Nonlinear behavior of reinforced concrete shear walls using macroscopic and microscopic models

Jalali, Abdolrahim; Dashti, Farhad

doi:10.1016/j.engstruct.2010.05.015

Cited by 40 publications

(22 citation statements)

References 4 publications

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“…Since the analysis of CTSW is designed to resist earthquake loads, it is worth pointing out that it involves nonlinear material behavior and requires a special treatment and scrutiny in modelling. The finite element technique approach has been employed in recent years to model the reinforced concrete shear walls Meanwhile, though different analytical models are introduced to predict the nonlinear behavior of RC shear wall [14,15], little effort has been devoted to the analysis of the microstress state in different development stages. In this part, the FE model is designed within the ABAQUS 6.13 software package.…”

Section: Finite Elements Simulationmentioning

confidence: 99%

Performance of low rise concealed truss composite shear walls with external columns

Zhang

Tao

Zhang³

2018

Eng. rev. (Online)

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A review on the previous studies shows that limited analytical or experimental studies on the low-rise concealed truss shear walls with external columns under monotonic loading have already been conducted. The combination of concealed truss was welded to I-shaped steel frame and flat steel support. Two different aspect ratio composite shear walls were tested under static monotonic loading, and the failure mode, bearing capacity, ductility and stiffness were explored. A finite element model was developed and used to simulate the composite shear walls under constant axial load and lateral loading. The comparison of test results confirmed that the finite element model could predict the behavior of composite shear walls accurately. Meanwhile, stress analyses of the specimens were studied to simulate stress distribution of reinforcement, and to analyze the steel of composite shear wall with external columns at different loading stages. Taken together, this study could be a basis for developing an accurately simplified model.

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Section: Finite Elements Simulationmentioning

confidence: 99%

Performance of low rise concealed truss composite shear walls with external columns

Zhang

Tao

Zhang³

2018

Eng. rev. (Online)

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“…Nonetheless, because ground motion variability is more significant than uncertainties of structural parameters in affecting local engineering demand parameters, refer to, for instance, the results for a RC building [17], the aforementioned hysteretic representation will be deterministic. With regard to RC shear wall structures, their seismic response has already been extensively analysed; refer to among others [18][19][20][21]. Conversely and with reference to high-strength steel MRFs, it was deemed necessary to investigate new typologies of both beam-to-column (BTC) and column-base (CB) joints.…”

Section: Background and Motivationmentioning

confidence: 99%

Tests and model calibration of high‐strength steel tubular beam‐to‐column and column‐base composite joints for moment‐resisting structures

Pucinotti

Tondini

Zanon

et al. 2015

Earthq Engng Struct Dyn

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Performance-based engineering (PBE) methodologies allow for the design of more reliable earthquakeresistant structures. Nonetheless, to implement PBE techniques, accurate finite element models of critical components are needed. With these objectives in mind, initially, we describe an experimental study on the seismic behaviour of both beam-to-column (BTC) and column-base (CB) joints made of high-strength steel S590 circular columns filled with concrete. These joints belonged to moment-resisting frames (MRFs) that constituted the lateral-force-resisting system of an office building. BTC joints were conceived as rigid and of partial strength, whereas CB joints were designed as rigid and of full strength. Tests on a BTC joint composed of an S275 steel composite beam and high-strength steel concrete-filled tubes were carried out. Moreover, two seismic CB joints were tested with stiffeners welded to the base plate and anchor bolts embedded in the concrete foundation as well as where part of a column was embedded in the foundation with no stiffeners. A test programme was carried out with the aim of characterising these joints under monotonic, cyclic and random loads. Experimental results are presented by means of both force-interstory drift ratio and moment-rotation relationships. The outcomes demonstrated the adequacy of these joints to be used for MRFs of medium ductility class located in zones of moderate seismic hazard. Then, a numerical calibration of the whole joint subassemblies was successfully accomplished. Finally, non-linear time-history analyses performed on 2D MRFs provided useful information on the seismic behaviour of relevant MRFs. Copyright plastic hinge located on the column outside the plinth detected by computing the difference between I-1 and I-0 (Figure 8(c) and (d)). Collapse was caused by brittle failure of the column wall near the weld between the column and the base plate owing to phenomenon of local instability in the wall of the column, as depicted in Figure 12(d). In this case, plastic rotations exceeded 45 mrad. Finally, with reference to CB joints, no requirements of a minimum plastic rotation are provided in EN1998-1 [23]. Figure 11. Force-interstorey drift ratio curves and moment-rotation relationships: (a) CBJSEE, (b) CBJSER, (c) CBJINE and (d) CBJINR.

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“…Several models for predicting the lateral load-displacement relationship of RC walls have been proposed by many researchers. These range from simple bilinear models (Huang et al, 2011;Paulay, 2001;Wallace, 2007), simplified hysteretic models (Hidalgo et al, 2002), hysteretic models based on spring elements (Ghobarah and Youssef, 1999;Orakcal et al, 2004) to more complex finite-element models (Belmouden and Lestuzzi, 2007;Jalali and Dashti, 2010).…”

Section: Conceptual Outline Of Theoretical Modelsmentioning

confidence: 99%

Seismic performance of lightly reinforced structural walls for design purposes

Wibowo

Wilson

Lam

et al. 2013

Magazine of Concrete Research

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Lightly reinforced concrete walls are commonly found in low-to-moderate seismic regions such as Australia. While many theoretical analyses on lateral load-displacement of structural walls have been proposed and widely used, not many have been developed for lightly reinforced concrete walls. The lateral load-displacement behaviour and failure mechanism of lightly reinforced structural walls differ to those of heavily reinforced concrete walls, particularly in terms of tension stiffening effects, possible failure mechanisms and drift capacities. An analytical study on lightly reinforced rectangular concrete walls is presented in this paper. A parametric study was conducted to provide initial insight into the effect of four design parameters (aspect ratio, axial load ratio, transverse reinforcement ratio and longitudinal reinforcement ratio) on the ultimate displacement capacity of reinforced concrete walls. Two analytical models were developed to predict the lateral load-displacement behaviour of lightly reinforced walls consisting of a detailed wall model and a simplified wall model that provides a quick and conservative estimate for initial design checking purposes using displacement-based principles. Both models are shown to provide good agreement with experimental results in the literature. Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad Magazine of Concrete Research Volume 65 Issue 13 Seismic performance of lightly reinforced structural walls for design purposes Wibowo, Wilson, Lam and Gad

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Nonlinear behavior of reinforced concrete shear walls using macroscopic and microscopic models

Cited by 40 publications

References 4 publications

Performance of low rise concealed truss composite shear walls with external columns

Performance of low rise concealed truss composite shear walls with external columns

Tests and model calibration of high‐strength steel tubular beam‐to‐column and column‐base composite joints for moment‐resisting structures

Seismic performance of lightly reinforced structural walls for design purposes

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