Comparative Study of State-of-the-Art Macroscopic Models for Planar Reinforced Concrete Walls

Kolozvari, Kristijan; Arteta, Carlos A.; Fischinger, Matej; Gavridou, Sofia; Hube, M.; Isaković, Tatjana; Lowes, Laura N.; Orakçal, Kutay; Vasquez, Julio Estuardo; Wallace, John W.

doi:10.14359/51710835

Cited by 55 publications

(15 citation statements)

References 27 publications

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“…The modeling of RC shear walls is still an important research topic. It is shown in the literatures [24,25] that the state-of-the-art macroscopic and microscopic models for simulation of RC walls are not able to predict all the failure modes of structural walls. However, most of the main structural response can be well captured in most of the models evaluated in refs.…”

Section: Computational Modelingmentioning

confidence: 99%

“…However, most of the main structural response can be well captured in most of the models evaluated in refs. [24,25] In this study, PERFORM-3D was employed for the modeling of the structure, which is sufficient in the accuracy for the evaluation the seismic performance of the analyzed model. PERFORM-3D provides two elements for simulating shear walls [26][27][28] ; they are (1) shear wall element (SWE) and ( 2) general wall element (GWE).…”

Section: Computational Modelingmentioning

confidence: 99%

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Study on the shear concentration in high‐rise buildings with transfer structure and its effects on seismic performance

Jin

Pan

et al. 2022

Structural Design Tall Build

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The architectural complexity and multifunctional requirements for modern high-rise buildings usually lead to the utilization of combined structural systems, which typically consists of shear walls in higher zones while frames-core walls in lower zones. To fulfill reasonable load transfer between the different structural forms, transfer structures are commonly introduced in high-rise buildings. However, the abrupt conversion in structural form usually causes shear concentration effect in the exterior walls just above the transfer structure, which is particularly vulnerable to seismic loading. In this paper, finite element models based on several types of practical high-rise buildings were presented and analyzed to simulate the shear concentration effect in exterior walls. It was verified that the assumption of infinite stiffness in transfer structures will lead to underestimation of the shear concentration effect.The local deformations of transfer structures were demonstrated to be a key factor to scale the shear concentration. A scale factor of the shear concentration in the shear walls (SCSF) which can measure the intensity of shear concentration was defined. Parametric studies were carried out to provide insight on the influence factors of shear concentration. The results indicated that the SCSF only related to the difference between the rotation of external walls and center walls. Based on timehistory analysis, the influence of SCSF on the seismic performance of high-rise buildings with transfer structures was studied. The results indicated that decreasing of SCSF can control the local damage caused by shear concentration, thereby improving the seismic performance of the structure.

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Section: Computational Modelingmentioning

confidence: 99%

Section: Computational Modelingmentioning

confidence: 99%

Study on the shear concentration in high‐rise buildings with transfer structure and its effects on seismic performance

Jin

Pan

et al. 2022

Structural Design Tall Build

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“…It is recognized that distributed-plasticity beam-column models with fiber sections [20][21][22] provide a more accurate approach to simulate NL behaviour RC walls than lumped-plasticity models under both static and dynamic loads [18], because they can capture the variation of axial force in the axial-flexural interaction. This behaviour can be expressed by shear, bending, or combined shear-bending [7].…”

Section: Modeling Aspectmentioning

confidence: 99%

Slenderness Ratio and Influencing Parameters on the NL Behaviour of RC Shear Wall

2021

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Shear walls are very efficient structural elements to resist lateral seismic disturbance. Despite the aforementioned seismic performance, recent investigations report that they have suffered from significant structural damage after recent seismic activity, even for those complying with seismic provisions. These deficiencies in resistance and deformation capacities need to be explored. This study considers the influence of plastic length Lp, concrete compressive strength f_c28, longitudinal reinforcement ratio ρl, transverse reinforcement ratio ρsh, reduced axial load ν, confinement zone depth CS and focusing on the geometric slenderness λ. The parametric study has been conducted through NL pushover analysis using Peform3D software. The chosen coupled shear-flexure fiber macro model was calibrated with well-known cyclic experimental specimens. The paper points out the discrepancy between the two well-known codes EC8 and ASCE/SEI 41-13. In fact, the value of the slenderness ratio (λ) that trigger the beginning of a purely flexural behaviour recommended by EC8 (λ>2) is very different from the value of the ASCE/SEI 41-13 (λ>3) without accounting for the effect of the reduced axial force. Finally, it was found that RCW capacities are very sensitive to f_c28, ν, ρl, Lp and less sensitive to ρsh and CS. However, (λ) is the most decisive factor affecting the NL wall response. A new limit of slenderness and appropriate deformations of rotations are recommended to provide an immediate help to designers and an assistance to those involved with drafting codes. Doi: 10.28991/cej-2021-03091777 Full Text: PDF

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“…The Institute, which includes more than thirty leading researchers in the field from all over the world, has been active in various fields of research, where Modelling and Analysis working group members have been collaborating on addressing issues mentioned above. A comprehensive summary of the results obtained through this international effort are reported in overview papers by Kolozvari et al (2018Kolozvari et al ( , 2019a. However, given the large number of models and specimens considered in this study, some of the detailed responses, representative of each of the models considered, are not presented in these papers.…”

Section: Objectives and The Concept Of The Special Issuementioning

confidence: 99%

“…C) Interested reader may find additional information about some conceptually different macro models in Kolozvari et al (2018), in particular about the shear wall element implemented in the widely used commercial software Perform 3D (Perform 3D 2019). This model was also used (see continuation of this Section) by Ugalde et al (2019).…”

Section: Overview Of the Contributionsmentioning

confidence: 99%

Guest editorial: Nonlinear modelling of reinforced concrete structural walls

Fischinger

Isaković

Kolozvari

et al. 2019

Bull Earthquake Eng

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Comparative Study of State-of-the-Art Macroscopic Models for Planar Reinforced Concrete Walls

Cited by 55 publications

References 27 publications

Study on the shear concentration in high‐rise buildings with transfer structure and its effects on seismic performance

Study on the shear concentration in high‐rise buildings with transfer structure and its effects on seismic performance

Slenderness Ratio and Influencing Parameters on the NL Behaviour of RC Shear Wall

Guest editorial: Nonlinear modelling of reinforced concrete structural walls

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