Buckling resistance of steel H-section beam–columns: In-plane buckling resistance

Giżejowski, M.; Stachura, Z.; Szczerba, Radosław; Gajewski, Marcin

doi:10.1016/j.jcsr.2019.03.002

Cited by 13 publications

(19 citation statements)

References 35 publications

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“…The base model was studied and its details were presented and discussed in the authors ori ginal paper of Gizejowski et al (2019a). In the following, the proposed model based on a linear combination of elementary resistance utilisation ratios is called the refined analytical formulation (RAF).…”

Section: Brief Description Of Proposed Modelmentioning

confidence: 99%

“…To assess the compression resistance of the considered kind of columns the general Ayrton-Perry approach is adopted. This approach dating from XIX century (Ayrton & Perry 1886), after many modifications, was inserted into contemporary design provisions (EN 1993(EN 1-1:2005 and used by many authors (Szalaj & Papp 2010;Szalaj 2017;Giżejowski et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…For the buckling resistance of H-section beam-columns, the degrading effect of imperfections, as well as the effect of inelastic stress redistributions across the sections and the member length were suitably included in the proposed formulation. For evaluating the in-plane buckling resistance of H-section beamcolumns, the amplified second-order formulation developed introduced the model parameters which were calibrated (Gizejowski et al 2019a). Since the developed approach would rather be considered as general but model parameters were calibrated for H-section beam-columns, it needs to be verified when postulated to be used in the buckling resistance prediction of I-sec tion beam-columns for which h/b > 1.2.…”

Section: Introductionmentioning

confidence: 99%

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Modern Trends in Research on Steel, Aluminium and Composite Structures

Giżejowski¹,

Kozłowski²,

Chybiński³

et al. 2021

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involvement in the organisation of the 14th International Conference of Metal Structures is perceived by me as a distinction, but also as a proof of trust in the University. This activity fits perfectly the University mission to educate at all levels of higher education and in lifelong learning programs in close connection with scientific and research development. Nowadays, Poznan University of Technology offers education at 9 fac ulties, covering a total of 33 fields of study. Nearly 16,000 students study here and over 1,300 academic teachers cater to their education. The didactic offer of Poznan University of Tech nology covers the most important fields related to modern technology with a recently launched program in Artificial Intelligence; it is also well adapted to the requirements of both domestic and foreign employers. High-quality scientific research is an integral element of Poznan University of Technology strategy, characterized by scientific achievements of its employees who published more than 2,000 scientific contributions: highly ranked articles, monographs, textbooks and other publications. The total number of PUT Library collections is over 450,000 volumes. Among numerous achievements, the University is proud of the H2020 Marie Sklodowska-Curie Global Fellowships and ERC grants. Furthermore, our sci entists are among the authorities of the Polish Academy of Sciences (9 representatives) and are also members of numerous international scientific societies. According to Shanghai Rank ing 2020 edition in disciplines, PUT was classified among the best 400 universities in the world in Mechanical Engineering. Also, we are ranked by students as the most popular university in Poland according to the Ministry of Science and Higher Education in the 2020/2021 academic year.Owing to EU funding, recent years have introduced the development of research infrastruc ture at the Warta university campus. In 2020 our University also became a leader of European University EUNICEa project funded by the European Commission with a budget of more than 6 million EUR. Our university consortium partners originate from Belgium, Germany, France, Finland, Italy and Spain. EUNICE's main goal is to build a common European Uni versity of the future, and prepare its structure and management design within 3 years. EUNICE is aspiring to provide a high-quality digital learning, offering flexible and multidis ciplinary studies, as well as opportunities for students and staff for international exchange and networking. EUNICE will develop modern and innovative pedagogical methods and provide enhanced student services, in terms of enrolment, recognition, student counselling and guid ance aimed at boosting the employability of all students. Just recently, PUT was also granted by the European Commission a follow-up scientific project REUNICE. This H2020 strategic project for the European University Alliance EUNICE aims at aligning its education, research and innovation strategies through an ambitious and transformative agenda.Therefore, I am ...

