Abstract The bridge discussed in this article is the first super-long bridge of the Zheng-Wan high-speed railway project to span the main channel of the South-to-North Water Diversion Project in China. The bridge is a 160 m beam–arch composite structure with concrete-filled steel tubes. To ensure water quality safety, a construction method of first the beam and then the arch was adopted, in which the steel tube arch ribs were constructed by vertical rotation. The construction monitoring of the vertical rotation of the arch ribs was conducted by numerical analysis to clarify the strength and stability of the arch ribs and tower in the construction of the vertical rotation of the steel tube arch ribs, and to evaluate the safety of the support and local components during construction. Finally, the vertical rotation construction of the steel tube arch ribs of the bridge was successfully completed under rigorous numerical analysis and precise construction monitoring.

中文翻译：

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钢管拱肋竖向旋转的施工分析与监测

摘要 本文所讨论的桥梁是郑万高铁工程中第一座跨越南水北调主航道的超长桥梁。该桥为160 m梁-拱组合结构，钢管混凝土。为确保水质安全，采用先梁后拱的施工方法，钢管拱肋采用垂直旋转施工。通过数值分析对拱肋竖向旋转进行施工监测，明确钢管拱肋竖向旋转施工中拱肋和塔架的强度和稳定性，评价支护的安全性。和施工期间的局部组件。最后，