Behavior of concrete-filled GFRP tube columns under cyclic axial compression

Hui, Chung‐Yuen; Li, Yonggang; Zhou, Zhongyi; Hai, Ran

doi:10.1016/j.conbuildmat.2021.123566

Cited by 11 publications

(1 citation statement)

References 21 publications

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“…Experiments on the uniaxial compression behavior of 41 FRP tube-concrete-encased steel (FTCES) columns were carried out by Ren et al [30], and an analysis-based path-dependent load-strain model was proposed and confirmed. Quasi-static experiments of 13 GFRP-tube-confined recycled concrete columns and GFRPtube-confined high-strength ordinary concrete columns under cyclic axial compression were studied by Hui et al [31], and the failure trend of GFRP tubes confined by recycled concrete columns was similar to that of GFRP-tube-confined high-strength ordinary concrete columns, and the axial compression-bearing capacity of the composite columns could be effectively improved by GFRP tubes; finally, the axial load-bearing capacity of GFRP tube concrete columns was derived based on the mechanical equilibrium conditions.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of Special-Shaped Reinforced Concrete Composite Columns Encased with GFRP Core Columns

Jiang

et al. 2022

Buildings

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In order to investigate the mechanical behavior of special-shaped reinforced concrete composite columns encased with GFRP core columns (EGCSSCs) subjected to axial load, twenty-seven full-scale EGCSSCs were designed with varying parameters: axial compressive strength of core concrete (fcc), axial compressive strength of peripheral concrete (fco), thickness of GFRP tube (tgfrp), ratio of longitudinal reinforcement (ρv), stirrup ratio (ρs) and GFRP ratio in the cross-section (α). The three-dimensional finite element refined models of EGCSSCs were established by ABAQUS finite element software, and the response of EGCSSCs under axial load was studied based on the verification of finite element modeling. The influence of different parameters on the ultimate axial compressive strength (Nus), initial stiffness (K), and ductility index (µ) of EGCSSCs was obtained, and the typical failure mode of EGCSSCs was clearly described. The results showed that the main failure mode of the EGCSSCs subjected to axial load was bulging outward at the middle of the EGCSSCs, showed yielding of the longitudinal steel bars, and was crushing both ends of the peripheral concrete. When the column was damaged, the peripheral concrete reached peak stress earlier than the core concrete. All specimens exhibited excellent load-carrying capacity and good ductility. Moreover, with the existence of GFRP core columns, the Nus and µ of the columns were increased by 11.61% and 140.86%. In addition, K increased with the increase in fcc, fco, tgfrp and α, and the largest increments were 23.99%, 50.54%, 21.77%, and 34.19%, respectively. µ decreased with the increase in fcc and fco, which decreased by 14.05% and 40.28%, respectively. By using statistical regression and introducing the constraint effect coefficients and the reduction coefficient, the calculation formula for the axial compression-bearing capacity of EGCSSCs was derived, which could lay a foundation for the popularization and application of this kind of composite column in practical engineering.

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Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of Special-Shaped Reinforced Concrete Composite Columns Encased with GFRP Core Columns

Jiang

et al. 2022

Buildings

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Research on the Tensile Mechanical Properties and Fracture Characteristics of GFRP Mortar Tubes under Impact Loads

Wang,

Zong,

Wang

2024

KSCE Journal of Civil Engineering

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Incorporating sea sand into self-compacting concrete: a systematic review

Sindhurashmi,

Nayak,

Adesh

et al. 2024

Discov Appl Sci

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The increasing demand for river sand, driven by infrastructure development, poses environmental challenges. The study aims to address the depletion of river sand by integrating sea sand as a fine aggregate in the production of Self-Compacting Concrete (SCC) through a Systematic Literature Review. Furthermore, it includes an in-depth bibliographic analysis of relevant literature using VOSviewer to generate network visualizations of author-co-citation and country-wise citations. The article offers diverse options for sustainable solutions to mitigate environmental impacts while meeting infrastructure demands. It focuses on assessing the durability of SCC incorporating sea sand through real-time monitoring with the Internet of Things (IoT) and employing artificial intelligence methods like PointRend and neural networks to study the properties of SCC utilizing sea sand. Subsequently, the study emphasizes the need to address river sand shortages in infrastructure development and provides insights for further research on enhancing the properties of SCC with sea sand.

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Behavior of concrete-filled GFRP tube columns under cyclic axial compression

Cited by 11 publications

References 21 publications

Mechanical Behavior of Special-Shaped Reinforced Concrete Composite Columns Encased with GFRP Core Columns

Mechanical Behavior of Special-Shaped Reinforced Concrete Composite Columns Encased with GFRP Core Columns

Research on the Tensile Mechanical Properties and Fracture Characteristics of GFRP Mortar Tubes under Impact Loads

Incorporating sea sand into self-compacting concrete: a systematic review

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