Bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars
This study investigates the bending performance of ultra-high-performance concrete (UHPC) beams reinforced with non-prestressed steel-FRP composite bars (SFCBs) and prestressed fiber-reinforced polymer (FRP) bars. The finite element software ABAQUS is used to simulate the strain behaviors of materia...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
|
| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221450952401324X |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841545921120174080 |
|---|---|
| author | Wenjie Ge Feng Zhang Subedi Sushant Ashraf Ashour Kangbao Chen Shihu Fu Linfeng Qiu Laiyong Luo Dafu Cao |
| author_facet | Wenjie Ge Feng Zhang Subedi Sushant Ashraf Ashour Kangbao Chen Shihu Fu Linfeng Qiu Laiyong Luo Dafu Cao |
| author_sort | Wenjie Ge |
| collection | DOAJ |
| description | This study investigates the bending performance of ultra-high-performance concrete (UHPC) beams reinforced with non-prestressed steel-FRP composite bars (SFCBs) and prestressed fiber-reinforced polymer (FRP) bars. The finite element software ABAQUS is used to simulate the strain behaviors of materials, applying a real strain model for concrete and equivalent plastic strain models for reinforcements. Six beams with different concrete types and reinforcements (prestressed or non-prestressed) are simulated and analyzed. These simulations yielded results that closely aligned with the results tested. Based on the validated FE models, a parametric analysis is conducted to examine the effects of mechanical properties of concrete, mechanical property of non-prestressed reinforcement, and the reinforcement ratio of prestressed FRP bars and non-prestressed SFCB on the bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars. The results indicate that, as the concrete strength increases from C35 to UHPC140, both the ultimate load and ultimate deflection of flexural beams exhibit a gradual increase. Notably, employing UHPC100 as the matrix results in specimens achieving the highest ductility, deformation, and energy absorption. When non-prestressed FRP bars are replaced by SFCBs, the ultimate load of the beams decreases by 8 %, but energy absorption increases by 34 %. With an increase in the steel ratio of SFCBs, the ductility, deformation, and energy absorption also gradually increase. Moreover, increasing the reinforcement ratio of both prestressed FRP and non-prestressed SFCBs results in an increase in ultimate load, but a decrease in ultimate deflection, ductility, deformation, and energy absorption capacity. Additionally, by analyzing the comprehensive performance of various beams, the economic benefits of UHPC beams reinforced with non-prestressed SFCBs and prestressed FRP bars are less prominent, but they are still suitable for structures that require high strength, durability, and ductility. This research can provide valuable technical references for the analysis and design of UHPC beams reinforced with SFCBs and prestressed FRP bars. |
| format | Article |
| id | doaj-art-9635c3b697434614b988567f4b2da92a |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-9635c3b697434614b988567f4b2da92a2025-01-11T06:41:24ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04172Bending performance of SFCBs reinforced UHPC beams prestressed with FRP barsWenjie Ge0Feng Zhang1Subedi Sushant2Ashraf Ashour3Kangbao Chen4Shihu Fu5Linfeng Qiu6Laiyong Luo7Dafu Cao8College of Civil Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, ChinaCollege of Civil Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, ChinaCollege of Civil Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, ChinaFaculty of Engineering and Digital Technologies, University of Bradford, Bradford BD71DP, UKCollege of Civil Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, ChinaYangzhou Jianwei Construction Engineering Testing Center Co., Ltd., Yangzhou, Jiangsu 225002, ChinaNantong Construction Engineering Quality Supervision Station, Nantong, Jiangsu 226000, ChinaJiangsu Yangjian Group Co., Ltd, Yangzhou, Jiangsu 225002, ChinaCollege of Civil Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China; Corresponding author.This study investigates the bending performance of ultra-high-performance concrete (UHPC) beams reinforced with non-prestressed steel-FRP composite bars (SFCBs) and prestressed fiber-reinforced polymer (FRP) bars. The finite element software ABAQUS is used to simulate the strain behaviors of materials, applying a real strain model for concrete and equivalent plastic strain models for reinforcements. Six beams with different concrete types and reinforcements (prestressed or non-prestressed) are simulated and analyzed. These simulations yielded results that closely aligned with the results tested. Based on the validated FE models, a parametric analysis is conducted to examine the effects of mechanical properties of concrete, mechanical property of non-prestressed reinforcement, and the reinforcement ratio of prestressed FRP bars and non-prestressed SFCB on the bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars. The results indicate that, as the concrete strength increases from C35 to UHPC140, both the ultimate load and ultimate deflection of flexural beams exhibit a gradual increase. Notably, employing UHPC100 as the matrix results in specimens achieving the highest ductility, deformation, and energy absorption. When non-prestressed FRP bars are replaced by SFCBs, the ultimate load of the beams decreases by 8 %, but energy absorption increases by 34 %. With an increase in the steel ratio of SFCBs, the ductility, deformation, and energy absorption also gradually increase. Moreover, increasing the reinforcement ratio of both prestressed FRP and non-prestressed SFCBs results in an increase in ultimate load, but a decrease in ultimate deflection, ductility, deformation, and energy absorption capacity. Additionally, by analyzing the comprehensive performance of various beams, the economic benefits of UHPC beams reinforced with non-prestressed SFCBs and prestressed FRP bars are less prominent, but they are still suitable for structures that require high strength, durability, and ductility. This research can provide valuable technical references for the analysis and design of UHPC beams reinforced with SFCBs and prestressed FRP bars.http://www.sciencedirect.com/science/article/pii/S221450952401324XBending performancePrestressed beamUltra-high-performance concreteFRP barsSteel-FRP composite bars |
| spellingShingle | Wenjie Ge Feng Zhang Subedi Sushant Ashraf Ashour Kangbao Chen Shihu Fu Linfeng Qiu Laiyong Luo Dafu Cao Bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars Case Studies in Construction Materials Bending performance Prestressed beam Ultra-high-performance concrete FRP bars Steel-FRP composite bars |
| title | Bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars |
| title_full | Bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars |
| title_fullStr | Bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars |
| title_full_unstemmed | Bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars |
| title_short | Bending performance of SFCBs reinforced UHPC beams prestressed with FRP bars |
| title_sort | bending performance of sfcbs reinforced uhpc beams prestressed with frp bars |
| topic | Bending performance Prestressed beam Ultra-high-performance concrete FRP bars Steel-FRP composite bars |
| url | http://www.sciencedirect.com/science/article/pii/S221450952401324X |
| work_keys_str_mv | AT wenjiege bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars AT fengzhang bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars AT subedisushant bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars AT ashrafashour bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars AT kangbaochen bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars AT shihufu bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars AT linfengqiu bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars AT laiyongluo bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars AT dafucao bendingperformanceofsfcbsreinforceduhpcbeamsprestressedwithfrpbars |