| 上承式钢筋混凝土拱桥构造研究 |
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| 引用本文： | 李宇.上承式钢筋混凝土拱桥构造研究[J].铁道标准设计通讯,2016(4):40-42. |
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| 作者姓名： | 李宇 |
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| 作者单位： | 铁道第三勘察设计院集团有限公司桥梁处 |
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| 摘 要： | 为研究上承式钢筋混凝土拱桥构造对结构受力的影响,利用有限元方法分析某无砟轨道上承式钢筋混凝土拱桥拱肋厚度及腹拱跨度对结构受力的影响。通过计算分析得出采用增加拱肋厚度、减小腹拱跨度的方式,能有效改善局部受力,降低腹拱墩范围的应力水平使结构受力更为合理的结论。
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| 关 键 词： | 铁路桥 钢筋混凝土 拱桥 应力集中 弹塑性分析 接触单元 |
Structural Study on Reinforced Concrete Deck Arch Bridge |
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| LI Yu.Structural Study on Reinforced Concrete Deck Arch Bridge[J].Railway Standard Design,2016(4):40-42. |
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| Authors: | LI Yu |
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| Institution: | LI Yu;Department of Bridge Engineering Design and Research,The Third Railway Survey and Design Institute Group Corporation; |
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| Abstract: | Using the data from a deck arch bridge,this article conducts an analysis of the relationship between the thickness of arch rib and the span of spandrel arch. The results show that increasing the thickness of the arch rib and decreasing the span of the spandrel arch can effectively improve the local load carrying capacity and lower the stress level around the spandrel arch pier. |
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| Keywords: | Railway bridge Reinforced concrete Arch bridge Stress concentration Elasto-plastic analysis Contact element |
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