杨卫忠,白晓玮,李 阳
高强混凝土轴压本构关系研究
Research on Stress-strain Relationship of High-strength Concrete
2018年第3期
高强混凝土;应力-应变关系;弹性模量;轴心抗压强度;不可逆变形
High-strength concrete; Stress-strain relationship; Elastic modulus; Axial compressive strength;Plastic strain
2018年第3期
1000-4637(2018)03-21-04
河南省基础与前沿技术(112300410242)。
杨卫忠,白晓玮,李 阳
郑州大学土木工程学院,450001
杨卫忠,白晓玮,李阳.高强混凝土轴压本构关系研究[J].混凝土与水泥制品,2018(3):21-24.
YANG W Z,BAI X W,LI Y.Research on Stress-strain Relationship of High-strength Concrete[J].China Concrete and Cement Products,2018(3):21-24.
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高强混凝土轴压本构关系研究
英文名 :
Research on Stress-strain Relationship of High-strength Concrete
刊期 :
2018年第3期
关键词 :
高强混凝土;应力-应变关系;弹性模量;轴心抗压强度;不可逆变形
Key words :
High-strength concrete; Stress-strain relationship; Elastic modulus; Axial compressive strength;Plastic strain
刊期 :
2018年第3期
DOI :
文章编号 :
1000-4637(2018)03-21-04
基金项目 :
河南省基础与前沿技术(112300410242)。
作者 :
杨卫忠,白晓玮,李 阳
单位 :
郑州大学土木工程学院,450001
杨卫忠,白晓玮,李 阳
杨卫忠,白晓玮,李阳.高强混凝土轴压本构关系研究[J].混凝土与水泥制品,2018(3):21-24.
YANG W Z,BAI X W,LI Y.Research on Stress-strain Relationship of High-strength Concrete[J].China Concrete and Cement Products,2018(3):21-24.
摘要
参数
结论
参考文献
引用本文
摘 要: 基于混凝土的细观损伤机制和损伤本构关系模型,推导了高强混凝土轴压弹塑性本构关系,结合已有研究成果,通过对初始弹性模量、峰值应变等模型关键参数进行综合分析,建立了基于混凝土轴心抗压强度参数的计算方法,所得应力-应变关系(含残余变形)既可用于单调加载,也适用卸载后再加载,可与已有的普通混凝土轴心抗压本构关系相协调,与试验结果相比较,预测结果与实际值吻合良好。
Abstract: Based on a mesoscopic failure mechanism, a damage constitutive model is introduced. An elasto-plastic stress-strain relationship of high-strength concrete is deduced. The key coefficients such as initial elastic modulus and peak strain used in the relationship are reanalyzed by existed results and calculated by prism strength. A simple calculation method of plastic strain is suggested. The stress-strain equation can be used to normal strength concrete and extra high strength concrete. The equation can also be used in loading and unloading. It can also reflect plastic strain. Compared with existed test results, the equation has a good agreement with actual stress-strain response.
关键词:
高强混凝土;应力-应变关系;弹性模量;轴心抗压强度;不可逆变形
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