Pregled bibliografske jedinice broj: 498983
Postbuckling Behavior of Shallow Lattice Dome
Postbuckling Behavior of Shallow Lattice Dome // Extended Abstracts International Symposium of the International Association for Shell and Spatial structures (IASS) / Zhang, Q. ; Yang, L. ; Hu, Y. (ur.).
Shanghai: China Architecture & Building Press, 2010. str. 282-283 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 498983 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Postbuckling Behavior of Shallow Lattice Dome
Autori
Lazarević, Damir ; Uroš, Mario ; Gidak, Petra
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Extended Abstracts International Symposium of the International Association for Shell and Spatial structures (IASS)
/ Zhang, Q. ; Yang, L. ; Hu, Y. - Shanghai : China Architecture & Building Press, 2010, 282-283
ISBN
978-7-112-12504-3
Skup
International Symposium of the International Association for Shell and Spatial structures (IASS) "Spatial Structures - Temporary and Permanent"
Mjesto i datum
Šangaj, Kina, 08.11.2010. - 12.11.2010
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Lattice Dome; postbuckling behaviour; Arc-Length Method; bracketing technique; current stiffness parameter; imperfection sensitivity
Sažetak
The paper analyzes the postbuckling behavior of a single layered, shallow lattice dome. Equilibrium paths are obtained by the nonlinear finite element method using the geometrically exact beam finite element. The problem is solved by using the well known version of the Newton–Raphson Method, the Arc-Length Method. The constraint condition according to Riks is adopted. The bracketing technique, Bergan’s current stiffnes parameter and mode injection strategies are applied in order to detect and traverse the critical (especially bifurcation) points. Due to the difficulties and uncertainties near multiple bifurcations, the results from static analysis are further confirmed by a more robust nonlinear transient dynamic analysis using the Hilbert–Hughes–Taylor time stepping scheme (snap–through and snap–back are detected). The shape of the imperfection is treated as a linear combination of buckling modes and several values of extreme amplitudes (up to 50 cm) in a given shape are considered. Based on this approach, the load capacity of a single layered welded dome ˝Krešimir Ćosić˝, erected in Zadar, Croatia, is estimated.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
POVEZANOST RADA
Projekti:
082-1201829-2166 - Nestandardni modeli građevinskih konstrukcija (Lazarević, Damir, MZOS ) ( CroRIS)
Ustanove:
Građevinski fakultet, Zagreb
