Coupled Buckling Behavior and Plastic Deformation Capacity of H-Shaped Steel Beams Under Cyclic Bending Shear

Ikarashi, Kikuo; Suekuni, Ryota; Tomo, Nobuyuki

doi:10.3130/aijs.77.1319

Cited by 12 publications

(4 citation statements)

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“…Furthermore, Kimura et al 1 previously proposed the evaluation index, modified W f , for assessing the structural performance of I-shaped beams collapsed with dominant local buckling under alternating axial force, referring to W f originally constructed by Ikarashi et al 19 The formula of the modified W f is indicated in Eqs. (1)(2)(3)(4).…”

Section: Outline Of Cyclic Loading Tests On I-shaped Beams Under Alte...mentioning

confidence: 99%

“…Nakata and Idota have constructed the hysteresis model of the load‐displacement relation up to the stable phase after the lateral‐torsional buckling based on numerical analyses . Furthermore, Ikarashi et al have proposed the evaluation index, Λ c , of I‐shaped beams collapsed with lateral‐torsional buckling as an interpolated function between the width‐thickness ratio W f and the normalized slenderness ratio λ b . We referred to the aforementioned researches to calculate the structural capacities by using the width‐thickness ratio and slenderness ratio.…”

Section: Introductionmentioning

confidence: 99%

“…3 Furthermore, Ikarashi et al have proposed the evaluation index, Λ c , of I-shaped beams collapsed with lateral-torsional buckling as an interpolated function between the width-thickness ratio W f and the normalized slenderness ratio k b . 4 We referred to the aforementioned researches to calculate the structural capacities by using the width-thickness ratio and slenderness ratio.…”

Section: Introduction 11 Research Backgroundmentioning

confidence: 99%

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Rotation capacity of I‐shaped beams collapsed with lateral‐torsional buckling under reversed axial forces

Suzuki¹,

Kimura

Kasai

2019

Japan Architectural Review

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I‐shaped beams installed in a braced structure are subjected to reversed axial forces during earthquakes. Previously, we have derived the evaluation index and formulae for beams that collapsed with dominant local buckling. In this paper, we present additional experiments and numerical analyses conducted to clarify the influences of lateral‐torsional buckling on structural performances. Based on the results obtained, a new evaluation index is proposed by employing the normalized slenderness ratio introduced in this research. Finally, the applicability of the previous equation of Bauschinger effect coefficient is investigated to calculate the hysteretic energy dissipation.

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Section: Outline Of Cyclic Loading Tests On I-shaped Beams Under Alte...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introduction 11 Research Backgroundmentioning

confidence: 99%

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Rotation capacity of I‐shaped beams collapsed with lateral‐torsional buckling under reversed axial forces

Suzuki¹,

Kimura

Kasai

2019

Japan Architectural Review

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“…On the other hand, the influence of various boundary conditions and end moment ratio on elastic lateral buckling is presented [7] . Furthermore, a prediction method of rotational capacity limited by the coupling of the local buckling and the lateral buckling is presented where boundary conditions of the beam are considered [8] .…”

Section: Introductionmentioning

confidence: 99%

Failures and Prediction Methods of Lateral Buckling Strength of H-Shaped Beams Connected by Flush End Plates

Matsubara

Takahashi

Ikeguchi

et al. 2018

KEM

Self Cite

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This paper presents boundary conditions for lateral buckling of the H-shaped beams connected to columns by flush end plates which fall into the lateral buckling following the out of plane plastic deformations of the flush end plates. The study is conducted by the following procedure: First, the behavior of the connection is researched by the no buckling experiment under the cyclic loading. As a result, it is found that the relationship between the out of plane plastic deformations of the endplates and the bending moment at the beam end can be predicted. Next, the FEM analyses of the rigid-frame structures consist of the slender beams having flush end plates connection and the structures consist of the beams having rigid connection are conducted to research the stress conditions in the tension flanges and the compression flanges of the beams during falling into lateral buckling. As a result, it is found that the rigid connection is restraining warping of the beam more tightly than the flush end plates connection, then the maximum bending moment strength against lateral buckling of the beams connected by rigid connections is higher than those of the beams connected by flush endplate. We recommend that the boundary conditions for the lateral buckling of the beams connected by flush end plates should be regarded to be different from those of the beams connected by the rigid connections.

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Model of Load-Deformation Relations for H-Shaped Steel Beams Under Monotonic Loading

Nakata

Idota

2016

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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To develop a hysteresis model for a H-shaped steel beam under cyclic loading, it is necessary to obtain a high-precision load-deformation curve over a wide deformation range under monotonic loading. The purpose of this study is to develop elastic-plastic models of loaddeformation relations for H-shaped steel beams under monotonic loading that consider coupling of local and lateral buckling. The fi nite element method is employed to investigate such coupling for large deformations. In addition, the effect of the steel yield ratio on beam behavior is clarifi ed, and formulae for the maximum strength and the deformation capacity are determined. Based on the results, a model of load-deformation relations are formulated that were functions of the width-to-thickness ratio, the slenderness ratio for lateral torsional buckling, and the yield ratio for the steel.

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Coupled Buckling Behavior and Plastic Deformation Capacity of H-Shaped Steel Beams Under Cyclic Bending Shear

Cited by 12 publications

References 1 publication

Rotation capacity of I‐shaped beams collapsed with lateral‐torsional buckling under reversed axial forces

Rotation capacity of I‐shaped beams collapsed with lateral‐torsional buckling under reversed axial forces

Failures and Prediction Methods of Lateral Buckling Strength of H-Shaped Beams Connected by Flush End Plates

Model of Load-Deformation Relations for H-Shaped Steel Beams Under Monotonic Loading

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