期刊
APPLIED SCIENCES-BASEL
卷 11, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/app11072900
关键词
compressive strength; hybrid-CFFT; FEA; mechanical properties; FRP
类别
资金
- Construction Technology Innovation Program (CTIP) of the Korea Institute of Construction & Technology Evaluation and Planning (KICTEP) [10CCTI-C053530-02-000000]
This study conducted experiments and numerical analysis on the compressive strength of fiber-reinforced polymer tubes, finding that the compressive strength of concrete-filled fiber-reinforced polymer tubes improved under the effect of filament winding technology, and also revealed some existing errors.
In this study, an experiment on compressive strength of the hybrid concrete-filled fiber-reinforced polymer (FRP) tube (CFFT) confined by filament winding was conducted to improve the longitudinal strength while considering the thickness of filament winding as a variable. A maximum error of 17% was observed when the results of performing the finite element analysis (FEA) by applying the mechanical properties of the fiber-reinforced polymer (FRP) materials suggested in previous studies were compared to those of the compressive strength experiment on the hybrid-CFFT. Moreover, a maximum error of 15% was exhibited when the results derived from the strength equation proposed by analyzing the compressive strength experiment were compared. Furthermore, the compressive strength of the hybrid-CFFT increased by up to 14% when the longitudinal compressive strength of the pre-tensioned spun high strength concrete (PHC) pile and concrete-filled tube (CFT) were compared.
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