Probability of Dangerous State of Compound Flanged Beam with Riveted Shelves in Case of Plane Form Stability Loss under Action of Random Loads and Initial Deflections

摘要

We analyze operation of compound flanged beam with riveted shelves loaded by random external loads. Prior to elastic assemblage, the beam had random initial deflections of shelves. The dependencies are obtained for assessment of probability of critical state of the beam in case of plane form stability loss under action of random shear loads, which are generated in rivets (weld spots) between the beam wall and shelves. An example of the beam critical state, probability assessment is provided for the case of random initial displacements of beam shelves.