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Table 3 Lateral load–displacement parameters.

From: Flexural Strengthening of RC Columns with Low Longitudinal Steel Ratio using GFRP Bars

Specimen

Peak force, (kN)

Increase in peak force (%)

Displacement at peak force, (mm)

Bending moment, (KN m)

\({\text{P}}_{peak}^{ + }\)

\({\text{P}}_{peak}^{ - }\)

Average

\(\Delta_{peak}^{ + }\)

\(\Delta_{peak}^{ - }\)

Average

Experimental

Analytical

Errora (%)

NS

19.21

− 18.94

19.07

–

19.87

− 19.72

19.79

21.9

24.1

9.8

S08

23.41

− 22.58

22.99

20

20.22

− 20.48

20.35

26.4

28.2

6.6

S10

26.12

− 25.69

25.90

35

20.81

− 20.53

20.67

29.8

31.3

5.1

S12

27.85

− 27.34

27.59

44

24.72

− 24.58

24.65

31.7

34.4

8.4

  1. a\({\text{Error}}\;\left( \% \right) = {{\left( {{\text{M}}_{\text{Analytical}} - {\text{M}}_{\text{Experimental}} } \right)} \mathord{\left/ {\vphantom {{\left( {{\text{M}}_{\text{Analytical}} - {\text{M}}_{\text{Experimental}} } \right)} {{\text{M}}_{\text{Experimental}} \times 100}}} \right. \kern-0pt} {{\text{M}}_{\text{Experimental}} \times 100}}\).