Abstract
Uniform hazard spectrum (UHS) has been used in performing seismic Probabilistic Safety Assessment for existing important structures and facilities. The objective of this paper is to discuss basic characteristics of the UHS and to compare the UHS and design spectrum. UHS are evaluated for sites in Korea where all seismic sources are area-source models, and we clarify the differences between the UHS and design spectra based onthe conventional methods in a case where simple seismic sources models are employed.
