Experimental investigation of shear behavior in rectangular concrete-filled steel tubes
Rectangular concrete-filled steel tubes (RCFTs) are gaining traction in high-shear-demand systems, such as coupling beams, panel zones, and shear links. However, current design equations lack precision due to limited research in this area. This study presents an experimental assessment of shear perf...
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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/S2590123025010503 |
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| author | Abdullah Alghossoon Suhaib Almarashdeh Ahmad Tarawneh Ra’ed Al-Mazaidh Eman Saleh Ghassan Almasabha |
| author_facet | Abdullah Alghossoon Suhaib Almarashdeh Ahmad Tarawneh Ra’ed Al-Mazaidh Eman Saleh Ghassan Almasabha |
| author_sort | Abdullah Alghossoon |
| collection | DOAJ |
| description | Rectangular concrete-filled steel tubes (RCFTs) are gaining traction in high-shear-demand systems, such as coupling beams, panel zones, and shear links. However, current design equations lack precision due to limited research in this area. This study presents an experimental assessment of shear performance in RCFT through a series of full-scale three-point loading tests, considering the effects of shear span-to-depth ratio, width-to-thickness ratio, depth-to-width ratio, and concrete compressive strength. The results demonstrate that the concrete core in rectangular concrete-filled tubes (RCFTs) enhances load distribution on steel tubes, thereby enhancing its ultimate and residual strength as well as its overall ductility. The Failure mechanism is influenced by the shear span-to-depth ratio (a/d), with shear failure occurring at a/d < 0.5, flexural failure at a/d > 2.0, and a combined shear-flexure failure at 0.5 < a/d < 2. The strain distribution observed through Digital Image Correlation (DIC) and the test observations eliminate concerns about slippage, even at short-span ratios indicating efficient utilization of composite action in shear resistance and supporting the applicability of the truss analogy for predicting the load-carrying capacity of RCFTs in shear-critical applications. |
| format | Article |
| id | doaj-art-4aa4d419914a4d1fbfeedeeb79e77418 |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
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| series | Results in Engineering |
| spelling | doaj-art-4aa4d419914a4d1fbfeedeeb79e774182025-08-20T02:24:57ZengElsevierResults in Engineering2590-12302025-06-012610497410.1016/j.rineng.2025.104974Experimental investigation of shear behavior in rectangular concrete-filled steel tubesAbdullah Alghossoon0Suhaib Almarashdeh1Ahmad Tarawneh2Ra’ed Al-Mazaidh3Eman Saleh4Ghassan Almasabha5Assistant Professor, Civil Engineering Department, Faculty of Engineering, The Hashemite University, P.O. box 330127, Zarqa 13133, Jordan; Corresponding author.MSc. Student, Civil Engineering Department, Faculty of Engineering, The Hashemite University, P.O. box 330127, Zarqa 13133, JordanAssociate Professor, Civil Engineering Department, Faculty of Engineering, The Hashemite University, P.O. box 330127, Zarqa 13133, JordanAssistant Professor, Civil Engineering Department, Faculty of Engineering, The Hashemite University, P.O. box 330127, Zarqa 13133, JordanAssistant Professor, Civil Engineering Department, Faculty of Engineering, The Hashemite University, P.O. box 330127, Zarqa 13133, JordanAssociate Professor, Civil Engineering Department, Faculty of Engineering, The Hashemite University, P.O. box 330127, Zarqa 13133, JordanRectangular concrete-filled steel tubes (RCFTs) are gaining traction in high-shear-demand systems, such as coupling beams, panel zones, and shear links. However, current design equations lack precision due to limited research in this area. This study presents an experimental assessment of shear performance in RCFT through a series of full-scale three-point loading tests, considering the effects of shear span-to-depth ratio, width-to-thickness ratio, depth-to-width ratio, and concrete compressive strength. The results demonstrate that the concrete core in rectangular concrete-filled tubes (RCFTs) enhances load distribution on steel tubes, thereby enhancing its ultimate and residual strength as well as its overall ductility. The Failure mechanism is influenced by the shear span-to-depth ratio (a/d), with shear failure occurring at a/d < 0.5, flexural failure at a/d > 2.0, and a combined shear-flexure failure at 0.5 < a/d < 2. The strain distribution observed through Digital Image Correlation (DIC) and the test observations eliminate concerns about slippage, even at short-span ratios indicating efficient utilization of composite action in shear resistance and supporting the applicability of the truss analogy for predicting the load-carrying capacity of RCFTs in shear-critical applications.http://www.sciencedirect.com/science/article/pii/S2590123025010503Concrete-filled tubeShear behaviorExperimental testsDigital image correlation |
| spellingShingle | Abdullah Alghossoon Suhaib Almarashdeh Ahmad Tarawneh Ra’ed Al-Mazaidh Eman Saleh Ghassan Almasabha Experimental investigation of shear behavior in rectangular concrete-filled steel tubes Results in Engineering Concrete-filled tube Shear behavior Experimental tests Digital image correlation |
| title | Experimental investigation of shear behavior in rectangular concrete-filled steel tubes |
| title_full | Experimental investigation of shear behavior in rectangular concrete-filled steel tubes |
| title_fullStr | Experimental investigation of shear behavior in rectangular concrete-filled steel tubes |
| title_full_unstemmed | Experimental investigation of shear behavior in rectangular concrete-filled steel tubes |
| title_short | Experimental investigation of shear behavior in rectangular concrete-filled steel tubes |
| title_sort | experimental investigation of shear behavior in rectangular concrete filled steel tubes |
| topic | Concrete-filled tube Shear behavior Experimental tests Digital image correlation |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025010503 |
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