Strength Effects of Connecting Methods and the Reinforcements between Cylindrical LVL Posts and Horizontal Members

圆柱形LVL柱与水平构件之间的连接方法和加固的强度效应

• 批准号: 08456091
• 负责人: SASAKI Hikaru
• 金额: $ 4.8万
• 依托单位: Akita Prefectural University (1998)Akita Prefectural College of Agriculture (1996-1997)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08456091/
• 关键词: Cylindrical LVL; Laminated Veneer Lumber (LVL); Round wood column; Engineered wood products; 丸柱; LVL; 木造仕口; 円筒型枠; 成型LVL; 木質円筒; 交錯木理; ハネムーン型接着剤; スパイラルワインダー; ヘリカルワインディング

1) The most reasonable method of manufacturing cylindrical LVL was determined. After many trials, a method to produce high quality products with high productivity and low production costs was found.2) A number of 300mm-diameter Cylindrical LVLs were manufactured from 26mm-thick pine veneers and resorcinol resin adhesive using this method. These products were used as structural columns to test joints with beams. The test results showed that joints with special metal connectors have enough strength for practical application.3) Cylindrical LVL products with reinforcements of glulam cores at both ends for the traditional tongue-and-groove connections performed excellently in the earthquake resistance tests conducted on an actual size house.4) The stresses at the interface between the inner surface of the cylindrical LVL and the glulam core were analyzed using the Finite Element Method.5)The industrial application of the technology developed was investigated.

1)确定了圆柱LVL的最合理制造方法。经过多次试验，找到了一种生产高质量、高生产率、低成本产品的方法。2)采用该方法，以26mm厚松木单板和间苯二酚树脂胶粘剂为原料，制作了多个直径300mm的圆柱形LVLs。这些产品被用作结构柱来测试与梁的连接。试验结果表明，采用特殊金属连接件的接头具有足够的实际应用强度。3)圆柱形LVL产品两端采用胶合木芯增强，用于传统的舌槽连接，在实际尺寸房屋的抗震试验中表现优异。4)采用有限元法对柱状LVL内表面与胶合材芯间界面处的应力进行了分析。5)对所开发的技术进行了工业应用研究。

项目成果

H.Sasaki et al.: "Cylindrical LVL for Structural Use Made by Spiral-Winding Method."Proc.of the International Wood Engineering Conference,October 28-31,1996,New Orleans,Louisiana,USA,. Vol.3. 538-540 (1996)

H.Sasaki等人：“用螺旋缠绕法制造的用于结构用途的圆柱形LVL”。国际木材工程会议记录，1996年10月28-31日，美国路易斯安那州新奥尔良。

H.Sasaki and S.Kawai: "Development of Conversion Technologies of Low-Grade Wood Resources into Higher-Grade Laminated Veneer Products."Proc.of the Workshop for the 40th Anniversary of Chnese Academy of Forestry,Oct.27-28,1998,Beijing,China,. 525-529 (1998

H.Sasaki和S.Kawai：“低等级木材资源转化为高级层压单板产品的转化技术的发展”，中国林业科学研究院成立40周年研讨会论文集，1998年10月27-28日

P. Yang, Y. Osako, H. Yamauchi, H. Sasaki: "Numerical Analysis of Stress Distribution along the Glueline between Cylindrical LVL Column and its Reinforcement Core for End-Joints"Proc. of the International Conference on Timber Engineering PTEC'99, March 15

P. Yang、Y. Osako、H. Yamauchi、H. Sasaki：“圆柱形 LVL 柱与其端部接头加固核心之间胶线应力分布的数值分析”Proc。

H.Sasaki et al.: "Cylindrical LVL for Structural Use Made by Spiral-Winding Method" Proceedings of the Int'l Wood Engineering Conf.Vol.3. 538-540 (1996)

H.Sasaki 等人：“螺旋缠绕法制造的用于结构用途的圆柱形 LVL”国际木材工程会议论文集第 3 卷。

P.Yang, H.Sasaki et al.: "Analysis of residual stress distribution of cylindrical LVL with hclical interlockedgrain" Proc. 3rd Pacific Rim Bio-Based Composites Sym.340-345 (1996)

P.Yang，H.Sasaki 等人：“具有 hclical interlockedgrain 的圆柱形 LVL 残余应力分布分析”Proc。