| 闭口肋正交异性钢桥面板应力分析 |
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| 引用本文： | 林茂盛,顾萍,周聪.闭口肋正交异性钢桥面板应力分析[J].石家庄铁道学院学报(社会科学版),2010(4):32-35,40. |
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| 作者姓名： | 林茂盛 顾萍 周聪 |
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| 作者单位： | 同济大学 桥梁工程系;同济大学 桥梁工程系;同济大学 桥梁工程系 |
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| 摘 要： | 正交异性钢桥面板在车辆荷载作用下将产生极大的面外弯矩，由于桥面板与纵肋的相对厚度较小，这种面外弯矩将导致较高的弯曲应力进而使构件产生裂纹。用大型有限元分析软件ANSYS对正交异性钢桥面板在板 肋连接处的应力状况进行了数值计算。计算结果表明桥面板应力一般大于纵肋应力，可在横截面加设内横隔板以改善结构受力，同时帽孔尺寸不宜过大，设为25 mm较为合适。
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| 关 键 词： | 正交异性钢桥面板 裂纹 有限元模型 内横隔板 帽孔 |
| 收稿时间： | 2010/9/25 0:00:00 |
Stress Analysis of Closed ribs Orthotropic Steel Decks |
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| Authors: | Lin Maosheng Gu Ping and Zhou Cong |
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| Institution: | Department of Bridge Engineering, Tongji University;Department of Bridge Engineering, Tongji University;Department of Bridge Engineering, Tongji University |
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| Abstract: | Orthotropic decks will generate significant out of plane bending moments in the deck plate and rib wall when wheel loads act on it due to the relatively small thickness of both the deck plate and rib wall . This essay numerically calculates the stresses in plate rib area with ANSYS . The results of the calculation show that the surface stresses in the deck plate are much larger than those in the rib wall, and installing an inner diaphragm plate at the cross section will improve the stresses condition of the structure. The size of cope hole should not be too large, and a 25 mm radius would be appropriate. |
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| Keywords: | orthotropic steel deck cracks finite element model inner diaphragm plate cope hole |
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