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以港珠澳大桥珠海连接线前山河特大桥为背景,提出一种适用于波形钢腹板组合箱梁桥的新型拖吊结合式挂篮结构及施工方法,以解决施工过程中波纹钢腹板运输、吊装技术难题。利用Midas Civil软件对新型挂篮结构进行了有限元仿真计算及分析,研究了该挂篮结构在多种工况下的受力变形特性、抗倾覆及自锚固安全情况。结果表明:该拖吊结合式挂篮结构设计合理,在不同工况下均能满足规范和设计要求,保证了工程的安全顺利进行。
Taking the Qian Shan River Bridge of Zhuhai-Zhuhai-Zhuhai-Hong Kong-Zhuhai-Zhuhai-Zhuhai-Zhuhai-Zhuhai Bridge as a background, a new type of drag-and-drop combined hanging basket structure and construction method applied to the corrugated steel web composite box girder bridge was proposed to solve the problem of corrugated steel web Transport, lifting technical problems. The finite element simulation calculation and analysis of the new type of hanging basket structure are carried out by means of Midas Civil software. The mechanical deformation characteristics, anti-overturning and self-anchoring safety conditions of the hanging type basket structure under various conditions are studied. The results show that the structure of the hanger combined with hanging hanger is reasonable in design and can meet the specifications and design requirements under different working conditions, thus ensuring the safety and smooth progress of the project.