Accuracy Assessment of Shake Table Device on Strong Earthquake Output

Table 2

Shake table performance assessment strategy based on the double parameter indices.

Performance index 1		Correlation coefficient
Performance index 2		Level 1 (C1 <c < 1)	Level 2 (C2 <c ≤ C1)	Level 3 (C3 <c ≤ C2)	Level 4 (c ≥ C3)
Energy-TH index	Level 1 (b ≤ B1)	Case x1…	Case x5…	Case x9…	Case x13…
	Level 2 (B1 <b ≤ B2)	Case x2…	Case x6…	Case x10…	Case x14…
	Level 3 (B2 <b ≤ B3)	Case x3…	Case x7…	Case x11…	Case x15…
	Level 4 (B3 < b)	Case x4…	Case x8…	Case x12…	Case x16…

B1∼B3 are the reference limit values of index and C1∼C3 are the reference limit values of index , which are determined based on the shake table device.