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CFST拱桥是一种新颖的桥梁结构体系,因其独特的受力性能和较大的跨越能力,使之在现代桥梁建设中具有很好的优势。由于该桥型主拱肋预拱度的设置,对于改善成桥后桥梁的线形及受力状态具有重要意义,因此本文以石家庄市滹沱河特大桥为依托,采用SAP2000有限元分析软件对CFST拱桥拱顶预拱度的设置问题进行了研究和分析,优化了传统施工中预拱度设置方法,取得了良好的工程应用效果。
CFST arch bridge is a novel bridge structure system, because of its unique force performance and large span capability, making it in the modern bridge construction has a good advantage. Because of the pre-camber setting of the main arch rib of the bridge, which is of great significance for improving the line shape and stress state of the bridge after the bridge is completed, this paper relies on the Hutuo River Bridge in Shijiazhuang City, and uses SAP2000 finite element software to analyze the CFST arch bridge The setting of the dome camber is studied and analyzed, the method of setting the camber in the traditional construction is optimized, and the good effect of engineering application is obtained.