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斜拉索主梁索导管的安装定位一直是斜拉桥主梁施工的难点,其安装精度将直接影响后期的穿索施工,同时会改变斜拉索的受力。斜拉索的受力状况直接影响主梁合龙时的线形及质量。本文根据济祁高速淮河特大桥的施工实践,介绍和探讨了斜拉索主梁索导管的定位施工和测控问题。
The installation and positioning of the main cable duct of the stay cable has been a difficult point in the construction of the main girder of the cable-stayed bridge. The installation accuracy will directly affect the construction of the post-piercing cable and will change the force of the stay cable. The force of stay cable directly affects the line shape and the quality of the main girder. According to the construction practice of the Huaihe Grand Bridge on Jinan-Qiqihar high speed, this paper introduces and discusses the positioning construction and measurement and control of the cable duct of the main cable stayed cable.