Study on the Detachable Design and Mechanical Property of Mortise Joints for Laminated Bamboo Furniture
-
摘要: 【目的】为实现竹集成材家具绿色榫接合结构的可拆装性。【方法】设计了一款未施胶的可拆装榫接合结构,测试了施胶的榫接合结构、未施胶的2种不同粗糙度的榫接合结构以及未施胶的可拆装榫接合结构的抗拔力学性能及粗糙度,并分析了节点的破坏形态及其加载过程中的力学行为。【结果】施胶榫接合结构主要是胶层破坏,未施胶的榫接合结构则榫头与榫槽均未破坏;可拆装榫接合结构其粗糙度(5.64 μm)小于对照榫接合结构(7.54 μm),但其抗拔力(1 961.0 N)远超对照组榫接合结构(520.7 N),同时该榫结构节点处接合紧固;榫接合结构的抗拔力位移曲线整体呈直线上升—缓慢曲线上升—直线上升—直线下降4个发展阶段。【结论】设计的可拆装榫接合结构加工简单,绿色环保,健康安全,榫头可实现批量化、标准化生产。该研究对竹集成材家具结构设计合理性具有重要的指导意义,有助于竹家具的创新发展。Abstract: 【Objective】In order to realize the disassembly and assembly of the mortise joint structure of bamboo furniture. 【Method】A mortise joint structure without glue was designed. In this study, the tensile mechanical properties and roughness of two conventional mortise joint structures with glue and without glue including different roughness and the newly designed mortise joint structure were tested,and the failure characteristics of the joint and its mechanical behavior in the loading process were analyzed. 【Result】The results showed that the glue layer was mainly damaged in the glued mortise joint structure, while the mortise and tenon were not damaged in the unglued tenon joint structure. The roughness of the newly designed mortise joint structure is much less than that of the control mortise joints,but its tensile force (1 961.0 N) was much higher than that of the control mortise joints (520.7 N),and the joints of the mortise structure are fastened. The tensile force and displacement curve of the mortise joint structure showed four development stages: straight-line rise, slow curve rise, straight-line rise and straight-line decline. 【Conclusion】The design of detachable mortise joint structure has the characteristics of simple processing technology, green environmental protection, health and safety, and its tenon can realize mass, standardized production. This study has important guiding significance for the rationality of bamboo furniture structure design, and is conducive to the innovative development of bamboo furniture.
-
陈炳睿,胡文刚. 一种可拆装式椭圆榫节点的设计与性能分析[J]. 木材科学技术,2022,36(2):65-70,86. 陈华山. 竹集成材椅类家具结构连接性能的研究[D]. 杭州:浙江农林大学,2018. 胡传双,李重根,李鹏,等. 非胶合条件下松木直角榫卯接合的抗拉力[J]. 木材工业,2007,21(4):21-23. 胡文刚,白珏,关惠元. 一种速生材榫接合节点增强方法[J]. 北京林业大学学报,2017a,39(4):101-107. 胡文刚,关惠元. 基于摩擦特性的榫接合节点抗拔力研究[J]. 林业工程报,2017b,2(4):158-162. 李重根,胡传双,廖红霞,等. 榫卯结构破坏特征及其抗拉强度的试验[J]. 华南农业大学学报,2007,28(4):108-111. 李吉庆,张齐生,陈礼辉. 竹集成材家具典型角接合强度的测试与比较[J]. 西南林学院学报,2010,30(4):78-81. 李吉庆,张齐生,陈礼辉. 竹集成材家具木圆榫接合强度的研究[J]. 西南林业大学学报,2011,31(6):74-77. 李素瑕,刘文金,孙德林. 速生松木家具几种节点接合方式的强度比较研究[J]. 中南林业科技大学学报,2014,34(2):122-126. 刘佳慧,宋莎莎. 榫卯结构在木构建筑中的传承与发展[J]. 林产工业,2019,46(3):54-59. 马掌法,姚浩然,张齐生. 竹集成材板式家具的特性和工艺[J]. 林产工业,2002,29(6):42-43. 宋俞成,朱丽华,马贞,等. 梓木家具圆榫接合抗拉强度影响因素试验研究[J]. 林产工业,2014,41(3):20-23. 汤琳,关惠元. 基于数控加工技术的格肩榫改良设计研究[J]. 林产工业,2020,57(11):22-26,36. 奚茜,杨洋,张仲凤. 不同结点形式下黄荆木重组材T型构件的抗拔力与有限元分析[J]. 林业工程学报,2020,5(1):182-187. 张叶田,何礼平. 竹集成材与常见建筑结构材力学性能比较[J]. 浙江林学院学报,2007,24(1):100-104. 钟世禄,关惠元. 椭圆榫过盈配合量与木材密度的关系[J]. 林业科技开发,2007,21(2):57-59. Fu W L,Guan H Y,Zhang X Y. Verification and further study on method of measuring contact force between mortise and tenon joint[J]. Bioresources,2020,16(1):263-276. Liese W. The anatomy of Bamboo Culms[M]. Beijing:International Network for Bamboo and Rattan,1998. Tankut A N,Tankut N. The effects of joint forms (shape) and dimensions on the strengths of mortise and tenon joints[J]. Turkish Journal of Agriculture and Forestry,2005,29(6):493-498. -

计量
- 文章访问数: 29
- HTML全文浏览量: 0
- PDF下载量: 6
- 被引次数: 0