Then the influence of activity admixture, reinforcement ratio of conventional bars, prestressed tendons and cylic load on shrinkage and creep are analyzed.

• 分析了影响混凝土收缩徐变的主要因素,特别是混凝土活性掺合料、普通钢筋和预应力钢筋的截面配筋及周期性反复荷载下对收缩徐变的影响;