废玻璃砂混凝土力学性能与应力-应变关系研究  

Mechanical properties and stress-strain constitutive relation of waste glass sand concrete

作　　者：鲍一捷 殷晓三[1,2] 赵毅 BAO Yi-jie;YIN Xiao-san;ZHAO Yi(School of Architectural&Civil Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China;Center for Henan Mechanics&Structures Engineering Research,Zhengzhou 450007,China;Center for Kunshan Construction Engineering Quality Testing,Suzhou 215337,China)

机构地区：[1]中原工学院建筑工程学院,河南郑州450007 [2]河南省力学与工程结构工程研究中心,河南郑州450007 [3]昆山市建设工程质量检测中心,江苏苏州215337

出　　处：《河南城建学院学报》2024年第4期19-25,共7页Journal of Henan University of Urban Construction

基　　金：河南省自然科学基金项目(242300420063);河南省高等学校重点科研项目(22B560023)。

摘　　要：为有效解决河砂短缺与废玻璃回收再利用问题,将废玻璃制品研磨成砂,取代混凝土中的河砂,制备废玻璃砂混凝土。对废玻璃砂混凝土进行抗压强度测试、弹性模量测试与单轴受压应力-应变曲线测试,分析不同的废玻璃砂取代率对混凝土力学性能的影响规律,利用分段式本构模型描述废玻璃砂混凝土的应力-应变关系,采用ABAQUS有限元软件模拟分析废玻璃砂混凝土的受压力学行为。结果表明:随着取代率的提高,废玻璃砂混凝土的力学性能先增强后减弱,当取代率为15%时废玻璃砂混凝土的性能最佳;掺入废玻璃砂对混凝土应力-应变曲线的形态无明显影响;有限元模型能够清晰地反映各试件受压过程中内部损伤的演化规律。To effectively solve the problems of shortage of river sand and recycling of waste glass,waste glass products were ground into sand to replace river sand in concrete in preparation for waste glass sand concrete.The compressive strength test,elastic modulus test and uniaxial compressive stress-strain curve test of waste glass sand concrete were carried out,and the influence law of different waste glass sand substitution rate on the mechanical properties of concrete was analyzed.The stress-strain relationship of waste glass sand concrete was described by piecewise constitutive model,and the compressive behavior of waste glass sand concrete was simulated and analyzed by ABAQUS finite element software.The results show that with the increase of substitution rate,the mechanical properties of waste glass sand concrete are strengthened first and then weakened,and the performance of waste glass sand concrete with substitution rate of 15% is the best.Mixing waste glass sand has no obvious effect on the shape of stress-strain curve of concrete.The finite element model can clearly reflect the evolution law of internal damage of each specimen during compression.

关 键 词：废玻璃砂混凝土 单轴受压 应力-应变关系 有限元模拟 

分 类 号：TU528.31[建筑科学—建筑技术科学]