Dynamic Characteristics and Failure Mechanisms of Spacial Structures

空间结构动力特性及破坏机理

• 批准号: 60460171
• 负责人: HANGAI Yasuhiko
• 金额: $ 4.61万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60460171/
• 关键词: Space-Frame; Spatial Structure; Single-Layer Dome; Seismic Response; Shaking Table Test; Response Analysis; Dynamic Characteristics; 上下動振動

The importance of considering the dynamic treatments of spacial structures at the time of design has been pointed out from the various points of view, based on, for example, the numerical results of large seismic responses for a spherical shell due to vertical earthquake motions.The purpose of the present study is to investigate the dynamic behaviours of reticulated single-layer shallow domes by means of the free vibration tests and the shaking table tests by a newly developed model using "spring" for each member. The results are compared with the another model with the similar configuration and dimension.The model, which is a reticulated single-layer shallow dome with triangular unit, is composed of 132 members connecting at 61 joints, and the base dismeter (a) of this model is 2.8 m. The rise (h) and the rise-to-span ratio (h/a) are 37.5 cm and 0.134, respectively. The stiffness of the member depends on the axial stiffness of the spring, and the members are pin-connected at their joints.The following items are mainly studied:(1) Free vibration tests,(2) Shaking table tests for up-down motion, and(3) Comparison of the results with similar model and numerical analyses.

基于例如垂直地震运动引起的球壳大地震反应的数值结果，从不同的角度指出了在设计时考虑空间结构动力处理的重要性。本研究的目的是通过自由振动试验和振动台试验，通过新开发的模型对每个构件使用“弹簧”来研究网状单层浅穹顶的动态行为。该模型为三角形单元的网状单层浅穹顶，由132个杆件组成，有61个节点连接，其底距(a)型号为2.8m。立高 (h) 和立跨比 (h/a) 分别为 37.5 cm 和 0.134。杆件的刚度取决于弹簧的轴向刚度，杆件在接头处采用销连接。主要研究了以下几项：(1)自由振动试验，(2)上下运动振动台试验，和（3）与相似模型和数值分析的结果比较。

项目成果

Tanami, T. and Hangai, Y.: "Shaking Table Tests for the Dynamic Behaviours of Reticulated Single-Layer Dome by Use of a Spring Model" International Colloqium on Space Structures for Sports Buildings, Beljium, China, October, 1987.

Tanami, T. 和 Hangai, Y.：“使用弹簧模型对网状单层穹顶动态行为进行振动台测试”国际体育建筑空间结构学术研讨会，中国贝尔吉姆，1987 年 10 月。

Tanami, T. and Hangai, Y.: "Dynamic Experiments and Earthquake Observation of Reticulated Single-Layer Domes" International Symposium on Practical Aspects in the Computation of Shell and Spatial Structures, leuven, Belgium, July, 1986.

Tanami, T. 和 Hangai, Y.：“网状单层穹顶的动态实验和地震观测”壳和空间结构计算实用方面国际研讨会，比利时鲁汶，1986 年 7 月。

Tanami,T.;Hangai,Y.: International Colloqium on Space Structures for Sports Buildings,Beljium,China,October,1987.

Tanami,T.；Hangai,Y.：体育建筑空间结构国际研讨会，中国贝尔吉姆，1987 年 10 月。

Tanami,T.;Hangai,Y.: International Symposium on Practical Aspects in the Computation of Shell and Spatial Structures,Leuven,Belgium,July.

Tanami,T.；Hangai,Y.：壳和空间结构计算实用方面国际研讨会，比利时鲁汶，7 月。