FRP约束高温损伤混凝土轴压应力-应变设计型模型

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发布时间：2020-01-06 00:00:00

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FRP约束高温损伤混凝土轴压应力-应变设计型模型

Design-oriented Stress-strain Model for Heat-damaged Concrete Confined with Fiber Reinforced Polymers

2020年第7期

纤维增强复合材料；混凝土；高温；设计型模型；数值分析

FRP; Concrete; High temperature; Design-oriented model; Numerical analysis

2020年第7期

10.19761/j.1000-4637.2020.07.055.05

温州市科学技术局基础性科研项目（G20180028）；温州市高校科协“产学研”融合创新服务项目；国家自然科学基金项目（51708349）；浙江省自然科学基金项目（LY20E080017）。

丁斌1，欧阳利军2，张春雄2

1.温州职业技术学院建筑工程系，325035；2.上海理工大学环境与建筑学院，200093

丁斌1，欧阳利军2，张春雄2

丁斌,欧阳利军,张春雄,等. FRP约束高温损伤混凝土轴压应力-应变设计型模型[J].混凝土与水泥制品,2020(7):55-58+63.

DING Bin,OUYANG Li-jun,ZHANG Chun-xiong,et al.Design-oriented Stress-strain Model for Heat-damaged Concrete Confined with Fiber Reinforced Polymers[J].China Concrete and Cement Products,2020(7):55-58+63.

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摘要：为了探究高温损伤对纤维增强复合材料（FRP）约束混凝土轴压应力-应变模型的影响规律，本文基于多个现有FRP约束常温未损伤混凝土轴压应力-应变设计型模型和已有试验数据，建立了FRP约束高温损伤混凝土应力-应变设计型模型。结果表明，基于TENG提出的模型，经修正比例系数和常温未约束混凝土的抗压强度而建立的设计型模型预测精度较好。Abstract:Inordertoexploretheeffectofelevatedtemperaturedamageontheaxialcompressionconstitutivemodeloffiberreinforcedpolymer（FRP）confinedconcrete,thedesign-orientedmodelwithhighprecisionisdeterminedbasedonanalyzingtheexistingexperimentaldata.Finally,adesign-orientedstress-strainmodelofFRP-confinedheat-damagedconcreteunderaxialcompressionisestablished.TheresultsshowthatbasedonthemodelproposedbyTENG,thepredictionaccuracyofthedesign-orientedmodelwhichisestablishedbymodifyingproportionalcoefficientandthecompressivestrengthofunconstrainedconcreteatroomtemperatureisgood.

英文名 : Design-oriented Stress-strain Model for Heat-damaged Concrete Confined with Fiber Reinforced Polymers

刊期 : 2020年第7期

关键词 : 纤维增强复合材料；混凝土；高温；设计型模型；数值分析

Key words : FRP; Concrete; High temperature; Design-oriented model; Numerical analysis

刊期 : 2020年第7期

DOI : 10.19761/j.1000-4637.2020.07.055.05

文章编号 :

基金项目 : 温州市科学技术局基础性科研项目（G20180028）；温州市高校科协“产学研”融合创新服务项目；国家自然科学基金项目（51708349）；浙江省自然科学基金项目（LY20E080017）。

作者 : 丁斌1，欧阳利军2，张春雄2

单位 : 1.温州职业技术学院建筑工程系，325035；2.上海理工大学环境与建筑学院，200093

丁斌1，欧阳利军2，张春雄2

丁斌,欧阳利军,张春雄,等. FRP约束高温损伤混凝土轴压应力-应变设计型模型[J].混凝土与水泥制品,2020(7):55-58+63.

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参考文献

引用本文

Abstract: In order to explore the effect of elevated temperature damage on the axial compression constitutive model of fiber reinforced polymer（FRP） confined concrete, the design-oriented model with high precision is determined based on analyzing the existing experimental data. Finally, a design-oriented stress-strain model of FRP-confined heat-damaged concrete under axial compression is established. The results show that based on the model proposed by TENG, the prediction accuracy of the design-oriented model which is established by modifying proportional coefficient and the compressive strength of unconstrained concrete at room temperature is good.

关键词:

纤维增强复合材料；混凝土；高温；设计型模型；数值分析

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预制混凝土构件结构性能检验规范解析

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混掺玄武岩纤维与引气剂对混凝土抗冻性能和力学性能的影响

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FRP约束高温损伤混凝土轴压应力-应变设计型模型

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