The results show that the variation of the stochastic variables has a different influence to the structural responses of cable-stayed Bridges.

Based on the outcomes of study on the dynamic security region (DSR), a transient instability probability model combining discrete and continuous stochastic variables is proposed.

Based on the theory of stochastic finite element, the structural parameters of frame shear structure including stiffness and mass and damping are simulated to be stochastic variables.