FEM Analysis for Hysteretic Behavior of Thin-Walled Columns

Goto, Yuichi; Wang, Qingyun; Obata, Makoto

doi:10.1061/(asce)0733-9445(1998)124:11(1290)

Cited by 76 publications

(15 citation statements)

References 11 publications

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“…a = Sa/6y (6) where 8m and 6a are the displacements corresponding to the maximum lateral load and its displacement amplitude respectively. A glance at Figs.…”

Section: (4) Materials Propertiesmentioning

confidence: 99%

Effects of Multi-Directional Displacement Paths on the Cyclic Behaviour of Rectangular Hollow Steel Columns

Watanabe

Sugiura

Oyawa

2000

Doboku Gakkai Ronbunshu

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The unprecedented damage to steel structures during the Hyogo-ken Nanbu Earthquake not only prompted the revision of the Japanese seismic code but also emphasized the need for a comprehensive understanding of seismic response, which in reality is complex and multi-directional, as opposed to the conventionally assumed urn-directional approach. Thus, this experimental study investigated the effects of multi-directional load histories on the response of tubular columns widely used in the construction of elevated highways and building structures. Test results indicate that, in comparison with uniaxial displacement paths, multi-directional displacement patterns lead to significant degradation of stiffness, strength and ductility of tubular columns.

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“…a = Sa/6y (6) where 8m and 6a are the displacements corresponding to the maximum lateral load and its displacement amplitude respectively. A glance at Figs.…”

Section: (4) Materials Propertiesmentioning

confidence: 99%

Effects of Multi-Directional Displacement Paths on the Cyclic Behaviour of Rectangular Hollow Steel Columns

Watanabe

Sugiura

Oyawa

2000

Doboku Gakkai Ronbunshu

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“…References [2]~ [4] indicated that the commonly failure modes were local large plasticity deformation on the chord surface, while the specimens were subjected to axial loading, or axial loading accompanied with bending moment. Reference [5] researched on multilinear kinematic hardening model, isotropic hardening model by finite element analysis, and the following conclusion was that it was effective to use multilinear kinematic hardening model studying on steel tube. References [6]~ [7] studied on full-width and stepped K-type gapped RHS-joints by finite element analysis, the effects of geometry parameters on joints deformation, stiffness and ultimate capacity were investigated.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Hysteretic Behaviors of Square Tubular T-joint

Deng¹,

Li²,

Wang³

et al. 2015

Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering

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In order to study the failure modes and hysteretic behaviors of square tubular T-joints, three specimens were made to conduct the cyclic loading test. The test stimulated the constrain condition with hinge connection of both ends of chord member, and the brace was subjected to axial cyclic loading. Based on the experiment, the specimen consisting of small-geometry brace showed a good ductility compared with the big one, and the obvious plastic deformation occurred at the intersection between chord and brace member, finally the welding was failure. However, the specimen consisting large-size brace appeared a large deformation on the side wall of chord member. In addition, due to the poor ductility of welding on the plates contained in chord member, the welding fracture on the intersection between upper flange and web plates leaded to test end for all the specimens.

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“…Many researchers used the finite-element (FE) based analysis to predict the hysteretic behavior and failure modes of the thin-walled steel members under cyclic loading (e.g. Gao et al [6], Goto et al [7]). Although the FE numerical approaches, employing the shell elements, can accurately simulate the buckling of the thin-walled box member, as given in the literature (Ge et al [2]), the FE models included the complex element grids, whose sizes remarkably affected the results.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2012

IJASC

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This paper proposes a simplified seismic evaluation method for the thin-walled stiffened box steel pier to predict its strength and ductility. In this method, two modified bilinear material models for the fiber-beam element are suggested to include the local buckling of the base stiffened plate. An experiment validated a shell element based model, which was selected for comparison with the proposed fiber-beam based model. Twelve numerical cases were then simulated by the shell element based model and the fiber-beam element based model, respectively, and their accuracies were compared with each other. Numerical results showed that the proposed pushover method, employing the amended bilinear kinematic material model for the fiber beam element, is of good accuracy. If the maximum strength is taken as the ultimate point, the bilinear material model, replacing the yield point by the buckling stress, is recommended. If 95 percent of the maximum strength after the peak is regarded as the ultimate point, the elastic-perfectly plastic material model is suggested.

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FEM Analysis for Hysteretic Behavior of Thin-Walled Columns

Cited by 76 publications

References 11 publications

Effects of Multi-Directional Displacement Paths on the Cyclic Behaviour of Rectangular Hollow Steel Columns

Effects of Multi-Directional Displacement Paths on the Cyclic Behaviour of Rectangular Hollow Steel Columns

Experimental Research on Hysteretic Behaviors of Square Tubular T-joint

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