engleski

Methods for evaluation of seismic drift in R/C frames

If the seismic input is sufficiently strong to cause yielding in a structure, maximum displacements rather than maximum stresses represent the proper design criteria. It is usually assumed that elastic frame analysis gives a poor estimate of non-linear drifts and that some form of non-linear seismic analysis is required. Three different methods for the evaluation of the expected maximum displacements and interstory drifts during seismic events are evaluated and compared. Analyzed methods are: (a) Member-by-member non-linear analysis; (b) N2 method and (c) Linear elastic analysis. Results obtained by these three methods on model structures are compared, evaluated and the relevant conclusions are drawn.

seizmički pomaci; nelinearna analiza; N2-metoda; metoda linearnih pomaka

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