混凝土单轴直接拉伸强度试验方法的研究

分析了夹持方式对拉伸试件中应力分布的影响，采用双钢板粘贴夹持方式，研究了一种混凝土单轴直接拉伸强度试验新方法，并通过大量实验对其合理性进行了探讨，结果表明，该方法简单方便、应力分布均匀、试验结果稳定、尺寸效应较小，是混凝土一种理想的拉伸试验方法。

Study on the Test Method of Concrete Strength in Uniaxial Direct Tension

After analyzing the effect of grip manner on the stress distribution in tensile specimen, a glued double-plated grip manner was adopted, and a new test method for evaluating the tensile strength of concrete in uniaxial direct tension was developed. A large number of experiments were carried out by this new method, and its rationalities were discussed. The results show that it is a reasonable tensile test method characterized by its convenience, uniform stress distribution, higher stability and lower size effect.