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

Nie, Yuhan; Wei, Yang; Huang, Linjie; Liu, Ying; Dong, Fenghui

doi:10.1186/s10086-021-01968-6

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Structural parameters of the original bamboo columns

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

Specimen number	Theoretical outer diameter D_t/mm	Theoretical inner diameter d_t/mm	Theoretical thickness c_t	Cross-sectional area A/mm²	Slenderness ratio λ	Nominal slenderness ratio ‾λ	Diameter–thickness ratio ξ
B04090-1	89.03	71.13	17.90	2251.49	14.04	13.98	4.97
B04090-2	91.63	72.00	19.63	2522.02	13.73	13.98	4.67
B04090-3	88.43	70.25	18.18	2265.02	14.17	13.98	4.87
B04100-1	101.43	82.63	18.80	2717.59	12.23	12.32	5.39
B04100-2	99.80	80.68	19.13	2710.87	12.47	12.32	5.22
B04100-3	101.55	81.73	19.83	2853.69	12.27	12.32	5.12
B04110-1	108.00	87.95	20.05	3085.67	11.49	11.52	5.39
B04110-2	108.86	86.50	22.36	3431.24	11.51	11.52	4.87
B04110-3	108.73	85.55	23.18	3536.12	11.57	11.52	4.69
B08090-1	88.38	69.38	19.00	2354.03	28.48	27.43	4.65
B08090-2	92.00	76.00	16.00	2111.15	26.82	27.43	5.75
B08090-3	91.63	75.23	16.40	2149.12	26.99	27.43	5.59
B08100-1	101.25	82.13	19.13	2754.43	24.55	24.26	5.29
B08100-2	101.75	85.05	16.70	2450.10	24.13	24.26	6.09
B08100-3	101.75	85.38	16.38	2406.59	24.09	24.26	6.21
B08110-1	111.63	95.30	16.33	2653.11	21.80	21.84	6.84
B08110-2	111.31	94.71	16.60	2686.07	21.89	21.84	6.71
B08110-3	111.50	95.13	16.38	2657.38	21.83	21.84	6.81
B12090-1	88.33	67.40	20.93	2559.26	43.20	42.03	4.22
B12090-2	88.25	71.45	16.80	2107.19	42.27	42.03	5.25
B12090-3	91.50	74.80	16.70	2181.22	40.61	42.03	5.48
B12100-1	101.70	85.38	16.33	2398.61	36.15	36.35	6.23
B12100-2	101.75	85.38	16.38	2406.59	36.14	36.35	6.21
B12100-3	100.38	83.43	16.95	2446.84	36.78	36.35	5.92
B12110-1	111.38	94.75	16.63	2691.42	32.83	33.00	6.70
B12110-2	111.88	94.45	17.43	2823.67	32.78	33.00	6.42
B12110-3	111.25	91.05	20.20	3209.50	33.39	33.00	5.51
B16090-1	88.88	65.08	23.80	2877.71	58.10	57.58	3.73
B16090-2	88.30	68.30	20.00	2459.87	57.33	57.58	4.42
B16090-3	88.38	68.28	20.10	2472.96	57.31	57.58	4.40
B16100-1	100.00	82.05	17.95	2566.52	49.48	50.27	5.57
B16100-2	98.53	76.65	21.88	3009.61	51.27	50.27	4.50
B16100-3	100.35	79.18	21.18	2985.65	50.07	50.27	4.74
B16110-1	108.60	84.88	23.73	3605.13	46.43	46.32	4.58
B16110-2	108.38	86.20	22.18	3388.76	46.22	46.32	4.89
B16110-3	108.75	85.33	23.43	3570.58	46.30	46.32	4.64

For specimen of 90 mm nominal diameter, the average diameter–thickness ratio was 4.8 and average section area was 2360 mm². Similarly, for the 100 mm nominal diameter group, the statistics were 5.5 and 2642 mm². For the 110 mm group, statistics were 5.7 and 3112 mm², respectively

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