| 等效模量法计算冷弯薄壁开孔槽钢柱屈曲应力 |
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| 引用本文： | 周金将,余绍锋. 等效模量法计算冷弯薄壁开孔槽钢柱屈曲应力[J]. 钢结构, 2010, 25(2): 27-31 |
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| 作者姓名： | 周金将 余绍锋 |
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| 作者单位： | 同济大学建筑工程系,上海,200092 |
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| 摘 要： | 主要研究分析翼缘和腹板上都开孔的冷弯薄壁卷边槽型柱在轴压下的局部屈曲和畸变屈曲性能。根据复合材料理论,将开孔构件中的孔看作夹杂,进而引入等效弹性模量的概念,将开孔构件等效成未开孔构件,提出用等效模量法来计算开孔槽型柱的局部屈曲和畸变屈曲应力,并验证其是有效的。
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| 关 键 词： | 冷弯薄壁 开孔 局部屈曲 畸变屈曲 等效弹性模量 |
EQUIVALENT CALCULATION OF BUCKLING STRESS FOR COLD-FORMED THIN-WALL PERFORATED CHANNEL COLUNM |
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| Zhou Jinjiang Yu Shaofeng. EQUIVALENT CALCULATION OF BUCKLING STRESS FOR COLD-FORMED THIN-WALL PERFORATED CHANNEL COLUNM[J]. Steel Construction, 2010, 25(2): 27-31 |
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| Authors: | Zhou Jinjiang Yu Shaofeng |
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| Affiliation: | Department of Building Engineering;Tongji University;Shanghai 200092;China |
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| Abstract: | The local and distortion bucklings of perforated element,which is in flange and web of cold-formed thin-wall channel column are studied under axial load.According to theory of composite material,the concept of equivalent modulus will be used to calculate perforated element.Perforated element will be equivalent to solid element.A new formula will be given to calculate perforated element's local buckling and distortional buckling. |
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| Keywords: | cold-formed thin-wall perforated local buckling distortional buckling equivalent modulus |
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