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广州增城大桥采用飞燕式,无横撑外加斜靠拱的设计方案,主跨设计为(30+100+30)m。全桥采用支架施工的方法,连接主拱和斜拱的横撑和支撑斜拱的临时支架有多种施工顺序。采用空间有限元模型详细计算分析了不同横撑的安装及斜拱临时支架拆除顺序对拱桥结构受力的影响,得到了较优的施工方法,对此类桥梁施工具有较大的参考价值。
Guangzhou Zengcheng Bridge using fly-style, without transversal arch plus oblique arch design, the main span design (30 +100 +30) m. The whole bridge adopts the method of bracket construction. There are a variety of construction sequences for the horizontal braces connecting the main arch and the inclined arch and the temporary braces supporting the inclined arch. The finite element model is used to calculate and analyze the influence of different bracing and the temporary support disassembly sequence on the stress of the arch bridge structure. The optimal construction method is obtained, which is of great reference value for such bridge construction.