Hysteresis damping ratio for moment steel frame evaluation using DDBD

Q3 Engineering

Pollack Periodica Pub Date : 2023-10-05 DOI:10.1556/606.2023.00936

Hussein Kareem Sultan

引用次数: 0

Abstract

Abstract The main purpose of this paper is to propose a model for estimating the hysteresis damping ratio of moment steel frames and compare them with the results obtained using direct displacement-based design. In this study, different models of steel bending frames were examined by using several type of analysis to obtain this ratio. Thirty-steel frame models with 3, 6, 9, 12, and 15 floors and 3 and 6 bay with 6 m span length were analyzed and evaluated. The results showed that the equivalent damping ratio at the level of safety based on Jacobsen and Jennings, and the values of the equivalent damping relationships according to FEMA-440 vary from the empirical formula proposed in displacement-based design-2012. Therefore, in the ductility domain the exponential relationship form was more consistent with the results used. A new formula was proposed to calculate the hysteresis damping ratio, and it is more accurate than the empirical formula proposed in displacement-based design-2012.

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用DDBD法评价弯矩钢框架的滞回阻尼比

摘要本文的主要目的是提出一种估算弯矩钢框架滞回阻尼比的模型，并将其与直接基于位移的设计结果进行比较。在本研究中，采用几种类型的分析方法对不同模型的钢弯曲框架进行了检验，以获得该比率。对3层、6层、9层、12层和15层、跨度为6 m的3层和6层钢框架模型进行了分析和评价。结果表明，基于Jacobsen和Jennings的安全水平等效阻尼比，以及基于FEMA-440的等效阻尼关系值与基于位移设计-2012中提出的经验公式存在差异。因此，在延性域，指数关系形式更符合所使用的结果。提出了一种新的滞回阻尼比计算公式，该公式比基于位移设计的经验公式(2012)更准确。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pollack Periodica Engineering-Civil and Structural Engineering

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： Pollack Periodica is an interdisciplinary, peer-reviewed journal that provides an international forum for the presentation, discussion and dissemination of the latest advances and developments in engineering and informatics. Pollack Periodica invites papers reporting new research and applications from a wide range of discipline, including civil, mechanical, electrical, environmental, earthquake, material and information engineering. The journal aims at reaching a wider audience, not only researchers, but also those likely to be most affected by research results, for example designers, fabricators, specialists, developers, computer scientists managers in academic, governmental and industrial communities.