[1]高丹盈,徐磊,李趁趁..钢纤维混凝土轴拉初裂强度的计算方法[J].郑州大学学报(工学版),2002,23(01):31-33.[doi:10.3969/j.issn.1671-6833.2002.01.009]
　GAO Danying,XU Lei,Lee took advantage of it.Calculation method of shaft tensile initial crack strength of steel fiber concrete[J].Journal of Zhengzhou University (Engineering Science),2002,23(01):31-33.[doi:10.3969/j.issn.1671-6833.2002.01.009]

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钢纤维混凝土轴拉初裂强度的计算方法()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

23卷

期数:

2002年01期

页码:

31-33

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Calculation method of shaft tensile initial crack strength of steel fiber concrete

作者:

高丹盈; 徐磊; 李趁趁.

郑州大学环境与水利学院,河南,郑州,450002, 郑州大学环境与水利学院,河南,郑州,450002, 郑州大学环境与水利学院,河南,郑州,450002

Author(s):

GAO Danying; XU Lei; Lee took advantage of it

关键词:

钢纤维混凝土;  轴拉初裂强度;  计算方法

Keywords:

steel fiber concrete;  Shaft tensile initial crack strength;  Calculation method

DOI:

10.3969/j.issn.1671-6833.2002.01.009

文献标志码:

A

摘要:

钢纤维混凝土轴拉初强度是确定钢纤维混凝土抗裂度的重要指标,也是间接衡量钢纤维混凝土其它力学性能的指标.通过对钢纤维混凝土轴拉试验结果的分析,研究了钢纤维外形和体积率、混凝土强度等级对钢纤维混凝土轴拉初裂强度的影响.结果表明:混凝土轴拉初裂强度分别随钢纤维体积率的增大和混凝土强度等级的提高而增大.最后,建立了钢纤维混凝土轴拉初裂强度的计算模型,提出了钢纤维混凝土轴拉初裂强度的计算公式,供修订我国的<钢纤维混凝土设计与施工规程>以及工程设计与施工参考.

Abstract:

The initial axial tensile strength of steel fiber concrete is an important index for determining the crack resistance of steel fiber concrete, and it is also an index for indirectly measuring other mechanical properties of steel fiber concrete. Through the analysis of the axial tensile test results of steel fiber concrete, the effects of steel fiber shape and volume ratio and concrete strength grade on the initial crack strength of steel fiber concrete shaft tensile were studied. The results show that the initial tensile cracking strength of concrete shaft increases with the increase of steel fiber volume rate and the increase of concrete strength grade, respectively. Finally, the calculation model of the axial tensile initial crack strength of steel fiber concrete is established, and the calculation formula of the axial initial crack strength of steel fiber concrete is proposed for the revision of China’s < steel fiber concrete design and construction regulations> as well as engineering design and construction reference.

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