Study on the Bond-Slip Performance of CFSSTs Based on Push-Out Tests

Table 4

Experimental results and corresponding range analysis.

Specimen number	Influence factor			(kN)	(MPa)
			(MPa)
CFST1	9.24	30	30	19.32	0.0986
CFST2	9.24	37.5	40	26.39	0.1327
CFST3	9.24	50	50	32.57	0.1616
CFST4	13.86	30	40	49.59	0.1610
CFST5	13.86	37.5	50	39.82	0.1275
CFST6	13.86	50	30	53.27	0.1682
CFST7	18.48	30	50	72.18	0.1719
CFST8	18.48	37.5	30	65.48	0.1537
CFST9	18.48	50	40	50.36	0.1166
	78.28	141.09	138.07	T = 514.85	—
	142.68	131.69	126.34
	188.02	136.20	144.57
	109.74	9.40	18.23
	0.3929	0.4315	0.4205	—	T = 1.0535
	0.4567	0.4139	0.4103
	0.4422	0.4464	0.4610
	0.0638	0.0325	0.0507
CFST10	13.86	30	C40	105.87	0.3437

Note. , , and represent the various factor values (levels) ranging from small (low) to large (high); j represents various factors, R_j represents the range of the data, and T stands for the sum of the data. For example, represents the sum of the values of the test parameters corresponding to level “1” of the influence factors in the column “j”.