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| 东海大桥平曲线预应力混凝土顶推连续梁的设计与施工 | |
| 引用本文： | 任明飞,刘晓霞. 东海大桥平曲线预应力混凝土顶推连续梁的设计与施工[J]. 预应力技术, 2005, 9(2): 17-34 |
| 作者姓名： | 任明飞 刘晓霞 |
| 作者单位： | 中铁大桥局集团二公司，江苏南京 |
| 摘 要： | 东海大桥在大乌龟岛附近由于特殊的地理条件而采用预应力混凝土顶推连续梁结构，桥梁处于半径2500米的圆曲线上，顶推梁全长400米。本文介绍了该段工程的结构设计特点；使用平面分析程序对结构的施工阶段进行了结构安全验算；重点介绍了施工工艺的设计以及在施工中为满足曲线顶推的要求所采取的一些特殊施工措施。 |
| 关 键 词： | 预应力混凝土 东海大桥 设计与施工 顶推连续梁 平曲线 结构设计特点 连续梁结构 地理条件 安全验算 施工阶段 分析程序 施工措施 施工工艺 圆曲线 顶推梁 工程 |
Design and construction of flat curved prestressed concrete jacking continuous beams of Donghai Bridge |
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| Mingfei Ren,Xiaoxia Liu. Design and construction of flat curved prestressed concrete jacking continuous beams of Donghai Bridge[J]. Prestress Technology, 2005, 9(2): 17-34 | |
| Authors: | Mingfei Ren Xiaoxia Liu |
| Affiliation: | China Railway Bridge Bureau Group 2 Company Nanjing, Jiangsu |
| Abstract: | Due to the special geographical conditions near Daguu Island, the Donghai Bridge adopts the prestressed concrete pushing continuous beam structure. The bridge is on a circular curve with a radius of 2500 meters and the total length of the pushing beam is 400 meters. This paper introduces the structural design features of this section. The plane analysis program is used to check the structure safety in the construction stage. The design of construction technology and some special construction measures to meet the requirements of curve pushing in construction are emphatically introduced. |
| Keywords: | Prestressed concrete Donghai Bridge Design and construction Pushing continuous beam Flat curve Structural design features Continuous beam structure Geographical conditions Safety check calculation Construction phase Analysis program Construction measures Construction technology A circular curve Pushing beam ENGINEERING |
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