Citation

Krishnan S, Muto M. J. Earthq. Eng. 2013; 17(5): 673-698.

Copyright

(Copyright © 2013, Informa - Taylor and Francis Group)

DOI

10.1080/13632469.2013.771587

PMID

unavailable

Abstract

The seismic response of two tall steel moment frame buildings and their variants is explored through parametric nonlinear analysis using idealized sawtooth-like ground velocity waveforms, with a characteristic period (T), amplitude (peak ground velocity, PGV), and duration (number of cycles, N). Collapse-level response is induced only by long-period, moderate to large PGV ground excitation. This agrees well with a simple energy balance analysis. The collapse initiation regime expands to lower ground motion periods and amplitudes with increasing number of ground motion cycles.