A Refined Reinforced Concrete Beam Element Including Bond-Slip Relationship

2009 ◽  
Author(s):  
R.S. Oliveira ◽  
M.R.S. Correa ◽  
M.A. Ramalho
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Beam Element ◽  
Bond Slip

Modeling bond-slip deformations in reinforced concrete beam-column joints

2000 ◽  
Vol 27 (3) ◽  
pp. 490-505 ◽  
Author(s):  
Mostafa Elmorsi ◽  
M Reza Kianoush ◽  
W K Tso
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Concrete Beam ◽  
Element Model ◽  
Reinforced Concrete Beam ◽  
Experimental Results ◽  
Reinforcing Bars ◽  
Bond Slip ◽  
Joint Element ◽  
Column Joint

A new finite element model for reinforced concrete beam-column joints is proposed. The model considers the effects of bond-slip and shear deformations in the joint panel region. The problems associated with modeling bond-slip of anchored reinforcing bars are discussed. The proposed bond-slip model is examined at the element level by comparing its predictions with other analytical and experimental results. The ability of the model to simulate bond deterioration and eventual pullout of anchored reinforcing bars under severe cyclic excitation is demonstrated. This model is incorporated into the global beam-column joint element. Further comparisons are made between the predictions of the proposed beam-column joint model and other analytical and experimental results under reversed cyclic loading to show the validity of the model to describe the bond-slip behavior of the joints.Key words: bond, bond-slip, finite element, beam-column, reinforced concrete, cyclic.

Experimental evaluation of seismic response for reinforced concrete beam–column knee joints with irregular geometries

2016 ◽  
Vol 19 (12) ◽  
pp. 1889-1901
Author(s):  
Min Wang ◽  
Dichuan Zhang ◽  
Jainping Fu
Keyword(s):  
Reinforced Concrete ◽  
Knee Joint ◽  
Large Scale ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Knee Joints ◽  
Seismic Capacity ◽  
Bond Slip ◽  
Irregular Geometries ◽  
Irregular Geometry

Regular reinforced concrete beam–column knee joints are typically framed by beams and columns with similar heights. However, complexities in modern architecture layouts may result in irregular geometries for the knee joint. The irregular geometry refers to significant differences in the height for the beam and the column framing into the joint. For example, the height of the beam is considerably larger than that of the column, and vice versa. Seismic performance and behavior for the regular knee joint have been well examined through previous experimental research. However, the knee joint with irregular geometry (termed here as irregular knee joint) may have different seismic behaviors compared to the regular knee joint because the irregular geometry can produce different demands, stiffness, strength, and reinforcing bond conditions. Therefore, this article evaluates seismic behavior of the irregular knee joint including failure mode, strength and stiffness degradation, deformation capacity, bond-slip of reinforcement, and energy dissipation capacity through four large-scale static cyclic tests. The test results show that in general the irregular knee joint designed to the current code has low seismic capacity due to poor bond conditions of the reinforcement inside the joint.

scholarly journals Scrutiny of a RCC Beam by Ansys with Non-Identical Collapsed Mechanisms under Assorted Loading Conditions

2019 ◽  
Vol 9 (1) ◽  
pp. 6577-6585
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Experimental Work ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Beam Element ◽  
Loading Conditions ◽  
Data Source ◽  
Numerical Examination

Scrutiny of reinforced concrete beam by Ansys with non-identical collapsed mechanisms under assorted conditions. As per is code: IS: 456-2000. to evaluation for finite element examination a beam element various kinds of authors are done their research by using software’s like Ansys, abacus, civil FEM, mat-lab from this one they are studied based on various types of work flows regarding fracture proliferation patterns, in this journal i would like to do numerical examination by FEA software as well as experimental work repercussion analogy from data source. Potential of work is based on the design conditions of design of singly reinforced beam doubly reinforced concrete beam.

Analysis of Reinforced Concrete Column Using a Beam-Column Element with a Meshed Section

2011 ◽  
Vol 255-260 ◽  
pp. 1954-1958
Author(s):  
Ling Yuan Zhou ◽  
Qiao Li
Keyword(s):  
Reinforced Concrete ◽  
Stiffness Matrix ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Beam Element ◽  
Reinforced Concrete Column ◽  
Flexibility Matrix ◽  
Stiffness Matrices ◽  
Column Element ◽  
Interpolation Functions

A efficient 3D reinforced-concrete beam element based on the flexibility method and distributed nonlinearity theory is proposed, The sections of the beam element are divided into the plane isoparametric elements in this formulation, the section stiffness matrices are calculated through the integration of stress-strain relations of concrete including reinforcing steel effect in the section. The flexibility matrices of the sections are calculated by inverting the stiffness matrices, and the element flexibility matrix is formed through the force interpolation functions. The element stiffness matrix is evaluated through the element flexibility matrix. Finally, the buckling behaviors of a reinforced concrete beam under various eccentric loads are analyzed with the proposed formulation to illustrate its accuracy and computational efficiency.

Developing Reinforced Concrete Elastic-Plastic Beam Element Model

2006 ◽  
Vol 306-308 ◽  
pp. 535-540 ◽  
Author(s):  
Li Zhang ◽  
Zhan Li Liu ◽  
Zhuo Zhuang ◽  
T. Kanayama
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Conceptual Models ◽  
Element Model ◽  
Reinforced Concrete Beam ◽  
Beam Element ◽  
Response Analysis ◽  
Linear Section ◽  
Rc Structures ◽  
Elastic Plastic

The response analysis of reinforced concrete (RC) structures subjected to strong earthquake motions require realistic conceptual models. The special models, such as Clough and Takeda, which describe the non-linear section characteristic of reinforced concrete beam and column. In the earthquake motions, the deforming is sensitive to the response of structures intensively. The traditional lumped plastic model inevitably induces inaccuracy. Hence, meshing the members or distributing stiffness along the whole member is employed to simulate the seismic response of the structures. In this paper, Takeda elastic-plastic beam element model has been developed, which is based on general FEM code ABAQUS in order to simulate the response of RC. The influence is discussed due to the different lengths of plastic zone and element sizes.

scholarly journals Thermal Behaviour of Reinforced Concrete Beam with Static loading Condition

2019 ◽  
Vol 8 (3) ◽  
pp. 1484-1488
Keyword(s):  
Reinforced Concrete ◽  
Temperature Distribution ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Beam Element ◽  
Maximum Temperature ◽  
Rc Beam ◽  
Principal Stresses ◽  
Steady State Condition ◽  
Finite Element Software

This work examines the results on the Reinforced concrete beam element under different temperature scenario. The most contagious or maximum temperature distribution in the RC member will be presumed. In Reinforced concrete beam the flexural failure is vigorously reached by the temperature, and also steel reinforcement has experienced. The present work has studied the two-dimensional static analysis in the ABAQUS finite element software when the temperature remains in the steady-state condition during incremental loading applied in the member. The numerical results show that the temperature distribution in the beam element,load versus deflection curve ,ultimate load, Maximum principal stresses are done in the RC beam under different temperature. There fore the reinforced concrete 3D model is usefull in analytical tool for prediction of the behaviour of RC beam under temperature.

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