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Pregled bibliografske jedinice broj: 766883

Analytical buckling of slender circular concrete-filled steel tubular columns with compliant interfaces


Schnabl, Simon; Jelenić, Gordan; Planinc, Igor
Analytical buckling of slender circular concrete-filled steel tubular columns with compliant interfaces // Journal of constructional steel research, 115 (2015), 252-262 doi:10.1016/j.jcsr.2015.08.035 (međunarodna recenzija, članak, znanstveni)


Naslov
Analytical buckling of slender circular concrete-filled steel tubular columns with compliant interfaces

Autori
Schnabl, Simon ; Jelenić, Gordan ; Planinc, Igor

Izvornik
Journal of constructional steel research (0143-974X) 115 (2015); 252-262

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Buckling; concrete-filled; steel; tube; CFST; compliant; slip; analytical solution; layers

Sažetak
This paper presents an efficient mathematical model for studying the global buckling behavior of concrete-filled steel tubular (CFST) columns with compliant interfaces. The present mathematical model is used to evaluate exact critical buckling loads and modes of CFST columns for the first time. The results prove that the presence of finite interface compliance may significantly reduce the critical buckling load of CFST columns. A good agreement between analytical and experimental buckling loads of circular CFST columns is obtained if at least one among longitudinal and radial interfacial stiffnesses is high. The design methods compared in the paper give conservative results in comparison with the experimental results and analytical results for almost perfectly bonded layers. The parametric study reveals that critical buckling loads of CFST columns are very much affected by the diameter-to-depth ratio and concrete elastic modulus. Moreover, a material nonlinearity has a pronounced effect for short CFST columns, and a negligible effect for slender ones.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti



POVEZANOST RADA


Projekt / tema
114-0000000-3025 - Unapređenje točnosti nelinearnih grednih elemenata s neograničenim 3D rotacijama (Gordan Jelenić, )
13.05.1.3.06
HRZZ-IP-2013-11-1631 - Aproksimacija ovisna o konfiguraciji u nelinearnoj analizi konstrukcija metodom konačnih elemenata (Gordan Jelenić, )

Ustanove
Građevinski fakultet, Rijeka

Autor s matičnim brojem:
Gordan Jelenić, (259682)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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