Prediction of the behavior of reinforced concrete deep beams with web openings using the finite element method

Mohamed, Ashraf Ragab; Shoukry, Mohie S.; Saeed, Janet M.

doi:10.1016/j.aej.2014.03.001

Cited by 63 publications

(29 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 5 shows the results of other beams of Group A, where the STM approach gives a mean value of 0.785. Table 6 shows the results of all beams of Group B [11]. The STM gives a mean value of 0.732 of the experimental ultimate load.…”

Section: Group a [10]: Nsc And Hsc Simple And Continuous Deep Beamsmentioning

confidence: 99%

“…Also, to examine the accuracy of the nonlinear FEA, the obtained results are compared with the measured values of the tested beams in Group B [11], Table 10, with a mean value 0.98 of V u,FEM /V u,Exp . Figure 10 shows the output of ANSYS for beam NW7-0.3/4.…”

Section: Group B: Simple Beams With Rectangular Openingsmentioning

confidence: 99%

“…To illustrate how to model and analyze RC deep beams with openings using a STM method, two tested groups A [10] and B [11] of simple deep beams with openings are examined. The studied parameters are as follows: (1) strengths of rebar and concrete, (2) specimen dimensions, (3) loading, (4) shear span-to-depth ratio, and (5) the amount of main and web reinforcement.…”

Section: Deep Beams Using Stm Approach: Verification Examplesmentioning

confidence: 99%

See 2 more Smart Citations

Behavior of RC Shallow and Deep Beams with Openings Via the Strut-and-Tie Model Method and Nonlinear Finite Element

et al. 2015

View full text Add to dashboard Cite

The strut-and-tie model (STM) has been widely applied for the design of reinforced concrete (RC), members particularly discontinuity regions. In this paper, on the basis of available experimental results of crack patterns, failure modes, and trajectories of internal stresses from elastic finite element analysis (FEA), STMs have been suggested for many shallow and deep beams with openings, which had been tested experimentally. In addition, for comparison purposes, 3-D nonlinear FEA using ANSYS-12 package has been performed for selected beams. Some of the important factors affecting the behavior of RC beams, namely concrete compressive and tensile strength, span-to-depth ratio, shear span-to-depth ratio, physical and mechanical properties of horizontal, vertical web reinforcement and main steel, loading position, opening dimensions, and location, are investigated via a parametric study with the aid of 3-D nonlinear FEA. With such analysis, results of crack pattern, deflection, failure mode, and strain and stress distributions, which cannot be determined using the STM, are obtained. A comparison of the FEA with test results and proposed STMs has been carried out. The present study reveals the reliability of the STM method in obtaining a reasonable lower bound estimate of the load carrying capacity of RC ordinary/deep beams with openings. In addition, the 3-D nonlinear FEA of simple and continuous NSC and HSC ordinary/deep beams with/without openings yields accurate predictions of both the ultimate load and the complete response.

show abstract

Section: Group a [10]: Nsc And Hsc Simple And Continuous Deep Beamsmentioning

confidence: 99%

Section: Group B: Simple Beams With Rectangular Openingsmentioning

confidence: 99%

Section: Deep Beams Using Stm Approach: Verification Examplesmentioning

confidence: 99%

See 1 more Smart Citation

Behavior of RC Shallow and Deep Beams with Openings Via the Strut-and-Tie Model Method and Nonlinear Finite Element

et al. 2015

View full text Add to dashboard Cite

show abstract

“…1) [7,[10][11][12]14,15,[17][18][19][20][21][22][23]25,[27][28][29][30][31][32]. Some elements of notation system is presented at Fig.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

About solution of multipoint boundary problem of static analysis of deep beam with the use of combined application of finite element method and discrete-continual finite element method. part 1: formulation of the problem and general principles of approximation

Lyakhovich

Negrozov

2017

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. This paper is devoted to formulation and general principles of approximation of multipoint boundary problem of static analysis of deep beam with the use of combined application of finite element method (FEM) discrete-continual finite element method (DCFEM). The field of application of DCFEM comprises structures with regular physical and geometrical parameters in some dimension ("basic" dimension). DCFEM presupposes finite element approximation for non-basic dimension while in the basic dimension problem remains continual. DCFEM is based on analytical solutions of resulting multipoint boundary problems for systems of ordinary differential equations with piecewise-constant coefficients.

show abstract

“…Salam (1977) investigated a number of beams with rectangular cross section under two symmetrical point loads. Mohamed et al (2014) predicted the behavior of reinforced concrete deep beams containing web openings by means of finite element method. Siao and Yap (1990) stated that the beams fail prematurely by sudden formation of a diagonal crack in the compression chord when no additional reinforcement is provided in the members near the opening (chord members).…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of reinforced concrete beams containing bending and shear opening and strengthened with FRP sheet

Hosseini¹,

Amiri²,

Beiranvand³

2016

10.5267/j.esm

View full text Add to dashboard Cite

Various methods are available to reinforce concrete members and structures. Wrapping the concrete beams with composite sheets is one of the suggested methods for increasing the load bearing capacity of concrete beams and specially those containing opening. In this paper, the influence of using two composite sheets reinforced with carbon (CFRP) and glass (GFRP) is studied on increasing the strength of concrete beams having opening. A number of concrete beams with and without openings were modeled in ANSYS and using the nonlinear analyses, the initial cracking load, ultimate failure load, cracking pattern and deflection were determined numerically for each beam. Different wrapping schemes were examined for increasing the load bearing capacity of the opening section and it was concluded that wrapping from both inside and exterior of opening with the mentioned composite patches provide the most enhancement in the opening zone. Also the CFRP patch showed better performance in comparison with the GFRP wrapping.

show abstract

Prediction of the behavior of reinforced concrete deep beams with web openings using the finite element method

Cited by 63 publications

References 4 publications

Behavior of RC Shallow and Deep Beams with Openings Via the Strut-and-Tie Model Method and Nonlinear Finite Element

Behavior of RC Shallow and Deep Beams with Openings Via the Strut-and-Tie Model Method and Nonlinear Finite Element

About solution of multipoint boundary problem of static analysis of deep beam with the use of combined application of finite element method and discrete-continual finite element method. part 1: formulation of the problem and general principles of approximation

Numerical analysis of reinforced concrete beams containing bending and shear opening and strengthened with FRP sheet

Contact Info

Product

Resources

About