| 大规格角钢轴压杆局部屈曲稳定强度折减系数对比 |
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| 引用本文： | 潘峰,陈文翰,初金良,王谦,张辰.大规格角钢轴压杆局部屈曲稳定强度折减系数对比[J].广东电力,2019,32(1):132-139. |
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| 作者姓名： | 潘峰 陈文翰 初金良 王谦 张辰 |
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| 作者单位： | 中国能源建设集团浙江省电力设计院有限公司,浙江 杭州,310012;国网浙江省电力有限公司建设分公司,浙江 杭州,310008;国网浙江省电力有限公司丽水供电公司,浙江 丽水,323000;国网浙江省电力有限公司温州供电公司,浙江 温州,325000 |
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| 摘 要： | 大规格角钢的等效宽厚比较大,轴压构件边缘有可能会发生局部失稳而丧失承载力,国内外规范常用的方法是采用强度折减系数对设计强度进行适当的折减,从而防止发生构件的局部屈曲。为此,对铁塔设计规范(包括DL/T5154、ASCE74-2009、AISC、BS8100、EN50341及CSA)中关于稳定强度折减系数的计算原理进行梳理和分析,得到了一套适应我国规范的大规格角钢稳定强度折减系数的计算方法;同时,根据国内外规范对大规格角钢稳定强度折减系数计算方法进行对比分析,得到了相应的国外规范稳定强度折减系数的分布特点,且与我国规范的计算结果进行对比研究。研究结果揭示了大规格角钢稳定强度折减系数的取值要点,并可作为输电铁塔构件设计的参考。
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| 关 键 词： | 输电铁塔 大规格角钢 轴压构件 局部屈曲 强度折减系数 |
Comparison Analysis of Local Buckling Stability Strength Reduction Coefficient of Large-size Steel Angle Axial Compression Bar |
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| PAN Feng,CHEN Wenhan,CHU Jinliang,WANG Qian,ZHANG Chen.Comparison Analysis of Local Buckling Stability Strength Reduction Coefficient of Large-size Steel Angle Axial Compression Bar[J].Guangdong Electric Power,2019,32(1):132-139. |
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| Authors: | PAN Feng CHEN Wenhan CHU Jinliang WANG Qian ZHANG Chen |
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| Affiliation: | (China Energy Engineering Group Zhejiang Electric Power Design Institute Co.,Ltd.,Hangzhou,Zhejiang 310012,China;State Grid Zhejiang Electric Power Company,Construction Company,Hangzhou,Zhejiang 310008,China;State Grid Zhejiang Electric Power Company Lishui Power Supply Company,Lishui,Zhejiang 323000,China;State Grid Zhejiang Electric Power Company Wenzhou Power Supply Company,Wenzhou,Zhejiang 325000,China) |
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| Abstract: | PAN Feng;CHEN Wenhan;CHU Jinliang;WANG Qian;ZHANG Chen(China Energy Engineering Group Zhejiang Electric Power Design Institute Co.,Ltd.,Hangzhou,Zhejiang 310012,China;State Grid Zhejiang Electric Power Company,Construction Company,Hangzhou,Zhejiang 310008,China;State Grid Zhejiang Electric Power Company Lishui Power Supply Company,Lishui,Zhejiang 323000,China;State Grid Zhejiang Electric Power Company Wenzhou Power Supply Company,Wenzhou,Zhejiang 325000,China) |
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| Keywords: | power transmission tower large-size steel angle axial compression member local buckling strength reduction coefficient |
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