Behavior and strength of reinforced concrete flanged deep beams with web openings

El-Kareim, Ata; Arafa, Ahmed; Hassanin, Amal; Atef, Mohamed; Saber, Ahmed

doi:10.1016/j.istruc.2020.06.003

Cited by 18 publications

(9 citation statements)

References 18 publications

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“…shear governs the behaviour of deep beams [11]. For example, shear cracks usually appear in the web of a deep beam because of high inclined tensile stresses in this zone, which cause the beam to fail before reaching its moment capacity [12][13][14][15]. An effective method to increase shear resistance of a structure element is to use steel fibres.…”

Section: Introductionmentioning

confidence: 99%

Shear resistant capacity of steel fibres reinforced concrete deep beams: An experimental investigation and a new prediction model

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Shear resistant capacity of steel fibres reinforced concrete deep beams: An experimental investigation and a new prediction model

et al. 2021

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“…The ultimate deflections were 1.64, 2.11, 1.63 and 5.4 mm for beams without fibres; B C1 , B C2 , B C3 and B C4 . Beam B C2 had high resistance to cracking despite having a similar opening area as beams B C1 and B C3 [ [53] , [54] , [55] , [56] ]. Beams without fibres had curves with steep slopes, indicating low levels of toughness.…”

Section: Resultsmentioning

confidence: 99%

Simplified shear equation of deep concrete beam considering orientation effect of opening and mechanical properties of fibre-concrete interface

Augustino¹,

Kanali²,

Onchiri³

et al. 2023

Heliyon

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“…El-kareim et al [1] studied the strength and behavior of deep beams with openings. They reported experimental tests on flanged deep beams with different shear spans and openings.…”

Section: Introductionmentioning

confidence: 99%

“…They made a finite element model to predict the experimental behavior. El-kareim et al [1] calculated the deep beams' capacities using design equations. The finite element model was able to predict the experimental behavior.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of reinforced concrete deep beam with large opening

Ismail

Issa

Elbadry

2021

Beni-Suef Univ J Basic Appl Sci

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Background A series of nonlinear finite element (FE) analyses was performed to evaluate the different design approaches available in the literature for design of reinforced concrete deep beam with large opening. Three finite element models were developed and analyzed using the computer software ATENA. The three FE models of the deep beams were made for details based on three different design approaches: (Kong, F.K. and Sharp, G.R., Magazine of Concrete Res_30:89-95, 1978), (Mansur, M. A., Design of reinforced concrete beams with web openings, 2006), and Strut and Tie method (STM) as per ACI 318-14 (ACI318 Committee, Building Code Requirements for Structural Concrete (ACI318-14), 2014). Results from the FE analyses were compared with the three approaches to evaluate the effect of different reinforcement details on the structural behavior of transfer deep beam with large opening. Results The service load deflection is the same for the three models. The stiffnesses of the designs of (Mansur, M. A., Design of reinforced concrete beams with web openings, 2006) and STM reduce at a load higher than the ultimate design load while the (Kong, F.K. and Sharp, G.R., Magazine of Concrete Res_30:89-95, 1978) reduces stiffness at a load close to the ultimate design load. The deep beam designed according to (Mansur, M. A., Design of reinforced concrete beams with web openings, 2006) model starts cracking at load higher than the beam designed according to (Kong, F.K. and Sharp, G.R., Magazine of Concrete Res_30:89-95, 1978) method. The deep beam detailed according to (Kong, F.K. and Sharp, G.R., Magazine of Concrete Res_30:89-95, 1978) and (Mansur, M. A., Design of reinforced concrete beams with web openings, 2006) failed due to extensive shear cracks. The specimen detailed according to STM restores its capacity after initial failure. The three models satisfy the deflection limit. Conclusion It is found that the three design approaches give sufficient ultimate load capacity. The amount of reinforcement given by both (Mansur, M. A., Design of reinforced concrete beams with web openings, 2006) and (Kong, F.K. and Sharp, G.R., Magazine of Concrete Res_30:89-95, 1978) is the same. The reinforcement used by the STM method is higher than the other two methods. Additional reinforcement is needed to limit the crack widths. (Mansur, M. A., Design of reinforced concrete beams with web openings, (2006)) method gives lesser steel reinforcement requirement and higher failure load compared to the other two methods.

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Behavior and strength of reinforced concrete flanged deep beams with web openings

Cited by 18 publications

References 18 publications

Shear resistant capacity of steel fibres reinforced concrete deep beams: An experimental investigation and a new prediction model

Shear resistant capacity of steel fibres reinforced concrete deep beams: An experimental investigation and a new prediction model

Simplified shear equation of deep concrete beam considering orientation effect of opening and mechanical properties of fibre-concrete interface

Finite element analysis of reinforced concrete deep beam with large opening

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