Location of Semi-Rigid Connection Effect On The Seismic Performance of Steel Frame Structures

IF 0.7 Q4 ENGINEERING, CIVIL

Electronic Journal of Structural Engineering Pub Date : 2021-12-28 DOI:10.21203/rs.3.rs-1183780/v1

E. Elhout

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Abstract

In design steel frames, combining semi-rigid and rigid connections can result in better structural performance, particularly in seismic locations. In this study, the effects of semi-rigid beam-to-column connections located on the seismic performance of steel frame structures are investigated. The analysis uses six and twelve-story moment resisting steel frames (MRSF) with rigid, semi-rigid, and dual beam-column connections. These frames are designed according to the Egyptian design codes. Drain-2Dx computer program and seven earthquake ground motions are used in the non-linear dynamic analysis. The rotational stiffness of beam-to-column connections is indicated through the end fixity factors with a value equal to 0.6. The performances of these frames are evaluated through the roof drift ratio (RDR), the maximum story drift ratios (SDR), and the maximum column axial compression force (MACF). The results indicated that the quantities of fundamental periods, roof drift ratio, the story drift ratio, and the column axial compression force are related to stiffness, rigidity, and the number of semi-rigid connections in steel frames.

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半刚性连接位置对钢框架结构抗震性能的影响

在设计钢框架时，将半刚性和刚性连接结合起来可以获得更好的结构性能，尤其是在地震位置。本文研究了半刚性梁柱连接对钢框架结构抗震性能的影响。该分析使用了具有刚性、半刚性和双梁柱连接的六层和十二层抗弯钢框架（MRSF）。这些框架是根据埃及设计规范设计的。采用Drain-2Dx计算机程序和七次地震动进行非线性动力分析。梁柱连接的旋转刚度通过端部固定系数表示，其值等于0.6。通过屋顶滑移率（RDR）、最大层间滑移率（SDR）和最大柱轴向压缩力（MACF）来评估这些框架的性能。结果表明，基本周期、屋面滑移率、层间滑移率和柱轴压力的大小与钢框架的刚度、刚度和半刚性连接的数量有关。

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

Electronic Journal of Structural Engineering Engineering-Civil and Structural Engineering

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： The Electronic Journal of Structural Engineering (EJSE) is an international forum for the dissemination and discussion of leading edge research and practical applications in Structural Engineering. It comprises peer-reviewed technical papers, discussions and comments, and also news about conferences, workshops etc. in Structural Engineering. Original papers are invited from individuals involved in the field of structural engineering and construction. The areas of special interests include the following, but are not limited to: Analytical and design methods Bridges and High-rise Buildings Case studies and failure investigation Innovations in design and new technology New Construction Materials Performance of Structures Prefabrication Technology Repairs, Strengthening, and Maintenance Stability and Scaffolding Engineering Soil-structure interaction Standards and Codes of Practice Structural and solid mechanics Structural Safety and Reliability Testing Technologies Vibration, impact and structural dynamics Wind and earthquake engineering. EJSE is seeking original papers (research or state-of the art reviews) of the highest quality for consideration for publication. The papers will be published within 3 to 6 months. The papers are expected to make a significant contribution to the research and development activities of the academic and professional engineering community.