双铰拱桥中铰芯的选择直接影响到拱桥使用效果和使用寿命,在本文中,作者结合实体工程,采用钢筋砼铰芯替代传统设计的铅心铰芯,并对施工过程及原理进行分析。经过一年多的跟踪调查,采用钢筋砼铰芯取得了非常好的效果。 The choice of hinge core in double-hinge arch bridge directly affects the service life and service life of the arch bridge. In this paper, the author combined the concrete engineering, the use of reinforced concrete hinge instead of the traditional design of the lead core hinge, and the construction process and principle analysis. After more than a year of follow-up investigation, the use of reinforced concrete hinge core has achieved very good results.