Naslov
Structural stability analysis of reticulated dome

Autori
Sviben, Jan ; Uroš, Mario ; Lazarević, Damir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the IASS Annual Symposium 2016 “Spatial Structures in the 21st Century” / K. Kawaguchi, M. Ohsaki, T. Takeuchi - Tokyo, 2016

Skup
IASS 2016 Tokyo Spatial structures in the 21st century

Mjesto i datum
Tokyo, Japan, 26.09.2016. - 30.09.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Stability ; Geometric imperfections ; Critical force ; Nonlinear analysis

Sažetak
This paper deals with stability analysis of a single layer reticulated ultralight dome and the influence of various geometrical imperfections on the load capacity of the structure. Amplitude and the shapes of imperfections are not initially known, therefore, properly scaled critical buckling modes are used as initial imperfections (Lazarevic, Andelic and Uros [3]). Except geometric nonlinearity, material nonlinearity is also used because of the high element stresses. A single layer aluminium dome with triangular pattern is studied. The numerical simulations are performed on the spatial model using geometrical and material nonlinear dynamic analyses with large displacements and small strains. Two types of imperfections are used, which correspond to the first positive eigenvector and the deformed shape from the dead weight. There are two sets of amplitudes defined for each type of imperfection (5 and 10 cm). As a result, the equilibrium curves with precritical and postcritical regions are obtained.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA