STUDY ON DAMAGE DEVELOPMENT EQUATION OF STEEL FIBER CONCRETE UNDER SPLITTING LOAD

Qi Feng; Dang Gaihong; Chen Zhonggou

doi:10.13204/j.gyjz200906022

Volume 39 Issue 6

Dec. 2014

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Qi Feng, Dang Gaihong, Chen Zhonggou. STUDY ON DAMAGE DEVELOPMENT EQUATION OF STEEL FIBER CONCRETE UNDER SPLITTING LOAD[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(6): 92-95,78. doi: 10.13204/j.gyjz200906022

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STUDY ON DAMAGE DEVELOPMENT EQUATION OF STEEL FIBER CONCRETE UNDER SPLITTING LOAD

doi: 10.13204/j.gyjz200906022

1.
School of Landscape Architecture and Art,Zhejiang Forestry Univ. ,Hangzhou 311300,China

Received Date: 2008-09-02
Publish Date: 2009-06-20

Abstract

Abstract

Based on Moelands-Reinhardt single parameter exponential constitutive equation,steel fiber concrete damage development equation is obtained using equivalent strain hypothesis.Modified damage development equation of steel fiber concrete is proposed for eliminating mesh correlation of element characteristic length and reflecting the action of tensile strength and fracture energy on the damage development equation.The modified damage development equation comprehensively reflects the action of steel fiber volume ratio and aspect ratio on damage development.Relation of displacement force is obtained by splitting test and theoretical relation of displacement-force obtained by damage FEM calculation.Through comparison of empirical D-P relation and theoretical D-P relation,damage development equation of steel fiber concrete is verified in this paper.
- steel fiber concrete,
- splitting,
- damage development equation

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References(6)

References

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Berthelot J M,Robert J L.Damage Evaluation of Concrete TestSpecimens Related to Failure Analysis[J].Journal of EngineeringMechanics,ASCE,1990,116(3):587-604;

[3] 高伟,易成,谢和平,等.损伤理论在纤维混凝土弯曲性能研究中的应用[J].工业建筑,2002,32(11):1-4;

[4] Moelands Reinhardt.Fracture Mechanics of an Elastic SofteningMaterial Like Concrete.Heron,1984,29(2):336-342;

[5] 赵国藩,彭少民,黄承逵.钢纤维混凝土结构[M].北京:中国建筑工业出版社.1999:59-63;

[6] 齐锋.地铁车站纤维混凝土结构抗渗试验及阻裂防水机理的研究[D].上海:上海交通大学,2007:77-81.

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