Construction method of Y-shaped pier cable-stayed supporting system: Fid-Bau Portal

Construction method of Y-shaped pier cable-stayed supporting system

ZHAO LICAI / ZHAO BIN

The invention relates to the technical field of Y-shaped pier bridge construction, in particular to a construction method of a Y-shaped pier cable-stayed supporting system. In the invention, the Y-shaped pier adopts layered pouring, and the overall construction of the pier column is divided into six stages, so that the quality control of the pier is facilitated. A bracket, a distribution beam, a stay cable and a working platform are arranged after the second section of pier is constructed, the bracket, the distribution beam and the working platform can provide supporting force for the Y-shaped pier, the stay cable can provide pulling force for the Y-shaped pier, and a balance tower system composed of the bracket, the distribution beam, the stay cable and the working platform is used for adjusting the internal acting force of the Y-shaped pier. And on the basis, the Y-shaped pier and the bent cap are poured in stages, the construction progress can be accelerated, the construction period is shortened, and economic benefits are improved.

本公开涉及Y型桥墩桥梁施工技术领域，尤其涉及一种Y型桥墩斜拉式支撑体系的施工方法。在本公开中，Y型桥墩采用分层浇筑，将墩柱的整体施工分成六个阶段，便于桥墩的质量控制。在第二节段桥墩施工后设置牛腿、分配梁、斜拉索和工作平台，牛腿、分配梁和工作平台能够为Y型桥墩提供支撑力，斜拉索能够为Y型桥墩提供拉力，牛腿、分配梁、斜拉索和工作平台组成的平衡塔架系统用于调节Y型桥墩的内部作用力。在此基础上分阶段进行浇筑Y型桥墩及盖梁，能够加快施工进度，缩短工期，提高经济效益。

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