混凝土动态拉伸试验方法的研究

Test method for concrete under dynamic tension

基于能量原理对混凝土轴拉试件的稳定开裂条件进行了讨论．根据本文和其他研究者的试验，对混凝土动态拉伸试验所需要的仪器设备条件，轴拉、弯拉和劈裂三种拉伸试验方法对混凝土动态拉伸试验的适用性进行了分析．在此基础上提出了混凝土动态拉伸试验的试验方法．该方法已通过了试验验证。

The condition, on which concrete specimens have been steady cracked under uniaxial tensile loading, are discussed based on the energy theory. According to the authors' and other researches, the requirements for set up and measurement in dynamic tensile test of concrete are analyzed. The suitability of three test methods including uniaxial tension, splitting tension and flexure test method for concrete test under dynamic tension are also analyzed. Based on the above analyses, a new test method for concrete under dynamic tension is suggested.