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南门江大桥为下承式三跨连续梁拱组合体系桥梁,桥梁布跨为26.5 m+77 m+26.5 m=130 m,主跨为钢管混凝土提篮拱,横向设4片拱肋,拱肋采用哑铃形截面,桥道系采用梁格体系,由纵梁、横梁、桥道板组成,采取先梁后拱满堂支架的施工方案。主要介绍了该桥上部结构设计、钢管防腐方案、上部结构静力分析、拱桥稳定计算等相关内容。
Nanmen River Bridge is a three-span under-span continuous beam arch bridge system with a span of 26.5 m + 77 m + 26.5 m and a span of 130 m. The main span is a CFST basket arch with four arch ribs and arch ribs The use of dumbbell cross-section, the bridge system using beam system, by the stringers, beams, bridge plate composition, take the first beam after the arch arch full stent construction program. Mainly introduced the bridge superstructure design, steel pipe corrosion program, the superstructure static analysis, arch bridge stability calculation and so on.