| 低强早期张拉控制预应力混凝土梁裂缝施工技术 |
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| 引用本文： | 谭国顺.低强早期张拉控制预应力混凝土梁裂缝施工技术[J].桥梁建设,2007(1):60-63. |
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| 作者姓名： | 谭国顺 |
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| 作者单位： | 中铁大桥局股份有限公司,湖北,武汉,430050 |
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| 摘 要： | 对混凝土梁体裂缝成因进行分析,通过杭州湾跨海大桥70 m预制箱梁的工程实践,阐述采取低强早期张拉的工艺措施,控制预应力混凝土梁裂缝的施工技术。
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| 关 键 词： | 预应力混凝土梁 裂缝 控制 施工方法 |
| 文章编号： | 1003-4722(2007)01-0060-04 |
| 修稿时间： | 2006-10-11 |
Construction Technique for Controlling Cracking in PC Girders by Early Tensioning at Low Concrete Strength |
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| TAN Guo-shun.Construction Technique for Controlling Cracking in PC Girders by Early Tensioning at Low Concrete Strength[J].Bridge Construction,2007(1):60-63. |
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| Authors: | TAN Guo-shun |
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| Institution: | China Zhongtie Major Bridge Engineering, Inc., Wuhan 430050, China |
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| Abstract: | The formation causes of cracking in prestressed concrete(PC) girders are analyzed,and in accordance with the construction implementation of the 70-m span precast pre-stressed concrete box girders of Hangzhou Bay Sea-Crossing Bridge,the construction technique for controlling cracking in the prestressed concrete girders by means of workmanship of early tensioning at low concrete strength is dealt with. |
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| Keywords: | prestressed concrete girder cracking control construction method |
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