文章以甘肃地区永古高速柳条河大桥为研究背景,分析了混凝土箱梁水化热温度时程曲线和温差的分布形式,研究了混凝土箱梁水化热温度的变化规律,并对该地区典型环境下混凝土裂缝的控制方法提出了建议,为相似环境地区提高混凝土箱梁的质量提供参考。 In this paper, the Yongguang Highway Wuguhe Bridge in Gansu Province is taken as the research background. The distribution pattern of the hydration heat time history curve and temperature difference of the concrete box girder is analyzed. The variation law of hydration heat temperature of the concrete box girder is studied, and the concrete crack The methods of control are put forward to provide reference for improving the quality of concrete box girder in similar environment.