Wind and Structures

  • 제11권1호
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  • Pages.1-18
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  • 2008
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Interference effects in a group of tall buildings closely arranged in an L- or T-shaped pattern

  • Zhao, J.G. (Department of Civil Engineering, University of Hong Kong) ;
  • Lam, K.M. (Department of Civil Engineering, University of Hong Kong)
  • 투고 : 2006.12.26
  • 심사 : 2008.01.11
  • 발행 : 2008.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Interference effects in five square tall buildings arranged in an L- or T-shaped pattern are investigated in the wind tunnel. Mean and fluctuating shear forces, overturning moments and torsional moment are measured on each building with a force balance mounted at its base. Results are obtained at two values of clear separation between adjacent buildings, at half and a quarter building breadth. It is found that strong interference effect exists on all member buildings, resulting in significant modifications of wind loads as compared with the isolated single building case. Sheltering effect is observed on wind loads acting along the direction of an arm of the "L" or "T" on the inner buildings. However, increase in these wind loads from the isolated single building case is found on the most upwind edge building in the arm when wind blows at a slight oblique angle to the arm. The corner formed by two arms of buildings results in some wind catchment effect leading to increased wind pressure on windward building faces. Interesting interference phenomena such as negative drag force are reported. Interference effects on wind load fluctuations, load spectra and dynamic building responses are also studied and discussed.

키워드

참고문헌

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피인용 문헌

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  2. Interference effects on local peak pressures between two buildings vol.99, pp.5, 2011, https://doi.org/10.1016/j.jweia.2011.02.007
  3. Interference effects between two rectangular-section high-rise buildings on local peak pressure coefficients vol.37, 2013, https://doi.org/10.1016/j.jfluidstructs.2012.11.007
  4. Wind load effects and equivalent static wind loads of three-tower connected tall buildings based on wind tunnel tests vol.58, pp.6, 2016, https://doi.org/10.12989/sem.2016.58.6.967
  5. Downstream interference effect of high-rise buildings under turbulent boundary layer flow vol.159, 2016, https://doi.org/10.1016/j.jweia.2016.10.002
  6. Mutual interference effects between two high-rise building models with different shapes on local peak pressure coefficients vol.104-106, 2012, https://doi.org/10.1016/j.jweia.2012.04.004
  7. Interference effects of an adjacent tall building with various sizes on local wind forces acting on a tall building 2018, https://doi.org/10.1177/1369433217750170
  8. Interference effects on aerodynamic wind forces between two buildings vol.147, 2015, https://doi.org/10.1016/j.jweia.2015.10.009
  9. Effects of aerodynamic modification mechanisms on interference from neighboring buildings vol.168, 2017, https://doi.org/10.1016/j.jweia.2017.06.018
  10. Mode shape correction for wind-induced dynamic responses of tall buildings using time-domain computation and wind tunnel tests vol.322, pp.4-5, 2009, https://doi.org/10.1016/j.jsv.2008.11.049
  11. Interference effects on tail characteristics of extreme pressure value distributions vol.170, 2017, https://doi.org/10.1016/j.jweia.2017.08.011
  12. Simultaneous Measurement of Wind Pressures and Flow Patterns for Buildings with Interference Effect vol.16, pp.2, 2013, https://doi.org/10.1260/1369-4332.16.2.287
  13. Analysis of interference effects on torsional moment between two high-rise buildings based on pressure and flow field measurement vol.164, 2017, https://doi.org/10.1016/j.jweia.2017.02.008
  14. Interference Effects on High-Rise Buildings – Overview of the Recent Research vol.1057, pp.1662-8985, 2014, https://doi.org/10.4028/www.scientific.net/AMR.1057.105
  15. On the member reliability of wind force-resisting steel frames designed by EN and ASCE rules of load combinations vol.12, pp.5, 2008, https://doi.org/10.12989/was.2009.12.5.425
  16. Characteristics of the aerodynamic interference between two high-rise buildings of different height and identical square cross-section vol.24, pp.5, 2008, https://doi.org/10.12989/was.2017.24.5.501
  17. Estimation of wind pressure coefficients on multi-building configurations using data-driven approach vol.32, pp.2, 2008, https://doi.org/10.12989/was.2021.32.2.127