高性能杨木重组木顺纹抗拉强度尺寸效应研究

武国芳; 张亚慧; 钟永; 任海青

doi:10.12326/j.2096-9694.2025079

研究报告 | 浏览量 : 0 下载量: CSCD: 0 CNKI被引量: 0 Crossref: 0 Wos: 0 Scopus: 0 更多指标

PDF
导出
分享
收藏
专辑

高性能杨木重组木顺纹抗拉强度尺寸效应研究
Study on Size Effect on Tensile Strength Parallel to Grain of High-Performance Poplar Wood Scrimber
中国林业科学研究院木材工业研究所，北京 100091
2026年40卷第1期页码：51-56
DOI： 10.12326/j.2096-9694.2025079
稿件说明：

移动端阅览

武国芳,张亚慧,钟永等.高性能杨木重组木顺纹抗拉强度尺寸效应研究[J].木材科学与技术,2026,40(01):51-56. DOI： 10.12326/j.2096-9694.2025079.

WU Guofang,ZHANG Yahui,ZHONG Yong,et al.Study on Size Effect on Tensile Strength Parallel to Grain of High-Performance Poplar Wood Scrimber[J].Chinese Journal of Wood Science and Technology,2026,40(01):51-56. DOI： 10.12326/j.2096-9694.2025079.

摘要

高性能重组木作为一种新型工程木产品，因其优异的力学性能和尺寸稳定性在建筑领域具有广泛的应用潜力，但其尺寸效应对力学强度的影响尚缺乏系统研究。研究制备不同截面积和受拉长度的高性能杨木重组木试件，测试其顺纹抗拉强度，采用对数正态分布分析强度百分位数，并基于最弱链理论确定尺寸效应系数。结果表明，随着截面积和受拉长度变化，高性能杨木重组木的抗拉强度存在明显的尺寸效应。受拉长度尺寸效应系数

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380255&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380253&type=

2.53999996

3.21733332

大于截面积尺寸效应系数

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380283&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380269&type=

2.62466669

3.21733332

，且两者均随强度百分位数

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380250&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380259&type=

2.70933342

3.21733332

增加呈线性增长，分别满足关系式

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380289&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380262&type=

27.17799950

3.21733332

、

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380292&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380265&type=

27.26266861

3.21733332

。根据受拉长度和截面积尺寸效应系数的差异，提出结合高性能杨木重组木受拉长度和截面积两个维度尺寸变化的抗拉强度折减系数计算方法。

Abstract

High-performance wood scrimber

as a novel engineered wood product

exhibits significant potential for applications in construction due to its excellent mechanical properties

and dimensional stability. However

the size effect on its mechanical strength remains understudied. This study focused on high-performance poplar wood scrimber

preparing specimens with varying cross-sectional areas and tensile lengths to test their tensile strength parallel to grain. The strength percentiles were analyzed using a lognormal distribution

and size effect coefficients were determined based on the weakest link theory. Results indicated that the tensile strength of high-performance poplar wood scrimber exhibited a significant size effect with changes in cross-sectional area and tensile length. The size effect coefficient of tensile length (

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380304&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380282&type=

2.96333337

3.72533321

) was greater than that of cross-sectional area (

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380331&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380297&type=

3.04800010

3.72533321

)

and both increase linearly with the strength percentile (

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380310&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380318&type=

3.13266683

3.72533321

)

satisfying the relationships

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380349&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=103380320&type=

70.35800171

3.80999994

. Based on the differences in size effect coefficients of tensile length and cross-sectional area

a method for calculating reduction factor of tensile strength was proposed

taking into account the size variations in both tensile le

ngth and cross-sectional area of high-performance poplar wood scrimber.

关键词

Keywords

references

张亚慧 , 齐越 , 黄宇翔 , 等 . 我国高性能重组木材料制备技术开发与应用及未来发展 [J ] . 木材工业 , 2018 , 32 ( 2 ): 14 - 17 .

ZHANG Y H , QI Y , HUANG Y X , et al . Manufacturing technology, application and future development of high-performance wood scrimber in China [J ] . China Wood Industry , 2018 , 32 ( 2 ): 14 - 17 .

