| 特高压钢管塔主材长细比及径厚比的取值 |
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| 引用本文： | 韩军科,杨靖波,杨风利,李峰,李茂华.特高压钢管塔主材长细比及径厚比的取值[J].电网技术,2009(19). |
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| 作者姓名： | 韩军科 杨靖波 杨风利 李峰 李茂华 |
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| 作者单位： | 中国电力科学研究院; |
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| 摘 要： | 文章选取1000kV淮南—上海(皖电东送)输变电工程的典型同塔双回钢管塔为研究对象,建立其梁杆混合单元的有限元模型,对塔身主材的应力进行了计算。结果表明杆端弯矩对主材应力的影响程度与其长细比密切相关。通过统计分析,给出了长细比与应力的对应关系。通过分析计算结果及对比国内外设计标准,提出了钢管塔压弯主材圆管截面的径厚比取值建议。研究结果可为我国特高压钢管塔的结构优化提供参考。
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| 关 键 词： | 特高压钢管塔 长细比 径厚比 局部屈曲 |
Value Selection of Slenderness Ratio and Diameter-Thickness Ratio of Steel Tube for 1000 kV Transmission Steel Tubular Tower Legs |
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| HAN Jun-ke,YANG Jing-bo,YANG Feng-li,LI Feng,LI Mao-hua.Value Selection of Slenderness Ratio and Diameter-Thickness Ratio of Steel Tube for 1000 kV Transmission Steel Tubular Tower Legs[J].Power System Technology,2009(19). |
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| Authors: | HAN Jun-ke YANG Jing-bo YANG Feng-li LI Feng LI Mao-hua |
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| Affiliation: | HAN Jun-ke,YANG Jing-bo,YANG Feng-li,LI Feng,LI Mao-hua(China Electric Power Research Institute,Haidian District,Beijing 100192,China) |
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| Abstract: | Taking typical steel tubular tower for 1 000 kV power transmission and transformation project from South Anhui to Shanghai, which adopts the form of double circuit on the same tower, as research object, a finite-element model for beam-rod mixed unit of the tower is established, then the stress of the main material for tower body is calculated.Calculation results show that the impacting extent of bending moment at rod end on the stress of main material is closely related with the diameter-thickness ratio of ... |
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| Keywords: | steel tubular tower for 1 000 kV power transmission project slenderness ratio diameter-thickness ratio local buckling |
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