Abstract: The relationship between zero initial displacement method and tangential displacement method was analyzed; two calculation methods of fabrication camber and calculation process of fabrication profile were introduced． Based on the case of Jiangjin Guanyinyan Yangtze Bridge，accuracy and practicality of the method was verified by comparing measured data with theoretical data．

Key words: composite cable-stayed bridge, fabrication profile, zero initial displacement method, tangential displacement method

摘要： 研究了零初始位移法和切线初始位移法的关系，介绍了2 种制造预拱度的计算方法，及制造线形的计算过 程。以江津观音岩长江大桥为背景，通过桥梁施工时的实测数据与理论数据对比，验证了理论的准确性和实用性。

关键词: 结合梁斜拉桥, 制造线形, 零初始位移法, 切线位移法