摘要
先进行了混凝土在单级和两级等幅轴压重复应力作用下的高周疲劳试验；其次，根据混凝土疲劳损伤发展的三阶段普遍规律，从工程实际应用出发，定义了单级和两级等幅疲劳剩余静载极限强度和刚度衰减率的表达式；然后由试验数据得到了相应加载等级剩余静载极限强度和刚度衰减率的经验公式；最后将上述公式推广到了混凝土的多级等幅疲劳加载。
Abstract In this paper, firstly, the uniaxial high - cycle fatigue tests of plain concrete under one and two stages constant repeated compressive loading are carried out. Secondly, based on the general law that the fatigue damage development of plain concrete possesses three separate phases. and starting from the application in real engineering, the degradation rates of
出处
《哈尔滨建筑大学学报》
1998年第4期1-8,共8页
Journal of Harbin University of Civil Engineering and Architecture
