Development of a consistent buckling design procedure for tapered columns

Marques, Liliana; Taras, Andreas; Silva, Luís Simões da; Greiner, Richard; Rebelo, Carlos

doi:10.1016/j.jcsr.2011.10.008

Cited by 43 publications

(28 citation statements)

References 8 publications

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“…In particular, in order to cover a wider range of practical cases (in the lower slenderness range of the unstayed column) the design method needs to incorporate the normalised slenderness (ratio between elastic critical load and squash load) of the entire stayed column system as a relevant parameter in order to be able to define an equivalent imperfection. The authors are currently actively developing an Ayrton-Perry formulation [28] that addresses these issues. …”

Section: Discussionmentioning

confidence: 99%

A full scale experimental study of prestressed stayed columns

Serra

Shahbazian

Silva

et al. 2015

Engineering Structures

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Section: Discussionmentioning

confidence: 99%

A full scale experimental study of prestressed stayed columns

Serra

Shahbazian

Silva

et al. 2015

Engineering Structures

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“…The stability of tapered columns is checked in clause 6.3.4 of the EN 1993-1-1 (denoted as General Method or GM), by ensuring that condition (15) is fulfilled. ⋅ , 1 ⁄ ≥ 1 (1) where is the reduction factor obtained in expression (2) for the non-dimensional slenderness , and analytically describes the reduction in resistance due to out-of-plane instability phenomena. In the current investigation, it is taken as the reduction factor for flexural buckling about the minor-axis .…”

Section: Methodsmentioning

confidence: 99%

“…Following the recommendations on the Annex C of Part 1-5 of Eurocode 3, the two modes were combined by taking the lowest mode as the leading imperfection and considering 70% of the amplitude for the highest mode. The three reference cross-sections of [2], namely IPE200m (modified IPE200), HEB300 and 100×100 have been chosen. Table 1 presents the parameters considered in the numerical study performed in this work.…”

Section: Numerical Modelmentioning

confidence: 99%

General Method for the fire design of tapered steel columns: Out‐of‐plane flexural buckling

et al. 2019

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The General Method (GM) covers the safety check of structural elements with complex support conditions and/or of non-prismatic members. However, it's not widely validated at normal temperature and is inexistent in fire part of the Standard EN 1993-1-2. With that in mind, this investigation aims at proposing and validating the GM to perform the safety check of unrestrained tapered columns at elevated temperatures. This is done, first, by including, in the original formulation, the reduction of steel material properties with the temperature, and later by improving the EN 1993-1-2 out-of-plane buckling curve. With this novel approach, the GM shows good agreement to numerical results and produces accurate predictions of out-of-plane resistance for tapered columns at elevated temperatures.

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“…The Eurocode 3 design rules for columns and beams make use of the Ayrton-Perry equations. In [9] it was found practical to have a similar format for the verification of web tapered columns and beams. Within the project, the Ayrton-Perry format for columns and beams was extended to the verification of web-tapered beam-columns loaded with major axis bending moment and axial force by adaptation of the interaction formulae in EN 1993-1-1 (Eqs.…”

Section: Stability Design Of Non-uniform Membersmentioning

confidence: 99%

13.02: Safety assessment across modes driven by plasticity, stability and fracture

et al. 2017

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Document VersionAuthor's version before peer-review Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication Citation for published version (APA):Simoes da Silva, L., Tankova, T., Marques, L., Kuhlmann, U., Kleiner, A., Spiegler, J., ... Popa, N. (2017). Safety assessment across modes driven by plasticity, stability and fracture. In 8th European Conference on Steel and Composite Structures (EUROSTEEL 2017), September 13-15, 2017, Copenhagen, Denmark (pp. 3689-3698). (CE/Papers; Vol. 1, No. 2-3). DOI: 10.1002/cepa.425 General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. ABSTRACTThe European design rules for steel structures in EN1993 cover various failure modes that were developed using different methodologies in terms of accuracy and safety. Consequently, the safety level of these design rules is not homogeneous throughout their own field of application, as well as in comparison between different rules. Safety is regulated by partial factors for the various loads and resistances, respectively. EN 1990 -Annex D offers a procedure for the reliability assessment of resistance functions, based on a semi-probabilistic approach. However, its application is not straightforward in many cases concerning steel design rules and several additional assumptions are necessary to ensure that a target probability failure is achieved. Moreover, the design rules are calibrated using certain variability values for the relevant parameters, such as material properties, geometric properties and imperfections. It is therefore required to appropriately characterize the statistical distributions of these basic variables in order to comply with the safety assessment procedure. The present research work, carried out in the ...

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Development of a consistent buckling design procedure for tapered columns

Cited by 43 publications

References 8 publications

A full scale experimental study of prestressed stayed columns

A full scale experimental study of prestressed stayed columns

General Method for the fire design of tapered steel columns: Out‐of‐plane flexural buckling

13.02: Safety assessment across modes driven by plasticity, stability and fracture

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