Modeling of Reinforced Concrete Beams with and Without Opening by Using Ansys (original) (raw)
Application of Nonlinear Concrete Model for Finite Element Analysis of Reinforced Concrete Beams
The non-linear behavior of reinforced concrete (RC) beams till the ultimate failure is a complicated phenomenon due to the involvement of heterogenic material properties and cracking behavior of concrete. Behavior prediction of reinforced concrete elements till failure is usually carried out using experimental testing, and the observations are recorded only at critical locations due to restriction in cost of testing equipment and accessories. In order to avoid the destructive testing, reduction of the cost of materials and manpower, the behavior prediction of RC beams is generally carried out using numerical methods. This paper presents study on non-linear flexural behavior of reinforced concrete beams. Non-linear finite element analysis of reinforced concrete beams under flexural loading is presented in this paper. Finite element modelling of reinforced concrete beams is carried out using discrete reinforcement modelling technique. The capability of the model to capture the critical crack regions, loads and deflections for various loadings in reinforced concrete beam has been illustrated. Comparison is made between the experimental results and finite element analyses with respect to initial crack formation and the ultimate load capacity of beams. The results obtained in the present study show close agreement with those in the available literature.
Modelling and simulation of flexural behavior for reinforced concrete beams using ANSYS
Modelling and simulation of flexural behavior for reinforced concrete beams using ANSYS, 2023
Over the last twenty years, many investigators are used finite element software, to validate and compare the FE results with their experimental research. This work focused on the development of a numerical model implemented by the ANSYS 2022R2 software, to simulate the flexural behavior of the RC beam. Numerical models are tested under four-point bending. To investigate the influence of reinforcement steel ratio and compressive strength of concrete on the flexural capacity of the model. The results indicated that the Finite Element model was able to predict the flexural behavior of the experimental test beam. Furthermore, the influence of different tensile reinforcement ratios has the most effect on the flexural behaviour of the FE models at maximum loads. While the change in concrete compressive strength has affected the flexural performance of the models. This influence shows slight increases in the first crack load and maximum loads of the models. Furthermore, cracking pattern behaviour at the final stage for numerical models showed a good agreement with experimental cracks behaviour.
MODELLING AND ANALYSIS OF REINFORCED CONCRETE BEAM UNDER FLEXURE USING ANSYS
Understanding the behaviour of structural components like beam, column and wall during loading is crucial for the development of efficient and safe structures. In this article, the reinforced concrete beam has been modelled and analysed when subjected to two point loads at one third span from each support, using Finite Element Analysis tool, popularly called ANSYS software. The modelled and analysed beam having size 600 mm × 160 mm × 160 mm with 3 numbers of 12 mm diameter bars as main reinforcement, 2 numbers of 8 mm diameter as hanger bars and 8 mm diameter at 100 mm c/c as shear reinforcement. The behaviour of the analysed beam has been observed in terms of the flexural behaviour, crack pattern and displacement for various loading conditions such as 50 kN, 150kN, 250kN, 350kN, 450kN and failure load (690kN).Based on the analysis carried out on the RC beams using ANSYS, it is found that results are more sensitive to mesh size, materials properties, load increments, etc.
Crack identification in reinforced concrete beams using ANSYS software
Strength of Materials, 2010
Three-dimensional nonlinear finite element model of reinforced concrete beam has been developed in this study. The general purpose finite element package, ANSYS 8.0, is employed for the numerical analyses. Using SOLID65 solid elements, the compressive crushing of concrete is facilitated using plasticity algorithm while the concrete cracking in tension zone is accommodated by the nonlinear material model. Smeared reinforcement is used and introduced as a percentage of steel embedded in concrete. Comparison with hand calculated results is presented for the concrete beam. Convergence of analytical results is showed. The capability of the model to capture the critical crack regions, loads and deflections for various types of loadings in reinforced concrete beam has been illustrated.
Parametric Study on Reinforced Concrete Beam using ANSYS
Civil and Environmental Research, 2014
Concrete structural components such as beams, columns, walls exist in various buildings and bridges. Understanding the response of these components of structures during loading is crucial for the development of an efficient and safe structure. Recently Finite Element Analysis (FEA) is also used to analyze these structural components. In this paper, four point bending analysis is carried out using reinforced concrete beam. The results of the beam with respect to mesh density, varying depths, use of steel cushions for support and loading points, effect of shear reinforcement on flexure behaviour, impact of tension reinforcement on behaviour of the beam are analyzed and discussed. Finite element software ANSYS 13.0 is used for modeling and analysis by conducting non linear static analysis.
2022
The nonlinear behavior of reinforced concrete beams is complex due to their heterogenic properties and crack formations. Thus, a more accurate estimation through experimental testing and nonlinear finite element modeling is necessary to understand better such behavior. Experimental testing of a reinforced concrete beam subjected to monotonic loading was conducted in laboratory. The test specimen along with seven specimens from various literature were then modeled and analyzed using VecTor2 software to investigate the capability of the software in predicting the load-displacement curves and crack patterns of the specimens. The analysis results show that the finite element model used in VecTor2 software is able to predict well the load-displacement curves and crack patterns of the specimens failing in flexure and shear mechanisms.
