Flexural Behavior of a Composite Concrete Castellated Double Channel Steel Beams Strengthening with Reactive Powder Concrete
Article Sidebar
Main Article Content
Abstract
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).
Metrics
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
THIS IS AN OPEN ACCESS ARTICLE UNDER THE CC BY LICENSE http://creativecommons.org/licenses/by/4.0/
Plaudit
References
Fares S, Coulson J, Dinehart D. Castellated and Cellular Beam Design. 14th ed., USA: American Institute of Steel Construction; 2016.
Knowles PR, 5950 BS. Castellated Beams. Proceedings of the Institution of Civil Engineers 1991; 90(3):521-536. DOI: https://doi.org/10.1680/iicep.1991.14728
Larnach J, Park R. The Behavior under Load of Six Castellated Composite T-Beams. Civil Engineering and Public Works Review 1964; 59(692):339-343.
Kumar VS, Nandhakumar P, Indrajit M, Swathika P. Research on Structural Behavior of Concrete Encased Steel Castellated Beam for Different Sections. International Journal of Engineering and Advanced Technology 2019; 8(6): 61-64. DOI: https://doi.org/10.35940/ijeat.F1012.0886S19
Hadeed SM, Alshimmeri AJH. Comparative Study of Structural Behaviour for Rolled and Castellated Steel Beams with Different Strengthening Techniques. Civil Engineering Journal 2019; 5(6):1384-1394. DOI: https://doi.org/10.28991/cej-2019-03091339
Ridha MM, Sarsam KF, Al-Shaarbaf IA. Experimental Study and Shear Strength Prediction for Reactive Powder Concrete Beams. Case Studies in Construction Materials 2018;8:434-446. DOI: https://doi.org/10.1016/j.cscm.2018.03.002
Qasim OA. Comparative Study between the Cost of Normal Concrete and Reactive Powder Concrete. IOP Conference Series: Materials Science and Engineering 2019; 518: 022082, (1-15). DOI: https://doi.org/10.1088/1757-899X/518/2/022082
Ali AH, Ibrahim AK. Mechanical Properties of Reactive Powder Concrete (RPC) Exposed to Acidic Solutions. Tikrit Journal of Engineering Sciences 2014; 21(3):55-62. DOI: https://doi.org/10.25130/tjes.21.3.07
Ammar HA, Alshimmeri AJH. A Comparison Study between Asymmetrical Castellated Steel Beams Encased by Reactive Powder Concrete with Laced Reinforcement. Key Engineering Materials 2021; 895:77-87. DOI: https://doi.org/10.4028/www.scientific.net/KEM.895.77
Khaleel AI, AL-Shamaa MF. Experimental Investigation on the Structural Behavior of Double Channel Castellated Steel Beams. E3S Web of Conferences 2021; 318: 03009, (). DOI: https://doi.org/10.1051/e3sconf/202131803009
Al-Tameemi SK, Alshimmeri AJ. Behavior of Asymmetrical Castellated Composite Girders by Gap in Steel Web. AIP Conference Proceedings 2023; 2414(1): 060002, (1-11) . DOI: https://doi.org/10.1063/5.0116809
AISC AIoSC. Steel Construction Manual. 15th Edition ed. Chicago, Illinois; 2017.
Al-Thabhawee HW. Experimantal Study of Effect of Hexagonal Holes Dimensions on Ultimate Strength of Castellated Steel Beam. Kufa Journal of Engineering 2017; 8(1): 97-107. DOI: https://doi.org/10.30572/2018/KJE/811186
ASTM A. A615 Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement. ASTM International, West Conshohocken, PA 2016.
Abbas AN. Experimental Study on Reactive Powder and Normal Concrete Rectangular Beams under Different Loading Rate. International Journal of Engineering and Advanced Technology Structures 2014; 2(2): 1-10.
Iraqi Standard Specification No.45. for Aggregate from Natural Sources for Concrete and Building Construction. Central Organization for Standardization and Quality Control, Baghdad, Iraq, P11 1984.
Ahmad S, Masri A, Abou Saleh Z. Analytical and Experimental Investigation on the Flexural Behavior of Partially Encased Composite Beams. Alexandria Engineering Journal 2018; 57(3):1693-1712. DOI: https://doi.org/10.1016/j.aej.2017.03.035
Hallawi AF, Al-Ahmed AHA. Enhancing the Behavior of One-Way Reinforced Concrete Slabs by Using Laced Reinforcement. Civil Engineering Journal 2019; 5(3):718-728. DOI: https://doi.org/10.28991/cej-2019-03091282