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Study of Eccentric and Buckling-Restrained Bracing Systems Used in Frames

Received: 16 May 2021     Accepted: 15 August 2021     Published: 31 August 2021
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Abstract

The present paper studies eccentric braces (EBs) and buckling-restrained braces (BRBs) used in steel frames. The eccentrically braced frames (EBFs) and buckling-restrained braced frames (BRBFs) that have respectively employed the EBs and BRBs are considered with different types of links as shear, moment-shear and moment links depending on their link length which is an important factor in the design of the EBFs and BRBFs. The BRB consists of a steel core and its surrounding steel tube filled with concrete. The concrete confinement prevents buckling of the steel core. The analysed EBFs and BRBFs by the finite element software ABAQUS under earthquake records are taken into account. Effects of the links of the EBFs and BRBFs on the performance of the frames are discussed. The results uncover that most of the lateral displacements of the EBFs and BRBFs having the shear link are smaller than their counterparts having the moment-shear and moment links, whilst, all the base shear capacities of the former are the greatest. However, majority of the EBFs and BRBFs with the moment link dissipate less energy than their counterparts with the shear and moment-shear links, whereas, most of the link rotations of the former are smaller than the latter. In addition, the BRBFs generally demonstrate better performance than their EBF counterparts.

Published in Journal of Civil, Construction and Environmental Engineering (Volume 6, Issue 4)
DOI 10.11648/j.jccee.20210604.13
Page(s) 120-125
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Frame, Brace, Steel, Concrete, Eccentric, Buckling

References
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  • APA Style

    Alireza Bahrami. (2021). Study of Eccentric and Buckling-Restrained Bracing Systems Used in Frames. Journal of Civil, Construction and Environmental Engineering, 6(4), 120-125. https://doi.org/10.11648/j.jccee.20210604.13

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    ACS Style

    Alireza Bahrami. Study of Eccentric and Buckling-Restrained Bracing Systems Used in Frames. J. Civ. Constr. Environ. Eng. 2021, 6(4), 120-125. doi: 10.11648/j.jccee.20210604.13

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    AMA Style

    Alireza Bahrami. Study of Eccentric and Buckling-Restrained Bracing Systems Used in Frames. J Civ Constr Environ Eng. 2021;6(4):120-125. doi: 10.11648/j.jccee.20210604.13

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  • @article{10.11648/j.jccee.20210604.13,
      author = {Alireza Bahrami},
      title = {Study of Eccentric and Buckling-Restrained Bracing Systems Used in Frames},
      journal = {Journal of Civil, Construction and Environmental Engineering},
      volume = {6},
      number = {4},
      pages = {120-125},
      doi = {10.11648/j.jccee.20210604.13},
      url = {https://doi.org/10.11648/j.jccee.20210604.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jccee.20210604.13},
      abstract = {The present paper studies eccentric braces (EBs) and buckling-restrained braces (BRBs) used in steel frames. The eccentrically braced frames (EBFs) and buckling-restrained braced frames (BRBFs) that have respectively employed the EBs and BRBs are considered with different types of links as shear, moment-shear and moment links depending on their link length which is an important factor in the design of the EBFs and BRBFs. The BRB consists of a steel core and its surrounding steel tube filled with concrete. The concrete confinement prevents buckling of the steel core. The analysed EBFs and BRBFs by the finite element software ABAQUS under earthquake records are taken into account. Effects of the links of the EBFs and BRBFs on the performance of the frames are discussed. The results uncover that most of the lateral displacements of the EBFs and BRBFs having the shear link are smaller than their counterparts having the moment-shear and moment links, whilst, all the base shear capacities of the former are the greatest. However, majority of the EBFs and BRBFs with the moment link dissipate less energy than their counterparts with the shear and moment-shear links, whereas, most of the link rotations of the former are smaller than the latter. In addition, the BRBFs generally demonstrate better performance than their EBF counterparts.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Study of Eccentric and Buckling-Restrained Bracing Systems Used in Frames
    AU  - Alireza Bahrami
    Y1  - 2021/08/31
    PY  - 2021
    N1  - https://doi.org/10.11648/j.jccee.20210604.13
    DO  - 10.11648/j.jccee.20210604.13
    T2  - Journal of Civil, Construction and Environmental Engineering
    JF  - Journal of Civil, Construction and Environmental Engineering
    JO  - Journal of Civil, Construction and Environmental Engineering
    SP  - 120
    EP  - 125
    PB  - Science Publishing Group
    SN  - 2637-3890
    UR  - https://doi.org/10.11648/j.jccee.20210604.13
    AB  - The present paper studies eccentric braces (EBs) and buckling-restrained braces (BRBs) used in steel frames. The eccentrically braced frames (EBFs) and buckling-restrained braced frames (BRBFs) that have respectively employed the EBs and BRBs are considered with different types of links as shear, moment-shear and moment links depending on their link length which is an important factor in the design of the EBFs and BRBFs. The BRB consists of a steel core and its surrounding steel tube filled with concrete. The concrete confinement prevents buckling of the steel core. The analysed EBFs and BRBFs by the finite element software ABAQUS under earthquake records are taken into account. Effects of the links of the EBFs and BRBFs on the performance of the frames are discussed. The results uncover that most of the lateral displacements of the EBFs and BRBFs having the shear link are smaller than their counterparts having the moment-shear and moment links, whilst, all the base shear capacities of the former are the greatest. However, majority of the EBFs and BRBFs with the moment link dissipate less energy than their counterparts with the shear and moment-shear links, whereas, most of the link rotations of the former are smaller than the latter. In addition, the BRBFs generally demonstrate better performance than their EBF counterparts.
    VL  - 6
    IS  - 4
    ER  - 

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Author Information
  • Department of Building Engineering, Energy Systems and Sustainability Science, Faculty of Engineering and Sustainable Development, University of G?vle, G?vle, Sweden

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