Study on Stability of a New Prestressed SINGLE-Layar Spherical Lattice Shell
Prestressing of lattice shell is realized by cable, and author put forward a new kind of layout: The prestressing has been brought to bear by hoop and radial element of single-layer lattice shell, which avoid cable's effect on architectural purpose. The element has been made to sleeve, and the magnitude of prestressing is dominated by bolt. Article shows an example of K6, K8 single-layer spherical lattice shell, and the prestressing have been exert on partial ribs and hoops. The prestressing has been calculated by element axial force under normal loading. Stability of shells have been studied, and show the deformation satisfy the criteria under normal loading; The ultimate capacity has been improved obviously, loads transfer is rational. The new layout of prestressing is a promising technique.
Z. X. Yin et al., "Study on Stability of a New Prestressed SINGLE-Layar Spherical Lattice Shell", Advanced Materials Research, Vols. 163-167, pp. 2157-2161, 2011