Coherence of fluctuating wind speed and Along-Wind force power spectrum of tall building

Yong Chul Kim; Sung Won Yoon

doi:10.4028/www.scientific.net/AMR.1025-1026.922

Coherence of fluctuating wind speed and Along-Wind force power spectrum of tall building

Yong Chul Kim
, Sung Won Yoon

School of Architecture

Korea University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In evaluating wind load effects on large-scale structures, correlations in the frequency domain (i.e., coherences) and power spectra of fluctuating wind speed should be evaluated in advance. Most existing formulas for coherence are expressed as exponential functions based on field measurement data for ease of mathematical treatment. However, these simple mathematical expressions have many limitations. In the present study, after examining the existing coherence formulas, a semi-theoretical formula was proposed, and the corresponding along-wind force power spectrum of a tall building with a square cross-section was numerically calculated. A comparison showed that both the coherence and along-wind power spectrum were in good agreement with those of actual wind tunnel data.

Original language	English
Title of host publication	Advanced Materials, Structures and Mechanical Engineering
Editors	H.M. Song, H.K. Son, Jong Wan Hu
Publisher	Trans Tech Publications Ltd
Pages	922-925
Number of pages	4
ISBN (Electronic)	9783038352549
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.1025-1026.922
State	Published - 2014
Event	2014 International Conference on Advanced Materials, Structures and Mechanical Engineering, ICAMSME 2014 - Incheon, Korea, Republic of Duration: 3 May 2014 → 4 May 2014

Publication series

Name	Advanced Materials Research
Volume	1025-1026
ISSN (Print)	1022-6680
ISSN (Electronic)	1662-8985

Conference

Conference	2014 International Conference on Advanced Materials, Structures and Mechanical Engineering, ICAMSME 2014
Country/Territory	Korea, Republic of
City	Incheon
Period	3/05/14 → 4/05/14

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Along-wind Force Power Spectrum
Coherence of Wind Speed
Tall Building
Wind Tunnel Test

Access to Document

10.4028/www.scientific.net/AMR.1025-1026.922

Cite this

Kim, Y. C., & Yoon, S. W. (2014). Coherence of fluctuating wind speed and Along-Wind force power spectrum of tall building. In H. M. Song, H. K. Son, & J. W. Hu (Eds.), Advanced Materials, Structures and Mechanical Engineering (pp. 922-925). (Advanced Materials Research; Vol. 1025-1026). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMR.1025-1026.922

@inproceedings{e167fe2a3d804f33ba8a814681bccafa,

title = "Coherence of fluctuating wind speed and Along-Wind force power spectrum of tall building",

abstract = "In evaluating wind load effects on large-scale structures, correlations in the frequency domain (i.e., coherences) and power spectra of fluctuating wind speed should be evaluated in advance. Most existing formulas for coherence are expressed as exponential functions based on field measurement data for ease of mathematical treatment. However, these simple mathematical expressions have many limitations. In the present study, after examining the existing coherence formulas, a semi-theoretical formula was proposed, and the corresponding along-wind force power spectrum of a tall building with a square cross-section was numerically calculated. A comparison showed that both the coherence and along-wind power spectrum were in good agreement with those of actual wind tunnel data.",

keywords = "Along-wind Force Power Spectrum, Coherence of Wind Speed, Tall Building, Wind Tunnel Test",

author = "Kim, \{Yong Chul\} and Yoon, \{Sung Won\}",

note = "Publisher Copyright: {\textcopyright} 2014 Trans Tech Publications, Switzerland.; 2014 International Conference on Advanced Materials, Structures and Mechanical Engineering, ICAMSME 2014 ; Conference date: 03-05-2014 Through 04-05-2014",

year = "2014",

doi = "10.4028/www.scientific.net/AMR.1025-1026.922",

language = "English",

series = "Advanced Materials Research",

publisher = "Trans Tech Publications Ltd",

pages = "922--925",

editor = "H.M. Song and H.K. Son and Hu, \{Jong Wan\}",

booktitle = "Advanced Materials, Structures and Mechanical Engineering",

}

Kim, YC & Yoon, SW 2014, Coherence of fluctuating wind speed and Along-Wind force power spectrum of tall building. in HM Song, HK Son & JW Hu (eds), Advanced Materials, Structures and Mechanical Engineering. Advanced Materials Research, vol. 1025-1026, Trans Tech Publications Ltd, pp. 922-925, 2014 International Conference on Advanced Materials, Structures and Mechanical Engineering, ICAMSME 2014, Incheon, Korea, Republic of, 3/05/14. https://doi.org/10.4028/www.scientific.net/AMR.1025-1026.922

Coherence of fluctuating wind speed and Along-Wind force power spectrum of tall building. / Kim, Yong Chul; Yoon, Sung Won.
Advanced Materials, Structures and Mechanical Engineering. ed. / H.M. Song; H.K. Son; Jong Wan Hu. Trans Tech Publications Ltd, 2014. p. 922-925 (Advanced Materials Research; Vol. 1025-1026).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Coherence of fluctuating wind speed and Along-Wind force power spectrum of tall building

AU - Kim, Yong Chul

AU - Yoon, Sung Won

PY - 2014

Y1 - 2014

N2 - In evaluating wind load effects on large-scale structures, correlations in the frequency domain (i.e., coherences) and power spectra of fluctuating wind speed should be evaluated in advance. Most existing formulas for coherence are expressed as exponential functions based on field measurement data for ease of mathematical treatment. However, these simple mathematical expressions have many limitations. In the present study, after examining the existing coherence formulas, a semi-theoretical formula was proposed, and the corresponding along-wind force power spectrum of a tall building with a square cross-section was numerically calculated. A comparison showed that both the coherence and along-wind power spectrum were in good agreement with those of actual wind tunnel data.

AB - In evaluating wind load effects on large-scale structures, correlations in the frequency domain (i.e., coherences) and power spectra of fluctuating wind speed should be evaluated in advance. Most existing formulas for coherence are expressed as exponential functions based on field measurement data for ease of mathematical treatment. However, these simple mathematical expressions have many limitations. In the present study, after examining the existing coherence formulas, a semi-theoretical formula was proposed, and the corresponding along-wind force power spectrum of a tall building with a square cross-section was numerically calculated. A comparison showed that both the coherence and along-wind power spectrum were in good agreement with those of actual wind tunnel data.

KW - Along-wind Force Power Spectrum

KW - Coherence of Wind Speed

KW - Tall Building

KW - Wind Tunnel Test

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U2 - 10.4028/www.scientific.net/AMR.1025-1026.922

DO - 10.4028/www.scientific.net/AMR.1025-1026.922

M3 - Conference contribution

AN - SCOPUS:84913543119

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EP - 925

BT - Advanced Materials, Structures and Mechanical Engineering

A2 - Song, H.M.

A2 - Son, H.K.

A2 - Hu, Jong Wan

PB - Trans Tech Publications Ltd

T2 - 2014 International Conference on Advanced Materials, Structures and Mechanical Engineering, ICAMSME 2014

Y2 - 3 May 2014 through 4 May 2014

ER -

Coherence of fluctuating wind speed and Along-Wind force power spectrum of tall building

Abstract

Publication series

Conference

UN SDGs

Keywords

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