[1]邓明科,潘姣姣,秦 萌,等.高延性混凝土单轴受压本构模型研究[J].西安建筑科技大学学报(自然科学版),2016,48(06):826-831.[doi:10.15986/j.1006-7930.2016.06.009]
 DENG Mingke,PAN Jiaojiao,QIN Meng,et al.Research on the constitutive relation of high ductile fiber reinforced concrete under uniaxial compression[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(06):826-831.[doi:10.15986/j.1006-7930.2016.06.009]
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高延性混凝土单轴受压本构模型研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年06期
页码:
826-831
栏目:
出版日期:
2016-12-31

文章信息/Info

Title:
Research on the constitutive relation of high ductile fiber reinforced concrete under uniaxial compression
文章编号:
1006-7930(2016)06-0826-06
作者:
 邓明科1潘姣姣1秦 萌12刘海勃1
1.西安建筑科技大学土木工程学院,陕西 西安710055;2.成都天华西南建筑设计有限公司,四川 成都610016
Author(s):
DENG Mingke 1 PAN Jiaojiao1 QIN Meng12 LIU Haibo1 
1. School of Civil Engineering, Xi?an Univ. of Arch. & Tech., Xi?an 710055. China;2. Chengdu Tianhua (Southwest Region) Architecture Planning & Engineering Ltd., Chengdu 610016. China
关键词:
 高延性混凝土单轴受压本构模型抗压韧性
Keywords:
high ductile concrete uniaxial compression constitutive model compressive toughness
分类号:
TU375
DOI:
10.15986/j.1006-7930.2016.06.009
文献标志码:
A
摘要:
通过9组不同配合比高延性混凝土(high ductile concrete,HDC)试件的单轴受压试验,研究了纤维的横向约束作用对HDC试件单轴受压破坏形态的影响,分析了纤维掺量、粉煤灰掺量、水胶比和砂胶比对HDC单轴受压应力-应变曲线特征点的影响.根据HDC单轴受压应力-应变曲线的形状和特点,采用三种模型,建立了HDC的单轴受压本构模型方程;依据最小二乘法,对HDC单轴受压本构模型进行参数分析发现,采用模型2和模型3得到的拟合曲线与试验曲线吻合较好,其中模型2最接近于试验曲线.
Abstract:
Based on the uniaxial compression test of 9 groups of high ductile concrete (HDC) specimens with different mixture ratios, the lateral restraint effect of fiber on the failure mode was studied. The influence of various parameters on the characteristics in HDC uniaxial compressive stress-strain curve, such as fiber volume, fly-ash content, water-cement and sand-binder ratio were also studied. According to the shape and feature of HDC uniaxial compressive stress-strain curve, the constitutive model equation was established by using three kinds of model. On the basis of the least square method, the analysis of parameters shows that the fitting results of Model 2 and Model 3 are in good agreement with the experimental results, and Model 2 is much closer to the real curve test.

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备注/Memo

备注/Memo:
收稿日期:2016-04-12 修改稿日期:2016-11-15

基金项目:国家自然科学基金资助项目(51578445)

作者简介:邓明科(1979-),男,博士,教授,主要从事高性能土木工程材料与新型结构方面的研究.E-mail: dengmingke@126.com

更新日期/Last Update: 2017-01-26