Local buckling of thin-walled circular steel sections with or without internal restraint

O'Shea, Martin D.; Bridge, Russell Q.

doi:10.1016/s0143-974x(97)80891-7

Cited by 56 publications

(24 citation statements)

References 2 publications

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“…O'Shea and Bridge [23,24] conducted axial compression tests on thin-walled square and circular carbon steel sections with or without concrete infill. For the in-filled specimens, the concrete was unbonded from the tube by greasing the internal tube surface prior to filling with concrete.…”

Section: Influence Of Loading Methodsmentioning

confidence: 99%

“…This is because this tube was rather stocky, and the steel could be loaded up to its yield strength [23]. For circular tubes with diameter-tothickness ratios D/t varying from 59 to 220, O'Shea and Bridge [24] presented that the concrete infill had little effect on the local buckling strength of the steel tube in axial compression. This is due to the ''elephant's foot'' buckling mode being dominantly outwards which is unaffected by internal restraint.…”

Section: Influence Of Loading Methodsmentioning

confidence: 99%

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Behaviour of short and slender concrete-filled stainless steel tubular columns

Tao

Han

2011

Journal of Constructional Steel Research

379

133

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Section: Influence Of Loading Methodsmentioning

confidence: 99%

Section: Influence Of Loading Methodsmentioning

confidence: 99%

Behaviour of short and slender concrete-filled stainless steel tubular columns

Tao

Han

2011

Journal of Constructional Steel Research

379

133

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“…5 and 8, carbon steel data have been included for comparison purposes as will be discussed in Section 5. The carbon steel data were obtained from stub column tests on CHS conducted by O'Shea and Bridge [27] and Elchalakani et al [28] and on crosssections comprising flat internal elements conducted by Akiyama et al [29] and Uy [30].…”

Section: Class 3 Slenderness Limitmentioning

confidence: 99%

Discrete and continuous treatment of local buckling in stainless steel elements

Gardner

Theofanous

2008

Journal of Constructional Steel Research

141

254

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a b s t r a c tCross-section classification is an important concept in the design of metallic structures, as it addresses the susceptibility of a cross-section to local buckling and defines its appropriate design resistance. For structural stainless steel, test data on cross-section capacity have previously been relatively scarce. Existing design guidance has been developed based on the limited experimental results and conservative assumptions, generally leading to unduly strict slenderness limits. In recent years, available test data for stainless steel cross-sections have increased significantly, enabling these slenderness limits to be re-assessed. In this paper all available stainless steel test data have been collected and additional moment-rotation curves have been presented. The study covers both cold-formed and welded plated elements as well as CHS. Following analysis of the test results, new slenderness limits for all loading conditions have been proposed and statistically validated. In addition to re-assessment of the current slenderness limits, a new approach to the treatment of local buckling in structural elements -the Continuous Strength Method -has been outlined. The Continuous Strength Method (CSM) is based on a continuous relationship between cross-section slenderness and deformation capacity and is applied in conjunction with accurate material modelling. The method enables more rational and precise prediction of local buckling than can be achieved with the traditional cross-section classification approach, thus allowing better utilization of material and more economic design.

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“…For circular sections, a regression analysis of steel CHS stub column data 17,18 led to equation (7). The CHS stub column data and regression curve have been plotted in Fig.…”

Section: Relationship Between Deformation Capacity å Lb and Slendernessmentioning

confidence: 99%

The continuous strength method

Gardner

2008

Proceedings of the Institution of Civil Engineers - Structures

177

148

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Many of the principal concepts that underpin current metallic structural design codes were developed on the basis of bilinear (elastic, perfectly-plastic) material behaviour; such material behaviour lends itself to the concept of section classification. The continuous strength method represents an alternative treatment to crosssection classification, which is based on a continuous relationship between slenderness and (inelastic) local buckling and a rational exploitation of strain hardening. The development and application of the continuous strength method to structural steel design is described herein. Materials that exhibit a high degree of nonlinearity and strain hardening, such as aluminium, stainless steel and some high-strength steels, fit less appropriately into the framework of cross-section classification, and generally benefit to a greater extent from the continuous strength method. The method provides better agreement with test results in comparison to existing design codes, and offers increases in member resistance and a reduction in scatter of the prediction. An additional benefit of the proposed approach is that cross-section deformation capacity is explicitly determined in the calculations, thus enabling a more sophisticated and informed assessment of ductility supply and demand. Further developments to the method are under way.

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Local buckling of thin-walled circular steel sections with or without internal restraint

Cited by 56 publications

References 2 publications

Behaviour of short and slender concrete-filled stainless steel tubular columns

Behaviour of short and slender concrete-filled stainless steel tubular columns

Discrete and continuous treatment of local buckling in stainless steel elements

The continuous strength method

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