Due to the concrete shrinkage and creep, temperature and other effects,the distortion of continuous rigid frame bridge is serious. The closure jacking force can counteract the influence partly. Based on the engineering background of a continuous rigid frame bridge,the jacking force was studied. The actual closure temperature is different from the designed temperature,needing to ensure the effect of the designed jacking force.%连续刚构桥在收缩徐变、温度等作用下主梁下挠和主墩的平面变形较为严重。在合龙前对悬臂段施加顶推力能部分消除这部分的影响，改善结构受力。本文以某大跨径连续刚桥为工程背景，对合龙顶推力进行研究，因实际合龙温度和设计合龙温度存在温差，需对设计顶推力进行温度修正。
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