i-manager Publications

Effect of Corner Modifications on Wind-Induced Responses of Tall Buildings

Shankar H. Sanni*, Prabhu Gurunathappa Sheelvantar**

* Department of Civil Engineering, Basaveshwar Engineering College, Bagalkot, Karnataka, India.

** Manipal Institute of Technology, MAHE, Manipal, Karnataka, India.

Periodicity:December - February'2022
DOI : https://doi.org/10.26634/jste.10.4.18408

Abstract

Any tall building subjected to high-speed winds will tilt and crack unless precautionary measures are taken. Various active and passive control methods are proposed to control the wind induced responses of the tall buildings. These tall structures can be made aerodynamic by modifying the external geometry of the building. In the present study, minor geometrical modifications are rendered to the structures. G+30 storeys are considered for each model with constant plan layout. The location of the building is considered to be Bengaluru and corresponding wind load data is considered. Modeling and analysis is carried out using ETABS 2017 software. Wind load analysis is carried out to know the effect of these aerodynamic modifications. The parameters considered for the comparison are storey displacement, natural time period and overturning moment. On comparative analysis, it was observed that wind-induced responses of these geometrically modified buildings have reduced by 5% to 10%. It can also be concluded that minor modifications have shown significantly better performance than a conventional square-plan building in addition to an innovative architectural look.

Keywords

Geometrical Modification, Aerodynamic Modification, Corner Recession, Corner Chamfering, Storey Displacement, Natural Time Period, Overturning Moment.

How to Cite this Article?

Sanni, S. H., and Sheelvantar, P. G. (2022). Effect of Corner Modifications on Wind-Induced Responses of Tall Buildings. i-manager’s Journal on Structural Engineering, 10(4), 44-53. https://doi.org/10.26634/jste.10.4.18408

References

[1]. Alaghmandan, M., Abdolhossein-Pour, F., & Mohammadi, J. (2013). Innovative design method of tall buildings. Cutting Edge: 47th International Conference of the Architectural Science Association (ANZAScA), 525-534.

[2]. Amin, J. A., & Ahuja, A. K. (2010). Aerodynamic modifications to the shape of the buildings: A review of the State-of-the-Art. Asian Journal of Civil Engineering (Building and Housing),11(4), 433-450.

[3]. Ilgın, H. E., &Günel, M. H. (2007). The role of aerodynamic modifications in the form of tall buildings against wind excitation. METU Journal of the Faculty of Architecture, 24(2), 17-25.

[4]. Jafari, M., &Alipour, A. (2021). Methodologies to mitigate wind-induced vibration of tall buildings: A stateof- the-art review. Journal of Building Engineering, 33, 101582. https://doi.org/10.1016/j.jobe.2020.101582

[5]. Kim, Y. C., Xu, X., Yang, Q., & Tamura, Y. (2019). Shape effects on aerodynamic and pedestrian-level wind characteristics and optimization for tall and super-tall building design. International Journal of High-Rise Buildings, 8(4), 235-253. https://doi.org/10.21022/IJHRB.2019.8.4.235

[6]. Mills, F. (2018). How Tall Buildings Tame the Wind. Retrieved from https://www.theb1m.com/video/how-tallbuildings-tame-the-wind

[7]. Mooneghi, M. A., &Kargarmoakhar, R. (2016). Aerodynamic mitigation and shape optimization of buildings. Journal of Building Engineering, 6, 225-235. https://doi.org/10.1016/j.jobe.2016.01.009

[8]. Sharma, A., Mittal, H., &Gairola, A. (2018). Mitigation of wind load on tall buildings through aerodynamic modifications. Journal of Building Engineering, 18, 180- 194. https://doi.org/10.1016/j.jobe.2018.03.005

[9]. Tanaka, H., Tamura, Y., Ohtake, K., Nakai, M., & Kim, Y. C. (2012). Experimental investigation of aerodynamic forces and wind pressures acting on tall buildings with various unconventional configurations. Journal of Wind Engineering and Industrial Aerodynamics, 107, 179-191. https://doi.org/10.1016/j.jweia.2012.04.014

[10]. Xie, J. (2014). Aerodynamic optimization of supertall buildings and its effectiveness assessment. Journal of Wind Engineering and Industrial Aerodynamics, 130, 88-98. https://doi.org/10.1016/j.jweia.2014.04.004

If you have access to this article please login to view the article or kindly login to purchase the article

Single Article

	North Americas,UK, Middle East,Europe		India	Rest of world
	USD	EUR	INR	USD-ROW
Online	15	15

ADD TO CART

Options for accessing this content:

If you would like institutional access to this content, please recommend the title to your librarian.
If you already have i-manager's user account: Login above and proceed to purchase the article.
New Users: Please register, then proceed to purchase the article.