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contributor authorShui Liu
contributor authorXin Wang
contributor authorYulin Zhou
contributor authorYahia M. S. Ali
contributor authorJian Ding
contributor authorZhishen Wu
date accessioned2025-04-20T10:21:24Z
date available2025-04-20T10:21:24Z
date copyright1/10/2025 12:00:00 AM
date issued2025
identifier otherJCCOF2.CCENG-4849.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4304548
description abstractThere is a limited understanding of the behavior of hybrid reinforced concrete (hybrid-RC) columns, incorporating both fiber-reinforced polymer (FRP) and steel bars, when subjected to eccentric compression loads. In this study, eccentric loading was performed on four hybrid-RC columns with inner-layer steel bars and ties and outer-layer basalt fiber–reinforced polymer (BFRP) bars and ties, along with one steel-RC column. The effects of spacing, surface treatment, and concrete cover of longitudinal BFRP bars were considered for the hybrid-RC columns. Subsequently, a finite-element model (FEM) was developed and validated using the experimental data. This FEM was then utilized to conduct a parametric study, exploring the effects of reinforcement ratio, ratio of ρs/ρf, eccentricity, and slenderness ratio. It was experimentally found that substituting the outer-layer steel bars in the steel-RC column with BFRP bars could improve the axial load capacity, although the stiffness and crack-resistance ability decreased. The numerical results indicated that, under larger eccentricities, hybrid-RC columns could more effectively utilize the high tensile strength of BFRP bars. Consequently, hybrid-RC columns exhibited higher cross-sectional strength and a slower reduction in axial load capacity as the slenderness ratio increased, compared to the steel-RC column. Furthermore, the slenderness limit for hybrid-RC columns was proposed based on the parametric analysis.
publisherAmerican Society of Civil Engineers
titleExperimental and Numerical Study of Concrete Columns Reinforced with BFRP and Steel Bars under Eccentric Loading
typeJournal Article
journal volume29
journal issue2
journal titleJournal of Composites for Construction
identifier doi10.1061/JCCOF2.CCENG-4849
journal fristpage04025010-1
journal lastpage04025010-17
page17
treeJournal of Composites for Construction:;2025:;Volume ( 029 ):;issue: 002
contenttypeFulltext


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