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Study on Structural Design of Grid Shell Composed of Thin Round Timber and Tension Member

薄圆木受拉杆网壳结构设计研究

基本信息

批准号：
16560508
负责人：
FUJIMOTO Masumi
金额：
$ 2.3万
依托单位：
Osaka City University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560508/
关键词：
tension member thin round timber single layer grid shell tensegrity 4 strut model buckling load self equilibrium stress discrete treatment method 鉛直荷重載荷実験台形型4ストラットモデル材長不整単層格子ドーム初期軸力離散的取扱法

项目摘要

In this study, the prefabricated wooden truss system composed of the thin round timber and tension rods was applied to grid shells and tensegrity structures. We focus the performance of the system and obtain the basic structural design data for grid shells composed of this system.Firstly, a single layer three way grid dome with spherical surface was treated by loading experiments. Next, a single layer two way grid dome with diagonals of tension members in two way grid was treated focusing on both effect of tension members and accuracy of member length. The effect of the initial axial forces of tension rod member on the buckling behaviour of the dome was confirmed. The applicability of this system to the single layer dome was shown by the experimental and analytical results. Then, the ratio of introducing axial force to the specified value in constituent member was evaluated quantitatively by the relation between the axial rigidity ratio of a grid member and that of tension member.Furthermore, this system is applied to the grid shells composed of tensegrity structural system. The 4 strut model tensegrity with stiffening rod member is used as a structural unit. The beamlike structure, arch-like structure, and cylindrical structures are made of this structural unit. The member length, the initial form, self equilibrium forces and the construction process are examined by the assembly experiment. The structural behaviour of these structures is also examined by the loading experiment. The efficiency of construction process, the high accuracy of initial form and self equilibrium stress were shown by the assembly experiments. The load deformation behavior was stable with respect to slacking of some members and the applicability of this system to tensegrity structures was shown by the loading experiment.

本研究将由细圆木与拉杆组成的预制木桁架系统应用于网壳与张拉整体结构。重点研究了该系统的性能，获得了由该系统组成的网壳的基本结构设计数据。首先，对单层三向球面网壳进行了加载试验。其次，对双向网壳中拉杆对角线为双向网格的单层双向网壳进行了分析，重点考虑了拉杆的作用和杆长的精度。确定了拉杆杆件初始轴力对穹顶屈曲性能的影响。实验和分析结果表明该体系对单层穹顶的适用性。然后，利用网格杆件与受拉杆件轴向刚度比的关系，定量地计算了网格杆件轴向力与规定值的比值，并将该体系应用于张拉整体网壳结构体系。采用四杆模型张拉整体加加劲杆件作为结构单元。梁式结构、拱式结构和圆柱形结构都是由这种结构单元组成的。通过装配试验，对构件长度、初始形状、自平衡力和施工过程进行了检验。通过荷载试验，对这些结构的受力性能进行了研究。装配试验表明，该方法施工效率高，初始形状精度高，应力自平衡。试验结果表明，该体系对张拉整体结构具有较好的适用性。

项目成果

期刊论文数量（108）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

小径木丸棒とPC鋼棒を用いたシステムトラスで構成されたテンセグリティに関する実験的研究-その2 4ストラットモデルからなる梁状構造物-

小直径木圆棒和PC钢棒组成的系统桁架张拉整体实验研究-第2部分由4个支柱模型组成的梁式结构-

DOI：
发表时间：
2005
期刊：
日本建築学会大会学術講演梗概集(近畿)構造I
影响因子：
0
作者：
浅木朗;黒木洋;新名康平;渡辺俊行;赤司泰義;高口洋人;黒木洋他4名;黒木洋他4名;永田修三他4名;Hiroto Takaguchi et al.;Hiroto Kuroki et al.;池本稔;Hiroto Takaguchi et al.;待永崇宏;黒木洋他4名;藤本益美;池本稔;Hiroshi Kuroki et al.;待永崇宏;Hiroshi Kuroki et al.;藤本益美
通讯作者：
藤本益美

Experimental Study for Applicability of the Truss System with Round Timber and PC Bar to Single Layer Two-way Grid Dome-Partl Experimental Method and Results-

圆木PC筋桁架系统对单层双向网格穹顶适用性的实验研究-部分实验方法与结果-