| 输电铁塔轴心受压构件稳定系数规范对比 |
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| 引用本文： | 韩军科,张春蕾,杨靖波.输电铁塔轴心受压构件稳定系数规范对比[J].电力技术,2014(3):90-95. |
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| 作者姓名： | 韩军科 张春蕾 杨靖波 |
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| 作者单位： | [1]北京工业大学工程抗震与结构诊治北京市重点实验室,北京100124 [2]中国电力科学研究院,北京100192 [3]中国电力工程顾问集团华北电力设计院工程有限公司,北京100120 |
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| 基金项目： | 国家自然科学基金资助项目（51178014）;国家电网公司科技资助项目（GY110025） |
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| 摘 要： | 稳定问题是输电铁塔中一个极其重要的问题,以输电铁塔轴心受压构件的稳定系数为研究对象,对美国铁塔设计导则ASCE10-97、英国铁塔设计规范BS 8100-3及欧洲45 kV以上架空输电线路设计规范EN 50431-1中关于轴心受压构件的稳定系数规定进行了介绍,并与中国架空输电线路杆塔结构设计技术规定的稳定系数DL/T 5154进行对比分析.结果表明：ASCE10-97关于轴心受压构件稳定系数没有考虑截面分类的影响,而DL/T 5154、BS 8100-3、EN 50431-1考虑了截面分类对稳定系数曲线的影响;对于输电铁塔热轧角钢主材的稳定系数,ASCE10-97的大于DL/T5154、BS 8100-3及EN 50431-1的稳定系数,与DL/T5154的相当;对于冷弯钢管主材的稳定系数,ASCE10-97大于DL/T 5154,BS 8100-34和DL/T 515相当,EN 50431-1最低.
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| 关 键 词： | 输电铁塔 轴心受压构件 稳定系数 截面分类 设计规范 |
Comparison of Stability Factors of Axial Compressive Members in Transmission Towers in Design Codes |
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| Authors: | HAN Jun-ke ZHANG Chun-lei YANG Jing-bo |
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| Affiliation: | 1.Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China;China Electric Power Research Institute, Beijing 100192, China; 2.North China Power Engineering Co., LTD of China Power Engineering Consulting Group, Beijing 100120, China;) |
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| Abstract: | Stability is a very important problem in transmission towers.Taking the stability factor of axial compressive members in transmission towers as the research object,this paper presents stability factors of axial compressive members specified in American tower design guidelines （ASCE 10-97）,the British tower design specification （BS 8100-3） and European overhead transmission line of over 45 kV design specification （EN50431-1）,and make a comparison with technical regulation of design for tower and pole structures of overhead transmission line （DL/T 5154-2002）.The results show that stability factors of axial compressive members do not consider the influence of section classification in ASCE10-97,while DL/T 5154-2002,BS 8100-3 and EN 50431-1 considers the influence of section classification on stability factor curves; for the stability factor of hot-rolled angle steel members in transmission towers,ASCE10-97 is greater than DL/T 5154,while BS 8100-3 and EN 50431-1 almost equals to DL/T 5154-2002; for stability factor of cold-formed steel tube members,ASCE10-97 is greater than DL/T 5154-2002,BS 8100-3 almost equals to DL/T 5154-2002,and EN 50431-1 is the lowest. |
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| Keywords: | transmission towers axial compressive members stability factor classification of cross sections design codes |
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