Study on Quasi-Static Loading Protocols considering the Action Characteristics of Long-Period Ground Motions

Table 2

The graded cycle amplitudes and corresponding cycle numbers.

Grade		①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
Graded cycle amplitude (×δy)		1	1.3	1.6	1.9	2.2	2.5	2.8	3.1	3.4	4
Cycle number	SDOF system	5	8	6	4	3	1	1	0	1	1
	MDOF system	7	12	9	7	4	2	2	1	2	1