—Intensity measure (IM) is a parameter that is used
to scale the records for the time-history analysis of a structure
subjected to seismic loads. It is well known that the accuracy of
the seismic response of the structure depends very much on IM.
This paper presents a study on the use of the inelastic
displacement as IM for the nonlinear time-history analysis. For
the purpose of the study, three reinforced concrete
moment-resisting frame buildings (4-, 10-, and 16-storey high)
designed for Vancouver, Canada were used in the analysis. The
buildings were subjected to the total number of 40 records
scaled to five intensity levels which represent a global ductility
of 1 to 5. Based on the results from the analysis, it was found out
that the inelastic displacement does not have advantage over the
elastic displacement (or the spectral acceleration) as IM.
—Dispersion, elastic displacement, inelastic
displacement, intensity measure.
The authors are with Concordia University, Canada (e-mail:
Cite: Inelastic Versus Elastic Displacement-Based Intensity
Measures for Seismic Analysis, "L. Lin and Y. L. Gao," International Journal of Engineering and Technology vol. 6, no. 6, pp. 476-480, 2014.