| 以次序统计量分布探讨评定混凝土强度最小值问题 |
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| 引用本文： | 李志峰,李开灿.以次序统计量分布探讨评定混凝土强度最小值问题[J].襄樊学院学报,2011,32(2):24-27. |
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| 作者姓名： | 李志峰 李开灿 |
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| 作者单位： | 湖北师范学院数学与统计学院,湖北黄石,435002 |
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| 摘 要： | 利用概率统计中次序统计量的精确分布研究了《GB/T50107-2010混凝土强度检验评定标准》中试块强度最小值的合理界限的确定问题.根据生产方、用户方风险控制的置信水平,运用最小次序统计量的密度函数求得试块强度最小值fcu,min的取值范围,提出一种新的判别不等式,即fcu,min≥f cu,k-λ*2 S f cu,并且给出系数λ*2的取值表,这样既解决仅凭经验判断所带来的困惑,又能够提高数据处理的可信度.
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| 关 键 词： | 抗压强度 次序统计量 分布函数 |
Concrete Compressive Strength's Minimum Value by the Precise Distribution Function of Order Statistic |
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| LI ZHi-feng,LI Kai-can.Concrete Compressive Strength's Minimum Value by the Precise Distribution Function of Order Statistic[J].Journal of Xiangfan University,2011,32(2):24-27. |
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| Authors: | LI ZHi-feng LI Kai-can |
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| Institution: | LI ZHi-feng,LI Kai-can(College of Mathematics and Statistics,Hubei Normal University,Huangshi 435002,China) |
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| Abstract: | In the paper,we have inquired into a problem in GB/T50107-2010 Standard for evaluation of concrete compressive strength by the precise distribution function of order statistic in mathematical statistics,the problem concerns the qualified boundaries of concrete test-components strength's minimum value.According to the confidence level of the risk control by producers and users,using the density function of a minimum order statistic to solve the range of concrete test-components strength's minimum value,we ha... |
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| Keywords: | Compressive strength Order statistic Distribution function |
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