于文吉 . 我国重组材料科学技术发展现状与趋势 [J ] . 木材科学与技术 , 2023 , 37 ( 1 ): 1 - 7 .

YU W J . Current status and future trend of science and technology for reconstituted materials in China [J ] . Chinese Journal of Wood Science and Technology , 2023 , 37 ( 1 ): 1 - 7 .

MADSEN B . Structural behavior of timber [M ] . North Vancouver, British Columbia : Timber Engineering Ltd. , 1992 .

WEIBULL W . A statistical theory of the strength of materials [R ] . Royal Swedish Institute for Engineering Research , 1939 : 45 .

BOHANNAN B . Effect of size on bending strength of wood members [R ] . Madison : Forest Products Laboratory, Forest Service, Department of Agriculture, US , 1966 .

BARRETT J D , LAU W . Canadian lumber properties [M ] . Ottawa, Ontario Canada : Canadian Wood Council , 1994 .

周海宾 , 王学顺 . 落叶松锯材抗弯强度尺寸效应 [J ] . 土木建筑与环境工程 , 2013 , 35 ( 1 ): 117 - 120 .

ZHOU H B , WANG X S . Size effect of bending strength of Chinese larch lumber [J ] . Journal of Civil, Architecture and Environmental Engineering , 2013 , 35 ( 1 ): 117 - 120 .

赵秀 , 吕建雄 , 江京辉 , 等 . 结构用规格材抗弯强度的尺寸效应 [J ] . 建筑材料学报 , 2014 , 17 ( 4 ): 734 - 737 .

ZHAO X , LYU J X , JIANG J H , et al . Size effect of modulus of rupture for the larch dimension lumber [J ] . Journal of Building Materials , 2014 , 17 ( 4 ): 734 - 737 .

赵荣军 , 王丽 , 张俊珍 , 等 . 单板层积材顺纹抗拉与抗压强度的尺寸效应分析 [J ] . 木材工业 , 2016 , 30 ( 3 ): 38 - 40，48 .

ZHAO R J , WANG L , ZHANG J Z , et al . Analysis of size effect on longitudinal tensile and compressive strength of laminated veneer lumber [J ] . China Wood Industry , 2016 , 30 ( 3 ): 38 - 40，48 .

龚迎春 , 叶琦 , 武国芳 , 等 . 国产落叶松正交胶合木顺纹抗压强度尺寸效应 [J ] . 木材科学与技术 , 2021 , 35 ( 1 ): 42 - 46 .

GONG Y C , YE Q , WU G F , et al . Effect of size on compressive strength parallel to the grain of cross-laminated timber made with domestic Larch [J ] . Chinese Journal of Wood Science and Technology , 2021 , 35 ( 1 ): 42 - 46 .

赵培焱 , 张新培 . 结构用重组竹弯曲强度和剪切强度的尺寸效应研究 [J ] . 建筑结构学报 , 2020 , 41 ( 4 ): 184 - 190 .

ZHAO P Y , ZHANG X P . Study on the size effect of bending strength and shear strength of structural reconstituted bamboo [J ] . Journal of Building Structures , 2020 , 41 ( 4 ): 184 - 190 .

ZHANG H , LI H , HONG C , et al . Size effect on the compressive strength of laminated bamboo lumber [J ] . Journal of Materials in Civil Engineering , 2021 , 33 ( 7 ): 04021161 .

XIE P , LIU W , HU Y , et al . Size effect research of tensile strength of bamboo scrimber based on boundary effect model [J ] . Engineering Fracture Mechanics , 2020 , 239 : 107319 .

ZHAO P , ZHANG X . Size effect of section on ultimate compressive strength parallel to grain of structural bamboo scrimber [J ] . Construction and Building Materials , 2019 , 200 : 586 - 590 .

THELANDERSSON S , LARSEN H J . Timber engineering [M ] . West Sussex, England : John Wiley & Sons , 2003 .

李天娥 . 基于可靠度要求的木材强度设计值确定 [D ] . 哈尔滨 : 哈尔滨工业大学 , 2011 .

文章被引用时，请邮件提醒。

提交

国产落叶松正交胶合木顺纹抗压强度尺寸效应

齿板连接抗滑移承载力和板齿承载力的尺寸效应