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合肥南环线南淝河及经开区特大桥采用三跨全长461m的钢桁梁柔性拱结构,均小角度跨越高速公路,施工技术难度大,涉路施工安全风险高。结合现场实际情况,拟定三种架设方案并充分论证比选,优选带拱顶推、拱脚合龙为实施性方案。采用桥梁领域结构分析及设计系统SAP2000对整个顶推施工过程进行模拟,计算分析结果验证方案技术可行。
The south Nanhe River and the OECD Grand Bridge of Hefei South Ring Road adopt the three-span flexible steel arch trusses with a total length of 461m, all crossing the expressway at a small angle. The construction technology is very difficult and the road safety risk is high. According to the actual situation in the field, three kinds of erection plans are drawn up and fully justified and compared. The structure of the bridge domain analysis and design system SAP2000 to simulate the entire process of pushing the construction, calculation and analysis results verify that the program is feasible.