FREE VIBRATION ANALYSIS OF A MULTI-STOREY SPACE FRAME SYSTEM

Abstract

This paper carries out the vibration analysis of a high-storey space frame system. The finite element formulations are based on classical space frame theory and the finite element method. Then the calculation program is established in the MATLAB environment. The computed results are compared with those of exact solutions to demonstrate the accuracy of the program. In addition, we use the artificial neural network to predict the natural frequencies of the structure. The parameter study is conducted to evaluate the effect of geometrical coefficients and boundary conditions on vibration responses of the structure. These numerical results are a good basis to develop many complicated problems dealing with artificial intelligence (AI) to predict mechanical responses of structures.