Strength and Behavior of Reinforced Concrete Squat Shear Walls with Openings under Cyclic Loading

2021 ◽  
Vol 118 (5) ◽  
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Shear Walls ◽  
And Behavior

Cyclic loading testing of repaired SMA and steel reinforced concrete shear walls

2018 ◽  
Vol 168 ◽  
pp. 128-141 ◽  
Author(s):  
Leonardo Cortés-Puentes ◽  
Mohammed Zaidi ◽  
Dan Palermo ◽  
Elena Dragomirescu
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Shear Walls ◽  
Steel Reinforced Concrete

Equivalent Ductility Damage Model for Seismic Response of RC Structures: Test and Verification

2010 ◽  
Vol 163-167 ◽  
pp. 1714-1718
Author(s):  
Guang Ming Chang ◽  
Guo Hua Xing ◽  
Bo Quan Liu
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Damage Model ◽  
Damage Index ◽  
Shear Walls ◽  
Rc Structures ◽  
Index Model ◽  
Concrete Members ◽  
Ultimate Failure ◽  
Total Structure

. It is possible to quantify the damage to reinforced concrete members under cyclic loading through a nondimensional parameter known as a “damage index”. The damage index can be either a global damage index for the total structure, or a local damage index for the element level. In this paper, a new damage model termed “equivalent ductility damage model” has been suggested for evaluation of the damage index, which is consistent with accepted definitions of ductility. Substructure method was applied to verify the suggested new damage model. A total of 3 identical half-scale reinforced concrete columns were tested under variable amplitude cyclic loading up to the ultimate failure of the specimens. The imposed displacement histories were obtained from analytical simulations of the model column subjected to a series of earthquakes. Test observations indicate that the proposed model predicts 100 percent damage at the ultimate failure state of the element. The proposed damage index model can be extended to other structural elements, such as shear walls, beams, beam-column junctions, etc.

scholarly journals Simplified nonlinear analysis of reinforced concrete coupling beams subjected to cyclic loading

2020 ◽  
Vol 19 (3) ◽  
pp. 224-232
Author(s):  
Rafael Alves de Souza ◽  
◽  
Sergio F. Brena ◽  
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Nonlinear Analysis ◽  
Failure Modes ◽  
Tall Buildings ◽  
Shear Walls ◽  
Monotonic Loading ◽  
Good Precision ◽  
Coupling Beams ◽  
Failure Loads

Reinforced concrete shear walls connected by coupling beams form an efficient structural system to resist earthquake and wind loads in tall buildings. However, the analysis of the effects caused by cyclic loading in this kind of system are not so straightforward. In the present paper, simplified nonlinear analysis using monotonic loading are used in order to obtain the behavior of tested coupling beams subjected to cyclic loading. Numerical results have shown that numerical monotonic loading is able to predict with good precision the yielding and the failure loads of the tested coupling beams subjected to cyclic loading. Both the cracking patterns and the predicted failure modes also followed the experimental behavior, ensuring that monotonic loading may be applied to have a first insight concerning cyclic loading.

Numerical Analysis of RC Shear Walls under Cyclic Loading by PERFORM-3D

2011 ◽  
Vol 250-253 ◽  
pp. 2253-2257 ◽  
Author(s):  
Huan Jun Jiang ◽  
Lao Er Liu
Keyword(s):  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Cyclic Loading ◽  
Constitutive Models ◽  
Nonlinear Behavior ◽  
Shear Walls ◽  
Shear Wall ◽  
Engineering Practice ◽  
Macroscopic Models ◽  
Wall Element

For engineering practice purpose, the macroscopic model capable of simulating the main characteristics of nonlinear behavior is desirable to reduce computational efforts in nonlinear structural analysis. Several different types of macroscopic models for shear walls have been developed. The shear wall element used in the commercial program PERFORM-3D is one types of macroscopic models for reinforced concrete shear walls. The application of PERFORM-3D in the nonlinear static analysis of reinforced concrete shear walls is introduced in this study. The selection of constitutive models and the determination of related parameters of the constituent material are presented in detail. The applicability of the shear wall element is verified by numerical simulation on three reinforced concrete shear wall specimens under cyclic loading. The comparison between the numerical analysis and test results leads to the conclusion that the shear wall element with appropriate constitutive models can capture the nonlinear behavior of reinforced concrete shear wall well and be conveniently applied in engineering practice.

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