GFRP筋超高性能混凝土梁受弯性能有限元分析_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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GFRP筋超高性能混凝土梁受弯性能有限元分析

Finite element analysis of bending behavior of ultra-high performance concrete beams with GFRP bars

2025年第2期

ABAQUS软件；超高性能混凝土（UHPC）梁；玻璃纤维增强聚合物（GFRP）筋；受弯性能；平衡配筋率

ABAQUS software; Ultra-high performance concrete(UHPC) beam; Glass fiber reinforced polymer (GFRP) bar; Bending performance; Balance reinforcement ratio

2025年第2期

10.19761/j.1000-4637.2025.02.63.07

山西省高等学校科技创新计划项目（2022L451）；大同市应用基础研究项目（2022055）；山西大同大学基础青年科研基金项目（2022Q35）。

王彦朋，张恒，聂晓梅，张芳芳*

山西大同大学建筑与测绘工程学院，山西大同 037003

王彦朋，张恒，聂晓梅，张芳芳*

王彦朋,张恒,聂晓梅,等.GFRP筋超高性能混凝土梁受弯性能有限元分析[J].混凝土与水泥制品,2025(2):63-69.

WANG Y P,ZHANG H,NIE X M,et al.Finite element analysis of bending behavior of ultra-high performance concrete beams with GFRP bars[J].China Concrete and Cement Products,2025(2):63-69.

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摘要：基于ABAQUS软件中的损伤模型，建立了玻璃纤维增强聚合物（GFRP）筋超高性能混凝土（UHPC）梁的受弯性能有限元模型，研究了UHPC抗压强度、GFRP筋配筋率、GFRP筋极限拉应变、GFRP筋和钢筋混合配筋、GFRP-钢筋复合筋对试件受弯性能的影响，并建立了平衡配筋率计算公式。结果表明：随着UHPC抗压强度的增大，试件的刚度变化有限，极限承载力显著增大；随着GFRP筋配筋率的增大，试件的刚度、极限承载力和跨中最大挠度均增大；随着GFRP筋极限拉应变的增大，试件的极限承载力和跨中最大挠度增大；混合配筋时，随着GFRP筋配筋面积的增加，试件的极限承载力和跨中最大挠度增大；与纯GFRP筋试件相比，GFRP-钢筋复合筋试件有明显的屈服阶段，荷载-跨中挠度曲线呈“三折线”特征；建立的平衡配筋率计算公式的准确度较高。 Abstract: Based on the damage model in ABAQUS software, a finite element model of the bending performance of ultra-high performance concrete(UHPC) beams with glass fiber reinforced polymer (GFRP) bars was established. The compressive strength of UHPC, the reinforcement ratio of GFRP bars, the ultimate tensile strain of GFRP bars, the mixed reinforcement of GFRP bars and steel bars, and the composite reinforcement of GFRP bars and steel bars on the bending performance of the specimens were studied, and a formula for calculating the balanced reinforcement ratio was established. The results show that as the compressive strength of UHPC increases, the stiffness change of the specimen is limited, and the ultimate bearing capacity significantly increases. As the reinforcement ratio of GFRP bars increases, the stiffness, ultimate bearing capacity, and maximum mid-span deflection of the specimen increase. As the ultimate tensile strain of GFRP bars increases, the ultimate bearing capacity and maximum mid-span deflection of the the specimen increase. When mixed reinforcement is used, as the area of GFRP bars increases, the ultimate bearing capacity and maximum mid-span deflection of the specimen increase. Compared with the specimen with pure GFRP bars, the specimen with composite reinforcement of GFRP bars and steel bars has a distinct yield stage, and the load-mid-span deflection curves exhibits a "trilinear" characteristic. The established formula for calculating the balanced reinforcement ratio has high accuracy.

英文名 : Finite element analysis of bending behavior of ultra-high performance concrete beams with GFRP bars

刊期 : 2025年第2期

关键词 : ABAQUS软件；超高性能混凝土（UHPC）梁；玻璃纤维增强聚合物（GFRP）筋；受弯性能；平衡配筋率

Key words : ABAQUS software; Ultra-high performance concrete(UHPC) beam; Glass fiber reinforced polymer (GFRP) bar; Bending performance; Balance reinforcement ratio

刊期 : 2025年第2期

DOI : 10.19761/j.1000-4637.2025.02.63.07

文章编号 :

基金项目 : 山西省高等学校科技创新计划项目（2022L451）；大同市应用基础研究项目（2022055）；山西大同大学基础青年科研基金项目（2022Q35）。

作者 : 王彦朋，张恒，聂晓梅，张芳芳*

单位 : 山西大同大学建筑与测绘工程学院，山西大同 037003

王彦朋，张恒，聂晓梅，张芳芳*

王彦朋,张恒,聂晓梅,等.GFRP筋超高性能混凝土梁受弯性能有限元分析[J].混凝土与水泥制品,2025(2):63-69.

WANG Y P,ZHANG H,NIE X M,et al.Finite element analysis of bending behavior of ultra-high performance concrete beams with GFRP bars[J].China Concrete and Cement Products,2025(2):63-69.

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摘要

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参考文献

引用本文

Abstract: Based on the damage model in ABAQUS software, a finite element model of the bending performance of ultra-high performance concrete(UHPC) beams with glass fiber reinforced polymer (GFRP) bars was established. The compressive strength of UHPC, the reinforcement ratio of GFRP bars, the ultimate tensile strain of GFRP bars, the mixed reinforcement of GFRP bars and steel bars, and the composite reinforcement of GFRP bars and steel bars on the bending performance of the specimens were studied, and a formula for calculating the balanced reinforcement ratio was established. The results show that as the compressive strength of UHPC increases, the stiffness change of the specimen is limited, and the ultimate bearing capacity significantly increases. As the reinforcement ratio of GFRP bars increases, the stiffness, ultimate bearing capacity, and maximum mid-span deflection of the specimen increase. As the ultimate tensile strain of GFRP bars increases, the ultimate bearing capacity and maximum mid-span deflection of the the specimen increase. When mixed reinforcement is used, as the area of GFRP bars increases, the ultimate bearing capacity and maximum mid-span deflection of the specimen increase. Compared with the specimen with pure GFRP bars, the specimen with composite reinforcement of GFRP bars and steel bars has a distinct yield stage, and the load-mid-span deflection curves exhibits a "trilinear" characteristic. The established formula for calculating the balanced reinforcement ratio has high accuracy.

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GFRP筋超高性能混凝土梁受弯性能有限元分析

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