Sensitivity Analysis of SDOF Structure Parameters on Damage Ratio Coefficient

Abstract eng:
The structure response parameters (natural period, elastic base shear capacity, post-elastic stiffness and damping) of an SDOF model are obtained by analysing a large number of non-linear numeric structure responses using earthquakes of different intensities as load input. An MLP neural network is used to model the relationship between the structure response parameters of the SDOF model and the damage ratio coefficient. A sensitivity analysis procedure is perfomed using the trained neural network to determine the influence of the individual structure response parameters on the damage level of a structure based upon an earthquake.

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