摘要
本文通过试验研究了钢纤维混凝土在变幅载荷作用下的疲劳损伤机理.试验中发现;经历先低后高的变载模式作用,且低应力的循环次数低于某临界值时,钢纤维混凝土具有低应力循环下的疲劳“锻炼效应”.
The experimental study on fatigue damage mechanism of Steel Fibre Reiforced Concrete (SFRC) under variable amplitude cyclic loading is introduced in this paper. The specimen are subjected to variable amplitude loading history in which the early stress level is lower and the late stress level is higher. Test results show that if the cyclic number of the early lower stress were lower than a critical number, there exists the Enhancement Action Phenomena in fatigue of SFRC.
出处
《土木工程学报》
EI
CSCD
北大核心
1995年第3期66-71,共6页
China Civil Engineering Journal
