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Shubbar A, Alwan H, Phur EY, McLoughlin J, Al-khaykan A (2017) Studying the structural behavior of RC beams with circular openings of different sizes and locations using FE method. Saksena NH, Patel PG (2013) Effects of the circular openings on the behavior of concrete beams without additional reinforcement in opening region using FEM method. Madkour H, Ahmed K (2007) Three-dimensional modelling for reinforced concrete beams with openings based on nonlinear elastic-damage theory. Fracture Mech Concrete Struct 903–909Īl-Shaarbaf AS, Al-Bayati NA-M, Al-Kaisy DI (2007) Nonlinear finite element analysis of reinforced concrete beams with large opening under flexure. Al-Nahrain J Eng Sci 21(3):405–416Įhmann S, Schnellenbach-Held M (2001) Behavior and design of reinforced concrete beams with large openings. Jassim NQ, Jarallah HK (2018) Performance enhancement of RC beams with large web openings by using reactive powder composite. Fourth Asia-Pacific Conference on FRP in Structures, Melbourne, AustraliaĪL-Sheikh NQ (2014) Flexural behavior of RC beams with opening. Oukaili NK, Shammari AH (2013) Response of reinforced concrete beams with multiple web openings to static load. 13th World Conference on Earthquake Engineering, Vancouver, BC, Canada, Paper No.3239 J Struct Eng 117:1593–1606Īmiri JV, ALibygie MH (2004) Effect of small circular opening on the shear and flexural behavior and ultimate strength of reinforced concrete beams using normal and high strength concrete.
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Mansur MA, Lee YF, Tan KH, Lee SL (1991) Tests on R/C continuous beams with openings. Mansur MA, Tan KH, Lee SL (1985) Design method for reinforced concrete beams with large openings. In: Proceeding of 3rd Conference on Our World in Concrete and Structures, CI Premier, Singapore, pp 259–267 Salam SA (1977) Beams with openings under different stress conditions. (PhD thesis), University of Sheffield, Sheffield UK, pp 230 Prentzas EG (1986) Behavior and reinforcement of concrete beams with large rectangular apertures. Nasser KW, Acavalas A, Daniel HR (1967) Behavior and design of large openings in reinforced concrete beam. Mansur MA, Tan KH (1999) Concrete Beams with Openings: Analysis and Design.
Static loading crack#
It was recorded that the maximum crack width depended on the total area of the created openings rather than the number of these openings.īaykov VN, Seagalov EE (1991) Reinforced concrete structures, general course: textbook. The percentage of the decrease in the concrete consumption to the reduction in the load-carrying capacity for the tested beams with openings attained (140–240%). in the load-carrying capacity by (6.2–17.9%). This reduction in weight led to a reduction in the flexural stiffness and, in turn. Test results showed that the total concrete weight consumed for the tested gable beams with openings was lower than the solid gable beam by (14.9–26%). Of interest is the load-carrying capacity, cracking resistance and propagation, deformability, failure mode, and strain development that represent the behavior of reinforced concrete gable beams.
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The main variables were the number of the created openings, the total area of the created openings, and the inclination angle of the posts between openings. All beams were monotonically loaded to failure under mid-span loading. The nine beams with openings have identical reinforcement details. In the present study, an attempt has been made to experimentally investigate the flexural performance of ten simply supported reinforced concrete gable roof beams, including solid control specimen (i.e., without openings) and nine beams with web openings of different dimensions and configurations.
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