This paper aims at bridge with high pier and long span adopting single or double featheredge piers , the stability of bridge in the whole construction process is analyzed combined with research conclusion of bridge stability and concrete creep and shrinkage , bridge construction period is divided according to actual construction - process and concrete creep and shrinkage regularity and structure is analyzed as plane truss at each time increment 本文针对常用单、双薄壁墩的高墩大跨径桥梁，结合国内外对桥梁结构稳定与混凝土徐变收缩的研究成果，对节段法施工的桥梁进行稳定性全过程分析方法研究。根据实际施工过程及混凝土徐变收缩规律对施工全过程划分时段，对每个具体计算时刻采用平面杆系结构进行计算分析，不同计算时刻具有不同的结构体系。
