Nodes Effect on the Bending Performance of Laminated Bamboo Lumber Unit  

作　　者：Yiwei Xuan Haitao Li Zhemin Bei Zhenhua Xiong Rodolfo Lorenzo Ileana Corbi Ottavia Corbi 

机构地区：[1]College of Civil Engineering,Nanjing Forestry University,Nanjing,210037,China [2]Ganzhou Sentai Bamboo Company Ltd.,Ganzhou,341001,China [3]University of Melbourne,Melbourne,3010,Australia [4]University College London,London,WC1E 6BT,UK [5]University of Naples Federico II,Naples,80133,Italy

出　　处：《Journal of Renewable Materials》2021年第6期1143-1156,共14页可再生材料杂志（英文）

基　　金：The research work presented in this paper is supported by the National Natural Science Foundation of China(Nos.51878354&51308301);the Natural Science Foundation of Jiangsu Province(Nos.BK20181402&BK20130978);practical and innovation training project of Nanjing Forestry University(2019NFUSPITP0496,2020NFUSPITP0378,202010298039Z).Any research results expressed in this paper are those of the writers and do not necessarily reflect the views of the foundations。

摘　　要：This research studied the ultimate bearing capacity of laminated bamboo lumber(LBL)unit and thereby calculated the maximum bending moment.The load-displacement chart for all specimens was obtained.Then the flexural capacity of members with and without bamboo nodes in the middle section was coMPared.The bending experiment phenomenon of LBL unit was concluded.Different failure modes of bending components were analysed and concluded.Finally,the bending behaviour of LBL units is coMPared with other bamboo and timber products.It is shown that the average ultimate load of BS members is 866.1 N,the average flexural strength is 101 MPa,the average modulus of elasticity is 8.3 GPa,and the average maximum displacement is 17.02 mm.The average ultimate load of BNS members is 1008.1 N,the average flexural strength is 118.02 MPa,the average modulus of elasticity is 9.9 GPa,and the average maximum displacement is 18.26 mm.Laminated bamboo lumber(LBL)unit without bamboo nodes(BNS)has relatively higher flexural strength coMPared with LBL unit with bamboo nodes(BS).The presence of bamboo nodes reduces the strength of the entire structure.Three failure modes were concluded for BS members,and two failure modes were observed for BNS members during the experimental process.According to a coMParison between the LBL unit and other products,the flexural strength and bending modulus of elasticity of the LBL unit are similar as bamboo scrimber and raw bamboo components,which is much higher than timber components.

关 键 词：Laminated Bamboo Lumber bending test flexural strength bamboo node 

分 类 号：G63[文化科学—教育学]