Generalized finite element analysis of high-rise wall-frame structural systems

Son, Hong-Jun; Park, Jong‐Hwan; Kim, Hee-Cheul; Lee, Young Hak; Kim, Dae‐Jin

doi:10.1108/ec-07-2016-0266

Cited by 9 publications

(1 citation statement)

References 14 publications

(17 reference statements)

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“…Therefore, if only two or four elements are used in the domain, it may be possible to obtain a highly accurate solution using the GFEM shape functions. A similar observation was made by Son et al 24 Tables 5-7 summarize the results of p-extension performed using the GFEM shape functions with 4, 16, and 64 elements, respectively. The results of the tables are plotted in Figure 11 in log-log scale.…”

Section: Numerical Experimentssupporting

confidence: 76%

Generalized finite element formulation for efficient first-order plastic hinge analysis

Kim

Son

et al. 2019

Advances in Mechanical Engineering

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This article presents generalized finite element formulation for plastic hinge modeling based on lumped plasticity in the classical Euler-Bernoulli beam. In this approach, the plastic hinges are modeled using a special enrichment function, which can describe the weak discontinuity of the solution at the location of the plastic hinge. Furthermore, it is also possible to insert a plastic hinge at an arbitrary location of the element without modifying its connectivity or adding more elements. Instead, the formations of the plastic hinges are achieved by hierarchically adding more degrees of freedom to existing elements. Due to these features, the proposed methodology can efficiently perform the first-order plastic hinge analysis of large-frame structures. A generalized finite element solution technique based on the static condensation scheme is also proposed in order to reduce the computational cost of a series of linear elastic problems, which is in general the most time-consuming portion of the first-order plastic hinge analysis. The effectiveness and accuracy of the proposed method are verified by analyzing several representative numerical examples.

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Section: Numerical Experimentssupporting

confidence: 76%

Generalized finite element formulation for efficient first-order plastic hinge analysis

Kim

Son

et al. 2019

Advances in Mechanical Engineering

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Performance analysis of rocking shear wall‐frame structure

Xia

2020

Structural Design Tall Build

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SummaryIncorporating the shear deformation effect of the shear wall and the restrained moment effect of the link beam, a continuum model is presented to conduct the preliminary analysis of the rocking shear wall‐frame structure. It can be applicable to fixed/hinged systems with link beams fixed/hinged at the ends and to clamped/rocking shear wall‐frame structures with clamped/rocking shear wall at the base. Its comprehension can improve the accuracy and integrality of the analytical theory for shear wall‐frame structures. Analytical solutions to three loading scenarios are derived and make manual computation possible. A finite element with the analytical solutions as the shape functions is presented. This formulation is convenient to analyze the stepped shear wall‐frame structures with variable cross sections along the height and under complicated loads. The frequency equations and mode shapes are also derived. Numerical examples demonstrate the accuracy and excellent predictions of the present model and the finite element formulation.

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A Hand Method for Assessment of Maximum IDR and Displacement of RC Buildings

Bozdoğan

Öztürk

2023

Lecture Notes in Civil Engineering

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Maximum displacement and the maximum interstorey drift ratio are the important factors for the measurement of the vulnerability of multistorey buildings. For this reason, in this paper a method was proposed to calculate the maximum displacement and maximum interstorey drift ratio (IDR) values. In this model, reinforced concrete multistorey structure was modeled as an equivalent flexural-shear frame. Maximum displacement and the maximum IDR were calculated according to the Equivalent Static Loads Method and The Response Spectrum Method using the continuum model and the results were tabulated. With the help of the obtained tables by this study, the maximum displacement and the maximum IDR of the regular multistorey structures can be calculated quickly and practically. The axial deformation of the vertical elements (columns and shear walls) were approximately considered in the study. The convergence of the presented method to the Finite Elements Method was investigated by two examples in the last part of the study.

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Generalized finite element analysis of high-rise wall-frame structural systems

Cited by 9 publications

References 14 publications

Generalized finite element formulation for efficient first-order plastic hinge analysis

Generalized finite element formulation for efficient first-order plastic hinge analysis

Performance analysis of rocking shear wall‐frame structure

A Hand Method for Assessment of Maximum IDR and Displacement of RC Buildings

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