Principal Component and Multiple Regression Analysis for Steel Fiber Reinforced Concrete (SFRC) Beams

International Journal of Concrete Structures and Materials

Table 6 Statistical analysis of shear strength prediction models for high strength SFRC beams with a/d < 2.5 and plain, crimped and hooked fibers (HS-DB-PCH).

Study	V_EXP/V_ANA				AAE	λ ²	R ²	Rating^b (1–9)
Study	Mean	SD	COV (%)	Confidence^a	AAE	λ ²	R ²	Rating^b (1–9)
Ashour et al. (1992)	2.42	0.92	37.90	0.26	51.3	319.6	0.42	8
Imam et al. (1994)	0.63	0.31	49.78	0.09	122.2	328.4	0.40	9
Khuntia et al. (1999)	1.65	0.44	26.86	0.12	35.5	116.4	0.60	3
Kwak et al. (2002)	0.82	0.25	30.30	0.07	40.9	55.8	0.57	4
Li et al. (1992)	0.88	0.24	26.89	0.07	32.0	29.5	0.69	2
Narayanan and Darwish (1988)	0.99	0.34	33.78	0.09	35.7	63.1	0.48	5
Sharma (1986)	1.70	0.58	34.04	0.16	37.2	148.6	0.29	4
Shin et al. (1994)	1.07	0.33	31.36	0.09	30.4	33.6	0.51	9
Proposed Model	1.02	0.29	28.79	0.08	18.1	15.7	0.77	1