侧压竹集成材柱轴心受压试验研究

谢亚孜; 陈伯望; 刘哲; 王柳; 邓谋韬

doi:10.11835/j.issn.2096-6717.2021.118

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侧压竹集成材柱轴心受压试验研究

土木工程 | 更新时间：2023-07-10

- 侧压竹集成材柱轴心受压试验研究
- Experimental study on side-pressure laminated bamboo column under axial compression
- 土木与环境工程学报 2023年45卷第4期页码：146-153
- 作者机构：
  
  中南林业科技大学土木工程学院，长沙 410004
- 作者简介：
  
  谢亚孜（1996- ），女，主要从事竹结构研究，E-mail：1419728949@qq.com。
  陈伯望（通信作者），男，博士，教授，E-mail：644746697@qq.com。
- 基金信息：
  
  湖南省创新创业技术投资项目(2019GK5087)
- DOI：10.11835/j.issn.2096-6717.2021.118
  中图分类号： TU366.1
- 收稿：2021-02-18，
  
  纸质出版：2023-08-25
- 稿件说明：
移动端阅览
谢亚孜, 陈伯望, 刘哲, 等. 侧压竹集成材柱轴心受压试验研究[J]. 土木与环境工程学报, 2023,45(4):146-153.

XIE Yazi, CHEN Bowang, LIU Zhe, et al. Experimental study on side-pressure laminated bamboo column under axial compression[J]. Journal of Civil and Environmental Engineering, 2023, 45(4): 146-153.
谢亚孜, 陈伯望, 刘哲, 等. 侧压竹集成材柱轴心受压试验研究[J]. 土木与环境工程学报, 2023,45(4):146-153. DOI： 10.11835/j.issn.2096-6717.2021.118.

XIE Yazi, CHEN Bowang, LIU Zhe, et al. Experimental study on side-pressure laminated bamboo column under axial compression[J]. Journal of Civil and Environmental Engineering, 2023, 45(4): 146-153. DOI： 10.11835/j.issn.2096-6717.2021.118.

摘要

竹集成材是一种将竹片用胶黏剂胶合后压制而成的型材，侧压竹集成材具有良好的受力性能。为了探究侧压竹集成材柱的轴心受压性能，对6组18个不同长细比的试件进行轴心受压试验，分析其承载力、应变、侧向位移、轴向位移与长细比之间的关系，并探讨不同长细比试件的破坏形式。结果表明：侧压竹集成材柱的受力过程经历了弹性、弹塑性和破坏阶段，随着长细比的增大，从材料强度破坏向失稳破坏转变，材料破坏具有明显的延性性质。将试验结果与现行规范的计算结果进行比较分析，提出了侧压竹集成材柱的轴心受压承载力计算公式，计算值与试验值吻合较好。

Abstract

Laminated bamboo lumber is a bamboo material that flat laminates are glued by adhesives and co MPacted into mould. Side-pressure laminated bamboo lumber has a good mechanical property. In order to explore its mechanical properties under axial compression

an experimental study was carried out in 6 groups of 18 specimens with different slenderness ratio. The relationships between various parameters (bearing capacity

strain

lateral displacement and axial displacement) and slenderness ratio were analyzed

and the failure modes of specimens under different slenderness ratios were discussed.The results indicate the mechanical process of side-pressure laminated bamboo lumber has experienced the stages of elasticity

elastic-plastic and failure. With the increase of slenderness ratio

the failure mode changes from material strength failure to buckling failure

and the material strength failure has obvious ductility property. The comparison between experimental results and various specifications was made to put forward the formula of bearing capacity under axial compression of side-pressure laminated bamboo lumber

and the calculated values agree well with the experimental values.

关键词

Keywords

references

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