Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites
Due to the benefits of Steel-Concrete-Steel composites (SCS) and the improved mechanical characteristics of Engineered Cementitious Composites (ECC), utilising ECC as a core material for sandwich composite systems is expected to improve system performance. This paper investigates the ability to impr...
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Elsevier Ltd
2023
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oai:scholars.utp.edu.my:373902023-10-04T11:28:57Z http://scholars.utp.edu.my/id/eprint/37390/ Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites Gad, M.A. Nikbakht, E. Faez, M. Rusydan, A. Abu Bakar, N.B. Due to the benefits of Steel-Concrete-Steel composites (SCS) and the improved mechanical characteristics of Engineered Cementitious Composites (ECC), utilising ECC as a core material for sandwich composite systems is expected to improve system performance. This paper investigates the ability to improve the flexural behaviour of composite structures by placing an ECC core sandwiched between two steel plates, which are interconnected by bolted connectors. An ECC core can sustain more flexural stresses and provide stronger lateral confinement to the bolts. Push-out tests confirm that the shear transfer capability of a bolted connector embedded in ECC is superior to those embedded in normal concrete (NC) in achieving composite action between the steel plate and the core. Four sandwiched one-way slabs were tested to evaluate their flexural performance when subjected to static point loads. The parameters investigated included the core material and the shear connector diameter. Using the analytical models available in Eurocode 4 and the literature for steel�concrete-steel sandwiches, theoretical analysis was conducted to predict the shear connector's strength and the slab's flexural behaviour, comparing them with the experimental results. The predicted capacities show general agreement with the test output, concluding that the available models for NC sandwiches can be followed for ECC. Test evidence also shows that the inclusion of ECC as a sandwich core significantly increases the flexural capacity, as well as its post-peak ductility. © 2023 Institution of Structural Engineers Elsevier Ltd 2023 Article NonPeerReviewed Gad, M.A. and Nikbakht, E. and Faez, M. and Rusydan, A. and Abu Bakar, N.B. (2023) Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites. Structures, 55. pp. 545-556. ISSN 23520124 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85162109195&doi=10.1016%2fj.istruc.2023.06.067&partnerID=40&md5=aded5849cbf3585fbb4ace108d538beb 10.1016/j.istruc.2023.06.067 10.1016/j.istruc.2023.06.067 10.1016/j.istruc.2023.06.067 |
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Due to the benefits of Steel-Concrete-Steel composites (SCS) and the improved mechanical characteristics of Engineered Cementitious Composites (ECC), utilising ECC as a core material for sandwich composite systems is expected to improve system performance. This paper investigates the ability to improve the flexural behaviour of composite structures by placing an ECC core sandwiched between two steel plates, which are interconnected by bolted connectors. An ECC core can sustain more flexural stresses and provide stronger lateral confinement to the bolts. Push-out tests confirm that the shear transfer capability of a bolted connector embedded in ECC is superior to those embedded in normal concrete (NC) in achieving composite action between the steel plate and the core. Four sandwiched one-way slabs were tested to evaluate their flexural performance when subjected to static point loads. The parameters investigated included the core material and the shear connector diameter. Using the analytical models available in Eurocode 4 and the literature for steel�concrete-steel sandwiches, theoretical analysis was conducted to predict the shear connector's strength and the slab's flexural behaviour, comparing them with the experimental results. The predicted capacities show general agreement with the test output, concluding that the available models for NC sandwiches can be followed for ECC. Test evidence also shows that the inclusion of ECC as a sandwich core significantly increases the flexural capacity, as well as its post-peak ductility. © 2023 Institution of Structural Engineers |
| format |
Article |
| author |
Gad, M.A. Nikbakht, E. Faez, M. Rusydan, A. Abu Bakar, N.B. |
| spellingShingle |
Gad, M.A. Nikbakht, E. Faez, M. Rusydan, A. Abu Bakar, N.B. Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites |
| author_facet |
Gad, M.A. Nikbakht, E. Faez, M. Rusydan, A. Abu Bakar, N.B. |
| author_sort |
Gad, M.A. |
| title |
Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites |
| title_short |
Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites |
| title_full |
Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites |
| title_fullStr |
Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites |
| title_full_unstemmed |
Structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites |
| title_sort |
structural performance of sandwich steel-concrete-steel composites utilising engineered cementitious composites |
| publisher |
Elsevier Ltd |
| publishDate |
2023 |
| url |
http://scholars.utp.edu.my/id/eprint/37390/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85162109195&doi=10.1016%2fj.istruc.2023.06.067&partnerID=40&md5=aded5849cbf3585fbb4ace108d538beb |
| _version_ |
1779441375654182912 |
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13.211869 |