Design Method for Steel Plate Shear Wall Restrained by Cross Stiffening Type

Yasunaga, Jumpei; Ueki, Takuya; Murakami, Yukio; Ono, Junichiro; Kimura, Seiya; Ohyama, Tatsuya; Ikarashi, Kikuo

doi:10.3130/aijs.83.191

Cited by 2 publications

(7 citation statements)

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“…Due to this tendency, when the buckling stress ratio is approximated as a function of the flexural rigidity ratio c so as to include the lowest value of the buckling stress ratio, it can be expressed for each range of the aspect ratio as Eq. (11). When the aspect ratio is greater than 1.0, the surrounding vertical frame member is longer than the surrounding horizontal frame member.…”

Section: Effect Of Out-of-plane Stiffness Of Surrounding Vertical Framentioning

confidence: 97%

“…In Ref. [11], the elastic buckling strength of the steel shear wall is calculated by determining the buckling coefficient k using the bending rigidity ratio γ as shown in Eq. ().

k = k_{1} [\frac{1}{3} \frac{(A_{1} + A_{2}) γ}{1 + A_{2} γ} (\frac{k_{2}}{k_{1}} {()(, \frac{B}{s})}^{2} - 1) + 1],

γ = \frac{E I_{s}}{D_{t} B},

I_{s} = \frac{t_{s} h_{s}^{3}}{3},

D_{t} = \frac{E t^{3}}{12 (1 - v^{2})} .

…”

Section: Elastic Buckling Strength Of Stiffened Platesmentioning

confidence: 99%

“…Here, k 1 and k 2 are the plate buckling coefficients of the wall and plate inside the stiffener frame calculated from equations 11 , respectively. A 1 and A 2 are coefficients determined based on the boundary conditions.…”

Section: Elastic Buckling Strength Of Stiffened Platesmentioning

confidence: 99%

“…[10], and design techniques applying the results are shown. In addition, the authors 11 carried out an analysis by finite element method (FEM). They proposed a simple and rational design method for stiffeners to obtain a stable cyclic behavior of steel shear walls with cross stiffeners in the front and back.…”

Section: Introductionmentioning

confidence: 99%

“…However, the range of the number of stiffeners n specified in Refs. [10,11] is limited to 1 ≤ n ≤ 3; thus, it is necessary to explore an elastic buckling strength calculation method with higher versatility. In addition, Ref.…”

Section: Introductionmentioning

confidence: 99%

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Effect of surrounding frame members on the buckling behavior of steel shear walls restrained by stiffeners

Ikarashi

Shimomura

Yasunaga³

et al. 2020

Japan Architectural Review

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Numerous studies have addressed the influence of the surrounding frame members on the in-plane properties of steel shear walls with stiffeners. However, the effect of the out-of-plane stiffness on the buckling strength of stiffening plates has not been elucidated. Herein, the influence of surrounding frame members on the buckling behavior of steel shear walls reinforced by cross stiffeners was investigated. A calculation formula for the elastic buckling strength of the stiffened plate was proposed by eigenvalue analysis. In addition, the relationship between the buckling strength and out-of-plane stiffness of the surrounding frame members was revealed and a calculation formula for the buckling strength considering the out-of-plane stiffness was put forward. Finally, through experimental tests and large deformation analysis, the effect of vertical frame members on the elasto-plastic property of the stiffened plate was shown. The results obtained are as follows. This study proposes an elastic buckling strength calculation formula for a stiffened plate by correcting the elastic buckling strength calculation formula of an orthotropic plate using the ratio between the torsional rigidity of an actual stiffened plate and that of the plate regarded as anisotropic. The rate of decrease in elastic buckling strength of the stiffened plate due to the out-of-plane stiffness of the surrounding frame member can be evaluated by the flexural rigidity ratio between the surrounding member and the stiffened plate. The rate of decrease in elastic buckling strength of stiffened plates due to the out-of-plane stiffness of the left and right surrounding vertical frame members with different bending stiffnesses and intermediate vertical frame members can be evaluated by the buckling stress ratio determined from the out-of-plane stiffness of the surrounding vertical frame members. It is possible to obtain a stable behavior even if the out-of-plane stiffness of the surrounding member is relatively small, if the elastic buckling strength is higher than the shear yield strength of the stiffened plate. It was confirmed that the effect of the end constraint condition on the elasto-plastic behavior of a stiffened plate was negligible. The results obtained in this study can facilitate the construction of novel earthquake-resistant steel shear walls. Keywords cross stiffener, elastic buckling, elasto-plastic behavior, out-of-plane rigidity, steel shear wall, surrounding frame member This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Effect Of Out-of-plane Stiffness Of Surrounding Vertical Framentioning

confidence: 97%

“…In Ref. [11], the elastic buckling strength of the steel shear wall is calculated by determining the buckling coefficient k using the bending rigidity ratio γ as shown in Eq. ().

k = k_{1} [\frac{1}{3} \frac{(A_{1} + A_{2}) γ}{1 + A_{2} γ} (\frac{k_{2}}{k_{1}} {()(, \frac{B}{s})}^{2} - 1) + 1],

γ = \frac{E I_{s}}{D_{t} B},

I_{s} = \frac{t_{s} h_{s}^{3}}{3},

D_{t} = \frac{E t^{3}}{12 (1 - v^{2})} .

…”

Section: Elastic Buckling Strength Of Stiffened Platesmentioning

confidence: 99%

Section: Elastic Buckling Strength Of Stiffened Platesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of surrounding frame members on the buckling behavior of steel shear walls restrained by stiffeners

Ikarashi

Shimomura

Yasunaga³

et al. 2020

Japan Architectural Review

Self Cite

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Design Method for Steel Plate Shear Wall Restrained by One-Sided Stiffening Type

Yasunaga¹,

Ueki

Murakami

et al. 2021

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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In this paper, the new rational design method of the stiffeners arranged in one-side of the steel plate shear wall is proposed. The purpose of this study is to directly estimate plastic buckling strength and plastic deformation capacity by using the width-thickness ratio β normalized by yield strength and elastic buckling coefficient. The relationship between β and plastic deformation capacity is formulated based on the results of FEM analysis. In addition, the effects of the cyclic loading and surrounding frame members are revealed by experimental tests. It is indicated that the proposed method enable to design the stiffeners more rationally.

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Design Method for Steel Plate Shear Wall Restrained by Cross Stiffening Type

Cited by 2 publications

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Effect of surrounding frame members on the buckling behavior of steel shear walls restrained by stiffeners

Effect of surrounding frame members on the buckling behavior of steel shear walls restrained by stiffeners

Design Method for Steel Plate Shear Wall Restrained by One-Sided Stiffening Type

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