Seismic Response Analysis of Reinforced Concrete Wall Structure Using Macro Model

Kim, Dong-Kwan

doi:10.1007/s40069-016-0131-1

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…structural members under cyclic loading, generally resulting in reduced ductility and energy dissipation capacities. The pinching effect is believed to be caused by opening and closing of concrete cracks, and by the concrete-bar bond behavior in loading, unloading, and reverse loading as well (Kim 2016). This effect has been observed in a previous study (Hayashi et al 1997) and is also similar to the behavior of a reinforcing steel bar anchored in concrete under cyclic loading (Model Code 2010).…”

Section: Load-deformation Curvessupporting

confidence: 62%

Mechanical Performance and Stress–Strain Relationships for Grouted Splices Under Tensile and Cyclic Loadings

2016

Int J Concr Struct Mater

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Experimental studies were conducted on 36 grouted splices to investigate their mechanical performance under four loading schemes: (1) incremental tensile loading, (2) repeated tensile loading, (3) cyclic loading at high stress, and (4) cyclic loading at large strain. Load-deformation responses of the grouted splices under cyclic loadings were featured with pinching effect and stiffness degradation compared to those responses under tensile loadings. The shape of the hysteresis loops of load-deformation curves was similar to that under incremental tensile loading. For the purpose of structural analysis, stress-strain relationships were presented for grouted splices under various loadings.Keywords: sleeve connector, grouted splice, cyclic loading, stress-strain relationship. List of Symbols

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Section: Load-deformation Curvessupporting

confidence: 62%

Mechanical Performance and Stress–Strain Relationships for Grouted Splices Under Tensile and Cyclic Loadings

2016

Int J Concr Struct Mater

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“…The fiber model approach in PERFORM 3D was used to model the shear walls subjected to reversed, cyclic, uniaxial, and dynamic loads, as shown in Figure . This model is equivalent to the widely used multiple‐vertical‐line‐element model, which is a kind of macroscopic shear wall models, consisting of different vertical and horizontal plastic springs. Steel fibers with trilinear stress–strain relationship (without strength loss) were used to model the longitudinal reinforcement in the web and boundary zones.…”

Section: Analytical Modelmentioning

confidence: 99%

Seismic behavior of coupled shear wall structures with various concrete and steel coupling beams

Pang

Sun

et al. 2017

Structural Design Tall Build

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A novel 2-level yielding steel coupling beam (TYSCB) has been developed to enhance the seismic performance of coupled shear wall systems. The TYSCB consists of a shear-yielding beam designed to yield first under minor earthquakes and a bend-yielding beam designed to yield under severe earthquakes. A comparison of seismic behavior of 4 20-storey coupled shear wall structures with reinforced concrete coupling beams, complete steel coupling beams, fuse steel coupling beams, and TYSCB is presented. The dimensions and force-displacement curves of these coupling beams are first designed. Nonlinear dynamic analyses on these structures are carried out under minor and severe earthquakes. The seismic behavior of these models is studied by comparing their storey shear forces, storey drift ratios and ductility demands. The results show that the base shear and storey drift of the structure with TYSCB under both minor and severe earthquakes are less than those of structures with concrete coupling beams and complete steel coupling beams. Furthermore, the ductility demand of coupled shear walls with TYSCB subjected to severe earthquakes can be greatly released compared with those using fuse steel coupling beams. This indicates that the proposed TYSCB has a better balance between ductility demand and energy dissipation, compared to traditional steel coupling beams. KEYWORDSconcrete coupling beam, coupled shear wall, energy dissipation capacity, seismic behavior, steel coupling beam, two-level yielding steel coupling beam

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“…The macroscopic models are based on predicting the overall behavior of a complex wall element with the use of assumptions and idealizations (Vulcano and Bertero 1987;Rojas et al 2016). Some examples of this type of element have been proposed by Kabeyesawa et al (1982), Vulcano and Bertero (1987), Orakcal et al (2006), Panagiotou et al (2012), Kolozvari et al (2015) and Kim (2016). This type of element are efficient, practical and typically available in structural nonlinear programs (Kim 2016), but they are typically problembased (Rojas et al 2016).…”

Section: Introductionmentioning

confidence: 99%

A nonlinear quadrilateral thin flat layered shell element for the modeling of reinforced concrete wall structures

Rojas

Anderson

Massone

2019

Bull Earthquake Eng

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In this article, a simple and accurate quadrilateral thin flat layered shell element formulation for the nonlinear analysis of reinforced concrete (RC) wall systems under static and cycling loads is presented. The 4 node shell element, with 6 degree of freedom (DOF) per node (3 displacements and 3 rotations) is created by superposing the quadrilateral layered membrane element with drilling degrees of freedom (12 DOF, 2 displacement and 1 rotation per node) developed by Rojas et al. (Eng Struct 124:521-538, 2016), and the Discrete Kirchhoff Quadrilateral Element (12 DOF, 1 displacement and 2 rotations) formulated by Batoz and Tahar (Int J Numer Methods Eng 18(11): 1982), to model the inplane and the out of plane bending behavior of the shell element, respectively. In addition, to model the complex behavior and coupling of the axial, flexural and shear behavior, observed in complex RC wall structures, the transversal section of the shell element consists of a layered system of fully bonded, smeared steel reinforcement and smeared orthotropic concrete material with the rotating angle formulation. The formulation used a tangent stiffness matrix approach, which include the coupling of membrane and bending effects. For verification, the shell element formulation is used to model a set of experimental results for T-shaped RC walls that are available in the literature. The proposed element is robust, simple to implement, and it can predict the global results (load vs. displacement and maximum capacity) and also the local behavior (vertical strain at the base level along the web and the flange) observed in RC wall structures.

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Seismic Response Analysis of Reinforced Concrete Wall Structure Using Macro Model

Cited by 10 publications

References 15 publications

Mechanical Performance and Stress–Strain Relationships for Grouted Splices Under Tensile and Cyclic Loadings

Mechanical Performance and Stress–Strain Relationships for Grouted Splices Under Tensile and Cyclic Loadings

Seismic behavior of coupled shear wall structures with various concrete and steel coupling beams

A nonlinear quadrilateral thin flat layered shell element for the modeling of reinforced concrete wall structures

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