|Table of Contents|

Experiment on Short-term Bending Creep Performance of Bamboo Scrimber(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2021年05期
Page:
91-98
Research Field:
Publishing date:

Info

Title:
Experiment on Short-term Bending Creep Performance of Bamboo Scrimber
Author(s):
CHEN Si;  WEI Yang;  ZHAO Kun-peng;  HANG Chen;  ZHAO Kang
(College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China)
Keywords:
bamboo scrimber;  short-term creep;  load level;  Burgers model
PACS:
TU366.3
DOI:
10.19815/j.jace.2020.10062
Abstract:
In order to study the bending creep performance of bamboo scrimber, creep tests were carried out on nine bamboo scrimber specimens under different load levels. The relation curve between the creep displacement and time of bamboo scrimber was obtained, and the variation law of creep growth rate and bending creep was obtained. According to the results, the variation rules of elastic deformation, viscoelastic deformation and viscous deformation in the bending creep test were analyzed, and the parameters of Burgers model with different load levels were determined, then the variation law of parameters influenced by load level was derived. A model for predicting bending creep of bamboo scrimber was proposed, and the results were in good agreement with the trend of the test curves. The study results show that the creep deformation increases with the passage of time. Under the action of lower load level, the deformation rate is low and the curve is gentle and stable as a whole. Under the action of higher load level, the creep deformation rate is faster. The growth rate of bending creep of bamboo scrimber increases gradually with the increase of time, and its growth rate presents a decelerating state.

References:

