基于有限元分析与静力试验的CFRP约束钢管混凝土力学性能研究  

Research on the Mechanical Properties of CFRP Constrained Steel Tube Concrete Based on Finite Element Analysis and Static Testing

作　　者：金必煌 李正焜 刘一鸣 JIN Bi-huang;LI Zheng-kun;LIU Yi-ming(Anhui Vocational College of Grain Engineering,Hefei 230001,China)

机构地区：[1]安徽粮食工程职业学院,安徽合肥230001

出　　处：《遵义师范学院学报》2025年第1期92-96,共5页Journal of Zunyi Normal University

摘　　要：为验证在钢管混凝土中添加碳纤维增强聚合物(Carbon Fiber Reinforced Polymer,CFRP)材料对其力学性能的影响,此次研究开展了静力实验和有限元模型仿真计算。计算结果显示,有限元模型与静力实验结果相对误差小于5%,认为有限元模型设置较为合理。有限元模型分析结果显示,钢管屈服强度和钢管厚度增加都能起到提升CFRP环向约束圆钢管混凝土(CFRP Circumferentially restrained concrete filled circular steel tube,CFRP-CFST)构件抗弯与抗扭能力的作用,但只有在加载后期时,CFRP-CFST构件的抗扭与抗弯能力才强于CFST构件。In order to verify the impact of adding Carbon Fiber Reinforced Polymer(CFRP)materials to concrete-filled steel tubes on their mechanical properties,static experiments and finite element model simulation calculations were carried out in this study.The calculation results showthat the relative error between the finite element model and the static experiment results is less than 5%,indicating that the setting of the finite element model is relatively reasonable.The analysis results of the finite element model show that both the increase in the yield strength of the steel tube and the increase in the thickness of the steel tube can play a role in enhancing the flexural and torsional capacities of(CFRP Circumferentially Restrained Concrete Filled circular Steel Tube,CFRP-CFST)components.However,the torsional and flexural capacities of CFRP-CFST components are stronger than those of CFST components only in the later stage of loading.

关 键 词：有限元 静力实验 CFRP 钢管混凝土 

分 类 号：TU398.9[建筑科学—结构工程]