IASS-IACM 2008 Session: Design-Oriented Modeling of Nonlinear Structures Session Organizer: Bassam IZZUDDIN (Imperial College) -- Keynote Lecture: "Simplified modeling of nonlinear structures - 'Spanning component to system'" by Bassam A. IZZUDDIN (Imperial College) -- " Limit analysis of slabs revisited with finite element models" by Edward MAUNDER, Angus RAMSAY (University of Exeter) -- " Effects of boundary conditions on the non-linear long-term behavior of spherical shallow concrete domes" by Ehab HAMED, Mark A. BRADFORD, R. Ian GILBERT (University of New South Wales) -- "A local failure model for shallow spherical concrete domes subjected to uniform external radial pressure" by Zhen-Tian CHANG, Mark A. BRADFORD, R. Ian GILBERT (University of New South Wales)