Overall buckling performance of high strength steel welded I-sections under combined axial compression and bending

• Autorzy: Huang Bin , Zhang Wen-Fu

Identyfikatory

DOI

10.24425/ace.2022.141891

• Języki publikacji: EN

Abstrakty

EN

This paper presents a numerical investigation into the high strength steel (HSS) welded I-section overall buckling performance with respect to the major axis under combined axial compression and bending. The validation of FE models compared with the existing test data to verify the appropriateness of the element division and boundary condition was firstly conducted. In line with the FE arrangement verified, separate 890 numerical models, covering a broader range of eight steel grades (460 MPa, 500 MPa, 550 MPa, 620 MPa, 690 MPa, 800 MPa, 890 MPa and 960 MPa), different overall slenderness and various eccentricities were designated. Subsequently, the comparison of the resistance prediction codified design rules in EN 1993-1-1, ANSI/AISC 360-10 and GB50017-2017 was preferentially operated, by the instrumentality of the normalized axial compression-bending moment curves. The results graphically revealed that, the provision given in ANSI/AISC 360-10 concerned in the present work was the most loose, whereas, the corresponding content set out in EN 1993-1-1 and GB50017-2017 was relatively on the safe side. Taking account of the FE results, the conservative shortcomings of the considered rules in EN 1993-1-1 and GB50017-2017 were further highlighted. Especially, the disparity of EN 1993-1-1 and numerical results was higher to 27%, from the perspective of a definition given in the present work. In contrast, the provision in ANSI/AISC 360-10 yielded a relatively accurate prediction, on average. Based on the numerical program, an alternative formula for the HSS welded I-section beam-columns with a general expression form was sought, which intimately reflected the effect of overall slenderness.

Słowa kluczowe

EN

beam-column connection; axial compression; bending; finite element analysis; high strength steel; overall buckling; welded I-section

PL

połączenie belka-słup; ściskanie osiowe; zginanie; analiza elementów skończonych; stal o wysokiej wytrzymałości; wyboczenie; dwuteownik spawany

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2022
• Tom: Vol. 68, nr 3
• Strony: 369--384
• Opis fizyczny: Bibliogr. 15 poz., il., tab.

Twórcy

autor

Huang Bin

• School of Civil Engineering and Architecture, Nanjing Institute of Technology, Nanjing, China

• https://orcid.org/0000-0002-8413-1280

autor

Zhang Wen-Fu

• School of Civil Engineering and Architecture, Nanjing Institute of Technology, Nanjing, China

• https://orcid.org/0000-0002-0848-4893

Bibliografia

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• [11] X. Yun, L. Gardner, N. Boissonnade, “Ultimate capacity of I-sections under combined loading - Part 1: Experiments and FE model validation”, Journal of Constructional Steel Research, 2018, vol. 147, pp. 408-421, DOI: 10.1016/j.jcsr.2018.04.016.
• [12] European Committee for Standardization (CEN), “Eurocode 3-Design of Steel Structures - Part 1-1: General Rules and Rules for Buildings”, Brussels, 2005.
• [13] AISC, “ANSI/AISC 360-10, Specification for structural steel buildings”, Chicago, 2010.
• [14] Ministry of housing and urban rural development of the people’s Republic of China, “Code for Design of Steel Structures”, China Architecture & Building Press, Beijing, 2018.
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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).