Practical Nonlinear Modeling of Reinforced Concrete Structural Walls

Kolozvari, Kristijan; Wallace, John W.

doi:10.1061/(asce)st.1943-541x.0001492

Cited by 36 publications

(12 citation statements)

References 11 publications

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“…In the developed numerical model, the concrete layer and shear layer were considered in order to simulate the axial‐bending behavior and shear behavior of the tested wall, respectively . The general FE model of the wall was constructed by connecting the concrete and shear layers in parallel …”

Section: Numerical Modelingmentioning

confidence: 99%

“…31 The general FE model of the wall was constructed by connecting the concrete and shear layers in parallel. 32 To achieve an acceptable level of accuracy, a nonuniform FE mesh was employed ( Figure 4). The different properties of elements' layers and the lack of interaction between tendons and concrete were other reasons for irregular meshing.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A novel method for quantifying damage to cast‐in‐place self‐centering concrete stepping walls

Jafari

Ghasemi

Bengar

et al. 2018

Structural Concrete

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In this paper, a novel method is presented for quantifying damage to cast‐in‐place self‐centering concrete stepping walls via a proposed numerical model. By conducting a parametric study, an equation is derived to estimate the plastic hinge length of the wall as a function of the axial prestress ratio. To estimate the state of damage in various parts of the wall, including boundary element, wall‐footing interface, and plastic hinge zone, different ratios were introduced. In order to calculate the ratios, damage was calculated at various levels of drift for different values of the prestress ratio. The estimated damage was then compared with the expected damage for the basic performance objective to calibrate the ratios. According to the results, the proposed method can provide insight and valuable information about the probable state of damage. Moreover, to satisfy the basic performance objective requirements, the value of prestress ratio should be limited to 0.125.

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Section: Numerical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A novel method for quantifying damage to cast‐in‐place self‐centering concrete stepping walls

Jafari

Ghasemi

Bengar

et al. 2018

Structural Concrete

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show abstract

“…However, shear action cannot be considered for vertical springs, and the contribution of RC material to shear force is neglected, so its use in simulation may lead to computational deviation. Eventually, a multivertical-line element theory considering bending-shear coupling was developed [18], which is based on the fixed-strutangle-model (FSAM) and where a novel RC element is used to replace the vertical fiber element. Bending-shear action and material constitution can directly be considered for a single RC element in the model, and separate stress analysis is possible.…”

Section: Sfi-mvlem Element Model For Shear Wallsmentioning

confidence: 99%

The Performance of Resistance Progressive Collapse Analysis for High-Rise Frame-Shear Structure Based on OpenSees

Zhang

2017

Shock and Vibration

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A finite element model (FEM) of frame-shear structure was constructed using OpenSees program based on the nonlinear flexibility theory and multi-vertical-line theory that considered bending-shear coupling, and its progressive collapse resistance under abnormal conditions was analyzed. Flexibility-based method for modeling shear wall finite element and multi-verticalline element (SFI-MVLEM) was proposed. Method of deleting failure component elements was presented, as well as the model solving algorithm. The FEM was validated by the completed structure test. On these bases, 3 groups of typical frame-shear structure systems were designed to perform nonlinear dynamic collapse analysis under different initial failure conditions, in order to study the impact of the number of floors and earthquake resistant design on the progressive collapse resistance of frame-shear structures. Analysis results showed that, at initial failure of frame column, the residual shear wall element can well complete the internal force redistribution of structure to provide alternative force transmission path, thereby forming antiprogressive collapse force. In the case of initial failure of shear wall, C-shaped shear wall can form alternative path to diminish the vertical deformation of frame-shear structures. Final comparison shows that the structural seismic design can effectively improve their anticollapse performance.

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“…The slender walls (where the bending deformation is of concern) resist the loads due to cantilever action. In general, the SW system can be classified as reinforced concrete shear walls (RCSW) [2][3][4], steel plate shear wall (SPSW) [5,6], masonry shear walls [7][8][9], composite shear walls, and timber plate shear walls [10,11]. Although the RCSWs have longer history than SPSWs in structural engineering (due to their remarkable strength and lateral stiffness), the application of SPSWs has also increased in the past few decades [12,13].…”

Section: Introductionmentioning

confidence: 99%

Developing a Library of Shear Walls Database and the Neural Network Based Predictive Meta-Model

Moradi

Hariri-Ardebili

2019

Applied Sciences

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There is a large amount of useful information from past experimental tests, which are usually ignored in test-setup for the new ones. Variation of assumptions, materials, test procedures, and test objectives make it difficult to choose the right model for validation of the numerical models. Results from different experiments are sometimes in conflict with each other, or have minimum correlation. Furthermore, not all these information are easily accessible for researchers and engineers. Therefore, this paper presents the results of a comprehensive study on different experimental models for steel plate and reinforced concrete shear walls. A unique library of up to 13 parameters (mechanical properties and geometric characteristics) affecting the strength, stiffness and drift ratio of the shear walls are gathered including their sensitivity analysis. Next, a predictive meta-model is developed based on artificial neural network. It is capable of forecasting the responses for any desired shear wall with good accuracy. The proposed network can be used to as an alternative to the nonlinear numerical simulations or expensive experimental test.

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Practical Nonlinear Modeling of Reinforced Concrete Structural Walls

Cited by 36 publications

References 11 publications

A novel method for quantifying damage to cast‐in‐place self‐centering concrete stepping walls

A novel method for quantifying damage to cast‐in‐place self‐centering concrete stepping walls

The Performance of Resistance Progressive Collapse Analysis for High-Rise Frame-Shear Structure Based on OpenSees

Developing a Library of Shear Walls Database and the Neural Network Based Predictive Meta-Model

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