US–Japan cooperative earthquake research program on CFT structures: achievements on the Japanese side

Nishiyama, Isao; Morino, Shosuke

doi:10.1002/pse.164

Cited by 9 publications

(4 citation statements)

References 2 publications

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“…Research works on concrete-filled steel tubes conducted by Schneider [5] showed that compared to square and rectangular columns, circular ones offer substantial postyield strength and stiffness. In the last few decades, experimental, numerical and analytical investigations have been carried out on the structural behaviour of concrete-filled steel circular columns under various loading conditions, as summarized in literature [6][7][8][9][10][11]. Commonly, there are two methods for increasing the resistance of concrete-filled steel columns [1].…”

Section: Introductionmentioning

confidence: 99%

Behaviour of concrete-filled cold-formed high strength steel circular stub columns

Cai

Chen

et al. 2020

Thin-Walled Structures

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Section: Introductionmentioning

confidence: 99%

Behaviour of concrete-filled cold-formed high strength steel circular stub columns

Cai

Chen

et al. 2020

Thin-Walled Structures

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“…The second group includes the phenomenological calculation methods based on experimental data and able to take into account all advantages of CFST [13,14].…”

Section: Actual Problems Of Engineering Mechanicsmentioning

confidence: 99%

Simulation of Performance of CFST Elements Containing Differentiated Profile Tubes Filled with Reinforced Concrete

Vatulia

Lobiak

Chernogil

et al. 2019

MSF

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The approach to calculating CFST elements is considered in which physical non-linearity of materials, geometric non-linearity of the tube and the effect of increasing the strength of the core are taken into account. Finite element models are developed and proposed as the basis for more accurate method of calculating concrete-filled steel elements consisting of differentiated profile tubes filled with reinforced concrete. The technique uses a step iteration algorithm involving analytical dependencies and finite element simulation. The criterion for determining the load bearing capacity of CFST elements was the achievement of the stresses in the tube of the characteristic strength. The possibility of estimating the load bearing capacity of elements by limiting stresses in the core concrete is also implemented. The result of the calculations was obtaining the stress-strain and limiting state of the differentiated profile tubes with CFST elements, and graphic analysis of the regularities of stress redistribution at different stages of performance of columns. In general, with the accepted problem statement we could establish the exact stress-strain state, take into account the elastic-plastic deformations of concrete, its cracking and destruction, and geometric nonlinearity of the tube. The effect of performance of the corrugated sheet as a tube was established.

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“…Due to a large percentage of inelastic damage occurring in the beam elements, existing seismic standard codes require a strong-column weak-beam mechanism during their design [ 13 , 14 , 15 ]. A better understanding of the bending behavior of these elements and an appropriate method of modeling this behavior is required before steel tubes can be used for seismic design applications [ 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Prediction of the Bending Behavior of Circular Hollow Steel Tube Sections Using Finite Element Analysis

et al. 2022

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Circular hollow steel tube columns are widely used in high-rise buildings and bridges due to their ductility and lower weight compared to reinforced concrete. The use of this type of steel section has several advantages over using reinforced concrete members. The present study investigates the bending behavior of steel circular hollow sections when subjected to bending loads. The variations in material characteristics with regard to position along the cross-section of a steel tube member is first considered in this experimental study, providing for a more accurate definition of the material behavior in the model. A supported beam tested by two-point loads is the loading type that is used to study the bending performance of steel tubes. Ten circular hollow beam specimens were prepared and tested up to and post the failure stage with the following dimensions: thickness (2, 3, and 6 mm), diameter (76.2, 101.6, and 219 mm), and span (1000, 1500, and 2000 mm). A finite element analysis has been conducted for these ten specimens using the ANSYS program. The finite element model is compared to experimentally obtained data to verify that both local and global behaviors are correctly considered. The load-deflection results of this analysis showed a good agreement with the experimental results. A parametric study also was performed that considered two variables, which were the effect of the presence of circular rings and the change of opening location in the length direction on the specimens’ behavior. This study showed that the presence of the circular rings in the specimen led to an increase in its ultimate strength (of 53.24%) compared with the non-presence of these rings. In contrast, the presence of openings at 30, 40, and 50% from the specimen length reduced the strength capacity by 8.76, 14.23, and 17.88%, respectively.

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US–Japan cooperative earthquake research program on CFT structures: achievements on the Japanese side

Cited by 9 publications

References 2 publications

Behaviour of concrete-filled cold-formed high strength steel circular stub columns

Behaviour of concrete-filled cold-formed high strength steel circular stub columns

Simulation of Performance of CFST Elements Containing Differentiated Profile Tubes Filled with Reinforced Concrete

Evaluation and Prediction of the Bending Behavior of Circular Hollow Steel Tube Sections Using Finite Element Analysis

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