Experimental study of flexural performance of raw bamboo

HE Ziqi; LIU Changping; ZHOU Xuhong; XIAO Sa; ZHONG Ziqin

doi:10.11835/j.issn.2096-6717.2021.139

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Experimental study of flexural performance of raw bamboo

Civil Engineering | 更新时间：2023-07-10

- Experimental study of flexural performance of raw bamboo
- Journal of Civil and Environmental Engineering Vol. 45, Issue 4, Pages: 133-145(2023)
- 作者机构：
  
  1.重庆大学，土木工程学院，重庆 400045
  2.重庆大学，山地城镇建设与新技术教育部重点试验室，重庆 400045
- 作者简介：
  
  brief: HE Ziqi (1980- ), PhD, associate professor, main research interest: basic theory and application of steel structure and new-type raw bamboo structure, E-mail: heziqi@cqu.edu.cn.
  ZHOU Xuhong （corresponding author）, PhD, professor, E-mail: zhouxuhong@126.com.
- 基金信息：
  
  National Key R & D Program(2017YFC0703504)
- DOI：10.11835/j.issn.2096-6717.2021.139
  CLC： TU366.1;TU317
- Received：21 April 2021，
  
  Published：25 August 2023
- 稿件说明：
移动端阅览
HE Ziqi, LIU Changping, ZHOU Xuhong, et al. Experimental study of flexural performance of raw bamboo[J]. Journal of Civil and Environmental Engineering, 2023, 45(4): 133-145.
DOI：

HE Ziqi, LIU Changping, ZHOU Xuhong, et al. Experimental study of flexural performance of raw bamboo[J]. Journal of Civil and Environmental Engineering, 2023, 45(4): 133-145. DOI： 10.11835/j.issn.2096-6717.2021.139.

摘要

为研究毛竹杆的受弯性能，先对取自10根毛竹的40组竹条标准材性件进行抗弯试验，得到其破坏模式和抗弯强度；再对直径为90、120 mm，跨距为3 000、3 600 mm的24根毛竹杆进行弯曲试验，研究其荷载—位移曲线、初始抗弯刚度、极限承载力、挠度、破坏模式等相关力学性能；理论推导毛竹梁破坏受压区高度及受拉区边缘应力。结果表明：毛竹梁跨距变化对挠度的影响大于直径变化对挠度的影响，毛竹梁直径越大、跨距越小，初始抗弯刚度越大；根据试验数据，按弹性理论计算出毛竹杆受弯破坏时的受压区高度在3

/2处，在小挠度条件下，毛竹梁受弯符合平截面假定，大挠度条件下，截面受压区高度上移，计算出的破坏边缘拉应力与平截面假定计算的结果不一致，建议毛竹梁受弯破坏弯矩按上边缘顺纹抗压强度达到最大进行计算。

Abstract

In order to study the flexural performance of bamboo member

40 groups of bamboo standard wood strips from 10 raw bamboos were tested to obtain their failure modes and flexural strength. Then

the 24 raw bamboo beams with diameters of 90 mm and 120 mm making the spans of 3 000 mm and 3 600 mm were subjected to bending collapse tests. And the load-displacement curves

initial bending stiffness

ultimate bearing capacity

deflection and failure modes were analyzed. The height of compressive zone and edge stress of tensile zone of the raw bamboo beams were deduced theoretically. The results show that the influence of span change on deflection of bamboo beam is greater than that of diameter at breast height. The larger diameter at breast height and the smaller span

the greater the initial bending stiffness of the bamboo beams. According to the test data and the classical elastic theory

it is calculated that the compressive zone height of the bamboo beam is about 3

/2 height of the cross-section. Under the condition of small deflection

the bending of Phyllostachys pubescents beam conforms to the assumption of flat section

while under the condition of large deflection

the height of compression zone of section moves up

and the calculated tensile stress of failure edge is inconsistent with the calculated result of the assumption of flat section. It is suggested that the bending moment of Phyllostachys pubescents beam should be calculated according to the maximum compressive strength of the upper edge along the grain.

关键词

Keywords

references

程秀才 , 张晓冬 , 张齐生 , 等 . 四大竹乡产毛竹弯曲力学性能的比较研究 [J]. 竹子研究汇刊 , 2009 , 28 ( 2 ): 34 - 39 .

