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Table 4 Load at first shear crack, first flexural crack and at failure.

From: Structural Behaviour of Polystyrene Foam Lightweight Concrete Beams Strengthened with FRP Laminates

Group

Specimen

Failure load (kN)

First shear cracking load (kN)

First flexural cracking load (kN)

Percentage Load carried from first crack to failure (%)

Control

CBS

173

70

50

71

CBF

44.2

19

14.5

67.2

Shear groups

Group 1

BGS1

196.7

110

95

51.7

BGS2

217.4

140

105

51.7

BGS3

237.3

165

120

49.4

Group 2

BCS1

207

127

110

46.9

BCS2

223.2

160

125

44

BCS3

259.6

190

150

42.2

Flexural groups

Group 3

BGF1

49.3

20

14.6

70.4

BGF2

56.1

24

17.3

69.1

BGF3

66.1

31

21.5

67.5

Group 4

BCF1

55.8

21

15.5

72.2

BCF2

66.5

26

19.5

70.7

BCF3

75.8

39

27

64.4