Development of Automated Test Facility of Spatial Structures

空间结构自动化测试装置的研制

• 批准号: 06555167
• 负责人: HANGAI Yasuhiko
• 金额: $ 7.62万
• 依托单位: Institute of Industrial Science, University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06555167/
• 关键词: Large Span Structure; Automated Test Facility; Spatial Structure; Buckling; Static Test; Dynamic Test; Lattice Shell; Hybrid Structure; 空間構造; 自動化試験装置; 波動伝播; 動的座屈; 積層シェル; 張力安定トラス; 静的座屈

1.Spatial structure have a three-dimensional from and reveals complicated structural behaviors under the external load so that there are few experimental data about the structural behabiours on buckling, load carrying capacity, etc. Based on this perspective, the objective of the research is to develop an automated static and dynamic loading test facility for spatial structures.The test facility has a multi-axs actuator system and displacement sensors which are arranged in a hexagonal frame in plan and controlled automatically by computer. To examine the validity of the test facility, buckling of shallow arch are tested.2.In the design process, two kinds of spatial structures : lattice shell and hybrid structure of cable and pole are adopted in order to determine the dimension, the capacity of actuator, the magnitude of displacement, etc.for the test facility.3.Lattice shell which is constituted by three-dimensionally arranging members is an excellent structural system viewed from ligh … More tness and strength, and is widely adopted for large span structures. When the lattice shell is designed, the bending stiffness plans an important role in order to reduce member stress and to increase buckling load. Buckling of lattice shell includes member buckling, local buckling and general buckling. From this reason, many papers on theoretical analysis have been presented for spherical lattice shells as well as for cylindrical shells. In this research, the general buckling of shallow cylindrical lattice shell with semi-spherical domical ends is considered. Buckling loads are estimated by using the geometrically nonlinear load-vertical displacement curves and compared with the change of parameters such as the length of cylindrical part, the rise-to-span ratio and the stiffness of semi-spherical ends.4.In the development of a new type test facility, the present research is in the first step. To improve the facility, the following tests are planned.(1) Static test of hybrid structures,(2) Wave propagation test of shallow shells, and(3) Buckling test of shallow lattice shalls. Less

1.空间结构具有三维空间结构，在外荷载作用下表现出复杂的结构行为，导致结构的屈曲、承载能力等行为的实验数据很少。基于这个角度，本研究的目的是开发一种自动化的空间结构静态和动态加载测试装置。该测试装置具有多轴执行器系统和布置在一个空间结构中的位移传感器。 平面为六角形框架，由计算机自动控制。为了检验试验装置的有效性，对浅拱的屈曲进行了测试。2.在设计过程中，采用了两种空间结构：网壳和索杆混合结构，以确定试验装置的尺寸、作动器容量、位移大小等。3.由三维排列构件构成的网壳，从光的适应性和适应性来看，是一种优良的结构体系。 强度高，广泛应用于大跨度结构。在设计网格壳时，弯曲刚度对于减少构件应力和增加屈曲载荷起着重要作用。网壳的屈曲包括构件屈曲、局部屈曲和整体屈曲。因此，针对球格壳和圆柱壳的理论分析发表了许多论文。在这项研究中，考虑了具有半球形穹顶端部的浅圆柱网格壳的一般屈曲。利用几何非线性载荷-竖向位移曲线估算屈曲载荷，并与圆柱件长度、升跨比、半球端刚度等参数的变化进行比较。4.在新型试验装置的开发中，目前的研究处于第一步。为了改进该设施，计划进行以下试验：（1）混合结构静力试验；（2）浅壳波传播试验；（3）浅格子屈曲试验。较少的

项目成果

A.Nishida and Y.Hangai: "Wave Propagation of Single-Layr Lattice Domes" Bulletin of Earthquake Resistant Structure Research Center. No.27. 69-87 (1994)

A.Nishida 和 Y.Hangai：“单层格子穹顶的波传播”抗震结构研究中心通报。

大矢俊治,半谷裕彦: "混合型単層ラチスシェルの座屈荷重" 日本建築学会大会学術講演梗概集. B-I. 1833-1834 (1994)

Toshiharu Oya、Hirohiko Hanya：“混合单层格子壳的屈曲载荷”日本建筑学会会议 B-I 学术讲座摘要（1994 年）。

M.Takayama and Y.Hangai: "Experiments of the Effect of Loading Condition on Buckling Behavior of Reinforced Concrete Cylindrical Shells" Proceedings of the International Symposium on Spatial Structures, Milano. 425-432 (1995)

M.Takayama 和 Y.Hangai：“加载条件对钢筋混凝土圆柱壳屈曲行为影响的实验”国际空间结构研讨会论文集，米兰。

八代和彦,大矢俊治,半谷裕彦: "軸圧縮を受ける補強薄肉円筒シェルの座屈実験" 鋼構造年次論文報告集. 2. 129-132 (1994)

Kazuhiko Yashiro、Toshiharu Oya、Hirohiko Hanya：“轴向压缩增强薄壁圆柱壳的屈曲实验”钢结构年报2. 129-132 (1994)。

半谷裕彦: "建築構造物の設計力学と制御動力学" 丸善, 17 (1994)

Hirohiko Hanya：“建筑结构的设计力学和控制动力学”Maruzen，17（1994）