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Table 8 Statistical analysis of shear strength prediction models for low strength SFRC beams with a/d ≥ 2.5 and hooked fibers (LS-SB-H).

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

Study

V EXP /V ANA

AAE

λ 2

R 2

Ratingb (1–8)

Mean

SD

COV (%)

Confidencea

Imam et al. (1994)

1.39

0.67

48.32

0.17

37.6

99.3

0.38

6

Khuntia et al. (1999)

1.68

1.03

61.18

0.26

33.3

203.4

0.24

5

Kwak et al. (2002)

1.24

0.68

54.27

0.17

25.6

97.2

0.42

4

Li et al. (1992)

1.11

0.70

62.61

0.18

37.8

92.5

0.10

7

Narayanan and Darwish (1988)

1.32

0.72

54.08

0.18

22.9

118.7

0.40

2

Sharma (1986)

1.39

1.00

71.81

0.26

35.1

163.4

0.05

3

Proposed model

1.34

1.78

133.34

0.46

46.3

153.5

0.54

1

  1. aα = 0.05, b 1(excellent) and 7(worst).