齿榫类型及参数对指接竹规格材性能的影响

刘焕荣; 杨晓梦; 苏勤; 黄爱月; 费本华; 张秀标

doi:10.12326/j.2096-9694.2020074

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齿榫类型及参数对指接竹规格材性能的影响
Effects of Toothed Tenon Types and Parameters on Properties of Finger-Jointed Dimensional Bamboo Lumber
1.国际竹藤中心；国家林草局竹藤科学重点实验室，北京 100102
2.宁波大学；浙江宁波 315211
2021年35卷第1期页码：47-52
DOI： 10.12326/j.2096-9694.2020074

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刘焕荣,杨晓梦,苏勤等.齿榫类型及参数对指接竹规格材性能的影响[J].木材科学与技术,2021,35(01):47-52.

LIU Huan-rong,YANG Xiao-meng,SU Qin,et al.Effects of Toothed Tenon Types and Parameters on Properties of Finger-Jointed Dimensional Bamboo Lumber[J].Chinese Journal of Wood Science and Technology,2021,35(01):47-52.
刘焕荣,杨晓梦,苏勤等.齿榫类型及参数对指接竹规格材性能的影响[J].木材科学与技术,2021,35(01):47-52. DOI： 10.12326/j.2096-9694.2020074.

LIU Huan-rong,YANG Xiao-meng,SU Qin,et al.Effects of Toothed Tenon Types and Parameters on Properties of Finger-Jointed Dimensional Bamboo Lumber[J].Chinese Journal of Wood Science and Technology,2021,35(01):47-52. DOI： 10.12326/j.2096-9694.2020074.

摘要

以竹规格材为研究对象，分别探讨指榫类型（垂直型和水平型）、齿榫参数（I、II、III型齿榫）和嵌合度（0、0.1、0.3 mm）等参数对指接竹规格材性能的影响，结果显示垂直型指榫指接竹规格材的力学性能优于水平型指榫；当嵌合度为0.1 mm，采用垂直Ⅱ型齿榫指接竹规格材的性能最优，与未指接竹规格材相比，指接竹规格材较好地保持了竹材的抗弯和抗拉性能，其抗弯性能和抗拉强度分别满足GB/T 26899—2011《结构用集成材》中机械分等层板力学性能M,E,16级和最高级M,E,18的要求，具备作为结构材的潜力。

Abstract

In the present study, effects of finger joint parameters including finger types, finger tenon parameters (type I, II, and III), and fitness ratios on the performance of finger-jointed dimensional bamboo lumber were explored respectively. Results indicated that the mechanical properties of finger-jointed dimensional bamboo lumber in the verticality (V) finger tenon were better than that with the horizontal (H) tenon. In the V finger tenon, type Ⅱ with 0.1 mm fitness ratio was the best finger joint parameter for dimensional bamboo lumber. Compared with the performance of non-finger-jointed dimensional bamboo lumber, bending and tensile properties of finger-jointed dimensional bamboo lumber performed well, which met the physical property requirements of machine-graded panels of M,E,16 grade and the highest grade of M,E,18 in GB/T 26899—2011. In conclusion, finger-jointed dimensional bamboo lumber has a good application potential in structural materials.

关键词

竹展平板指榫类型齿榫参数竹规格材指接力学性能

Keywords

bamboo flattened sheetfinger joint typestoothed tenon parametersdimensional bamboo lumberfinger-jointmechanical properties

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