Study on Damage Constitutive Model of Reactive Powder Concrete in Uniaxial Tension

被引：1

作者：

Zhang, Hongji ^{[1
]}

Lu, Hang ^{[2
]}

Wang, Ziheng ^{[2
]}

Gao, Siming ^{[2
]}

Wen, Bo ^{[2
]}

Ju, Yanzhong ^{[1
]}

机构：

[1] Northeast Elect Power Univ, Sch Civil Engn & Architecture, Jilin 132012, Peoples R China

[2] State Grid Heilongjiang Elect Power Co Ltd, Elect Power Res Inst, Heilongjiang 150000, Peoples R China

来源：

BUILDINGS | 2024年 / 14卷 / 12期

关键词：

reactive powder concrete; tensile strength; Weibull distribution; damage constitutive model; FIBER-REINFORCED CONCRETE; HIGH-PERFORMANCE CONCRETE; MECHANICAL-PROPERTIES; BEHAVIOR; AGGREGATE;

D O I：

10.3390/buildings14123805

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, the damage constitutive model of reactive powder concrete (RPC) in uniaxial tension is investigated. The relationship between the uniaxial tensile strength of RPC and the steel fiber admixture was analyzed by preparing RPC specimens with different steel fiber volume admixtures for uniaxial tensile tests, and the stress-strain curves were recorded. The test results show that the uniaxial tensile strength of RPC is significantly enhanced with an increase in steel fiber doping, especially after the doping amount is greater than 2%, showing a linear increase. Based on the classical damage mechanics and Weibull distribution, the damage evolution equation and the constitutive model of RPC uniaxial tension were established. The validation shows that the model can effectively describe the damage process of RPC in uniaxial tension, which provides a theoretical basis for the application of RPC in engineering practice.

引用

页数：12

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