中承式劲性骨架钢筋混凝土箱肋拱桥施工技术

On construction technique for half-through stiff skeleton reinforced arch bridge with steel box ribs

通过对安康高速公路堰吉河大桥中承式劲性骨架钢管混凝土箱肋拱桥施工过程的研究,总结出了该类桥梁的施工工艺与方法,并从拱座基础施工、裸拱施工、灌注钢管混凝土、横梁安装等方面作了论述,可为同类桥梁施工提供借鉴。

According to the research on the construction process of the half-through stiff skeleton reinforced arch bridge with steel box ribs in Yanji River Bridge along Ankang Expressway,the paper sums up the construction craft and methods for the kind of bridge,and indicates from the skewback foundation construction,bare arch,and grouting steel pipe concrete,and installation of horizontal beam,so as to provide some reference for the construction of similar bridges.