玄武岩纤维混凝土单轴受拉损伤本构模型研究  

Research on Uniaxial Tensile Constitutive Model of Basalt Fiber Reinforced Concrete

作　　者：薛志成 关中植 裴强[3] 宁一凡 XUE Zhicheng;GUAN Zhongzhi;PEI Qiang;NING Yifan(School of Architecture and Civil Engineering, Heilongjiang University of Science and Technology, Harbin150022, China;Architecture and Civil Engineering Institute, Guangdong University of Petrochemical Technology, Maoming 525000, China;The Research and Development Center of Civil Engineering Technology, Dalian University, Dalian 116622, China)

机构地区：[1]黑龙江科技大学建筑工程学院,黑龙江哈尔滨150022 [2]广东石油化工学院建筑工程学院,广东茂名525000 [3]大连大学土木工程技术研究与开发中心,辽宁大连116622

出　　处：《广东石油化工学院学报》2022年第1期51-54,共4页Journal of Guangdong University of Petrochemical Technology

基　　金：国家自然科学基金项目(51478168,51878108);广东省自然科学基金面上项目(2021A151501057);广东省普通高校特色创新项目(2019KTSCX102);广东省普通高校青年创新项目(2019KQNCX086);广东石油化工学院自然科学研究项目(519192);哈尔滨市科技创新人才专项资金项目(2016RAXXJ022)。

摘　　要：为探究玄武岩纤维混凝土单轴受拉状态下的受力行为,采用等效应变假定理论,建立玄武岩纤维混凝土单轴受拉损伤演化方程。结合相关试验数据对考虑纤维影响的材料参数进行标定,得到单轴受拉损伤本构模型。通过试验曲线与理论曲线对比分析,验证损伤本构模型的准确性。以玄武岩纤维混凝土-钢筋梁三分点加载为例,运用该本构模型进行结构有限元分析,数值模拟结果与试验结果吻合程度较高,表明运用该损伤本构模型对结构受力进行分析具有可行性。To explore the force behavior of basalt fiber concrete under uniaxial tension,the equivalent strain hypothesis theory is used to establish a constitutive model of basalt fiber reinforced concrete uniaxial tensile damage.The uniaxial tensile damage constitutive mode is obtained by calibrating the material parameters considering the influence of fiber with relevant test data.Comparative analysis of test curve and theoretical curve verifies the accuracy of the damage constitutive model.Taking three-point loading of basalt fiber concrete beam as an example,the finite element analysis of the structure is carried out by using this constitutive model.Numerical simulation results are in good agreement with the experimental results,indicating that the damage constitutive model is feasible for structural stress analysis.

关 键 词：玄武岩纤维混凝土 本构模型 损伤变量 数值模拟 

分 类 号：TU377[建筑科学—结构工程]