Sample 1 | Sample 2 | Sample 3 | Sample 4 | ||||||||
class of loading /kN | deflection /mm | stiffness reducing factor | class of loading /kN | deflection /mm | stiffness reducing factor | class of loading /kN | deflection /mm | stiffness reducing factor | class of loading /kN | deflection /mm | stiffness reducing factor |
20 | 1.50 | 1.00 | 20 | 2.10 | 1.00 | 20 | 2.10 | 1.00 | 20 | 1.92 | 1.00 |
30 | 2.70 | 0.83 | 30 | 3.48 | 0.91 | 30 | 3.54 | 0.89 | 30 | 3.48 | 0.83 |
40 | 4.56 | 0.66 | 40 | 3.30 | 1.27 | 40 | 4.80 | 0.88 | 40 | 4.50 | 0.85 |
50 | 5.22 | 0.72 | 50 | 5.88 | 0.89 | 50 | 6.12 | 0.86 | 50 | 5.40 | 0.89 |
60 | 6.78 | 0.66 | 60 | 7.80 | 0.81 | 60 | 8.10 | 0.78 | 60 | 6.78 | 0.85 |
70 | 7.80 | 0.67 | 65 | 14.10 | 0.48 | 65 | 14.10 | 0.48 | 70 | 15.60 | 0.43 |
80 | 22.20 | 0.27 | - | - | - | 68 | 20.52 | 0.35 | - | - | - |
84 | 25.92 | 0.24 | - | - | - | - | - | - | - | - | - |