Numerical Investigation of the Bond-Slip Behavior between Double-Helix BFRP Macrofibers and ConcreteSource: Journal of Materials in Civil Engineering:;2024:;Volume ( 036 ):;issue: 012::page 04024429-1DOI: 10.1061/JMCEE7.MTENG-18455Publisher: American Society of Civil Engineers
Abstract: Basalt fiber–reinforced polymer (BFRP) is widely used to reinforce concrete due to its high strength, lightweight nature, good corrosion resistance, and low cost. Previous studies have shown that the double-helix BFRP macrofiber has better bond behavior with concrete compared with other types of BFRP fibers. This is attributed to its irregular geometry. The bond-slip behavior between double-helix BFRP macrofiber and concrete is further numerically studied in this study. The corresponding finite-element model is established, and the accuracy of the numerical method is validated by the experimental results based on fiber-matrix pullout tests. The effects of twisted pitches, bundle numbers, and cross-section shapes of the fiber on the bond-slip behavior are extensively investigated and discussed. It is shown by the numerical results that the bond stress and energy-dissipating capacity increase with the decrease of twisted pitches (30, 20, 10, and 5 mm). The bond stress of the fiber with a twisted pitch of 5 mm can be increased by 17.0% at most compared with the fiber with a twisted pitch of 30 mm. Furthermore, it is found that the double-helix BFRP fiber has higher bond stress than the fiber with three or four bundles, with corresponding increases of 11.9% and 16.9%, respectively.
|
Collections
Show full item record
contributor author | Chunlei Zhang | |
contributor author | Xuejie Zhang | |
contributor author | Honglong Wang | |
date accessioned | 2025-04-20T10:35:46Z | |
date available | 2025-04-20T10:35:46Z | |
date copyright | 10/3/2024 12:00:00 AM | |
date issued | 2024 | |
identifier other | JMCEE7.MTENG-18455.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4305025 | |
description abstract | Basalt fiber–reinforced polymer (BFRP) is widely used to reinforce concrete due to its high strength, lightweight nature, good corrosion resistance, and low cost. Previous studies have shown that the double-helix BFRP macrofiber has better bond behavior with concrete compared with other types of BFRP fibers. This is attributed to its irregular geometry. The bond-slip behavior between double-helix BFRP macrofiber and concrete is further numerically studied in this study. The corresponding finite-element model is established, and the accuracy of the numerical method is validated by the experimental results based on fiber-matrix pullout tests. The effects of twisted pitches, bundle numbers, and cross-section shapes of the fiber on the bond-slip behavior are extensively investigated and discussed. It is shown by the numerical results that the bond stress and energy-dissipating capacity increase with the decrease of twisted pitches (30, 20, 10, and 5 mm). The bond stress of the fiber with a twisted pitch of 5 mm can be increased by 17.0% at most compared with the fiber with a twisted pitch of 30 mm. Furthermore, it is found that the double-helix BFRP fiber has higher bond stress than the fiber with three or four bundles, with corresponding increases of 11.9% and 16.9%, respectively. | |
publisher | American Society of Civil Engineers | |
title | Numerical Investigation of the Bond-Slip Behavior between Double-Helix BFRP Macrofibers and Concrete | |
type | Journal Article | |
journal volume | 36 | |
journal issue | 12 | |
journal title | Journal of Materials in Civil Engineering | |
identifier doi | 10.1061/JMCEE7.MTENG-18455 | |
journal fristpage | 04024429-1 | |
journal lastpage | 04024429-11 | |
page | 11 | |
tree | Journal of Materials in Civil Engineering:;2024:;Volume ( 036 ):;issue: 012 | |
contenttype | Fulltext |