Vibration Performance of Bamboo Bundle/Wood Veneer Composite Floor Slabs for Joist-Type Floor Coverings

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Abstract

Bamboo engineering materials are green, high-strength, tough, durable, and structurally safe, and have promising application prospects in various modern green and low-carbon buildings. To investigate the vibration behavior of bamboo-bundle laminated veneer lumber (BLVL) for use in floor slabs, this study designed two kinds of full-scale vibration tests under a pedestrian load: an extraction hammer impact test and a static concentrated load test. The results are expected to provide a theoretical foundation and data to support the application of bamboo bundle veneer laminated composite materials in the construction field. The results showed that the self-oscillation frequency and mid-span deflection of the BLVL composite met the requirements of multiple relevant regulations when used as the structural material of floor slabs. The BLVL floor slab had greater flexural stiffness and better vibration-damping performance than the OSB floor slab. The first-order self-oscillation frequency of the BLVL composite floor slab was 13.769 Hz, the damping ratio of the first three orders of modalities was 1.262–2.728%, and the maximum static deflection in the span of the joist was 0.932 mm under a 1 kN concentrated load. The 1 kN static deflection of the BLVL was reduced by 22.33%, and the root mean square (RMS) acceleration of the walking load response was significantly lower than that of the OSB floor slab. The preparation of BLVL composite materials through homogeneous lamination of bamboo bundle veneer and wood veneer may help to improve the vibration behavior of bamboo–wood structures such as floor slabs and walls.

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APA

Chen, L., Han, S., Li, D., Deng, J., Chen, F., & Wang, G. (2023). Vibration Performance of Bamboo Bundle/Wood Veneer Composite Floor Slabs for Joist-Type Floor Coverings. Buildings, 13(5). https://doi.org/10.3390/buildings13051265

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