Impact of column axial load level of the seismic behavior of concrete-filled UHPC tubular column-to-footing connections reinforced with different spiral stirrup spacing
The behavior of the ultra-high-performance concrete (UHPC) filled tubular columns (CFUT) was investigated in this study using the method of nonlinear finite element analysis (NLFEA). The CFUT jacketed system is utilized in many real-world engineering applications, such as bridge piers and high-rise...
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| Language: | English |
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Elsevier
2025-06-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S259012302501028X |
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| author | Rajai Z. Al-Rousan Bara’a R. Alnemrawi |
| author_facet | Rajai Z. Al-Rousan Bara’a R. Alnemrawi |
| author_sort | Rajai Z. Al-Rousan |
| collection | DOAJ |
| description | The behavior of the ultra-high-performance concrete (UHPC) filled tubular columns (CFUT) was investigated in this study using the method of nonlinear finite element analysis (NLFEA). The CFUT jacketed system is utilized in many real-world engineering applications, such as bridge piers and high-rise core columns. The seismic action performance was addressed using the combined effect of the axial and lateral loadings with enhanced column confinement provided by the presence of spiral stirrups. Different column axial levels (0 %, 25 %, 50 %, and 75 %) and spiral stirrup spacing (25 mm, 50 mm, 75 mm,100 mm) were studied using thirty-two models. Results were presented in terms of the pulling and pushing capacities, failure modes, displacement, stress distribution, load-displacement envelopes and hysteretic loops, stiffness, and energy capacities degradation. The obtained results revealed that the composite action between the CFUT column parts (UHPC tube and concrete core) efficiently contributes to the structural system capacity. The lateral stiffness and the load-carrying capacity were significantly improved by the utilization of the RC column with the UHPC jackets. In addition, deformations were also improved along with reduced drift ratios due to the role of UHPC in bridging the resulting cracks. Finally, the reduction in the spiral stirrup spacing enhances the overall cyclic performance of the structural system. |
| format | Article |
| id | doaj-art-fc6f659ed4cd42e988865e052d239b07 |
| institution | DOAJ |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-fc6f659ed4cd42e988865e052d239b072025-08-20T03:18:15ZengElsevierResults in Engineering2590-12302025-06-012610495210.1016/j.rineng.2025.104952Impact of column axial load level of the seismic behavior of concrete-filled UHPC tubular column-to-footing connections reinforced with different spiral stirrup spacingRajai Z. Al-Rousan0Bara’a R. Alnemrawi1Department of Civil Engineering, Engineering, Jordan university of science and technology, P.O. Box 3030, Irbid 22110, JordanCorresponding author.; Department of Civil Engineering, Engineering, Jordan university of science and technology, P.O. Box 3030, Irbid 22110, JordanThe behavior of the ultra-high-performance concrete (UHPC) filled tubular columns (CFUT) was investigated in this study using the method of nonlinear finite element analysis (NLFEA). The CFUT jacketed system is utilized in many real-world engineering applications, such as bridge piers and high-rise core columns. The seismic action performance was addressed using the combined effect of the axial and lateral loadings with enhanced column confinement provided by the presence of spiral stirrups. Different column axial levels (0 %, 25 %, 50 %, and 75 %) and spiral stirrup spacing (25 mm, 50 mm, 75 mm,100 mm) were studied using thirty-two models. Results were presented in terms of the pulling and pushing capacities, failure modes, displacement, stress distribution, load-displacement envelopes and hysteretic loops, stiffness, and energy capacities degradation. The obtained results revealed that the composite action between the CFUT column parts (UHPC tube and concrete core) efficiently contributes to the structural system capacity. The lateral stiffness and the load-carrying capacity were significantly improved by the utilization of the RC column with the UHPC jackets. In addition, deformations were also improved along with reduced drift ratios due to the role of UHPC in bridging the resulting cracks. Finally, the reduction in the spiral stirrup spacing enhances the overall cyclic performance of the structural system.http://www.sciencedirect.com/science/article/pii/S259012302501028XUHPCCFUTNLFEASeismic behaviorSpiral stirrup spacingColumn axial load level |
| spellingShingle | Rajai Z. Al-Rousan Bara’a R. Alnemrawi Impact of column axial load level of the seismic behavior of concrete-filled UHPC tubular column-to-footing connections reinforced with different spiral stirrup spacing Results in Engineering UHPC CFUT NLFEA Seismic behavior Spiral stirrup spacing Column axial load level |
| title | Impact of column axial load level of the seismic behavior of concrete-filled UHPC tubular column-to-footing connections reinforced with different spiral stirrup spacing |
| title_full | Impact of column axial load level of the seismic behavior of concrete-filled UHPC tubular column-to-footing connections reinforced with different spiral stirrup spacing |
| title_fullStr | Impact of column axial load level of the seismic behavior of concrete-filled UHPC tubular column-to-footing connections reinforced with different spiral stirrup spacing |
| title_full_unstemmed | Impact of column axial load level of the seismic behavior of concrete-filled UHPC tubular column-to-footing connections reinforced with different spiral stirrup spacing |
| title_short | Impact of column axial load level of the seismic behavior of concrete-filled UHPC tubular column-to-footing connections reinforced with different spiral stirrup spacing |
| title_sort | impact of column axial load level of the seismic behavior of concrete filled uhpc tubular column to footing connections reinforced with different spiral stirrup spacing |
| topic | UHPC CFUT NLFEA Seismic behavior Spiral stirrup spacing Column axial load level |
| url | http://www.sciencedirect.com/science/article/pii/S259012302501028X |
| work_keys_str_mv | AT rajaizalrousan impactofcolumnaxialloadleveloftheseismicbehaviorofconcretefilleduhpctubularcolumntofootingconnectionsreinforcedwithdifferentspiralstirrupspacing AT baraaralnemrawi impactofcolumnaxialloadleveloftheseismicbehaviorofconcretefilleduhpctubularcolumntofootingconnectionsreinforcedwithdifferentspiralstirrupspacing |