Abstract
Glass fibre-reinforced polymer (GFRP) reinforced geopolymer concrete (GPC) has desirable durability performances to be used in harsh conditions. This study experimentally studied 15 reinforced concrete columns (12 with longitudinal GFRP bars and 3 with steel bars) to investigate the behaviour of circular GFRP-reinforced GPC members under axial and combined loading. The variables investigated in this study are, (1) the number of longitudinal bars, (2) the spiral pitch, (3) the material of longitudinal bars and (4) load eccentricities, while using the same GFRP spirals for all the specimens. The failure modes and load capacities were compared and discussed. By using the GFRP reinforcement, the load capacities reduced by 10% compared to steel, however the ductility increased by 24%. Both longitudinal and transverse reinforcement were found to affect the effectiveness of confinement. Finally, interaction diagrams were also plotted using the experimental data.
| Original language | English |
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| Title of host publication | APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures |
| Editors | Scott T. Smith, Tao Yu, Dilum Fernando, Zhenyu Wang |
| Publisher | APFIS Conference Series |
| ISBN (Electronic) | 9780648752899 |
| State | Published - 1 Dec 2019 |
| Externally published | Yes |
| Event | 7th Asia-Pacific Conference on FRP in Structures, APFIS 2019 - Brisbane, Australia Duration: 10 Dec 2019 → 13 Dec 2019 |
Publication series
| Name | APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures |
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Conference
| Conference | 7th Asia-Pacific Conference on FRP in Structures, APFIS 2019 |
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| Country/Territory | Australia |
| City | Brisbane |
| Period | 10/12/19 → 13/12/19 |
Bibliographical note
Publisher Copyright:© APFIS 2019. All right reserved.
Keywords
- Combined loading
- GFRP
- Geopolymer
- RC columns
ASJC Scopus subject areas
- Civil and Structural Engineering
- General Materials Science