高标号混凝土徐变系数理论与试验比较分析

Contrast Analysis Between the Creep Experiment and Theory Calculating of Concrete

结合实际工程开展了高标号混凝土徐变试验研究,通过现场试验与理论分析,观测掌握混凝土梁的徐变特征及变化规律.以C 50混凝土梁为主要研究对象,进行了应力应变测量、变形测量,并通过计算绘制了徐变系数-加载龄期曲线,将计算值和理论值进行对比分析,提出了理论计算值及实测值之间存在差异的几点原因.

Based on the concrete creep experiment combined to the actual engineering, this paper presents the creep characteristic and changing regulation through the theories analysis and the spot experiment. Taking the C50 concrete beam as the main research object, the stress strain and deflection are measured. According to the curve diagraph of creep coefficient - loading time drawn from the related data, the contrast analysis about results between the experiment and the theory is given.