预应力主梁在高速公路桥梁结构中广泛采用 ,但主梁预施应力后由于梁体混凝土徐变 ,跨中上挠度值随着时间的增长而增大 ,影响工程施工质量和行车安全。本文介绍了在六股河特大桥主梁预制、安装、和桥面系施工过程中对主梁、拱度控制技术的研究。 Prestressed girders are widely used in bridge structures of expressways. However, due to the creep of beam concrete after the prestressed beams of girders, the span mid-upper deflection value increases with time, affecting the construction quality and traffic safety. This paper introduces the research on the girder and camber control technology in the prefabrication, installation and construction of the bridge deck of the Liushihe Super Large Bridge.