| 预应力摩擦损失的试验研究 |
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| 引用本文： | 李忠献,吴沛峰,陈培奇. 预应力摩擦损失的试验研究[J]. 天津城市建设学院学报, 2003, 9(1): 28-31 |
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| 作者姓名： | 李忠献 吴沛峰 陈培奇 |
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| 作者单位： | 1. 天津大学,建筑工程学院,天津,300072
2. 天津城市建设学院,土木工程系,天津,300384 |
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| 摘 要： | 通过对某立交桥现浇后张预应力混凝土箱梁预应力钢束的摩擦损失试验，测试并理论计算了预应力的摩擦损失，推导了该桥预应力钢束与金属波纹管之间的摩擦系数和管道偏差系数，指出现行《公桥规》以及当前设计工作中有关预应力摩擦损失计算的不足，并提出相关建议。
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| 关 键 词： | 预应力混凝土 摩擦损失 波纹管 摩擦系数 偏差系数 |
| 文章编号： | 1006-6853(2003)01-0028-04 |
| 修稿时间： | 2002-12-07 |
Experimental study on friction loss of prestress |
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| LI Zhong xian ,WU Pei feng ,CHEN Pei qi. Experimental study on friction loss of prestress[J]. Journal of Tianjin Institute of Urban Construction, 2003, 9(1): 28-31 |
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| Authors: | LI Zhong xian WU Pei feng CHEN Pei qi |
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| Affiliation: | LI Zhong xian 1,WU Pei feng 1,CHEN Pei qi 2 |
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| Abstract: | The friction loss of prestress is tested and theoretically calculated by the experimental study on the prestressing friction loss of prestressed wires of the post tensioned prestressed concrete box girder of an overpass casted in situs.The friction factor between the prestressed wires and the metallic corrugated pipes and the bias factor of pipleline are determinated. The deficency in the calculation of friction loss of prestress in the current highway code and designing work is indicated and a rational suggestion is proposed. |
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| Keywords: | prestressed concrete friction loss corrugated pipe friction factor bias factor |
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