Issue 67

M. A. Nasser et alii, Frattura ed Integrità Strutturale, 67 (2023) 319-336; DOI: 10.3221/IGF-ESIS.67.23

Figure 7: Tested specimens after retrofitting.

A NALYSIS OF THE EXPERIMENTAL RESULTS his study presents all the measured test results, such as: (1) crack load; (2) failure load; (3) the load-deflection at midpoint of the specimen; (4) crack patterns; and (5) failure modes. Tabs. 4 and 5 show the experimental results for all the tested specimens.

T

Specimen No.

P i (kN)

P f (kN)

S.S (mm)

D.D (-) 2.13 1.65 1.14 1.71 1.14 1.62 1.58 1.15 1.22

T (kN.mm) 3155.41 5031.36 3846.74 5456.65 3818.48 4225.15 2731.72 2359.86 2130.18

Failure mode

∆ i (mm)

∆ f (mm)

RB1 RB2 RB3 RB4 RB5 RB6 RB7 RB8 RB9

568.11 554.90 490.52 543.80 492.59 591.17 612.35 631.20 653.67

731.39 658.88 764.85 655.21 531.87 649.94 786.46 822.39 758.42

11.53 10.05

16.64 12.21 18.00 16.55 11.61 15.80 22.17 23.83 20.93

54.60 29.02

9.96

119.90

Diagonal shear failure mode

12.60

19.71 64.67 51.17 32.23 36.39 61.89

9.64

12.53 15.79 13.88 16.13

Table 4: Experimental results for all specimens.

Specimen No.

P f / P f B1 %

S.S/S.S % 100.00

D.D/D.D %

T/T RB1 %

∆ f / ∆ f B1 % 100.00

RB1 RB2 RB3 RB4 RB5 RB6 RB7 RB8 RB9

100.00

100.00

100.00 159.45 121.91 172.93 121.01 133.90

97.67 86.34 95.72 86.71

73.38

53.15

77.46 53.52 80.28 53.38 76.06 74.18 53.99 57.28

108.17

219.60

99.44 69.77 94.95

36.10

118.44

104.06 107.79 111.11 115.06

93.72 59.03 66.65

133.23 143.21 125.78

86.57 74.79 67.51

113.35

Table 5: Experimental results compared to the control specimen (RB1).

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