Development of Experimental Systems for Simulation of Complete Failures of Steel Structures Subjected to Earthquake Loading
地震荷载下钢结构完全破坏模拟实验系统的开发
基本信息
- 批准号:11555150
- 负责人:
- 金额:$ 8.83万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1999
- 资助国家:日本
- 起止时间:1999 至 2001
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This study focuses on development of experimental techniques for the simulation of complete failures of structures subjected to earthquake loading. An experimental system that consists of very large stroke loading jacks, high resolution digital displacement transducers, and on-line digital computer control was developed. Using the system developed, tests were conducted for the simulation of complete failures of steel beams and columns. Here, complete failure was defined such that the member was fractured and separated completely and/or the member loses the capacity of sustaining gravity load. The major findings obtained from the tests are as follows.(1) Strong geometrical nonlinearity changed the mode of beam resistance from flexure to axial elongation/contraction.(2) This change of mode generated additional resistance even after the beam sustained significant damage.(3) Complete failure of steel columns was governed by the growth of cracks and succeeding fractures of the section.(4) A certain amount of axial load retarded the initiation and growth of cracks, which assist the increase of column capacity to complete failure. Numerical analysis using the finite element method was performed to simulate the experimental results, and it was found that the analysis is effective even in the regime of strong geometrical nonlinearity but fails to simulate the experimental behavior once the member topology is altered significantly.
这项研究重点是开发实验技术,以模拟发生地震负荷的结构的完全故障。一个实验系统由非常大的中风加载插孔,高分辨率数字排量传感器和在线数字计算机控制组成。使用开发的系统,进行了测试,以模拟钢梁和柱的完全故障。在这里,定义了完全的故障,以使成员被完全分离并完全分离和/或构件失去了持续重力负荷的能力。从测试中获得的主要发现如下。(1)强烈的几何非线性改变了从弯曲到轴向伸长/收缩的光束阻力的模式。(2)这种模式的变化即使光束遭受了显着的损坏,也会产生额外的阻力。(3)钢柱的完整失败受到了钢柱的完整损坏,并保留了一部分的裂纹和成功的量。这有助于增加列的能力完成故障。进行了使用有限元方法的数值分析以模拟实验结果,发现即使在强大的几何非线性方面,该分析也有效,但一旦成员拓扑改变了实验行为。
项目成果
期刊论文数量(32)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Kanao, I., Nakashima, M. and Liu, D.: "Lateral Buckling Behavior and Lateral Bracing of Wide-Flange Beams Subjected Cyclic Loading"Journal of Structural and Construction Engineering, the Architectural Institute Japan. 544. 147-154 (2001)
Kanao, I.、Nakashima, M. 和 Liu, D.:“承受循环荷载的宽翼缘梁的横向屈曲行为和横向支撑”日本建筑学会结构与建筑工程学报。
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Kanao, I., Liu, D. and Nakashima, M.: "Lateral Buckling. And Post-Buckling Behavior of Standard and RBS Steel Beams Subjected Cyclic Loading"Joumal of Constructional Steel. Vol.9. 551-556 (2001)
Kanao, I.、Liu, D. 和 Nakashima, M.:“标准钢梁和 RBS 钢梁承受循环载荷的横向屈曲和后屈曲行为”建筑钢杂志。
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Nakashima M.: "Development, Potential, and Limitations of Real-Time Online Test"Proceedings of the International Symposium on Theory and Application of Structural Engineering Test Method, Beijing. 8-15 (1999)
Nakashima M.:“实时在线测试的发展、潜力和局限性”结构工程测试方法理论与应用国际研讨会论文集,北京。
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- 影响因子:0
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Liu, D.: "Lateral buckling, post-buckling instability, and fracture of steel beams subjected to large cyclic deformations"Proceedings of the US-Japan Seminar on Advanced Stability and Seismicity Concept for Peformance-based Design of Steel and Composite S
刘丹:“大循环变形下钢梁的侧向屈曲、屈曲后失稳和断裂”美日钢与复合材料性能设计先进稳定性与抗震概念研讨会论文集
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金尾伊織: "繰り返し載荷を受けるH形鋼標準梁・RBS梁の横座屈と座屈後挙動"鋼構造年次論文報告書. 第9巻. 551-556 (2001)
Iori Kanao:“标准 H 型钢和 RBS 梁在重复荷载下的横向屈曲和后屈曲行为”钢结构年度论文报告第 9 卷 551-556 (2001)。
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NAKASHIMA Masayoshi其他文献
NAKASHIMA Masayoshi的其他文献
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Assessment of Functionality of Medical Appliances Installed in Base-Isolated Hospitals and When Subjected to Vertical Motion
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23656341 - 财政年份:2011
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$ 8.83万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
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22246073 - 财政年份:2010
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19206060 - 财政年份:2007
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14102028 - 财政年份:2002
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$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (S)
Correlation Between Loading Rate, Temperature Rise, and Material Properties Changes in Plastic Rotation Capacity of Steel Welded Beam-to-Column Connections
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12450224 - 财政年份:2000
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Dissipated-Energy Distribution Characteristics of Steel Moment Frames Incorporated with Hysteretic Dampers
迟滞阻尼器钢框架的耗能分布特性
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10450204 - 财政年份:1998
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$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Effects of Welding Method, Loading Rate, and Loading Sequence on Fracture Behavior of Welded Steel Beam-to-Column Connections
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- 批准号:
08555142 - 财政年份:1996
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07455223 - 财政年份:1995
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Variation of Structural Characteristics of Steel Members Caused by Variation of Steel Materials
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- 批准号:
05452252 - 财政年份:1993
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05555159 - 财政年份:1993
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$ 8.83万 - 项目类别:
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