| 焊接钢吊车梁上部区域疲劳破坏的探讨 |
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| 引用本文： | 赵根田,左勇志. 焊接钢吊车梁上部区域疲劳破坏的探讨[J]. 包头钢铁学院学报, 1999, 18(1): 49-52 |
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| 作者姓名： | 赵根田 左勇志 |
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| 作者单位： | 包头钢铁学院建筑工程系 |
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| 基金项目： | 内蒙古自然科学基金;95-03-39; |
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| 摘 要： | 通过模型试验，了焊接钢吊车梁在偏心集中荷载作用下，上部区域的应力集中变化规律，提出了偏心集中荷载在腹板上部产生的局部附加弯曲应力是导致吊车梁上部区域疲劳破坏的主要原因。
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| 关 键 词： | 调:钢吊车梁 疲劳试验 偏心荷载 |
| 文章编号： | 1004-9762(1999)01-0049-04 |
| 修稿时间： | 1998-12-17 |
Probe on the mechanism of the fatigue fracture of the upper part of welded steel crane girders |
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| ZHAO Gen tian,ZUO Yong zhi. Probe on the mechanism of the fatigue fracture of the upper part of welded steel crane girders[J]. Journal of Baotou University of Iron and Steel Technology, 1999, 18(1): 49-52 |
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| Authors: | ZHAO Gen tian ZUO Yong zhi |
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| Abstract: | Through experiment on model,the regularities of the stress concentration of the upper part of welded steel crane girders which are subjected to eccentric and concentrated load are studied,then it is put forward that the local extra bent stress in the upper part of the web,which results from the eccentric and concentrated load,is the main reason that leads to the fatigue fracture of the upper part of the crane girders. |
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| Keywords: | steel crane girder fatigue experiment eccentric load |
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