摘要
本文以试验为基础,研究在单调比例双轴压应力作用下混凝土的应力-应变关系,分析了峰值应变随应力比或峰值应力的变化规律,提出了相应的计算公式;将试验结果与几种本构模型进行了比较,并从工程应用角度提出了简单实用的应力-应变计算公式,其计算结果具有令人满意的精度。
Based on the experiments, the stress-strain response behavior of concrete under monotonic proportional biaxial compressive stresses is investigated with the law of the variation of peak (failure) strain with stress ratio or peak (failure) stress analysed. Formulas for estimating peak strain are proposed. The test results are in fairly close agreement with several constitutive models. From the view-point of practical use in engineering, a simple and convenient formula for predicting relations between stress and strain is presented and its calculating results indicate satisfactory precision.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1989年第1期18-25,共8页
Journal of Southwest Jiaotong University
基金
国家教委科学技术基金资助项目:预应力混凝土箱梁的复合受力结构行为的子项--混凝土多轴本构关系
关键词
混凝土
双轴应力
单调
本构模型
concrete
biaxial stress
monotonic
experiment
constitutive model