CHENG X C , ZHANG X D , ZHANG Q S , et al . A comparative study on binding performance of moso bamboo from four hometowns of bamboo [J]. Journal of Bamboo Research , 2009 , 28 ( 2 ): 34 - 39 . (in Chinese)

肖岩 , 杨瑞珍 , 单波 , 等 . 结构用胶合竹力学性能试验研究 [J]. 建筑结构学报 , 2012 , 33 ( 11 ): 150 - 157 .

XIAO Y , YANG R Z , SHAN B , et al . Experimental research on mechanical properties of glubam [J]. Journal of Building Structures , 2012 , 33 ( 11 ): 150 - 157 . (in Chinese)

KUMAR A , VLACH T , LAIBLOVA L , et al . Engineered bamboo scrimber: Influence of density on the mechanical and water absorption properties [J]. Construction and Building Materials , 2016 , 127 ( 30 ): 815 - 827 .

LV Q , LIU Y , DING Y . Analyses on prestress loss and flexural performance of the laminated bamboo beam applied with prestressed BFRP sheet [J]. Advances in Civil Engineering , 2019 , 2019 : 1 - 13 .

周军文 , 姜慧辉 , 鲁良辉 , 等 . 重组竹梁受弯承载力试验研究 [J]. 建筑结构 , 2016 , 46 ( 23 ): 42 - 45 .

ZHOU J W , JIANG H H , LU L H , et al . Experimental study on flexural bearing capacity of recombinant bamboo beams [J]. Building Structure , 2016 , 46 ( 23 ): 42 - 45 . (in Chinese)

周爱萍 , 刘睿 , 沈玉蓉 , 等 . 碳纤维增强重组竹受弯构件的极限承载力试验 [J]. 林业工程学报 , 2017 , 2 ( 3 ): 137 - 142 .

ZHOU A P , LIU R , SHEN Y R , et al . Experiment study on ultimate load-bearing capacity of carbon fiber reinforced polymer reinforced parallel bamboo beam [J]. Journal of Forestry Engineering , 2017 , 2 ( 3 ): 137 - 142 . (in Chinese)

SÁ RIBEIRO R A , SÁ RIBEIRO M G , MIRANDA I P A . Bending strength and nondestructive evaluation of structural bamboo [J]. Construction and Building Materials , 2017 , 146 ( 4 ): 38 - 42 .

WEI Y , JI X W , DUAN M J , et al . Flexural performance of bamboo scrimber beams strengthened with fiber-reinforced polymer [J]. Construction and Building Materials , 2017 , 142 ( 3 ): 66 - 82 .

魏洋 , 吴刚 , 张齐生 , 等 . 足尺重组竹受弯构件的试验与理论分析 [J]. 土木建筑与环境工程 , 2012 , 34 ( Sup1 ): 140 - 145 .

WEI Y , WU G , ZHANG Q S , et al . Theoretical analysis and experimental test of full-scale bamboo scrimber flexural components [J]. Journal of Civil , Architectural & Environmental Engineering, 2012 , 34 ( Sup1 ): 140 - 145 . (in Chinese)

张苏俊 , 赵志高 , 张文娟 , 等 . 重组竹梁抗弯性能试验 [J]. 扬州大学学报(自然科学版) , 2016 , 19 ( 1 ): 51 - 54, 67 .

ZHANG S J , ZHAO Z G , ZHANG W J , et al . Research on the flexural performance of bamboo scrimber [J]. Journal of Yangzhou University (Natural Science Edition) , 2016 , 19 ( 1 ): 51 - 54, 67 . (in Chinese)

赵志高 , 肖忠平 , 束必清 , 等 . 碳纤维增强重组竹梁的抗弯性能 [J]. 林业工程学报 , 2017 , 2 ( 6 ): 127 - 132 .

ZHAO Z G , XIAO Z P , SHU B Q , et al . Flexural behavior of carbon fiber reinforced polymer reinforced bamboo scrimber beam [J]. Journal of Forestry Engineering , 2017 , 2 ( 6 ): 127 - 132 . (in Chinese)

肖岩 , 李佳 . 现代竹结构的研究现状和展望 [J]. 工业建筑 , 2015 , 45 ( 4 ): 1 - 6 .