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Section: Brief Description Of Proposed Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modern Trends in Research on Steel, Aluminium and Composite Structures

Giżejowski¹,

Kozłowski²,

Chybiński³

et al. 2021

View full text Add to dashboard Cite

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“…Depending upon the values of the section inertia moments ratio, the moment gradient ratio ψy and an action effects ratio of the dimensionless maximum moment my = My,Ed,max / Mcy,Rd and the dimensionless axial force n = NEd / Nc,Rd (where Mcy,Rd and Nc,Rd are the cross-sectional resistance in bending and compression according to [1], respectively), the form of buckling changes from that of deflecting laterally to predominantly twisting. The experimental evidence and evolution of numerical predictions about the behaviour of steel beam-columns led in the recent decades to the improvement of design methods for the evaluation of the buckling resistance of beam-columns [2,3] and their implementation in the current European code [1]. The application of Eurocode's GM according to clause 6.3.4 of [1] still lacks a sufficient coincidence with the design method based on the interaction equations of clause 6.3.3 of that code.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations of the flexural‐torsional buckling resistance: Steel rolled I‐section beam‐columns under moment gradient

2021

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Beam‐columns of uniform rolled or equivalent welded sections are the member types most commonly used in steel skeletal structures. EN1993‐1‐1 [1] provides two design procedures of such members, one based on the interaction equations for the section resistance and the member buckling resistance, and the other one based on the so‐called General Method (GM) that tends to follow that of Ayrton‐Perry's procedure used for extreme cases of compression without bending and bending without compression. Above cited design procedures yield similar results when the beam‐column is predominantly under bending but sometimes results being away from each other when the beam‐column is predominantly under compression. Recently, a novel version of GM has been proposed [2], providing a tool of more rational design that yields the results from Eurocode 3 interaction equation procedure in both extreme cases. The proposed procedure is based on the Euclidean norm of dimensionless action effects and evaluation of Maquoi‐Rondal imperfection factor interpolated between those for compression without bending and bending without compression. This analytical procedure was verified with a wide range of advanced numerical simulations incorporating geometrical and material imperfections (residual stresses). In order to validate the accuracy of the proposed procedure, an experimental study on the buckling resistance of rolled I‐section beam‐columns was carried out the results of which are presented in this paper. Firstly, an overview of the experimental programme carried out on subframe specimens is given and then followed by the summary of measurements of deformations as well as global load vs. displacement characteristics for selected specimens. Finally, an assessment of the beam‐column buckling resistance, experimental vs. predicted by Eurocode 3 interaction equations procedure, is presented and conclusions with regard to the preliminary validation exercise are drawn.

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“…This approach dating from XIX century, after many modifications, was inserted into contemporary design provisions [4] and used by many authors (comp. [11], [12], [13]). The stress criterion, in which the maximum stress was equated to the yield stress f y in the most stressed section, was the condition from which the allowable compressive force was obtained.…”

Section: Introductionmentioning

confidence: 99%

Design Recommendations of Steel Compressed Columns of Variable Cross Sections

Marcinowski¹,

Kołodziej

Błażejewski

2021

ce papers

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Steel columns of hollow cross‐sections being the body of revolution and simply supported at their ends are considered in the paper. Columns of such shapes are recently very frequently proposed by architects of public facilities such as airports, entertainment halls and other objects encountered in engineering practice. The provisions of the EN 1993 standard do not provide for direct procedures that can be used when designing such columns. In this paper authors present the comparatively simple procedure which can be used by designers of steel columns of such shapes. The value of critical force required in the procedure was derived for columns of variable cross section by means of Mathematica™ system. The closed formulae were obtained for a rod with a certain, predefined geometry being the surface of revolution. To this end the Rayleigh quotient in the first form resulting from the energy criterion of stability was used and the half‐wave sine function was adopted to describe the buckling form. Critical forces obtained by means of derived formulae were compared with numerical solutions. To assess the compression resistance of considered rods the general Ayrton‐Perry approach was applied and bow imperfection with assumed amplitude was used in the analysis. Amplitudes of these initial imperfections can be chosen in correspondence to fabrication quality assumed in advance. An example inserted in the paper confirms the effectiveness of the proposed procedure. Formulas for allowable compressive force derived by the authors and presented in the paper can be treated as a measure of compressive resistance and used by engineers designing columns of the considered shape.

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Buckling resistance of steel H-section beam–columns: In-plane buckling resistance

Cited by 13 publications

References 35 publications

Modern Trends in Research on Steel, Aluminium and Composite Structures

Modern Trends in Research on Steel, Aluminium and Composite Structures

Experimental investigations of the flexural‐torsional buckling resistance: Steel rolled I‐section beam‐columns under moment gradient

Design Recommendations of Steel Compressed Columns of Variable Cross Sections

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