| RPC箱形梁预应力局部影响区研究 |
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| 引用本文： | 夏支贤,季文玉. RPC箱形梁预应力局部影响区研究[J]. 铁道建筑技术, 2006, 0(6): 48-51 |
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| 作者姓名： | 夏支贤 季文玉 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京,100044 |
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| 摘 要： | 构件预应力局部影响区与混凝土弹性模量,梁截面尺寸等因素有关。用有限元ANSYS软件对箱形梁进行数值计算,结合圣维南原理得出预应力局部影响区约为0.5倍梁高的结论,并按相似理论设计模型梁进行实验证明了这一结论,对RPC箱梁的设计具有参考价值。
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| 关 键 词： | RPC混凝土 箱形梁 圣维南原理 预应力局部影响区 |
| 文章编号： | 1009-4539(2006)06-0048-04 |
| 修稿时间： | 2006-01-21 |
Study on Part Influencing Area of Prestressing Force of Reactive Powder Concrete (RPC) Box Beam |
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| Xia Zhixian,Ji Wenyu. Study on Part Influencing Area of Prestressing Force of Reactive Powder Concrete (RPC) Box Beam[J]. Railway Construction Technology, 2006, 0(6): 48-51 |
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| Authors: | Xia Zhixian Ji Wenyu |
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| Abstract: | The part influencing area of prestressing force is related to such factors as concrete's elastic ratio, beam' s sec-tional dimension and so on. This article focuses on box beam, makes number value calculation with finite element software, ANSYS, combines Saint Venant' s principle and comes to the conclusion that the part influencing area of prestressing force is about 0.5 times of beam depth. The conclusion is also based on analysis of the test data. It has some reference value to the design of RPC box beam. |
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| Keywords: | reactive powder concrete box beam Saint Venant's principle part influencing area of prestressing force |
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