锦江双线特大桥三角形挂篮悬臂施工中的结构计算

Structure Calculation of Triangle Hanging Basket Cantilever Construction in Jinjiang Double-line Bridge

针对铜玉铁路线锦江双线特大桥（68＋128＋68）m三跨预应力混凝土悬臂现浇梁段，基于力学计算和计算机仿真模拟对三角挂篮施工过程中的两种工况进行分析。计算表明两种工况下三角形挂篮受力满足设计要求，均能符合施工过程中稳定性及变形要求。

In this paper, based on the construction technology of triangle hanging basket cantilever in the construction of continuous box girder of Jin-Jiang double-line super large bridge on high-speed railway between Tong-Chuan and Yu-Ping, this paper calculates and analyzes the structure stress during the construction process of the hanging basket cantilever. The correct calculation and analysis of the force are the key factors to the design of the hanging basket, and it is an important part of the safety construction in the construction process.