Development of Shaking Table Techniques Using Segmentation Concept toward More Generalized Dynamic Loading Test

使用分段概念开发振动台技术以实现更广义的动态加载测试

• 批准号: 22246073
• 负责人: NAKASHIMA Masayoshi
• 金额: $ 25.71万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22246073/
• 关键词: 動的載荷実験; 振動台; 変位増幅; 振動数増幅; 免震; サブストラクチャ法; セグメント化; 加速度増幅

Dynamic loading test is useful for the advancement of earthquake engineering. Due to high cost among others, dynamic loading systems are commonly limited in size. Needs for dynamic loading test, however, increases in conjunction with the development of various damping devices used for mitigation of earthquake disasters. This study develops methods that increase the power, i.e., the displacement, velocity, and frequency capacities, of shaking tables, by the addition of extra segments that are connected to the shaking table. A displacement enhancing segment is developed by a combination of linear roller sliders and ballast, while a frequency enhancing segment is developed by the production of continuous collision between two spring-mass systems. To ensure accurate response on the segment, various control algorithms are developed. Effectiveness of the proposed system is examined for the behavior of medical appliances installed in a base-isolated medical facility.

动载试验对地震工程的发展具有重要意义。由于成本高等原因，动态加载系统通常在尺寸上受到限制。然而，随着用于减轻地震灾害的各种减震装置的发展，对动态载荷试验的需求增加了。这项研究开发了通过增加连接到振动台的额外节段来增加振动台的功率，即位移、速度和频率容量的方法。位移增强器是由直线滚子滑块和道碴组合而成，频率增强器是通过两个弹簧-质量系统之间的连续碰撞产生的。为了确保节段的准确响应，开发了各种控制算法。对安装在基地隔离医疗设施中的医疗器械的行为，检验了所提议的系统的有效性。

项目成果

Development of Shaking Table Test Techniques to Realize Large Responses and to Control the Reproduced Response

开发振动台测试技术以实现大响应并控制再现响应

• 发表时间: 2010
• 作者: Enokida;R.Ji;X.;Kajiwara;K.;Nagae;T.;Nakashima;M.
• 通讯作者: M.

H-infinity Control in the Frequency Domain for a Semi-Active Floor Isolation System

半主动地板隔离系统的频域 H 无穷大控制

• DOI: 10.1007/s11709-013-0214-x
• 发表时间: 2013
• 期刊: Fronteer of Civil Engineering, Frontier of Civil Engineering
• 作者: Shi Y.;Becker;T. C.;Kurata;M.;and Nakashima;M
• 通讯作者: M

Seismic resistance capacity of high-rise buildings subjected to long-period ground motions: E-defense shaking table test

• DOI: 10.1061/(asce)st.1943-541x.0000161
• 发表时间: 2010-06
• 期刊: Journal of Structural Engineering-asce
• 作者: Yu‐Lin Chung;T. Nagae;T. Hitaka;M. Nakashima

Numerical and experimental evaluation of seismic capacity of high-rise steel buildings subjected to long duration earthquakes

• DOI: 10.1016/j.compstruc.2011.01.017
• 发表时间: 2011-06
• 期刊: Computers & Structures
• 影响因子: 4.7
• 作者: D. Lignos;Yu‐Lin Chung;T. Nagae;M. Nakashima

無規範モデル化したMinimal Control Synthesisによる非線形1質点構造物の制御

• DOI: 10.3130/aijs.77.1863
• 发表时间: 2012-12
• 期刊: Journal of Structural and Construction Engineering (transactions of Aij)
• 作者: 浩一 梶原;竜太 榎田;正愛 中島