大跨连续刚构施工控制要素探讨

Discussion on the control element factor of the large span continuous steel construction

通过对混凝土的收缩、徐变进行概述,针对大跨连续刚构建造中存在的问题,探讨了混凝土收缩、徐变的原因或机理,基于混凝土收缩徐变的基本理论,从影响收缩徐变的主要因素方面进行了施工控制,以防止混凝土裂缝的产生。

Through summarizing of shrinkage and creep of concrete, aiming at the existing problems of large span continuous steel structure, the concrete shrinkage and creep reasons and principle were discussed. Based on the concrete shrinkage and creep theory, the construction was controlled from the main element of influencing shrinkage and creep so as to prevent concrete crack.