Generalisation of the Ayrton-Perry formula for the global-distortional-local buckling of thin-walled members

Nedelcu, Mihai

doi:10.1016/j.tws.2017.04.033

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…Tankova et al [23] presented an Ayrton-Perry format proposal for beam-columns based on the theoretical derivation of [21]. Other proposals were reported in [14,22].…”

Section: Introductionmentioning

confidence: 99%

Archives of Civil Engineering

Giżejowski

Szczerba

Stachura

et al. 2021

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Steel prismatic elements of equal flanges double-tee section subject to major axis bending and compression, unrestrained in the out-of-plane direction between the supports, are vulnerable to buckling modes associated with minor axis flexural and torsional deformations. When end bending moments are acting alone on the quasi-straight member, the sensitivity to lateral-torsional buckling (LTB) is very much dependent upon the ratio of section minor axis to major axis moments of inertia, and additionally visibly dependent upon the major axis moment gradient ratio. In the case of major axis bending with the presence of a compressive axial force, even of rather small value in relation to the section squash resistance, there is a drastic reduction of structural elements in their realistic lengths to maintain a tendency to fail in the out-of-plane mode, governed by the large twist rotation. Increasing the load effects ratio of dimensionless axial force to dimensionless maximum major axis bending moment, the buckling mode goes away from that of lateral-torsional one, starting to become that closer to the minor axis flexural buckling (FBZ) mode. Different aspects of the flexural-torsional buckling (FTB) resistance of the typical rolled H-section beam-column with regard to the General Method (GM) formulation, developed by the authors elsewhere and based on the parametric finite element analysis, are dealt with in this paper. Investigations are concerned with different member slender ratio, different moment gradient ratios and different load effects ratio. Final conclusions are related to practical applications of the proposed format of General Method in relation to the effect of large displacements on the FTB resistance reduction factor described through the dimensionless measure of action effects and the FTB relative slenderness ratio of quasi-straight beam-columns.

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“…Tankova et al [23] presented an Ayrton-Perry format proposal for beam-columns based on the theoretical derivation of [21]. Other proposals were reported in [14,22].…”

Section: Introductionmentioning

confidence: 99%

Archives of Civil Engineering

Giżejowski

Szczerba

Stachura

et al. 2021

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show abstract

“…Recent international research with the use of various proposals is also related to the assessment of the beamcolumn resistance. The first of them is based on a direct application of the Ayrton-Perry approach [10][11][12] where a generalised slenderness concept is applied. The second proposal [13] is the so-called Overall Imperfection Method and it is adequate for computer-aided design methodology which is based on advanced elastic beamcolumn finite element method.…”

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confidence: 99%

Buckling resistance evaluation of steel beam-columns using refined General Method approach

Stachura

Giżejowski

2019

MATEC Web Conf.

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Different aspects of Eurocode 3 General Method (GM) approaches are discussed in this paper. The purpose of present study is to improve the application of GM approach for both beam-columns without intermediate lateral-torsional restraints and with these restraints. The results from the proposed GM are compared with those from Eurocode 3-1-1 interaction equations according to Method 1 and Method 2. A better consistency between the developed GM approach and the Eurocode's interaction equation approach than Eurocode 3 GM approach is observed.

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A review of prediction methods for global buckling critical loads of pultruded FRP struts

Zhang,

2024

Composite Structures

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Generalisation of the Ayrton-Perry formula for the global-distortional-local buckling of thin-walled members

Cited by 7 publications

References 12 publications

Archives of Civil Engineering

Archives of Civil Engineering

Buckling resistance evaluation of steel beam-columns using refined General Method approach

A review of prediction methods for global buckling critical loads of pultruded FRP struts

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