太和特大桥转体桥施工技术

结合商合杭高速铁路太和特大桥上跨漯阜铁路的工程特点,为确保铁路运营安全,减少或消除对既有铁路的影响,用以确保工程项目能够安全、高效、高质量的完成施工结合工程项目的特点选用采用转体桥施工方案。即先进行承台、球铰及牵引系统施工,并搭设支架浇筑墩身、连续梁,然后在封锁要点后进行转体,在铁路上方合拢。文章以该工程为例对转体桥施工技术与控制要点探讨,旨在对今后类似工程上跨既有铁路提供借鉴经验。

In view of the engineering characteristics of the Luo-Fu railway overpass across the Taihe Grand Bridge of Shang-He-Hang High-speed Railway, and in order to ensure the safety of railway operation and reduce or eliminate the influence of the construction on the existing railway, so that the project can achievea safe, efficient, and high-quality completion of the construction, wetake advantage of the characteristics of the project and adopt the idea of bridge rotation construction technology, that is, we start withthe construction of bearing platform, spherical hinge, and traction system going first, and set up the support to cast piers and continuous beams, and then rotate after blocking the key points, and close up above the railway. This paper takes this project as an example to discuss the bridge rotation construction technology and control points, in order to provide reference of experience for similarprojects across existing railways in the future.