Reliability analysis of hyperstatic inclined truss structure

Based on load incremental approach, finite element model of inclined truss structure is established by using Ansys software. Then load factor, unit of effective strength and load increments is obtained by finite element analysis. With a minimum load increment norms and the branch - bound norms of the stage critical strength, the main failure modes of inclined truss structure is educed. Finally the system failure probability of the structure is calculated.