A wavelet-based approach for truncating pulse-like records

The paper discusses the fast seismic performance assessment of structures using truncated pulse-like ground motion records. It is shown that it possible to truncate a signal novel wavelet-based definition identifies duration predominant velocity pulse. time-history still able efficiently reproduce increased demand near-field records typically produce. Substituting original with signal, can significantly accelerate structural analysis and design. part accelerogram coincides pulse, which identified procedure, previously proposed by authors. Elastic inelastic response spectra nonlinear analyses for SDOF (single-degree-of-freedom) systems are first studied. Subsequently nine-storey steel frame examined in order demonstrate approach on multiple-degree-of-freedom system. found very efficient motions, while also sufficient many not characterized as such.