Analysis of Three Dimensional Horizontal Reinforced Concrete Curved Beam Using Ansys
Reinforced concrete horizontally curved beams are extensively used in many fields, such as in the construction of modern highway intersections, elevated freeways, the rounded corners of buildings, circular balconies,….etc. In some of these cases, large depths are needed for curved beams in order to resist high loads or to fulfill some aesthetic purposes. The analytical analysis of such members is very complex due to the fact that those members are subjected to combined action of bending, shear and torsion. Furthermore, non homogeneous nature of the materials involved contributes to the complexity of the problem. Therefore, it becomes necessary to employ numerical analysis procedures, such as the finite element method, to satisfy the safety and the economy requirements.A horizontally curved beam, loaded transversely to its plane, is subjected to torsion in addition to bending and shear. Furthermore, in deep beam the plane section does not remain plane after bending because of high stresses and warping occurs. Therefore, special features of analysis and design for horizontally curved deep beams is necessary to include the effect of above mentioned factors. Several methods of collapse analysis , and Abul Mansur and Rangan 1981 were proposed for analysis of specific cases of reinforced concrete curved beams. However, till yet studies concerning reinforced concrete horizontally curved deep beams are rare. At present, with the application of digital computers beside the development of numerical methods, the mathematical difficulties associated with curved deep beam have been largely overcome. One of the most effective numerical methods utilized for analyzing reinforced concrete members is the finite element method. Using this method, many aspects of the phenomenological behaviour of reinforced concrete structures can be modelled rationally. These aspects include the tension-stiffening, non-linear multiaxial material properties, modelling of cracking and crushing, and many other properties related to the behaviour of reinforced concrete members under stresses. An important utilization of the finite element method is the modelling of the degradation of concrete compressive strength in the presence of transverse tensile straining as happens in members subjected dominantly to torsion or shear stresses. Therefore, the present study adopted a three dimensional non-linear finite element model to investigate the behaviour and the load carrying capacity of reinforced concrete horizontally curved deep beams.
International Journal of Civil Engineering and Technology (IJCIET) Volume 13, Issue 9, September 2022, pp. 1-13, Article ID: IJCIET_13_09_001, 2022
The failure behavior of reinforced concrete beam structural elements was modeled using computer software, ANSYS, to create the study presented in this paper. This study's goal was to ascertain how lower concrete and steel quality affected the way single reinforced concrete beam structural parts failed under tensile failure conditions. In this investigation, eight specimens of a straightforward 200x400x3000 mm with 2D16 single-reinforced beam have been modeled. A concentrated load will be applied to the beam in the middle of the beam span until it is collapsed. According to the study's findings, the quality of steel does not significantly change when the ultimate load is a flexural crack, and neither does the quality of concrete, which results in a smaller flexural capacity but a larger deflection. The crack pattern is also not significantly affected by this change. According to SNI 2847:2019, the flexural capacity of the ANSYS software analysis is comparable to the simplified calculation analysis, with a discrepancy of adequately reasonable. It is advisable for the low concrete steam rength beam with a low grade of reinforcement, whilst the higher concrete strength by using high-grade rebar.
IJMER
This study presents theoretical investigation that reinforced concrete and composite construction might be suitably combined to give a new structural material : composite reinforced concrete. To study theoretically the composite beam, non-linear three-dimensional finite elements have been used to analyze the tested beam. The 8-node brick elements in (ANSYS) are used to represent the concrete, the steel bars are modelled as discrete axial members connected with concrete elements at shared nodes assuming perfect bond between the concrete and the steel. The results obtained by finite element solution showed good agreement with experimental results. The main objective of the present investigation is to carry out a nonlinear analysis of reinforced concrete beams resting on elastic foundation. Material nonlinearities due to cracking of concrete, plastic flow, crushing of concrete and yielding of reinforcement are considered. Foundation representation is assumed linear using Winkler model. The reinforced concrete beam is modelled by using three dimensional finite elements with steel bars as smeared layers. The examples have been chosen in order to demonstrate the applicability of the modified computer program (Dynamic Analysis of Reinforced Concrete Beams on Elastic Foundations DARCEF ) by comparing the predicted behaviour with that from other experimental and analytical observations. The program modified in the present research work is capable of simulating the behaviour of reinforced concrete beams resting of Winkler foundation and subjected to different types of loading. The program solutions obtained for different reinforced concrete beams resting on elastic foundations are in good agreement with the available results. Maximum percentage difference in deflection is 15 %
FINITE ELEMENT APPROACH TO REINFORCED CONCRETE USING ANSYS
Engineers use a wide range of tools and techniques to ensure that the designs they create are safe. However, accidents happen sometimes and when they do, companies need to know if a product failed because the design was inadequate or if there s another cause, such as a user error. But they have to ensure that the product works well under a wide range of conditions, and try to avoid to the maximum failure produced by any cause. One important tool to achieve this is the finite element method. FEM is a numerical technique to find approximate solutions for boundary value problems, for partial differential equations and also for integral equations. Finite Element Analysis (FEA) represents a numerical method, which provides solution to problems that would otherwise be difficult to obtain. The numerical analysis investigations were performed with commercial software ANSYS. This software is a suite of powerful engineering simulation programs, based on finite element method, which can solve problems ranging from relatively simpler linear analyses to the most challenging nonlinear simulations. The analysis of a structure with ANSYS is performed in three stages a) Preprocessing b) Analysis solver c) Postprocessing