| 体外预应力混凝土结构耐久性防护问题的探讨 |
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| 引用本文： | 刘少兵.体外预应力混凝土结构耐久性防护问题的探讨[J].铁道科学与工程学报,2007,4(4):61-64. |
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| 作者姓名： | 刘少兵 |
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| 作者单位： | 湖南省建筑工程集团总公司,湖南,长沙,410004;中南大学,土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 运用化学及结构振动原理,阐述了体外预应力筋腐蚀破坏机理,分析了体外预应力筋振动频率对梁正常使用的影响。在以上基础上,针对体外预应力混凝土结构在耐久性方面存在的问题,提出了体外预应力筋系统耐久性防护的技术措施。
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| 关 键 词： | 预应力混凝土 体外预应力 耐久性 |
| 文章编号： | 1672-7029（2007）04-0061-04 |
| 修稿时间： | 2007-05-16 |
Study on durability of prestressed concrete structure with external tendons |
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| LIU Shao-bing.Study on durability of prestressed concrete structure with external tendons[J].Journal of Railway Science and Engineering,2007,4(4):61-64. |
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| Authors: | LIU Shao-bing |
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| Institution: | Hunan Construction Engineering Group Corporation, Changsha 410004, China; School of Civil and Architectural Engineering, Central South University, Changsha 410083, China |
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| Abstract: | Based on the theories of chemistry and ahsking structure,the corrosion and damage mechanism of externally prestressed tendons was addressed and the impact of vibration frequency of externally prestressed tendons on normal use of concrete beams was analyzed.On this basis of analyses,the technological measures to prevent the erosion of externally prestressed tendons and to improve the durability of concrete were commented aiming at the problems with the durability of externally prestressed tendons. |
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| Keywords: | prestressed concrete prestressed concrete with external tendons durability |
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