In the context of global sustainable development, the use of natural and renewable bamboo as a building material is of great significance for building engineering. As an important part of bamboo, there is still a lack of systematic research on the effect of bamboo nodes on the mechanical properties of bamboo. In this paper, compression parallel to the grain of the bamboo, bending, tensile parallel to the grain, shear parallel to the grain, compression perpendicular to the grain and tensile perpendicular to the grain tests of an entire bamboo culm of P. edulis bamboo were carried out, and the effects of bamboo nodes on moisture content, bearing capacity and mechanical properties were analyzed. The relationship between the mechanical properties and standardized parameters of the node and internode specimens was established. A conversion method of mechanical properties of the same test type was proposed, and a conversion method among different mechanical properties was proposed. The bamboo was graded by tensile strength parallel to the grain. The results show that bamboo nodes have an obvious effect on the moisture content. Bamboo nodes have different effects on the bearing capacity and mechanical properties of different types of specimens. The mechanical properties of P. edulis bamboo can be predicted by the relationship between the mechanical properties and the standardized parameters and the mechanical property conversion method. The strength classification of P. edulis bamboo can be predicted by standardized parameters.

中文翻译：

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竹节对P. edulis (Phyllostachys Edulis)竹力学性能的影响

在全球可持续发展的背景下，使用天然、可再生的竹材作为建筑材料对建筑工程具有重要意义。作为竹子的重要组成部分，竹节对竹子力学性能的影响还缺乏系统的研究。本文对一整根竹笋进行了与竹子纹理平行的压缩、弯曲、平行于纹理的拉伸、平行于纹理的剪切、垂直于纹理的压缩和垂直于纹理的拉伸试验。对竹子进行了研究，分析了竹节对含水量、承载力和力学性能的影响。建立了节和节间标本的力学性能与标准化参数之间的关系。提出了相同试验类型力学性能的换算方法，提出了不同力学性能之间的换算方法。竹子按与纹理平行的抗拉强度分级。结果表明，竹节对水分含量有明显影响。竹节对不同类型试件的承载力和力学性能有不同的影响。P. edulis的力学性能竹材可以通过力学性能与标准化参数的关系和力学性能换算方法进行预测。P. edulis竹的强度等级可以通过标准化参数进行预测。