Instability Characteristic of Space Frames by Lattice Pattern

Static structure Instability problem of space frame structure is directly connected with the momentary collapse of the entire structure. To neglect to examine the problem may cause huge losses in terms of human lives and property. So, the problem of understanding instability behaviour is indispensable step at the space frame structure.

In this study, we grasp collapse mechanism of space frame in order to investigate static structure instability characteristics of space frame according to geometric form. Analysis models are Star dome, Parallel lamella dome and 3Way grid dome. These are analyzed instability behaviour characteristics according to loading condition and imperfection shape.