混凝土弯拉疲劳的S-P-N方程  

The S-P-N equation of concrete flexural tensile fatigue

作　　者：吴云泉[1] 顾红军[2] 李海川[3] 

机构地区：[1]西北工业大学力学与土木建筑学院 [2]徐州空军学院,江苏徐州221000 [3]空军工程大学工程学院

出　　处：《混凝土》2005年第1期46-48,共3页Concrete

摘　　要：　根据84个混凝土小梁试件的弯拉疲劳寿命试验结果,对混凝土弯拉疲劳寿命的概率进行了优度拟合检验,并对概率分布的影响因素进行了定量分析。由概率分布导出了显含保证率(P)的混凝土弯拉疲劳寿命的S-P-N方程,进一步给出了考虑道(路)面工程混凝质量实际水平的S-P-N方程,便于工程应用。According to the flexural tensile fatigue life tests of 84 small concrete specimen beams, authors apply goodness-fit collation to the probability of concrete flexural tensile fatigue life, and quantitatively analyze the factors affecting the probability distribution which results in the S-P-N equation. The advantage of this concrete flexural tensile fatigue life equation lies is taken into consideration quality of concrete actually used for airfield or highway pavement and probability of guarantee(P) and is explicitly involved for an easy and convenient operation of the equation.

关 键 词：路面工程 混凝土弯拉强度 S—P—N方程 概率疲劳特性 

分 类 号：TU528.37[建筑科学—建筑技术科学] O21[理学—概率论与数理统计]