对乌兹别克斯坦混凝土规范中强度概念的解析

doi:10.3973/j.issn.1672-741X.2014.07.004

隧道建设（中英文） ›› 2014, Vol. 34 ›› Issue (7): 619-622.DOI: 10.3973/j.issn.1672-741X.2014.07.004

对乌兹别克斯坦混凝土规范中强度概念的解析

陈洪光

（中铁隧道集团有限公司工程试验中心，河南洛阳 471009）

收稿日期:2014-01-02 修回日期:2014-04-02 出版日期:2014-07-20 发布日期:2014-07-16
作者简介:陈洪光(1973—)，男，湖南衡山人，1995年毕业于洛阳大学，化学专业，大专，高级工程师，现从事试验检测工作。

Analysis on Strength Concept in Uzbekistan Concrete Codes

CHEN Hongguang

(Engineering Test Center, China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China)

Received:2014-01-02 Revised:2014-04-02 Online:2014-07-20 Published:2014-07-16

摘要/Abstract

摘要：

在乌兹别克斯坦的海外工程中，需要参考或使用乌兹别克斯坦相关混凝土规范，鉴于中乌两国规范之间存在差异，为了有助于理解乌兹别克斯坦规范中对混凝土的配制强度及强度等级等概念的规定，先从数理上对混凝土强度等级及配制强度的关系进行推导，然后介绍了两国规范对此的相关规定，进行横向对比，并着重对乌兹别克斯坦规范混凝土强度等级及配制强度的关系进行了解析。乌兹别克斯坦认为：乌兹别克斯坦混凝土标准对配制强度的规定本质上也是基于随机变量的正态分布，要求对混凝土强度等级应具有足够的保证率；混凝土配制强度与混凝土强度等级之间的计算公式在形式上与我国不同，但可以通过变换化为一致，其本质是一样的；指出乌兹别克斯坦相关机构对2个概念的理解和执行情况与我国有不同之处，需要引起注意。

关键词: 乌兹别克斯坦, 混凝土规范, 混凝土, 强度等级, 配制强度

Abstract:

During the construction of the overseas projects in Uzbekistan, relevant Uzbekistan concrete codes need to be referred to. However, there is some difference between Uzbekistan concrete codes and Chinese concrete codes. In the paper, the correlation between the concrete strength grade and the concrete preparation strength specified in Uzbekistan concrete codes is deduced mathematically, the regulations on the concrete strength grade and the concrete preparation strength specified in Uzbekistan concrete codes and those specified in Chinese concrete codes are presented and compared, and the correlation between the concrete strength grade and the concrete preparation strength are analyzed. Conclusions drawn are as follows: The specifications on the concrete preparation strength in Uzbekistan concrete codes are actually normal distribution based on random variables, which requires adequate guarantee rate for the concrete strength grade; The form of the conversion formula between the concrete preparation strength and the concrete strength grade provided in Uzbekistan concrete codes is different from that provided in Chinese concrete codes, but they can be converted into the same formula, because they are the same in nature; Relevant Uzbekistan organizations have different understanding on these two concepts from Chinese organizations and they also treat these two concepts differently, to which we should pay more attention.

Key words: Uzbekistan, concrete code, concrete, strength grade, preparation strength

中图分类号:

U 45

陈洪光. 对乌兹别克斯坦混凝土规范中强度概念的解析[J]. 隧道建设, 2014, 34(7): 619-622.

CHEN Hongguang. Analysis on Strength Concept in Uzbekistan Concrete Codes[J]. Tunnel Construction, 2014, 34(7): 619-622.

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对乌兹别克斯坦混凝土规范中强度概念的解析

Analysis on Strength Concept in Uzbekistan Concrete Codes

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