中文摘要：

介绍了混凝土的疲劳、徐变、收缩和温度等时变效应,深入阐述了各种时变效应对混凝土材料和结构产生损伤的机理与研究进展。介绍了国内外广泛使用的混凝土强度破坏准则,提出混凝土强度破坏准则中应充分考虑时变效应的影响。对混凝土的损伤机理和强度破坏准则的研究具有一定的借鉴意义。

英文摘要：

Time-varying effects of concrete are described,including fatigue,creep,shrinkage and temperature and other factors,damage mechanism and research progress of concrete structure caused by various time-varying effects are reviewed.The concrete failure criteria widely used at home and abroad is introduced,it is suggested that we should take full account of time-varying effects in concrete failure criteria.This article has guiding significance in concrete damage mechanisms and failure criteria.