Abstract

The application of a simple model ( Q-Model) for calculation of nonlinear seismic response history of irregular planar structures has been demonstrated. The model represents the structure by an equivalent SDOF oscillator. Stiffness degradation effects are accounted for through a simple hysteresis model. The Q-Model is evaluated for small-scale test structures in addition to a full-scale hypothetical frame. It is shown that the model exhibits satisfactory performance. The application of the Q-Model, or an approach similar to that, in seismic response computation for three-dimensional irregular structures is briefly discussed.

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