Development of Wooden Composite Beam to Produce Varrier-Free Space in Wooden house

开发木复合梁以在木屋中产生无变化空间

• 批准号: 11650591
• 负责人: INOUE Masafumi
• 金额: $ 1.92万
• 依托单位: Oita University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650591/
• 关键词: adhesive; metal connector; box beam; truss beam; wooden composite beam; long term loading test

The objective of this study is the development of effective wooden beam having the adequate strength, rigidity and creep performance. Recently, the high quality beam mentioned above is required to support a long span load in the varrier-free space in wooden house according to human aging. The composite beams jointed by new connecting system are tested to research the structural behavior including strength and rigidity under the long term loading.The main parameters in this study are the kinds of composite beam (box beam or truss beam) and existence of joint in chord member for structural frame members.From the test results, the box beams have better creep property than that of the truss beams. Small and short SUGI lumber can be used effectively by using the new connecting system at the joint in chord member provided in box beam. When the new connecting system is adopted at joint of the chord member in the box beam, the creep property of the box beam with joint in the chord member is equal to that of the box beam without joint in the chord member.This long term loading test will be continued for some years.

本研究的目的是开发具有足够强度、刚度和徐变性能的有效木梁。近年来，随着人类的老龄化，人们要求高质量的梁在木结构房屋的无梁空间中支撑大跨度荷载。对采用新型连接体系连接的组合梁进行了长期荷载作用下的强度和刚度试验研究，主要参数为组合梁的类型（箱梁或桁架梁）和结构框架杆件中弦杆是否存在节点，试验结果表明，箱梁比桁架梁具有更好的徐变性能。在箱梁弦杆节点处采用新型连接系统，可以有效地利用小而短的SUGI木材。在箱梁弦杆节点处采用新的连接体系后，弦杆有节点箱梁的徐变性能与弦杆无节点箱梁的徐变性能相当，这种长期加载试验将持续若干年。

项目成果

Masafumi INOUE et.al.: "Experimental Study on Creep Characteristics of Wooden Composite Beam -Part.2 Bending Test Result During 14 months-"AIJ Kyushu Chapter Architectural Research Meeting, Structure. No.40. 325-328 (2001)

Masafumi INOUE 等人：“木复合梁蠕变特性的实验研究 - 第 2 部分 14 个月期间的弯曲试验结果 -”AIJ 九州分会建筑研究会议，结构。

井上正文 他: "木製合成梁の曲げクリープ特性について(その1)載荷期間105日の場合"日本建築学会大会学術講演梗概集. C-1分冊. 249-250 (2000)

Masafumi Inoue等：“关于木复合梁的弯曲蠕变特性（第1部分）当加载周期为105天时”日本建筑学会会议学术讲座摘要C-1卷（2000年）。 ）

Masafumi INOUE et.al.: "Experimental Study on Structural Behavior of wooden Composite Beams Subjected to Long Term Loads -Part.1 Bending Test results during 105days-"Summaries of Technical Papers of Annual Meeting AIJ. C-1 Structures III. 249-250 (2000)

Masafumi INOUE 等人：“长期荷载下木复合梁结构行为的实验研究 - 第 1 部分 105 天弯曲试验结果 -”AIJ 年会技术论文摘要。

井上正文 他: "Structural behavior of composite beams composed of SUGI lumber"Proceedings of World Conference on Timber Engineering 2000. Vol.1. 3.1.2-1-3.1.2-8 (2000)

Masafumi Inoue 等人：“由 SUGI 木材组成的复合梁的结构行为”2000 年世界木材工程会议记录。第 1 卷 3.1.2-1-3.1.2-8 (2000)

井上正文 他: "各種木製合成梁の曲げクリープ特性に関する実験的研究(その2)載荷期間1年2ヶ月の場合"日本建築学会九州支部研究報告. 第40号. 325-328 (2001)

Masafumi Inoue等：《各种木质组合梁弯曲蠕变特性的实验研究（第2部分）加载周期1年2个月的情况》日本建筑学会九州分会研究报告第40.325-328号（ 2001）