| 混凝土抗压疲劳寿命概率分布及其置信度计算 |
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| 引用本文： | 王凤武,楼梦麟,徐人平,张立翔.混凝土抗压疲劳寿命概率分布及其置信度计算[J].同济大学学报(自然科学版),2003,31(10):1146-1150. |
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| 作者姓名： | 王凤武 楼梦麟 徐人平 张立翔 |
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| 作者单位： | 1. 同济大学,土木工程防灾国家重点实验室,上海,200092
2. 昆明理工大学,机电工程学院,云南,昆明,650051 |
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| 基金项目： | 云南省自然科学基金资助项目 (98E0 0 4Z) |
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| 摘 要： | 基于混凝土的失效机理和统计理论 ,用最弱环模型分析了混凝土抗压疲劳寿命分布规律 ,并与正态模型进行了比较 .试验结果表明 ,三参数Weibull分布较正态分布和对数正态分布更适宜描述混凝土抗压疲劳寿命分布规律 .在三参数Weibull分布置信限研究基础上 ,对要求高可靠度、高置信度的疲劳寿命进行了计算
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| 关 键 词： | 混凝土 疲劳寿命 最弱环模型 三参数Weibull分布 置信曲线 |
| 文章编号： | 0253-374X(2003)10-1146-05 |
| 修稿时间： | 2002年10月23 |
Probability Distribution for Concrete Life and Its Confidence Limits |
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| WANG Feng-wu ,LOU Meng-lin ,XU Ren-ping ,ZHANG Li-xiang.Probability Distribution for Concrete Life and Its Confidence Limits[J].Journal of Tongji University(Natural Science),2003,31(10):1146-1150. |
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| Authors: | WANG Feng-wu LOU Meng-lin XU Ren-ping ZHANG Li-xiang |
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| Institution: | WANG Feng-wu 1,LOU Meng-lin 1,XU Ren-ping 2,ZHANG Li-xiang 2 |
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| Abstract: | According to the principle of probability and statistics,the mechanisms of concrete damage and the characteristic of the various distributions are studies,and statistical model of concrete life is established in this paper.On the basis of the academic analyses and test,a statistic model of concrete life,based on the weakest chain theory,is put forward,and three-parameter Weibull distributions to describe its distributing rule is used to consequently study the concrete life.Accordingly,the livability of the life in the specified confidence can be got. |
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| Keywords: | concretes fatigue life the weakest chain model three-parameter Weibull distribution confidence curves |
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