Academic Journal
Flexural Behavior of a Composite Concrete Castellated Double Channel Steel Beams Strengthening with Reactive Powder Concrete
| العنوان: | Flexural Behavior of a Composite Concrete Castellated Double Channel Steel Beams Strengthening with Reactive Powder Concrete |
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| المؤلفون: | Nihad Yaseen Abbas, Ahmad Jabbar Hussain Alshimmeri |
| المصدر: | Tikrit Journal of Engineering Sciences, Vol 31, Iss 2 (2024) |
| بيانات النشر: | Tikrit University, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Engineering (General). Civil engineering (General) |
| مصطلحات موضوعية: | Castellated, Composite beam, Deflection, Experimental test, Lacing reinforcement, Strengthening, Engineering (General). Civil engineering (General), TA1-2040 |
| الوصف: | This paper examines the experimental flexural performance of the strengthening composite concrete asymmetrical castellated steel beam of double channel shape by connecting two castellated hot rolled steel channels back-to-back using bolts along its length to obtain a built-up I-shaped form with a new total beam depth heightened by 52.4%. This research tested four specimens: the first was a reference specimen without any strengthening techniques; the second was strengthened with RPC (Reactive Powder Concrete) in the steel web region; the third was strengthened by RPC reinforced with a lacing rebar. Also, this study investigated the welding effects in web posts for the top and bottom parts of the castellated steel in the fourth specimen. All specimens were tested under simply supported conditions by applying two-point static loads on the concrete deck slab of the composite beams. The ultimate load deflection, stiffness, ductility, energy absorption capacity, and failure mode were investigated and discussed. According to the experimental results, the ultimate load capacity increased 24.01% and 48.34% in the second and third specimens, respectively, with increased stiffness, ductility, and energy absorption capacity compared with the first specimen. In contrast, the ultimate load capacity decreased by 11.02 % in the fourth specimen (strengthening without welding in web posts), reducing stiffness and ductility compared with the first specimen (reference). |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1813-162X 2312-7589 |
| Relation: | https://tj-es.com/ojs/index.php/tjes/article/view/1279; https://doaj.org/toc/1813-162X; https://doaj.org/toc/2312-7589 |
| DOI: | 10.25130/tjes.31.2.4 |
| URL الوصول: | https://doaj.org/article/a773708945f94980a1120a2319c5abe6 |
| رقم الانضمام: | edsdoj.773708945f94980a1120a2319c5abe6 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 1813162X 23127589 |
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| DOI: | 10.25130/tjes.31.2.4 |