| 新机场互通立交桥B1B2道预制箱梁的施工控制要点 |
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| 引用本文： | 陈瑁.新机场互通立交桥B1B2道预制箱梁的施工控制要点[J].城市道桥与防洪,2011(6):158-161,320,321. |
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| 作者姓名： | 陈瑁 |
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| 作者单位： | 汕头市市政工程总公司,广东汕头,515041 |
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| 摘 要： | 该文结合立交桥中常见的预制箱梁与现浇钢筋混凝土桥面板组合箱梁结构施工中预应力混凝土箱梁的施工控制要点,介绍了预应力后张法中波纹管的安装、张拉设备配备、张拉工艺程序及张拉操作的施工要点、压浆的注意事项,以及预应力混凝土箱梁的关键环节,并据此制定了工程的主要技术措施,使工程取得圆满成功。
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| 关 键 词： | 简支组合 预应力混凝土箱梁 后张法 波纹管 张拉操作 压浆 |
Construction Control Gist of B1 and B2 Road Prefabricated Box Girders of Interchanges in New Airport |
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| Chen Mao.Construction Control Gist of B1 and B2 Road Prefabricated Box Girders of Interchanges in New Airport[J].Urban Roads Bridges & Flood Control,2011(6):158-161,320,321. |
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| Authors: | Chen Mao |
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| Abstract: | According the construction control gist of the prestressed concrete box girder in the structural construction of the prefabricated box girder and the cast-in-situ reinforced concrete deckslab combined box girder commonly used in the interchanges,the article introduces the installation of corrugated pipe in the prestressing post-tensioning method,the construction gist of tensioning equipment,tensioning technological program and tensioning operation,and the cautions of post-placed aggregate as well as the key link of prestressed concrete box girder.The main technical measures of the projects are drawn up on it to make the projects fully successful. |
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| Keywords: | combination of simple support prestressed concrete box girder post-tensioning corrugated pipe tensioning operation post – placed aggregate |
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