082,China)

机构地区：[1]山东电力工程咨询院有限公司,济南250013 [2]哈尔滨工业大学土木工程学院,哈尔滨150090 [3]中山大学土木工程学院,广州519082

出　　处：《低温建筑技术》2021年第2期82-84,共3页Low Temperature Architecture Technology

摘　　要：为研究等高差导线的受力性能,提出了一种简化导线模型,并验证了该简化模型的精度可以满足研究需要。使用该简化模型对等高差导线在不同间距下的水平作用力和端部弯矩进行分析。结果表明抛物线公式具有局限性,当间距较小时其计算结果可能存在较大的误差;水平作用力和端部弯矩均随间距增大先增大后减小,水平作用力为0时对应的间距与弯矩最小时对应的间距基本一致。To study the mechanical performance of equal height wires,a simplified wire model is proposed,and the accuracy of which is verified to meet the research requirements.The simplified model is used to analyze the horizontal force and end moment of the equal height wire at different spacing.The results show that the parabolic formula has limitations,and the calculation results may have large errors when the spacing is small.In addition,both the horizontal force and the end moment increase first and then decrease with the increase of the spacing;When the horizontal force is 0,the corresponding distance is basically the same as that corresponding to the minimum moment.

关 键 词：刚度效应 导线模型 等高差 短导线 

分 类 号：TU984.11[建筑科学—城市规划与设计]