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| 实桥预应力孔道压浆调查和钢丝性能分析 | |
| 引用本文： | 刘其伟,张鹏飞,吴建平.实桥预应力孔道压浆调查和钢丝性能分析[J].桥梁建设,2006(5):72-75. |
| 作者姓名： | 刘其伟 张鹏飞 吴建平 |
| 作者单位： | 1. 东南大学交通学院,江苏 南京 210096 2. 东南大学交通学院,江苏,南京,210096 3. 宁沪高速公路股份有限公司,江苏,南京,210004 |
| 摘 要： | 在某后张法预应力混凝土桥梁拆除过程中,调查了该桥的预应力孔道压浆情况。对该桥预应力钢丝试样进行一系列试验,得到了钢丝的腐蚀情况,以及弹性模量和极限强度等重要力学指标。分析这些经过约10年使用年限的钢丝的力学性能变化情况,为研究和评估类似预应力混凝土结构的耐久性和承载能力提供了参考。 |
| 关 键 词： | 预应力力筋 孔道压浆 腐蚀 弹性模量 极限强度 |
| 文章编号： | 1003-4722(2006)05-0072-04 |
| 收稿时间： | 2006-03-09 |
| 修稿时间： | 2006年3月9日 |
Investigation of Duct Grouting and Analysis of Steel Wire Behavior of an Actual Post-Tensioned Concrete Bridge |
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| LIU Qi-wei,ZHANG Peng-fei,WU Jian-ping.Investigation of Duct Grouting and Analysis of Steel Wire Behavior of an Actual Post-Tensioned Concrete Bridge[J].Bridge Construction,2006(5):72-75. | |
| Authors: | LIU Qi-wei ZHANG Peng-fei WU Jian-ping |
| Affiliation: | 1. College of Transportation, Southeast University, Nanjing 210096, China; 2. Nanjing-Shanghai Expressway, Inc., Nanjing 210004, China |
| Abstract: | At the time a post-tensioned concrete bridge was dismantled,the situations of duct grouting of the bridge were investigated,the prestressing steel wires were sampled for a series of testing and some important mechanical indexes of the steel wire corrosion,elasticity modulus and ultimate strength of the bridge have been obtained.The mechanical behavior changes of the steel wires having been used for almost ten years are analyzed and references for the research and evaluation of durability and load-carrying capacity of similar post-tensioned concrete structures are provided. |
| Keywords: | prestressing strand duct grouting corrosion elasticity modulus ultimate stre-ngth |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
