Fold and Cusp Catastrophe Models of Symmetric and Antisymmetric Instability of the Circle Arc Double Arculated Arch Under Radial Uniform Load
Pan Yue, Liu Ruichang
(Qingdao Institure of Architecture and Enginering)

Abstract: Fold and cusp catastrophe models of symmetric and antisymmetric instability of the circle arc double arcuated arch, under radial uniform load, are established. The models may
very likely discribe various properies of the two instable process, calculate instable critical load, and give preliminary relation of bended route of the arch with the load.
Keywords: circle arc double arcuated arch, instable critical load, fold catastrophe, cusp catastrophe