R/C Frame Models: Observed Seismic Response

Two sets of simulated earthquake tests carried out on 10-story, three-bay reinforced concrete frame models are discussed. Salient features of the test structures and the base motions are presented. A perspective of the structural response during the course of dynamic test runs is provided by the analysis of 10 nondimensional observation parameters. Remarkable similarities between the recorded response of the test structures having the same base motion intensities during the test runs are pointed out. It is concluded that the same base motion will produce basically the same response regardless of differences in the previous loading histories, provided that all of the previous loadings had intensities less than or equal to that of the loading under consideration.