An experimental study of utilization for large-scale wood structure using glulam from Shinshu in which it aimed at forestry reproduce

以信州胶合木为目标的大型木结构利用实验研究

• 批准号: 14350299
• 负责人: SASAGAWA Akira
• 金额: $ 9.6万
• 依托单位: Shinshu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350299/
• 关键词: large scale glulam; large scale wooden structure; bending test; creep test; column to beam connection; coupling joint; recycling; クリープ; 伝統的構法; 曲げ耐力; 木ダボ; 集成材; カラマツ; 柱-梁接合部

In this study, some tests that were used large scale glulam from Shinshu larch were done for example bending test, creep test and so on. Then some knowledge was gotten. The findings are following as ;1.The bending tests of large scale glulam (they were 600cm and 800cm height.) were found size effect less than general ones. And estimating model was able to calculate the bending strengths.2.The creep experiments were tested at the four places in Nagano prefecture. Their creep behaviors were difference at the each place. Especially it was important that was changing values in temperature and humidity in a day. But they didn't show size effect.3.The column to beam connections and the coupling joints were proposed using the traditional wooden joint and they were tested for finding property. About column to beam connections, it was used the "Nuki", the adhesive and the bolts joint. As a result, we got good stiffness and toughness.4.About coupling joints, they were able to get reasonable result as moment resistant joint. As their results, we reconfirmed to be able to build large scale building using only glulam.5.We found the glulam used post of signboard for ten years in which it was aimed investigating about the deterioration of strength and Young's modulus of glulam. The color of surface was renewed by peeling off the outside layer. And the Young's modules of specimen after peeling off the outside layer was as same as before peeling.

在本研究中，使用来自信州落叶松的大型胶合木进行了一些测试，例如弯曲测试、蠕变测试等。然后就得到了一些知识。研究结果如下： 1.大规格胶合木（高度为600cm和800cm）的弯曲试验发现尺寸效应比一般胶合木小。估算模型能够计算出弯曲强度。2.在长野县的四个地方进行了蠕变实验。他们的蠕变行为在每个地方都不同。尤其重要的是一天内温度和湿度值的变化。但未表现出尺寸效应。3.柱梁连接及连杆节点均采用传统的木节点,并进行了性能试验。关于柱与梁的连接，使用了“Nuki”、粘合剂和螺栓连接。结果，我们获得了良好的刚度和韧性。4.关于联轴器接头，作为抗力矩接头，他们能够得到合理的结果。作为他们的结果，我们再次确认能够仅使用胶合木建造大型建筑物。5.我们发现胶合木在招牌柱上使用了十年，目的是调查胶合木强度和杨氏模量的劣化。剥去外层后，表面颜色焕然一新。剥离外层后的试样杨氏模量与剥离前相同。

项目成果

伝統的継手を応用した大断面集成材はり接合部の曲げ実験

传统节点大截面胶合木梁节点弯曲试验

• 发表时间: 2005
• 期刊: 日本建築学会北陸支部研究報告集 第48号
• 作者: 神戸 渡;森 拓郎;橋爪 丈夫;武田 孝志;笹川 明
• 通讯作者: 笹川 明

W.Kambe, T.Mori, T.Hashizume, T.Takeda, A.Sasagawa: "Bending strength of large Japanese larch glued laminated timber"The 8th World Conference on Timber Engineering. (発表予定).

W.Kambe、T.Mori、T.Hashizume、T.Takeda、A.Sasakawa：“大型日本落叶松胶合木材的弯曲强度”第八届世界木材工程会议（待提交）。

信州産カラマツ大断面集成材の曲げ強度特性に関する実験的研究

信州落叶松大断面层积材抗弯强度特性试验研究

• 发表时间: 2003
• 期刊: 2003年度 日本建築学会大会学術講演梗概集 C-1
• 作者: 矢島 賢一;森 拓郎;神戸 渡;橋爪 丈夫;武田 孝志;齋藤 潔;笹川 明
• 通讯作者: 笹川 明

大断面集成材を用いた木質ラーメン構造の柱-梁接合部に関する研究-通し貫接合部を用いた場合-

大断面集成材木刚架结构柱梁节点研究-采用贯通节点时-

• 发表时间: 2004
• 期刊: 2003年度 日本建築学会大会学術講演梗概集 C-1
• 作者: 嶺岡 慎吾;神戸 渡;森 拓郎;橋爪 丈夫;武田 孝志;齋藤 潔;笹川 明
• 通讯作者: 笹川 明

Bending tests of large glulam connections using traditional wooden joint method

使用传统木接头方法进行大型胶合木连接的弯曲试验

• 发表时间: 2003
• 期刊: Proceedings of Annual Meeting of Hokuriku Chapters, Architectural Institute of Japan No.46 (未定)
• 作者: Wataru Kambe;Takuro Mori;Takeo Hashizume;Takashi Takeda;Akira Sasagawa
• 通讯作者: Akira Sasagawa