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Research on the Vertical Setback Problem of Steel Bundled Tube Structure

Received: 13 August 2017     Published: 14 August 2017
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Abstract

To study the mechanical performance of steel bundled-tube structures and find the reasonable setback scheme, the 18 calculation model with different setback based on the same bottom, height as well as the volume were designed. The effect of different setback methods on performance indexes such as natural vibration period of the structure, stiffness was analyzed. Stress total enhancement ratio and reference enhancement ratio are introduced to study the distribution rule of the spandrel beam stress under different vertical setback methods. The distribution rule of column stress was also analyzed. The results show that the changing rule of the equivalent wind effect coefficient is the same as the basal shearing force and basal anti-overturning moment. Reference enhancement ratio of the spandrel beam is a fixed value at a certain height and volume. Total stress enhancement ratio of the spandrel beam is mainly related to the remained height. Vertical setback causes abrupt stress in the columns. The setback influence on the columns is less than that on the beams, and the abrupt stress stories are also less. It is advised that the location of the initial setback should be as far as possible from the embedded end. The reasonable setback method should be uniform and symmetric.

Published in American Journal of Civil Engineering (Volume 5, Issue 4)
DOI 10.11648/j.ajce.20170504.17
Page(s) 235-241
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), 2017. Published by Science Publishing Group

Keywords

Steel Bundled-Tube, Vertical Setback, Mechanical Performance, Stress Enhancement Ratio

References
[1] Federal Emergency Management Agency. FEMA 368: NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures [S]. Federal Emergency Management Agency, Washington, D. C., 2001.
[2] JGJ 3-2010 Technical specification for concrete structures of tall building [S]. Beijing China Architecture and Building Press, 2010 (in Chinese).
[3] Kayikci, D. The Behavior of Moment Resisting Steel Frame Under Seismic Excitation With Variation of the Geometric Dimensions of Architectural Setbacks [D]. Ph. D. Thesis, UniveLsity of Miami, 2011.
[4] Al-Ali, A. A . K., Krawinkler, H. Effect of Vertical Irregularities on Seismic Behavior of Building Structures [D]. Ph. D. Thesis, Stanford University, 1998.
[5] Varadharajan, S., Sehgal, V. K, Saini, B. Determination of Inelastic Seismic Demands of RC Moment Resisting Setback Frames [J]. Archives of Civil and Mechanical Engineering, 2013, (13): 370-393.
[6] Aranda, G. R. Ductility Demands for R/C frames Irregular in Elevation [C]. Proceedings of the 8th World Conference on Earthquake Engineering, San Francisco, California U.S.A., 1984.
[7] wood, S. L. Seismic Response of RC Frames With Irregular Profiles [J]. Journal of Structure Engineering, 1992, 118 (2): 545-566.
[8] H. Shakib and M. Pirizadeh. Probabilistic Seismic Performance Assessment of Setback Buildings under Bidirectional Excitation [J]. Journal of Structure Engineering, 2014, 140 (2): 04013061 1-11.
[9] Montazeri, S. M., Khaledi, F., Kheyroddin, A. A Study on Steel Monment Resisting Frames with Setbacks: Dynamic Properties [C]. Proceedings of the 15th World Conference of Earthquake Engineering, Lisboa, Portugal, 2012.
[10] Xiao C Z, Xu P F, Wang C K. Research on the Influence of Setback to Seismic Performance of High-rise Building Structures [J]. Building Structure, 2003, 33 (9): 12-15. (in Chinese).
[11] Yao J F, Hou Y Q, Wu S C, et al. Structural design of a super high-rise building with setback shape in Tianjin [J]. Building Structure, 2014, 44 (24): 25-30. (in Chinese).
[12] Lu D Y, Liu C, Jiang W W, et al. Influence analysis of the setback on the seismic performance of the multiple complicated super high-rise structure [J]. Building Structure, 2014, 44 (18): 14-17. (in Chinese).
[13] Su N F, Lv X L, Zhou Y, et al. Seismic behavior of super-tall building with setbacks in elevation [J]. Journal of Zhejiang University 2012, 46 (10): 1893-1899. (in Chinese).
Cite This Article
  • APA Style

    Hao Yong, Li Yansong, Jiu Zhenggang, Zhang Tao, Wang Futian, et al. (2017). Research on the Vertical Setback Problem of Steel Bundled Tube Structure. American Journal of Civil Engineering, 5(4), 235-241. https://doi.org/10.11648/j.ajce.20170504.17

