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竹/木销连接组合木梁抗弯性能研究
引用本文:李桥,宋焕,王志强. 竹/木销连接组合木梁抗弯性能研究[J]. 西北林学院学报, 2020, 35(2): 218-222. DOI: 10.3969/j.issn.1001-7461.2020.02.33
作者姓名:李桥  宋焕  王志强
作者单位:(南京林业大学 材料科学与工程学院,江苏 南京 210037)
基金项目:国家自然科学基金项目(31570559)。
摘    要:试验对竹/木销连接的双层规格材组合木梁进行四点弯曲加载试验。试验参数包括销的种类(竹销和木销),钉入角度(45°、60°、90°)和竹销直径(8、10、12 mm)。结果表明,90°和60°角连接时,竹销连接组合木梁刚度比木销连接分别提升11%和18%;组合木梁随销钉入角度的增加,刚度逐渐增加,90°角连接比60°和45°角连接刚度分别提升7%和29%;增加竹销直径可以有效提升组合木梁刚度。

关 键 词:竹/木销  销连接  组合木梁  抗弯性能

Bending Performance of Timber Composite Beam Fastened with Bamboo/Wood Dowels
LI Qiao,SONG Huan,WANG Zhi-qiang. Bending Performance of Timber Composite Beam Fastened with Bamboo/Wood Dowels[J]. Journal of Northwest Forestry University, 2020, 35(2): 218-222. DOI: 10.3969/j.issn.1001-7461.2020.02.33
Authors:LI Qiao  SONG Huan  WANG Zhi-qiang
Affiliation:(College of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,Jiangsu,China)
Abstract:Four-point bending tests were carried out on double-layer timber composite beams fastened with bamboo and wood dowels.The connection parameters included the types of dowels(bamboo dowels and wood dowels),the connection angles(45,60,and 90°)and the diameter of the dowels(8,10,and 12 mm).The results showed that the stiffness of the composite beams using bamboo dowels increased by 11%and 18%compared with wood dowel connection when connected at 90°and 60°,respectively;the stiffness of composite beams increased gradually with the increase of dowel connection angle,and the stiffness of 90°connection increased by 7%and 29%compared with 60°and 45°connection,respectively;the increase of bamboo dowel diameter could also effectively improve the stiffness of composite beams.
Keywords:bamboo/wood dowel  dowel connection  timber composite beam  bending performance
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