| FRP约束混凝土抗压强度研究进展 |
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| 引用本文： | 王培,于德湖,杨伟松.FRP约束混凝土抗压强度研究进展[J].混凝土,2021(1):47-50,56. |
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| 作者姓名： | 王培 于德湖 杨伟松 |
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| 作者单位： | 青岛理工大学 理学院,山东 青岛 266033;青岛理工大学 土木工程学院,山东 青岛 266033 |
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| 基金项目： | 国家自然科学基金项目(51608287)。 |
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| 摘 要： | 素混凝土经纤维增强复合材料(FRP)包裹约束后,在三向应力作用下,可提高其抗压强度。通过对碳纤维约束混凝土(CFRP)、芳纶纤维约束混凝土(AFRP)、玻璃纤维约束混凝土(GFRP)及玄武岩纤维约束混凝土(BFRP)相关试验数据的整理总结,分析了影响FRP约束混凝土抗压强度的主要因素。引入约束性能经验系数及混凝土强度影响系数的概念,推导出了统一的FRP约束混凝土标准圆柱体抗压强度计算模型,可为FRP约束混凝土的实际应用提供参考。
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| 关 键 词： | FRP约束混凝土 抗压强度 影响因素 计算模型 |
Research progress on compressive strength of FRP confined concrete |
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| WANG Pei,YU Dehu,YANG Weisong.Research progress on compressive strength of FRP confined concrete[J].Concrete,2021(1):47-50,56. |
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| Authors: | WANG Pei YU Dehu YANG Weisong |
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| Affiliation: | (School of Science,Qingdao University of Technology,Qingdao 266033,China;School of Civil Engineering,Qingdao University of Technology,Qingdao 266033,China) |
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| Abstract: | After restrained by fiber reinforced polymer(FRP),the compressive strength of plain concrete is improved under triaxial pressure.By summarizing the experimental data of CFRP confined concrete,AFRP confined concrete,GFRP confined concrete and BFRP confined concrete,the primary factors affecting the strength of FRP confined concrete are discussed.Based on the concepts of empirical constraint coefficient and concrete strength influence coefficient,the calculation model of the cylinder compressive strength of FRP confined concrete is derived,which provides reference for practical engineering application of FRP confined concrete. |
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| Keywords: | FRP confined concrete compressive strength affecting factor calculation model |
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