[1] 李玉敏,冯鹏飞.基于第九次全国森林资源清查的中国竹资源分析[J].世界竹藤通讯,2019,17(6):45-48.
LI Yu-min,FENG Peng-fei.Bamboo Resources in China Based on the Ninth National Forest Inventory Data[J].World Bamboo and Rattan,2019,17(6):45-48.
[2]魏 洋,张齐生,蒋身学,等.现代竹质工程材料的基本性能及其在建筑结构中的应用前景[J].建筑技术,2011,42(5):390-393.
WEI Yang,ZHANG Qi-sheng,JIANG Shen-xue,et al.Basic Properties and Prospects of Modern Bamboo Engineering Materials Applied in Building Structures[J].Architecture Technology,2011,42(5):390-393.
[3]李海涛,宣一伟,许 斌,等.竹材在土木工程领域的应用[J].林业工程学报,2020,5(6):1-10.
LI Hai-tao,XUAN Yi-wei,XU Bin,et al.Bamboo Application in Civil Engineering Field[J].Journal of Forestry Engineering,2020,5(6):1-10.
[4]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(增1):140-145.
WEI Yang,WU Gang,ZHANG Qi-sheng,et al.Theoretical Analysis and Experimental Test of Full-scale Bamboo Scrimber Flexural Components[J].Journal of Civil,Architectural & Environmental Engineering,2012,34(S1):140-145.
[5]魏 洋,周梦倩,袁礼得.重组竹柱偏心受压力学性能[J].复合材料学报,2016,33(2):379-385.
WEI Yang,ZHOU Meng-qian,YUAN Li-de.Mechanical Performance of Glulam Bamboo Columns Under Eccentric Loading[J].Acta Materiae Compositae Sinica,2016,33(2):379-385.
[6]魏 洋,纪雪微,端茂军,等.重组竹轴向应力-应变关系模型[J].复合材料学报,2018,35(3):572-579.
WEI Yang,JI Xue-wei,DUAN Mao-jun,et al.Model for Axial Stress-strain Relationship of Bamboo Scrimber[J].Acta Materiae Compositae Sinica,2018,35(3):572-579.
[7]CHEN S,WEI Y,HU Y F,et al.Behavior and Strength of Rectangular Bamboo Scrimber Columns with Shape and Slenderness Effects[J].Materials Today Communications,2020,25:101392.
[8]陈 国,于云飞,李 祥,等.定向刨花板加固腹板开洞竹木工字梁力学性能研究[J].农业工程学报,2018,34(23):260-266.
CHEN Guo,YU Yun-fei,LI Xiang,et al.Study on Laminated Bamboo Lumber-wood I Shaped Joist with Web Opening Reinforced by Oriented Stand Board Plates[J].Transactions of the Chinese Society of Agricultural Engineering,2018,34(23):260-266.
[9]李海涛,苏靖文,魏冬冬,等.基于大尺度重组竹试件各向轴压力学性能研究[J].郑州大学学报:工学版,2016,37(2):67-72.
LI Hai-tao,SU Jing-wen,WEI Dong-dong,et al.Comparison Study on Parallel Bamboo Strand Lumber Under Axial Compression for Different Directions Based on the Large Scale[J].Journal of Zhengzhou University:Engineering Science,2016,37(2):67-72.
[10]李海涛,魏冬冬,苏靖文,等.竹重组材偏心受压试验研究[J].建筑材料学报,2016,19(3):561-565,583.
LI Hai-tao,WEI Dong-dong,SU Jing-wen,et al.Experimental Study on PSBL Under Eccentric Compression[J].Journal of Building Materials,2016,19(3):561-565,583.
[11]李 频,陈伯望.结构用重组竹抗弯性能试验研究[J].建筑结构,2020,50(2):117-121,116.
LI Pin,CHEN Bo-wang.Experimental Research on Flexural Properties of Bamboo Scrimber Beam[J].Building Structure,2020,50(2):117-121,116.
[12]陈伯望,刘玉琪,吕炜磊,等.重组竹柱长期受压性能试验研究[J].四川建筑科学研究,2019,45(5):27-31.
CHEN Bo-wang,LIU Yu-qi,LYU Wei-lei,et al.Research on the Mechanical Properties of Reconsolidated Bamboo Column Under Long Term Axial Compression[J].Sichuan Building Science,2019,45(5):27-31.
[13]苏 毅,宗生京,徐 丹,等.竹集成材简支梁抗弯性能试验研究[J].建筑科学与工程学报,2016,33(1):54-60.
SU Yi,ZONG Sheng-jing,XU Dan,et al.Experimental Study on Flexural Properties of Glued Laminated Bamboo Simply Supported Beams[J].Journal of Architecture and Civil Engineering,2016,33(1):54-60.
[14]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 Pei-yan,ZHANG Xin-pei.Size Effect of Bending Strength and Shear Strength of Structural Bamboo Scrimber[J].Journal of Building Structures,2020,41(4):184-190.
[15]GOTTRON J,HARRIES K A,XU Q.Creep Behaviour of Bamboo[J].Construction and Building Materials,2014,66:79-88.
[16]HOSEINZADEH F,ZABIHZADEH S M,DASTOORIAN F.Creep Behavior of Heat Treated Beech Wood and the Relation to Its Chemical Structure[J].Construction and Building Materials,2019,226:220-226.
[17]VAN DEN OEVER M,MOLENVELD K.Creep Deflection of Wood Polymer Composite Profiles at Demanding Conditions[J].Case Studies in Construction Materials,2019,10:e00224.
[18]李玉顺,张秀华,吴培增,等.重组竹在长期荷载作用下的蠕变行为[J].建筑材料学报,2019,22(1):65-71.
LI Yu-shun,ZHANG Xiu-hua,WU Pei-zeng,et al.Creep Behavior of Bamboo Scrimber Under Long-term Load[J].Journal of Building Materials,2019,22(1):65-71.
[19]孙丽惟,卞玉玲,周爱萍,等.重组竹短期蠕变性能研究[J].林业工程学报,2020,5(2):69-75.
SUN Li-wei,BIAN Yu-lin,ZHOU Ai-ping,et al.Study on Short-term Creep Property of Bamboo Scrimber[J].Journal of Forestry Engineering,2020,5(2):69-75.
[20]章卫钢,江文正,唐荣强.重组竹短期抗弯蠕变特性及其微观结构研究[J].林业工程学报,2017,2(3):33-37.
ZHANG Wei-gang,JIANG Wen-zheng,TANG Rong-qiang.Study on Short-term Bending Creep Behavior and Microstructure of Bamboo Scrimber[J].Journal of Forestry Engineering,2017,2(3):33-37.
[21]赵卫锋,杨 斌,周 靖,等.带约束拉杆方钢管/竹胶合板组合柱轴压蠕变性能[J].建筑材料学报,2018,21(3):465-471.
ZHAO Wei-feng,YANG Bin,ZHOU Jing,et al.Creep Behavior of Square Steel Tube/Bamboo-plywood Composite Column with Binding Bars[J].Journal of Building Materials,2018,21(3):465-471.

Memo

Memo:
-
Last Update: 2021-09-01