| 预应力钢绞线安装预埋超常时间的保护与张拉控制 |
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| 引用本文： | 陈文寅.预应力钢绞线安装预埋超常时间的保护与张拉控制[J].交通标准化,2007(7):80-82. |
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| 作者姓名： | 陈文寅 |
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| 作者单位： | 广东省长大公路工程有限公司,广东,广州,510620 |
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| 摘 要： | 石龙南岸三桥型桥墩墩身均设有预应力高强度钢绞线,针对其设计存在的超常时间安装预埋间隔以及长时间的停工,制定了合理的施工方案,对钢绞线采取了严密的保护措施;同时在墩身预应力施工阶段,对预应力实施了分阶段分级的控制.实践证明,所用措施是有效的、成功的,可为类似工程提供借鉴.
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| 关 键 词： | 预应力钢绞线 预埋超常时间 保护 张拉 |
| 文章编号： | 1002-4786（2007）07-0080-02 |
| 收稿时间： | 2006-11-21 |
| 修稿时间： | 2006-11-21 |
The Protection on Prestressing Force Steel Wire Installing and Embeded of Supernormal Time and the Control on Spread and Pull |
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| CHEN Wen-yin.The Protection on Prestressing Force Steel Wire Installing and Embeded of Supernormal Time and the Control on Spread and Pull[J].Communications Standardization,2007(7):80-82. |
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| Authors: | CHEN Wen-yin |
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| Institution: | Guangdong Changda Highway Engineering Co. Ltd., Guangzhou 510620, China |
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| Abstract: | Shilong south band No.3 bridge pier cause the design included supernormal time installed installed prestressing force high strength steel wire. Be and embeded interval and long time shutdown, reasonable construction scheme was established amd rigorous protection for steel wire was adopted. At the moment of pier in construction, controlling on the prestressing force was carried on by grading and classi fication. The practice is proved that the method is effective and successful, and can provide help for similar projection. |
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| Keywords: | prestressing force steel wire embeded of supernormal time protection spread and pull |
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