Evaluation of structural dynamic responses by stochastic finite element method

The uncertainties associated with structural parameters and dynamic loading are identified and discussed. Structural parametric uncertainties are trea ted as random variables and dynamic wind load is simulated as a random proc ess. Dynamic wind-induced responses of structures with parametric uncertain ties are investigated by using stochastic finite element method. The formul as for structural dynamic reliability analysis considering the randomness o f structural resistance and loading are proposed. Two numerical examples of high-rise structures are presented to illustrate the proposed methodology. The calculated results demonstrate that the variation in structural parame ters indeed influences the dynamic response and the first passage probabili ty evaluation of structures.