[1]张军伟,高丹盈,朱海堂..钢筋钢纤维混凝土牛腿抗裂性能有限元分析[J].郑州大学学报(工学版),2009,30(04):1-5.[doi:10.3969/j.issn.1671-6833.2009.04.001]
　ZHANG Junwei,GAO Danying,Zhu Haiting.Finite element analysis of crack resistance of reinforced steel fiber concrete corbel[J].Journal of Zhengzhou University (Engineering Science),2009,30(04):1-5.[doi:10.3969/j.issn.1671-6833.2009.04.001]
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钢筋钢纤维混凝土牛腿抗裂性能有限元分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
30卷
期数:
2009年04期
页码:
1-5
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Finite element analysis of crack resistance of reinforced steel fiber concrete corbel
作者:
张军伟; 高丹盈; 朱海堂.
郑州大学新型建材与结构研究中心,河南郑州,450002, 郑州大学新型建材与结构研究中心,河南郑州,450002, 郑州大学新型建材与结构研究中心,河南郑州,450002
Author(s):
ZHANG Junwei; GAO Danying; Zhu Haiting
关键词:
钢纤维混凝土;  牛腿;  抗裂性能;  有限元分析
Keywords:
steel fiber concrete;  corbel;  crack resistance;  Finite element analysis
DOI:
10.3969/j.issn.1671-6833.2009.04.001
文献标志码:
A
摘要:
在17个钢筋钢纤维混凝土牛腿试件试验的基础上,采用非线性有限元方法探讨钢纤维体积率、剪跨比和混凝土强度对钢筋钢纤维混凝土牛腿抗裂性能的影响.结果表明,掺入钢纤维后,钢筋混凝土牛腿的正截面抗裂荷载可提高10%左右;随着混凝土强度增加,钢筋钢纤维混凝土牛腿的正截面抗裂荷载线性提高;但是,随着剪跨比增加,钢筋钢纤维混凝土牛腿的正截面抗裂荷载明显降低.并且通过数值模拟分析结果和试验结果的对比,验证了有限元分析模型中所采用的单元类型、材料本构关系及破坏准则的合理性,为实际应用提供相应的参考.
Abstract:
Based on the test of 17 corbel specimens of reinforced steel fiber concrete, the effects of steel fiber volume ratio, shear span ratio and concrete strength on the crack resistance of reinforced steel fiber concrete corbel were discussed by nonlinear finite element method. The results show that after adding steel fiber, the crack resistance load of the positive section of the reinforced concrete corbel can be increased by about 10%. With the increase of concrete strength, the crack resistance load of the positive section of reinforced steel fiber concrete corbel increases linearly. However, with the increase of the shear-span ratio, the positive cross-section crack load of reinforced steel fiber concrete corbel decreases significantly. By comparing the numerical simulation analysis results and experimental results, the rationality of the element type, material constitutive relationship and failure criterion used in the finite element analysis model is verified, and the corresponding reference is provided for practical application.

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[1]朱海堂,范向前,李金章..耐碱剂对钢纤维混凝土强度的影响研究[J].郑州大学学报(工学版),2011,32(01):5.[doi:10.3969/j.issn.1671-6833.2011.01.002]
[2]樊友景,樊大为..钢纤维增强混凝土梁的抗剪强度研究[J].郑州大学学报(工学版),2009,30(03):9.[doi:10.3969/j.issn.1671-6833.2009.03.003]
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[4]高丹盈,黄承逵.钢纤维混凝土抗拉性能的试验研究[J].郑州大学学报(工学版),1991,12(02):23.
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[6]高丹盈.钢纤维混凝土与钢筋的粘结强度[J].郑州大学学报(工学版),1990,11(03):54.
　Gao Danying,The bonding strength of steel fiber concrete and steel bars[J].Journal of Zhengzhou University (Engineering Science),1990,11(04):54.

更新日期/Last Update: 1900-01-01