Identification of Critical Members in the Progressive Collapse Analysis of Two-Layer Tensegrity Barrel Vaults

Tensegrity structures have a high degree of indeterminacy. Occurrence initial partial failure at one point these can lead to the propagation throughout structure. One influential factors in is starting failure. The first occur member that considered as "critical member" and causes further damage structure, or it has caused minor structure maintain overall stability Identification critical members tensegrity barrel-vaults, due application roof covering meeting halls, passenger terminals, industrial halls aircraft hangars, etc. important effective results preventing occurrence progressive collapse possible damages. Therefore, this paper, two-layer barrel-vaults consisting square simplexes are identified by performing nonlinear dynamic analyzes using Abaqus software. software uses Model Change settings simulate under effects different investigated finally, non-critical introduced. It was found modules closer center longitudinal direction barrel vault show more behavior than other modules. also observed from analysis with maximum stress not among most members.