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    ACS Style

    Hao Yong; Li Yansong; Jiu Zhenggang; Zhang Tao; Wang Futian, et al. Research on the Vertical Setback Problem of Steel Bundled Tube Structure. Am. J. Civ. Eng. 2017, 5(4), 235-241. doi: 10.11648/j.ajce.20170504.17

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    AMA Style

    Hao Yong, Li Yansong, Jiu Zhenggang, Zhang Tao, Wang Futian, et al. Research on the Vertical Setback Problem of Steel Bundled Tube Structure. Am J Civ Eng. 2017;5(4):235-241. doi: 10.11648/j.ajce.20170504.17

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  • @article{10.11648/j.ajce.20170504.17,
      author = {Hao Yong and Li Yansong and Jiu Zhenggang and Zhang Tao and Wang Futian and Zhang Xusheng},
      title = {Research on the Vertical Setback Problem of Steel Bundled Tube Structure},
      journal = {American Journal of Civil Engineering},
      volume = {5},
      number = {4},
      pages = {235-241},
      doi = {10.11648/j.ajce.20170504.17},
      url = {https://doi.org/10.11648/j.ajce.20170504.17},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20170504.17},
      abstract = {To study the mechanical performance of steel bundled-tube structures and find the reasonable setback scheme, the 18 calculation model with different setback based on the same bottom, height as well as the volume were designed. The effect of different setback methods on performance indexes such as natural vibration period of the structure, stiffness was analyzed. Stress total enhancement ratio and reference enhancement ratio are introduced to study the distribution rule of the spandrel beam stress under different vertical setback methods. The distribution rule of column stress was also analyzed. The results show that the changing rule of the equivalent wind effect coefficient is the same as the basal shearing force and basal anti-overturning moment. Reference enhancement ratio of the spandrel beam is a fixed value at a certain height and volume. Total stress enhancement ratio of the spandrel beam is mainly related to the remained height. Vertical setback causes abrupt stress in the columns. The setback influence on the columns is less than that on the beams, and the abrupt stress stories are also less. It is advised that the location of the initial setback should be as far as possible from the embedded end. The reasonable setback method should be uniform and symmetric.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Research on the Vertical Setback Problem of Steel Bundled Tube Structure
    AU  - Hao Yong
    AU  - Li Yansong
    AU  - Jiu Zhenggang
    AU  - Zhang Tao
    AU  - Wang Futian
    AU  - Zhang Xusheng
    Y1  - 2017/08/14
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ajce.20170504.17
    DO  - 10.11648/j.ajce.20170504.17
    T2  - American Journal of Civil Engineering
    JF  - American Journal of Civil Engineering
    JO  - American Journal of Civil Engineering
    SP  - 235
    EP  - 241
    PB  - Science Publishing Group
    SN  - 2330-8737
    UR  - https://doi.org/10.11648/j.ajce.20170504.17
    AB  - To study the mechanical performance of steel bundled-tube structures and find the reasonable setback scheme, the 18 calculation model with different setback based on the same bottom, height as well as the volume were designed. The effect of different setback methods on performance indexes such as natural vibration period of the structure, stiffness was analyzed. Stress total enhancement ratio and reference enhancement ratio are introduced to study the distribution rule of the spandrel beam stress under different vertical setback methods. The distribution rule of column stress was also analyzed. The results show that the changing rule of the equivalent wind effect coefficient is the same as the basal shearing force and basal anti-overturning moment. Reference enhancement ratio of the spandrel beam is a fixed value at a certain height and volume. Total stress enhancement ratio of the spandrel beam is mainly related to the remained height. Vertical setback causes abrupt stress in the columns. The setback influence on the columns is less than that on the beams, and the abrupt stress stories are also less. It is advised that the location of the initial setback should be as far as possible from the embedded end. The reasonable setback method should be uniform and symmetric.
    VL  - 5
    IS  - 4
    ER  - 

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Author Information
  • The Key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing, China

  • College of Civil Engineering, Hebei Insititute of Architecture and Civil Engineering, Zhangjiakou, China

  • College of Civil Engineering, Hebei Insititute of Architecture and Civil Engineering, Zhangjiakou, China

  • Department of Building Engineering, Qiqihar Insititute of Engineering, Qiqihar, China

  • Zhangjiakou City High-Grade Highway Asset Management Center, Zhangjiakou, China

  • Zhangjiakou City High-Grade Highway Asset Management Center, Zhangjiakou, China

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