[1]杨卫忠,樊濬..混凝土单轴受压本构模型及其应用[J].郑州大学学报(工学版),2006,27(01):1-4.[doi:10.3969/j.issn.1671-6833.2006.01.001]
　Yang Weizhong,Fan Huan.Concrete uniaxial compression constitutive model and its application[J].Journal of Zhengzhou University (Engineering Science),2006,27(01):1-4.[doi:10.3969/j.issn.1671-6833.2006.01.001]
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混凝土单轴受压本构模型及其应用()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
27卷
期数:
2006年01期
页码:
1-4
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Concrete uniaxial compression constitutive model and its application
作者:
杨卫忠; 樊濬.
郑州大学土木工程学院,河南,郑州,450002;同济大学土木工程学院,上海,200092, 河南省建设厅设计处,河南,郑州,450014
Author(s):
Yang Weizhong; Fan Huan
关键词:
混凝土;  本构模型;  损伤;  受压
Keywords:
DOI:
10.3969/j.issn.1671-6833.2006.01.001
文献标志码:
A
摘要:
通过一个细观模型,从损伤的角度解释混凝土在压应力作用下应力-应变关系的非线性和应变软化,根据等效应变假设和损伤力学基本原理,建立了单轴受压混凝土的弹塑性损伤本构模型,可导出已有单轴受压本构关系,并能反映混凝土的刚度退化和卸载后的残余变形;提出一类损伤函数和塑性变形经验表达式,利用应力-应变曲线特征条件和优化算法确定模型参数;与已有受压试验结果相比较,结果吻合良好.
Abstract:
Through a meso-model, the nonlinearity and strain softening of the stress-strain relationship of concrete under compressive stress are explained from the perspective of damage, and the elastoplastic damage constitutive model of uniaxial compression concrete is established according to the isometric hypothesis and the basic principle of damage mechanics, which can derive the existing uniaxial compression constitutive relationship and reflect the stiffness degradation of concrete and the residual deformation after unloading. A class of damage function and plastic deformation empirical expression are proposed, and the stress-strain curve feature conditions and optimization algorithm are used to determine the model parameters. Compared with the results of the existing compression test, the results are in good agreement.

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更新日期/Last Update: 1900-01-01