| 偏心移动荷载对焊接钢吊车梁上部区域裂缝的影响 |
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| 引用本文： | 赵根田,靳天观. 偏心移动荷载对焊接钢吊车梁上部区域裂缝的影响[J]. 工业建筑, 2000, 30(3): 40-42 |
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| 作者姓名： | 赵根田 靳天观 |
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| 作者单位： | 1. 包头钢铁学院,包头,014010
2. 山西省冶金设计院,太原,030001 |
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| 基金项目： | 国家冶金局教育司基础理论研究项目，， |
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| 摘 要： | 通过3 根模型梁试验,研究了带裂缝焊接钢吊车梁在偏心移动荷载作用下腹板上部裂缝区域的应力分布及应力变化规律,提出腹板上部主剪应力及主拉应力的循环作用是服役吊车梁裂缝继续发展的主要原因
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| 关 键 词： | 钢吊车梁 偏心移动荷载 裂缝 |
| 修稿时间： | 1999－10－25 |
INFLUENCE OF ECCENTRIC TRAVELLING LOAD ON CRACKS OF UPPER PART OF WELDED STEEL CRANE GIRDERS |
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| Zhao Gentian,Jin Tianguan. INFLUENCE OF ECCENTRIC TRAVELLING LOAD ON CRACKS OF UPPER PART OF WELDED STEEL CRANE GIRDERS[J]. Industrial Construction, 2000, 30(3): 40-42 |
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| Authors: | Zhao Gentian Jin Tianguan |
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| Affiliation: | Zhao Gentian (Baotou University of Iron and Steel Technology Baotou 014010) Jin Tianguan(Shanxi Metallurgy Design Institute Taiyuan 030001) |
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| Abstract: | Through experiment on 3 models of beams,stress distribution and variety regularities of the upper part of welded steel crane girders with cracks which are subjected to travelling eccentric and concentrated load are studied in this paper.It is concluded that the cycling of the principal shear and tensile stress at the upper part of the web is the main reason for the crane girders whose cracks are developing in use. |
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| Keywords: | steel crane girder eccentric travelling load crack |
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