XIAO Y , LI J . The state of the art of modern bamboo structures [J]. Industrial Construction , 2015 , 45 ( 4 ): 1 - 6 . (in Chinese)

GARCÍA-ALADÍN M F , CORREAL J F , GARCÍA J J . Theoretical and experimental analysis of two-culm bamboo beams [J]. Proceedings of the Institution of Civil Engineers-Structures and Buildings , 2018 , 171 ( 4 ): 316 - 325 .

何子奇 , 周绪红 , 肖洒 , 等 . 毛竹受压构件性能试验研究 [J]. 建筑结构学报 , 2018 , 39 ( Sup2 ): 233 - 241 .

HE Z Q , ZHOU X H , XIAO S , et al . Experimental investigation on bamboo columns under axial compression [J]. Journal of Building Structures , 2018 , 39 ( Sup2 ): 233 - 241 . (in Chinese)

于金光 , 郝际平 , 田黎敏 , 等 . 圆竹的力学性能及影响因素研究 [J]. 西安建筑科技大学学报(自然科学版) , 2018 , 50 ( 1 ): 30 - 36 .

YU J G , HAO J P , TIAN L M , et al . The study on the main influencing factors and mechanical properties of phyllostachys pubescens [J]. Journal of Xi ,an University of Architecture & Technology (Natural Science Edition), 2018 , 50 ( 1 ): 30 - 36 . (in Chinese)

张丹 , 王戈 , 张文福 , 等 . 毛竹圆竹力学性能的研究 [J]. 中南林业科技大学学报 , 2012 , 32 ( 7 ): 119 - 123 .

ZHANG D , WANG G , ZHANG W F , et al . Mechanical properties of Phyllostachys pubescens [J]. Journal of Central South University of Forestry & Technology , 2012 , 32 ( 7 ): 119 - 123 . (in Chinese)

BAHTIAR E T , MALKOWSKA D , TRUJILLO D , et al . Experimental study on buckling resistance of Guadua angustifolia bamboo column [J]. Engineering Structures , 2021 , 228 : 111548 .

陈肇元 . 中心受压的圆竹杆件 [J]. 哈尔滨工业大学学报 , 1957 ( 4 ): 23 - 38 .

CHEN Z Y . Round bamboo rod under center compression [J]. Journal of Harbin Institute of Technology , 1957 ( 4 ): 23 - 38 . (in Chinese)

GHAVAMI K . Bamboo as reinforcement in structural concrete elements [J]. Cement and Concrete Composites , 2005 , 27 ( 6 ): 637 - 649 .

TIAN L M , KOU Y F , HAO J P . Axial compressive behaviour of sprayed composite mortar-original bamboo composite columns [J]. Construction and Building Materials , 2019 , 215 ( 4 ): 726 - 736 .

建筑用竹材物理力学性能试验方法 : JG/T 199—2007 [S]. 北京 : 中国标准出版社 , 2007 .

Testing methods for physical and mechanical properties of bamboo used in building : JG/T 199—2007 [S]. Beijing : Standards Press of China , 2007 . (in Chinese)

周芳纯 . 竹材物理力学性质的研究 [J]. 南京林业大学学报(自然科学版) , 1981 , 5 ( 2 ): 1 - 32 .

ZHOU F C . Studies on physical and mechanical properties of bamboo woods [J]. Journal of Nanjing Forestry University , 1981 , 5 ( 2 ): 1 - 32 . (in Chinese)

冼杏娟 , 冼定国 . 竹材的微观结构及其与力学性能的关系 [J]. 竹子研究汇刊 , 1990 , 9 ( 3 ): 10 - 23 .

XIAN X J , XIAN D G . The relationship of microstructure and mechanical properties of bamboo [J]. Journal of Bamboo Research , 1990 , 9 ( 3 ): 10 - 23 . (in Chinese)

建筑结构可靠度设计统一标准 : GB 50068—2001 [S]. 北京 : 中国建筑工业出版社 , 2002 .

Unified standard reliability design of building structures : GB 50068—2001 [S]. Beijing : China Architecture & Building Press , 2002 . (in Chinese)

肖洒 . 楠竹杆件基本受力性能试验研究 [D]. 重庆 : 重庆大学 , 2019 .

XIAO S . Experimental study on basic mechanical properties of bamboo members [D]. Chongqing : Chongqing University , 2019 . (in Chinese)

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