钢框架膝撑屈服管式阻尼器性能分析:有限元研究

IF 1.1 4区 工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
Liqun Ding, Haibo Jiao
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引用次数: 0

摘要

本研究的主要目的是研究管状阻尼器在膝关节内表现出屈服行为的影响,并评估影响钢框架效能的各种参数。为此,介绍了六种新型屈服金属阻尼器,并随后利用ABAQUS软件进行有限元分析,分析了它们在钢框架内的性能。通过循环加载条件下的静力分析,研究了不同几何参数对阻尼器力学特性和吸能能力的影响。研究结果表明,修改阻尼器的几何形状可以导致高达6%的极限强度和高达8%的屈服强度的变化。此外,三管网格模型在不同结构中屈服强度最高。研究进一步表明,3PIPE型阻尼器的承载力最大,约为371 kN,而PIPE-2L型阻尼器的承载力最小,约为3PIPE型阻尼器承载力的24%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Performance Analysis of Yielding Tubular Dampers in Steel Frame Knee Braces: A Finite Element Study

Performance Analysis of Yielding Tubular Dampers in Steel Frame Knee Braces: A Finite Element Study

The primary objective of this study is to examine the impact of tubular dampers exhibiting yielding behavior within knee braces and to evaluate diverse parameters affecting the efficacy of steel frames. To this end, six novel types of yielding metal dampers were introduced and subsequently analyzed for their performance within steel frames utilizing finite element analysis facilitated by ABAQUS software. Through static analyses conducted under cyclic loading conditions, the influence of various geometric parameters on the mechanical characteristics and energy absorption capabilities of these dampers was investigated. The findings indicate that modifying the damper geometry can result in alterations of up to 6% in ultimate strength and up to 8% in yield strength. Also, the three-tube mesh model showed the highest yield strength among the different configurations that were studied. The study further shows that the model 3PIPE damper developed the highest bearing force, about 371 kN, while the PIPE-2L model damper showed the least bearing force, which is about 24% of that developed by the model 3PIPE damper.

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来源期刊
International Journal of Steel Structures
International Journal of Steel Structures 工程技术-工程:土木
CiteScore
2.70
自引率
13.30%
发文量
122
审稿时长
12 months
期刊介绍: The International Journal of Steel Structures provides an international forum for a broad classification of technical papers in steel structural research and its applications. The journal aims to reach not only researchers, but also practicing engineers. Coverage encompasses such topics as stability, fatigue, non-linear behavior, dynamics, reliability, fire, design codes, computer-aided analysis and design, optimization, expert systems, connections, fabrications, maintenance, bridges, off-shore structures, jetties, stadiums, transmission towers, marine vessels, storage tanks, pressure vessels, aerospace, and pipelines and more.
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