| 输电塔交叉斜材计算长度的分析和计算 |
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| 引用本文： | 朱永庆,何守理,何明胜. 输电塔交叉斜材计算长度的分析和计算[J]. 特种结构, 2013, 0(1): 18-23,108 |
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| 作者姓名： | 朱永庆 何守理 何明胜 |
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| 作者单位： | 福建永福铁塔技术开发有限公司 |
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| 摘 要： | 本文对美国工程师协会的格状输电塔结构设计规定和欧盟的架空线路设计标准有关交叉斜材失稳的计算长度进行了分析，并验证了部分结论，也对我国现行的电力行业《架空送电线路杆塔结构设计技术规定》有关这方面的内容进行了探讨。最后提出了受拉杆件内力的变化对受压杆件计算长度影响的一些新的观点，并发现一些试验结果与其有较好的吻合度，同时给出失稳杆件长度系数的计算公式，对从事输电塔结构设计的工作者具有一定的参考价值。
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| 关 键 词： | 输电塔架 交叉斜材 计算长度系数 |
Analysis and Calculation on the X-braced Member Computational Length of Transmission Towers |
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| Zhu Yongqing He Shouli He Mingsheng. Analysis and Calculation on the X-braced Member Computational Length of Transmission Towers[J]. Special Structures, 2013, 0(1): 18-23,108 |
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| Authors: | Zhu Yongqing He Shouli He Mingsheng |
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| Affiliation: | Zhu Yongqing He Shouli He Mingsheng Fujian Yongfu Steel Tower Technical Development Co.,Ltd,Fuzhou 350001,China |
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| Abstract: | The computational length used in the X-braced member instability of the （（ The Design of Latticed Steel Transmission Structures ）） （ASCE 10-97） and （（ Overhead electrical lines exceeding AC 45 Kv- Part 1 ）） （BS EN 50341） are analyzed in the paper and some conclusions are verified. （（ Technical Regulation of design for tower and pole structures of overhead transmission line）） （DL/T 5154-2002） is also discussed in this subject. Finally, some new findings of the influence caused by the change of internal force of tension member on the computational length of compression member are provided and some of them have been verified by the test.The computational formula for computational length of X-braced member is given and it provides reference to transmission tower designers. |
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| Keywords: | Transmission tower X-braced member Computational length factor |
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