摘要
在Ｓ－Ｎ曲线的基础上，建立了一个描述混凝土剩余强度衰减的模型，并利用该模型对在谱荷载作用下混凝土试件的疲劳寿命及其可靠性进行了分析，得到疲劳寿命基于三参数Ｗｅｉｂｕｌｌ分布的分布函数．通过试验验证了该方法得出的结果是可靠的，且计算简便，便于在工程中应用．
Based on the concrete S-N curve, a model of residual strength degradation is established in this paper, and then both the fatigue life and its reliability are modeled and analyzed by using this degradation model and the three-parameter Weibull distribution under spectrum loading. The experiments show that the present method is reliable, the analysis and calculation is simple and effective.
出处
《力学与实践》
CSCD
北大核心
2002年第1期28-30,共3页
Mechanics in Engineering
基金
云南省自然科学基金项目(98E004Z)资助.
