Due to the low specific strength of bamboo oriented strand boards compared with the commonly used wooden building materials, reasonable and novel cross-section designs of bamboo columns fabricated from bamboo oriented strand boards as structural members were investigated. An axial compression experiment was carried out on full-scale bamboo columns to characterize the ultimate behaviors under a concentric load. The ultimate bearing capacities of solid, hollow and five-core columns of the same height were not obviously different from each other. The columns with a larger slenderness ratio showed lower ultimate loads and higher axial deflections. The short columns experienced failure due to material crushing, and the long columns experienced a combination of material crushing and inelastic buckling. The empirical equations for predicting the ultimate bearing capacity for wooden columns showed applicability for bamboo columns. Non-linear finite element modeling analyses were carried out to validate the experimental results, and a satisfactory agreement was found in the failure modes and ultimate bearing capacity.

中文翻译：

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竹定向刨花板制造柱的轴向压缩行为

针对竹定向刨花板与常用木质建筑材料相比强度较低的问题，研究了以竹定向刨花板为结构构件的竹柱截面设计合理新颖。在全尺寸竹柱上进行了轴向压缩实验，以表征同心载荷下的极限行为。相同高度的实心柱、空心柱和五芯柱的极限承载力无明显差异。具有较大长细比的柱显示出较低的极限载荷和较高的轴向挠度。短柱由于材料破碎而失效，而长柱则经历了材料破碎和非弹性屈曲的组合。预测木柱极限承载力的经验方程显示了竹柱的适用性。进行了非线性有限元建模分析以验证实验结果，并在失效模式和极限承载力方面发现了令人满意的一致性。