泡桐木复合夹芯板面内轴向承载能力分析

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回顾了泡桐木复合夹芯板面内轴向承载能力试验,提出了面内轴向荷载作用下泡桐木复合夹芯板承载能力参考限值;针对既有承载力计算方法的不足,运用经典夹层结构复合材料理论,讨论了夹芯板的稳定性及参数变化对其的影响,给出了面内轴向荷载作用下轻质泡桐木复合夹芯板承载能力的计算方法,阐述了泡桐木复合夹芯板的破坏机理。分析表明,取基于弯曲和剪切共同作用的弹性屈曲荷载作为泡桐木复合夹芯板轴向承载能力的限值是比较合适的;芯材拼缝的设计、施工工艺是该夹层结构发挥承载能力的关键因素;与传统的墙板或墙体比较,泡桐木复合夹芯板具有显著的质轻而承载力高的特点。 In this paper, the in-plane bearing capacity of paulownia wood composite sandwich panel is reviewed. The reference limit of bearing capacity of paulownia wood composite sandwich panel under in-plane axial load is proposed. According to the deficiency of existing bearing capacity calculation method, Structure composite material theory, the influence of the stability of sandwich panel and the change of parameters was discussed. The calculation method of the bearing capacity of lightweight paulownia wood composite sandwich panel under in-plane axial load was given. Sandwich plate destruction mechanism. The analysis shows that it is appropriate to take the elastic buckling load based on the combination of bending and shearing as the limit of the axial bearing capacity of the paulownia wood composite sandwich panel. The design and construction of the core material joint lamination are the bearing capacity of the sandwich structure The key factor; Compared with the traditional wall or wall, paulownia wood composite sandwich panel has the characteristics of light weight and high carrying capacity.
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