| 输电铁塔冷弯角钢构件轴心受压承载力分析及试验研究 |
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| 引用本文： | 杨风利,韩军科,杨靖波,李振宝. 输电铁塔冷弯角钢构件轴心受压承载力分析及试验研究[J]. 电网技术, 2010, 34(2) |
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| 作者姓名： | 杨风利 韩军科 杨靖波 李振宝 |
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| 作者单位： | 中国电力科学研究院,北京市,宣武区,100055;北京工业大学建工学院,北京市,朝阳区,100022 |
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| 基金项目： | 国家电网公司科技项目(SGKJ2007[117]) |
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| 摘 要： | 输电线路铁塔应用冷弯型钢,可以提高输电铁塔设计水平,降低钢材用量。文章结合输电铁塔的结构特点,选取不同截面、长细比的冷弯角钢构件进行轴心受压承载力试验和有限元分析,得到了输电铁塔用冷弯角钢轴心受压构件的荷载-应变发展规律和极限承载力,并与现行设计规范承载力计算值进行了对比。分析结果表明,现行规范体系不适合我国输电铁塔冷弯型钢轴心受压构件的强度设计。通过对试验和理论分析结果进行拟合,确定了输电铁塔冷弯型钢轴心受压构件稳定系数曲线,提出了输电铁塔冷弯型钢构件承载力计算的修正意见。
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| 关 键 词： | 输电铁塔 冷弯角钢 构件试验 稳定系数 |
Analysis and Experimental Study on Ultimate Bearing Capacity of Structural Members of Cold-Bending Angle Steel for Transmission Tower Under Axial Compression |
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| YANG Feng-li,HAN Jun-ke,YANG Jing-bo,LI Zhen-bao. Analysis and Experimental Study on Ultimate Bearing Capacity of Structural Members of Cold-Bending Angle Steel for Transmission Tower Under Axial Compression[J]. Power System Technology, 2010, 34(2) |
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| Authors: | YANG Feng-li HAN Jun-ke YANG Jing-bo LI Zhen-bao |
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| Affiliation: | 1. China Electric Power Research Institute;Xuanwu District;Beijing 100055;China;2. School of Architecture and Civil Engineering;Beijing University of Technology;Chaogyang District;Beijing 100022;China |
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| Abstract: | The design level of transmission towers in China can be improved and steel product consumption for it can be reduced by adopting cold-bending profile steel to transmission tower. Based on the structural features of transmission tower, the cold-bending angle steel members with different cross-sections and slenderness ratios are chosen for bearing strength test under axial compression and finite element analysis, thus the load-strain law and ultimate bearing capacities of cold-bending angle steel members of t... |
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| Keywords: | transmission tower cold-bending angle steel member test stability coefficient |
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