[1]徐娜,傅学怡.基于能量损失理论的混凝土受压损伤本构模型[J].深圳大学学报理工版,2017,34(No.6(551-660)):569-575.
 Xu Na and Fu Xueyi.The compression damage constitutive model of concrete based on the theory of energy loss[J].Journal of Shenzhen University Science and Engineering,2017,34(No.6(551-660)):569-575.
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基于能量损失理论的混凝土受压损伤本构模型()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第34卷
期数:
2017年No.6(551-660)
页码:
569-575
栏目:
土木建筑工程
出版日期:
2017-11-30

文章信息/Info

Title:
The compression damage constitutive model of concrete based on the theory of energy loss
作者:
徐娜1傅学怡2
1) 广东科学技术职业学院建筑工程学院,广东珠海519090; 2) 深圳大学土木工程学院,广东深圳518060
Author(s):
Xu Na1 and Fu Xueyi2
1) Guangdong Polytechnic of Science and Technology, Zhuhai 519090, Guangdong Province, P.R.China 2) Shenzhen University Civil Engineering College, Shenzhen 518060, Guangdong Province, P.R.China
关键词:
混凝土能量损失Najar损伤理论受压损伤本构模型损伤演变方程结构破坏
Keywords:
concrete energy loss Najar damage theory compression injury constitutive model damage evolution equation structural failure
文献标志码:
A
摘要:
在Najar损伤理论基础上,基于《混凝土结构设计规范》(GB 50010—2010),提出一种新型的混凝土单轴受压损伤本构模型,从而给出混凝土单轴受压损伤的计算公式和演变方程,更好地描述完整的没有简化的混凝土单轴受压过程中的损伤状况. 给出常用强度等级的混凝土受压损伤本构曲线和损伤变量方程,对比分析不同强度等级混凝土的损伤曲线. 应用软件ABAQUS,建立一个矩形钢筋混凝土筒体剪力墙模型,绘制模型结构的极限承载力骨架曲线. 拟合对比分析,建立材料损伤和结构破坏的宏观近似关系,从而证明了假定是合理的. 该本构模型具有参数少、简单实用和精度较高等优点,利用此新方法可以有效地解决混凝土受压损伤的仿真分析.
Abstract:
Based on Najar damage theory, according to ‘Code for design of concrete structure’ (GB 50010—2010), a new generic formula of concrete compression injury constitutive model?is put forward, and the damage evolution equation is pushed out, which describes complete and non-simplified damage condition in the process of uniaxial compression of concrete preferably. For common strength grade concrete, the paper gives the compression damage constitutive curve and damage variable equations and analyzes contrastively the concrete damage curves of different strength grade. By using finite element software ABAQUS, the cylinder shear wall of rectangular section reinforced concrete is simulated, and the skeleton curve of ultimate bearing capacity under theory condition is drawn. Through fitting analysis, the similar macro relation between materials damage and structure destruction is established, which verifies that the assumption is reasonable. For this constitutive model its advantages are that the parameters are less and its mathematical form is simple and practical, and that the precision is higher, and the new method provides another solution with compression damage simulation analysis of concrete structure.

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更新日期/Last Update: 2017-10-10