Tehnički vjesnik, Vol. 18 No. 4, 2011.
Pregledni rad
Buckling analysis of concrete spherical shells
Ivana Mekjavić
; University of Zagreb, Faculty of Civil Engineering, Kačićeva 26, 10000 Zagreb, Croatia
Sažetak
This paper presents a buckling analysis for several notable concrete thin shells around the world. An approach which takes into account the large deflection and plasticity effects was performed using Sofistik software to estimate the buckling load. A geometrically non-linear analysis of these structures with and without geometrical imperfections was performed. To take into account the possible plastification of the material a materially non-linear analysis was performed simultaneously with the geometrically non-linear analysis. The buckling analysis of concrete spherical shells shows that including only one kind of non-linearity does not give a realistic situation and only their combination results in the decreasing of ultimate failure load.
Ključne riječi
buckling analysis; concrete shells; spherical shells; geometrically non-linear analysis; materially non-linear analysis
Hrčak ID:
75414
URI
Datum izdavanja:
27.12.2011.
Posjeta: 6.078 *