| 预应力混凝土箱梁锚下局部应力分析 |
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| 引用本文： | 项敬辉,李荣达. 预应力混凝土箱梁锚下局部应力分析[J]. 城市道桥与防洪, 2010, 0(4): 64-66,81 |
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| 作者姓名： | 项敬辉 李荣达 |
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| 作者单位： | 天津市市政工程设计研究院,天津市,300051;中交路桥技术有限公司,北京市,100029 |
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| 摘 要： | 在大吨位预应力束的作用下,锚下混凝土受力特征复杂,锚固区的安全性和抗裂性是结构设计的关键部分。运用Ansys对腹板锚固区的局部应力特征进行研究,并对张拉腹板束出现的斜裂缝进行原因分析。
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| 关 键 词： | 箱梁 锚固区 局部应力 模型试验 有限元 |
Analysis on Local Stress in Anchorage Zone of Prestressed Concrete Box Girder |
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| Xiang Jinghui,Li Rongda. Analysis on Local Stress in Anchorage Zone of Prestressed Concrete Box Girder[J]. Urban Roads Bridges & Flood Control, 2010, 0(4): 64-66,81 |
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| Authors: | Xiang Jinghui Li Rongda |
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| Abstract: | The stress character of the related anchorage zone is complicated under the action of the large tonnage prestressing strand.The safety and the crack resistance of the anchorage zone are the key parts in the structural design.The article uses ANSYS to research the local stress character of the web anchorage zone,and analyzes the cause of cracks occurred on the tensioned web strand. |
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| Keywords: | box girder anchorage zone local stress model test finite element |
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