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Table 13 Maximum displacement and relative displacement results of shaking table test.

From: Experimental Seismic Structural Performance Evaluations of RC Columns Strengthened by Stiff-Type Polyurea

Specimen

Shaking table (mm)

Column head (mm)

Relative displ. (mm)

Range of relative displ. (mm)

Ratio

C-RC

136.55

139.97

12.96

24.06

1.00

− 103.39

− 107.46

− 11.10

C-PU

112.84

118.37

8.59

15.82

0.66

− 116.26

− 117.86

− 7.23

C-GFPU

127.56

133.14

7.43

12.40

0.52

− 107.72

− 107.36

− 4.97

R-RC

134.00

140.17

7.49

12.41

1.00

− 105.40

− 105.96

− 4.92

R-PU

134.59

138.86

5.57

7.63

0.65

− 105.10

− 104.55

− 2.06

R-GFPU

134.49

137.41

4.92

6.71

0.54

− 104.75

− 104.70

− 1.79

  1. RC: non-strengthened, C-: circular column, R-: rectangular column.