【摘要】 针对目前混凝土收缩开裂性能测试方法存在的问题,提出一种新的试验方法,即诱导开裂法,并通过数值计算与试验来验证该方法的可靠性.该方法克服了已有同类试验方法中存在的裂缝出现位置随机、裂缝细小、初裂时间迟等带来的观测难度大、周期长和误差大等缺点,同时避免了混凝土材料不均匀性所造成的试验误差.更多还原

【Abstract】 A new inducing crack method for measurement of cracking behavior of concrete is developed,aiming at solving the problem in the current test method of concrete cracking behaviors.The trustiness of the method is verified by mathematical analysis and experiment.The method overcomes the shortage of conventional test method that the place where crack appears is stochastic and the width of crack is smaller and the crack appears late.And because of these shortage the observation of crack is difficult,the experiment takes longer time and the error of experiment is big.The method developed can avoid the error caused by concrete heterogeneity.更多还原