Influence of compressive load on concrete filled steel tubular column with variable thickness

Ahiwale, Dhiraj D.; Khartode, Rushikesh; Bhapkar, Akshay; Narule, Giridhar N.; Sharma, Kamalkishor

doi:10.1007/s41062-020-00390-z

Cited by 5 publications

(3 citation statements)

References 29 publications

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“…The numerical model was based on finite element analysis using LS-DYNA. Ahiwale et al (2020) dealt with a Concrete-Filled Tubular (CFT) structure consisting of high strength, favorable ductility, fire resistance and energy absorption. Alomarah et al (2020) dealt with auxetic structures that exhibit Negative Poisson's Ratio (NPR).…”

Section: Review Of the Literaturementioning

confidence: 99%

Experimental Comparison of the Known Hypotheses of the Lateral Buckling for Semi-Slender Pinned Columns

Murawski¹

2021

International Journal of Structural Glass and Advanced Material

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The paper presents the comparison of experimental results obtained from tests on semi-slender columns with pinned ends made of steel R35 to simplifications and hypotheses of loss of stability by lateral buckling in elastic-plastic states of columns axially compressed by force. The Tetmajer-Jasiński's and Johnson-Ostenfeld's simplifications, as well as the hypotheses given by Engesser and Kármán and Shanley, Ylinen, Březina, Pearson and Bleich and Vol'mir and the author's one approximated, are analyzed. The graphs of surface functions of critical compressive stress cr(A, L*t) depending on a cross-section area and length times thickness product are presented as the theoretical examples of thin-walled cylindrical and square columns made of steel R35. In order to compare the experimental results with other simplifications and hypotheses are shown in the adequate ranges for elastic-plastic states as the graphs of the functions of critical compressive stress depending on slenderness ratio cr().

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Section: Review Of the Literaturementioning

confidence: 99%

Experimental Comparison of the Known Hypotheses of the Lateral Buckling for Semi-Slender Pinned Columns

Murawski¹

2021

International Journal of Structural Glass and Advanced Material

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“…Abedini et al (2020) focused on investigating blast load parameters to design reinforced concretes columns to withstand blast detonation. Ahiwale et al (2020) tested the twelve concrete-filled tubular columns under axial compression. The behaviour of CFT columns has been studied in terms of axial loadcarrying capacity, deflection, and buckling effects and compared the behaviour with numerical results determined using Eurocode 4 and AISC 360-10.…”

Section: Literature Reviewmentioning

confidence: 99%

Stability, Stress and Strain Analysis of Very Slender Pinned Thin-Walled Box Columns according to FEM, Euler and TSTh

Murawski¹,

Wahrhaftig²

2021

American Journal of Engineering and Applied Sciences

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In this study, a Finite Element Method (FEM) analysis is presented for the loss of stability in elastic states of very slender pinned without friction box-section thin-walled column axially compressed. From the FEM buckling linear stress analyses are determined the compressing critical forces for 36 cases, presented in tables and as the surface functions in dependence on the slenderness ratio and cross-section. Also are presented graphs obtained from the FEM post-buckling linear stress analysis for the elastic central line, slope, deflection and states of the stresses and strains of the box-section column 202812500 mm made of steel, by the assumption that a maximal deflection equals the half of a side dimension. The obtained from the FEM computing function and surface graphs are compared and then discussed with graphs corresponding to Euler's and Technical Stability Theory (TSTh) results. Finally are compared graphs of the stresses and strains of box-section thin-walled column 202812500 obtained from FEM and TSTh, but under compressing critical force determined according to TSTh.

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“…The couples of simulations were performed with changing blast parameters to study the effects of various scaled distances on the nonlinear behavior of RC columns. Ahiwale et al (2020) dealt with a Concrete-Filled Tubular (CFT) structure consisted of high strength, favorable ductility, fire resistance and energy absorption. The twelve CFT columns had been tested under axial compression and they behavior had been studied in terms of axial load-carrying capacity, deflection and buckling effects.…”

Section: Introductionmentioning

confidence: 99%

Technical Buckling, Stress and Strain Simplified Analysis of Semi-Slender Thin-Walled Cylindrical Pinned Column

Murawski¹

2021

International Journal of Structural Glass and Advanced Material

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The stability of load-bearing members is a challenging issue for designers. The avoidance of possible stability troubles is a mandatory step of the overall design process. The paper presents and discusses two simplified methods based on the Technical Stability Theory (TSTh) of loss of stability of lateral buckling in elastic-plastic states of semi-slender columns axially compressed by force. It is assumed that in the critical elastic-plastic transverse cross-section there are the elastic and plastic parts of the area, keeping strength. To simplify the calculations, there are assumed the simplifications that the whole moment of inertia of a cross-section area is taken into account Jz = Jz all , the plastic module equals compress module Epl = Ec taken from experimental researches and as the next bigger simplification, the plastic module equals compressing module Epl = 0. The graphs of functions of the curved axes, their slopes, deflections of the columns, stresses and strains in thin-walled columns and compressing critical stresses depending on the cross-section areas and slenderness ratios are presented as the theoretical examples of thin-walled cylindrical columns and compared to results obtained from experiments with columns made of steel St35.

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Influence of compressive load on concrete filled steel tubular column with variable thickness

Cited by 5 publications

References 29 publications

Experimental Comparison of the Known Hypotheses of the Lateral Buckling for Semi-Slender Pinned Columns

Experimental Comparison of the Known Hypotheses of the Lateral Buckling for Semi-Slender Pinned Columns

Stability, Stress and Strain Analysis of Very Slender Pinned Thin-Walled Box Columns according to FEM, Euler and TSTh

Technical Buckling, Stress and Strain Simplified Analysis of Semi-Slender Thin-Walled Cylindrical Pinned Column

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