Finite Element Analysis of Vortex Induced Responses of Multistory Rectangular Building
##plugins.themes.bootstrap3.article.sidebar##
PDF
Published
Feb 25, 2018
DOI
Abstract viewed = 26 times
PDF downloaded = 56 times
Section
Articles
##plugins.themes.bootstrap3.article.main##
High-rise buildings may experience high levels of vibrations under the actions of wind which cause building motions, adversely affecting serviceability and occupant comfort. The paper analyzed the vortex shedding responses of a multistory building with moment resisting frame. It presents a numerical model based on computational wind engineering technique to simulate the wind action over a typical high-rise building using wind speed data of Lagos state Nigeria. The vortex shedding frequency of the vortices and the natural frequency of vibration of the entire high-rise building structural system were calculated by computing fast Fourier transform algorithm (FFT) of the force coefficient and finite element analysis (FEA) of the structural system respectively. From the result obtained, the vortex shedding frequency of the wind vortices was lower than the fundamental frequency of vibration of the typical high-rise building. Hence, vortex shedding was not responsible for the failure of high-rise buildings in the locality being considered due to the reasons stated in the author’s conclusion.
Keywords: Vortex Shedding, Computational Fluid Dynamics, Fast Fourier analysis, Finite Element analysis, Natural Frequency, Participation Factor.
References
. G.solari, The role of analytical methods for evaluating the wind induced response of structures, journal of wind engineering in industrial aerodynamics,90 (12-15), 1453-1477, 2002.
. K.Cho , passive viscoelastic damping systems for building, PhD dissertation, Department of civil engineering, Colorado state university, Colorado,1998.
. I.Goisan, P.Eng, Vortex shedding induced loads on free standing structure, citeseerx.ist.psu.edu.
. A.Irwin, Vortices and tall building:A recipe for resonance, American institute of physics,www.physicstoday.org.
. C.V.Okafor,E.C.Mbanusi,K.C.Okolie,D.A.Obodo, Finite element modeling for wind response of aluminum wall cladding in tall building, Advance in science, Technology and Engineering journal,2(4)165-172(2017).
. L.Alexandre, M.Awruch. Aerodynamic analysis of buildings using Numerical tools from computational wind engineering, Asociacion Argentina de mecanica computacional 26(15), 1236-1251,2007.
. J.Franke, A.Hellsten, H.Schlunzen, B.Carrissimo, best practice guidelines for the CFD simulation of flows n urban environment”. COST 732: quality assurance and improvement of micro scale meteorological models. Cost office Brussel, (2007).
. C.V.Okafor , Application of computational fluid dynamics modeling high-rise building wind analysis-a case study, Advance in science, Technology and Engineering journal,2(4)197-203(2017).
. P.Richards & R.Hosey, Appropriate boundary conditions for computational wind engineering model usng the K-e model, J.wind eng.ind.aerod, 46(47),145-153(1993).
. A.Parente, C.Bonocci, On the Rans simulation of neutral ABL flows, The fifth symposium on computational wind engineering, (2010).
. B.Blocken, T.Stathopoulos, J.Carmeliet, CFD simulation of the atmospheric boundary layer: wall function problems, atmos.enviro, 41(2), 228-252.
. G.Behzad,A. Niazmand,S.Fallah , Investigation of harmonic instability of laminar fluid flow past 2D rectangular cross sections with 0.5-4 aspect ratios, journal of mechanical engineering science 228(5)828-839(2014).
. A.Techet, Separated viscious flows & vortex induced vibrations,(2005).
. N.Binti, Analysis of vortex shedding in a various body shapes. M.sc thesis., Universiti Tun H ussein Onn Malaysia,Malaysia(2015).
. B.Taranath, Wind and Earthquake resistant building, 1st ed.Newyork,USA: Marcel Dekker,2005,ch.1,pp.7-9.
. P.Mendis, T.Ngo, N.Haritos, A.Hira, B.Samali, J.Chueng, wind loading on tall building, Journal of structural engineering 2(22),41-54(2007).
Downloads
Download data is not yet available.
##plugins.themes.bootstrap3.article.details##
How to Cite
[1]
Okafor, C. 2018. Finite Element Analysis of Vortex Induced Responses of Multistory Rectangular Building. European Journal of Engineering Research and Science. 3, 2 (Feb. 2018), 35-42. DOI:https://doi.org/10.24018/ejers.2018.3.2.612.
The names and email addresses entered in this journal site will be used exclusively for the stated purposes of this journal and will not be made available for any other purpose or to any other party.
Submission of the manuscript represents that the manuscript has not been published previously and is not considered for publication elsewhere.
