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Official Journal of the Japan Wood Research Society

Table 4 Stability coefficient of the original bamboo columns

From: Influence of slenderness ratio and sectional geometry on the axial compression behavior of original bamboo columns

Slenderness ratio λ

Diameterthickness ratio ξ

Ultimate bearing capacity of the long column Pl/kN

Ultimate bearing capacity of the short column Ps/kN

Experimental stability coefficient

Calculated stability coefficient

Calculated value/Experimental value

14.04

4.97

109.25

130.36

0.84

0.82

0.98

13.73

4.67

100.29

146.03

0.69

0.80

1.17

14.17

4.87

98.98

131.14

0.75

0.81

1.07

12.23

5.39

115.67

157.35

0.74

0.87

1.18

12.47

5.22

137.13

156.96

0.87

0.85

0.98

12.27

5.12

135.13

165.23

0.82

0.85

1.03

11.49

5.39

171.1

171.61

0.99

0.88

0.88

11.51

4.87

169.19

198.74

0.85

0.83

0.98

11.57

4.69

172.48

179.41

0.96

0.82

0.85

28.48

4.65

98.98

136.30

0.73

0.67

0.93

26.82

5.75

91.94

122.24

0.75

0.77

1.02

26.99

5.59

93.87

124.43

0.75

0.75

0.99

24.55

5.29

109.04

159.48

0.68

0.75

1.10

24.13

6.09

113.34

141.86

0.80

0.82

1.03

24.09

6.21

122.73

139.34

0.88

0.84

0.95

21.80

6.84

165.52

189.61

0.87

0.93

1.07

21.89

6.71

156.29

172.67

0.91

0.92

1.01

21.83

6.81

160.91

173.46

0.93

0.93

1.00

43.20

4.22

71.09

148.18

0.48

0.51

1.07

42.27

5.25

72.05

122.01

0.59

0.57

0.96

40.61

5.48

71.07

126.29

0.56

0.60

1.07

36.15

6.23

84.44

138.88

0.61

0.71

1.16

36.14

6.21

98.05

139.34

0.70

0.71

1.00

36.78

5.92

97.92

141.67

0.69

0.67

0.98

32.83

6.70

158.25

197.68

0.80

0.79

0.99

32.78

6.42

169.84

188.14

0.90

0.76

0.85

33.39

5.51

155

196.55

0.79

0.68

0.86

58.10

3.73

56.96

166.62

0.34

0.35

1.03

57.33

4.42

50.06

142.43

0.35

0.37

1.06

57.31

4.40

62.05

143.18

0.43

0.37

0.86

49.48

5.57

79.19

148.60

0.53

0.51

0.95

51.27

4.50

73.93

174.26

0.42

0.44

1.04

50.07

4.74

74.58

172.87

0.43

0.46

1.07

46.43

4.58

98.71

208.74

0.47

0.49

1.05

46.22

4.89

101.18

196.21

0.52

0.51

0.99

46.30

4.64

96.24

206.74

0.47

0.50

1.07

Average

     

1.01

Mean absolute error

     

0.06