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Analysis on Fracture Behavior and Optimization of Beam-Column Connections with Expanded Flanges of Steel Frames
Joint Authors
Guo, Kai
Zhang, Zhen
Ma, Hongwei
Wang, Kun
Wang, Fuzhang
Liu, Yan
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-01
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
In this study, the parameters of concave expanded flanges of beam-column connections of steel frames are optimized based on the effects of different sizes of concave expanded flanges on the fracture performance.
Firstly, two beam-column connection models with concave expanded flanges are built and analyzed under cyclic loads, which have the same conditions as the specimens during the previous test.
Secondly, the validity of the numerical simulation models is verified through analyzing the hysteretic behaviors of the connections with concave expanded flanges, such as the plastic hinge position, the hysteresis curves, the skeleton curves, the stiffness degradation, the ductility coefficient, and the energy dissipation capacity.
Thirdly, in order to comprehensively evaluate the fracture status of metal materials, the relevant fracture evaluation index (the stress triaxiality ratio (Rσ), plastic equivalent strain index (PI), and cracking index (RI)) are introduced.
Afterwards, eighteen numerical simulation models with differences in the length la of the reinforced section, the length lb of the transition section, and the width c of the reinforced section were analyzed.
Finally, the parameters of the concave expanded flanges of the beam-column connections are optimized based on the results of the three fracture evaluation index.
American Psychological Association (APA)
Ma, Hongwei& Zhang, Zhen& Wang, Kun& Liu, Yan& Guo, Kai& Wang, Fuzhang. 2020. Analysis on Fracture Behavior and Optimization of Beam-Column Connections with Expanded Flanges of Steel Frames. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1123851
Modern Language Association (MLA)
Ma, Hongwei…[et al.]. Analysis on Fracture Behavior and Optimization of Beam-Column Connections with Expanded Flanges of Steel Frames. Advances in Civil Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1123851
American Medical Association (AMA)
Ma, Hongwei& Zhang, Zhen& Wang, Kun& Liu, Yan& Guo, Kai& Wang, Fuzhang. Analysis on Fracture Behavior and Optimization of Beam-Column Connections with Expanded Flanges of Steel Frames. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1123851
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123851