混凝土徐变与损伤的耦合试验研究

本文重点研究了混凝土材料损伤对徐变变形的影响，以及混凝土非线性徐变过程中的损伤大小。本文将长期荷载下混凝土的性能作为研究对象，从混凝土徐变以及损伤两方面出发，运用超声波检测的方法测量混凝土内部损伤的演化规律，分析高持荷水平下混凝土材料发生徐变破坏的时间及对应的徐变变形，分析了徐变对混凝土材料损伤的影响规律，得出了高持续荷载下混凝土材料徐变与损伤相互影响的规律。

Statistical dynamic damage model of concrete under initial static loading

In this paper,the influence of concrete material damage on creep deformation and the damage size in the process of nonlinear creep of concrete are studied. Concrete under long-term load as the research object,from the two aspects of concrete creep and damage,study the damage deformation of concrete under sustained load,using ultrasonic testing to measure the evolvement rules about the inside damage of concrete,analyzed the time of creep damage when materials under a level high of load,and the correspond to creep deformation,analyzed the influence of creep to concrete materials damage, synthesize that the concrete materials under high sustained load-the effect of creep and damage to each other.