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Innovative Application of Dispersed Shear Wall to a Kilometer-High Concrete Skyscraper

Received: 19 April 2016     Accepted: 23 May 2016     Published: 4 June 2016
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Abstract

There are numerous structural lateral systems used in high-rise building design such as shear frames, frames with shear core, framed tubes, tube and tube, super frames etc. Generally, the structural systems of tall buildings are considered to be two types. One is interior and the other one is exterior type. A system is categorized as an interior structure when the major parts of the lateral load resisting system are located within the interior of the building. Likewise, if the major parts of the lateral load resisting system are located at the building perimeter, the system is categorized as an exterior structure. In this study it is intended to model an advanced structural system which can be applied to buildings taller than the existing tallest building in the world. In this innovative concept, several parallel shear walls have been arranged in both directions and connected with beams and R.C. floor slabs. The shear walls are continuous down to the base to which they are rigidly attached to form vertical cantilevers. Their high in plane stiffness and strength make them well suited for bracing buildings up to about 278 stories. Fewer widely spaced gravity columns are arranged in the core area of the building to carry floor loads. Because of the absence of core bracing and of a large number of heavy interior columns, the net leasable area for such a building increases. Static and Dynamic analysis (Time History Analysis) has been carried out. The drift by static analysis is 1884 mm which is below the allowable limit of 2001.6mm (If considered H/500, where H is the height of the structure [9]). Also it is found by research that, when this structural arrangement is applied to around 830 meter tall structure with aspect ratio 9.8:1, no additional structural supporting system (like Outriggers, Perimeter Belts, Cross Bracing, Tuned Mass Dampers etc.) is required. This shear walls arrangement is applicable for the tall buildings of any height to avoid additional supports to resist the lateral forces while taking advantage of the creative approach of this unique concept.

Published in American Journal of Civil Engineering (Volume 4, Issue 4)
DOI 10.11648/j.ajce.20160404.16
Page(s) 167-173
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), 2016. Published by Science Publishing Group

Keywords

Innovative, High-Rise, Dynamic, Drift, Outriggers, Skyscraper

References
[1] Mir M. Ali (2001). ART OF SKYSCRAPER –THE GENIUS OF FAZLUR KHAN.
[2] Joshua C. Feblowitz. Confusing The Wind: The Burj Khalifa Mother Nature, and the Modern Skyscraper.
[3] Rizk A. S.-CTBUH Technical Paper, Structural Design of Reinforced Concrete Tall Buildings, Published CTBUH Journal issue 1, 2010.
[4] Kareem, Kijewski & Tamura – Mitigation of Motion of Tall Buildings with Specific Examples of Recent Application.
[5] Bryan Stafford Smith & Alex Coull – Tall Building Structures (1991).
[6] Taipei mass damper – Wikipedia, the free encyclopedia.
[7] FRANCIS D. K. – Building Structures Illustrated- Patterns, System, and Design (Second Edition)
[8] Why Tall Buildings Often Considered safer than Low-Rise Buildings During Earthquakes? – CTBUH Journal 2014 Issue III.
[9] ASCE 7-10, Commentary Appendix C, Sec: CC.1.2.
[10] P. Jayachandran, Ph. D, M. ASCE – Design of Tall Buildings– Preliminary Design and Optimization.
[11] Robert Sinn 2012 – Taller: How Future Skyscraper Will Beat the Burj Khalifa.
[12] Kelsey Campbell-Dollaghan – Spire Shame: Why Today’s Tallest Buildings Are Mostly Just Spire.
[13] CTBUH Journal, 2013 Issue III – Tall Buildings in Numbers. Vanity Height: the Empty Space in Todays Tallest.
[14] Tuned mass damper – Wikipedia, the free encyclopedia.
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  • APA Style

    Feroz Alam. (2016). Innovative Application of Dispersed Shear Wall to a Kilometer-High Concrete Skyscraper. American Journal of Civil Engineering, 4(4), 167-173. https://doi.org/10.11648/j.ajce.20160404.16

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    ACS Style

    Feroz Alam. Innovative Application of Dispersed Shear Wall to a Kilometer-High Concrete Skyscraper. Am. J. Civ. Eng. 2016, 4(4), 167-173. doi: 10.11648/j.ajce.20160404.16

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    AMA Style

    Feroz Alam. Innovative Application of Dispersed Shear Wall to a Kilometer-High Concrete Skyscraper. Am J Civ Eng. 2016;4(4):167-173. doi: 10.11648/j.ajce.20160404.16

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  • @article{10.11648/j.ajce.20160404.16,
      author = {Feroz Alam},
      title = {Innovative Application of Dispersed Shear Wall to a Kilometer-High Concrete Skyscraper},
      journal = {American Journal of Civil Engineering},
      volume = {4},
      number = {4},
      pages = {167-173},
      doi = {10.11648/j.ajce.20160404.16},
      url = {https://doi.org/10.11648/j.ajce.20160404.16},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20160404.16},
      abstract = {There are numerous structural lateral systems used in high-rise building design such as shear frames, frames with shear core, framed tubes, tube and tube, super frames etc. Generally, the structural systems of tall buildings are considered to be two types. One is interior and the other one is exterior type. A system is categorized as an interior structure when the major parts of the lateral load resisting system are located within the interior of the building. Likewise, if the major parts of the lateral load resisting system are located at the building perimeter, the system is categorized as an exterior structure. In this study it is intended to model an advanced structural system which can be applied to buildings taller than the existing tallest building in the world. In this innovative concept, several parallel shear walls have been arranged in both directions and connected with beams and R.C. floor slabs. The shear walls are continuous down to the base to which they are rigidly attached to form vertical cantilevers. Their high in plane stiffness and strength make them well suited for bracing buildings up to about 278 stories. Fewer widely spaced gravity columns are arranged in the core area of the building to carry floor loads. Because of the absence of core bracing and of a large number of heavy interior columns, the net leasable area for such a building increases. Static and Dynamic analysis (Time History Analysis) has been carried out. The drift by static analysis is 1884 mm which is below the allowable limit of 2001.6mm (If considered H/500, where H is the height of the structure [9]). Also it is found by research that, when this structural arrangement is applied to around 830 meter tall structure with aspect ratio 9.8:1, no additional structural supporting system (like Outriggers, Perimeter Belts, Cross Bracing, Tuned Mass Dampers etc.) is required. This shear walls arrangement is applicable for the tall buildings of any height to avoid additional supports to resist the lateral forces while taking advantage of the creative approach of this unique concept.},
     year = {2016}
    }
    

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  • TY  - JOUR
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    AU  - Feroz Alam
    Y1  - 2016/06/04
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    DO  - 10.11648/j.ajce.20160404.16
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    JF  - American Journal of Civil Engineering
    JO  - American Journal of Civil Engineering
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    VL  - 4
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Author Information
  • Department of Civil Engineering, The Institute of Engineers, Dhaka, Bangladesh

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