混凝土强度统计数据的分析与应用  

Analysis and Application of Statistical Data About Concrete Strength

作　　者：王华琪[1] 赵鸣[1] 李杰[1] 丁洁民[2] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]同济大学建筑设计研究院,上海200092

出　　处：《同济大学学报（自然科学版）》2007年第7期861-865,共5页Journal of Tongji University:Natural Science

基　　金：科技部"十五"国家科技攻关计划资助项目(2002BA806B05-4B);上海市房屋土地资源管理局资助项目(FDZ-20040223)

摘　　要：对大量混凝土抗压强度数据进行统计和分析,获取了混凝土强度质量特性;对混凝土强度进行正态分布检验,证明采用正态分布的可行性;对混凝土强度进行同分布检验,提出目前混凝土生产质量水平不稳定.批不合格率是确定抽样检验方案的关键参数,通过对统计数据的分析,提出检验批不合格率p的分布,为制定合理的抽样检验方案提供依据.Based on an analysis of the in-situ data about compression strength of concrete, the quality characteristic of concrete is obtained. The normal distribution of concrete strength is verified in this paper. By verifying the same distribution of concrete strength, an unstable level of the quality of concrete strength is concluded. The lot fraction defective is the key parameter of the sampling inspection method. The approximate distribution of lot fraction defective is first presented according to the analysis of these statistical data. These studies in this paper can contribute to the research of many problems about concrete strength, especially to the establishment of appropriate sampling inspection method.

关 键 词：混凝土强度 统计数据 批不合格率分布 抽样检验方案 

分 类 号：TU528.01[建筑科学—建筑技术科学]