| 70m预应力混凝土箱梁高位预制法施工 |
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| 引用本文： | 于政权.70m预应力混凝土箱梁高位预制法施工[J].桥梁建设,2003(B05):34-37. |
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| 作者姓名： | 于政权 |
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| 作者单位： | 中铁大桥局集团四公司,江苏南京210031 |
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| 摘 要： | 东海大桥为我国第一座在外海修建的跨海大桥，施工环境非常恶劣，箱梁采用预制安装方法施工。70m箱梁高4m，桥面宽15．05m，单片梁重约2000t，为避免在预制场内使用特大型起吊设备，采用高住预制法预制箱梁。主要介绍箱梁高位预制方法的设计思想、台座布置、箱梁模板形式、箱梁滑移设备及方案的比选。
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| 关 键 词： | 预应力混凝土梁 预制工艺 桥梁架设 |
| 文章编号： | 1003-4722（2003）S0-0034-04 |
| 收稿时间： | 2003-03-10 |
Construction of 70-m Prestressed Concrete Box Girders with High-Level Precasting Bed Method |
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| YU Zheng-quan.Construction of 70-m Prestressed Concrete Box Girders with High-Level Precasting Bed Method[J].Bridge Construction,2003(B05):34-37. |
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| Authors: | YU Zheng-quan |
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| Institution: | The 4th Engineering Company of China Zhongtie Major Bridge Engineering Group Co., Ltd., Nanjing 210031, China |
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| Abstract: | The East China Sea Bridge is the first bridge having ever been built in China off-sea where the construction environment is very harsh. The 70-m box girder of the Bridge is 4 m in depth, bridge deck is 15.05 m in width and weight per girder is about 2 000 t, which will be assembled with segmental precast method. To minimize the usage of large lifting equipment in the precasting yard, the box girders will be precast on high-level precasting bed. In this paper, the design considerations, layout of precasting bed, types of formwork for the box girders, and selection of launching equipment and schemes are described. |
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| Keywords: | prestressed concrete girder precasting technique bridge erection |
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