| 脆性材料中的裂纹对组合梁剪切件滑移的影响 |
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| 引用本文： | 倪新华,刘协权,路晓波. 脆性材料中的裂纹对组合梁剪切件滑移的影响[J]. 军械工程学院学报, 2004, 16(2): 70-72 |
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| 作者姓名： | 倪新华 刘协权 路晓波 |
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| 作者单位： | 军械工程学院基础部，军械工程学院基础部，军械工程学院基础部 河北石家庄 050003，河北石家庄 050003，河北石家庄 050003 |
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| 基金项目： | 军械工程学院科学研究基金重点项目(YJJXM02001) |
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| 摘 要： | 组合梁的承载能力受多种因素的影响,工程中通常采用强度条件进行设计,这种方法的实质是假定剪切联接件具有无限大的滑移能力。实际上,剪切联接件的超量滑移会引起梁的破坏。假设组合梁由脆性材料和韧性材料组合而成,在考虑脆性材料产生拉伸裂纹的情况下,用等效刚度法计算了剪切件的滑移量,进而得出组合梁的极限弯矩。
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| 关 键 词： | 组合梁 剪切联接件 滑移 |
| 文章编号： | 1008-2956(2004)02-0070-03 |
| 修稿时间： | 2003-05-10 |
Effect of Cracks in the Brittle Material of Composite Beam on Slip of Shear Connectors |
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| NI Xin-hua,LIU Xie-quan,LU Xiao-bo. Effect of Cracks in the Brittle Material of Composite Beam on Slip of Shear Connectors[J]. Journal of Ordnance Engineering College, 2004, 16(2): 70-72 |
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| Authors: | NI Xin-hua LIU Xie-quan LU Xiao-bo |
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| Abstract: | The ultimate loads of composite beams are subjected to a wide range of conditions.Composite beams in buildings are usually designed using strength condition.This approach inherently assumes that the shear connectors have an unlimited slip capacity.In engineering,the excessive slip of shear connectors will arouse the failure of the beams.We assume that composite beam is composed of the brittle and ductile material elements and there are cracks in the brittle material element.The equivalent stiffness method is used to determine the slip of shear connectors,then the ultimate moment of the beam is obtained. |
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| Keywords: | composite beams shear connectors slip |
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