Wind and Structures

  • 제31권5호
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  • Pages.431-443
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  • 2020
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Experimental study of wind-induced pressures on tall buildings of different shapes

  • Nagar, Suresh K (Delhi Technological University) ;
  • Raj, Ritu (Faculty of Civil Engineering, Delhi Technological University) ;
  • Dev, Nirendra (Faculty of Civil Engineering, Delhi Technological University)
  • 투고 : 2019.10.04
  • 심사 : 2020.11.20
  • 발행 : 2020.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

The modern tall buildings are often constructed as an unconventional plan and as twin buildings. Wind load on the tall building is significantly influenced by the presence of another building in the near vicinity. So, it is imperative to study wind forces on an unconventional plan shaped tall building. Mean wind pressure coefficients of a square and 'H' plan shape tall buildings are investigated using wind tunnel experiments. The experiments were carried out for various wind directions from 00 to 900 at an interval of 300 and various locations of the identical interfering building. The experimental results are presented at the windward face from the viewpoint of effects on cladding design. To quantify the interference effects, interference factors (I.F) are calculated. Mean pressure coefficients of both models are compared for isolated and interference conditions. The results show that pressure reduces with an increase in wind angle till 600 wind direction. The interfering building at full blockage interference condition generates more suction than the other two conditions. The interference factor for both models is less than unity. H-plan building model is subjected to a higher pressure than the square model.

키워드

과제정보

The authors would like to express their gratitude to the Department of Civil Engineering, Indian Institute of Technology, Roorkee, for providing the experimental setup.

참고문헌

  1. Bhattacharyya, B., Dalui, S.K. and Ahuja, A.K. (2014), "Wind induced pressure on 'E' plan shaped buildings", Jordan J. Civil Eng., 8(2), 120-134.
  2. Bhattacharyya, B. and Dalui, S.K. (2018), "Investigation of mean wind pressures on 'E' plan shaped tall building", Wind Struct., 26(2), 99-114. https://doi.org/10.12989/was.2018.26.2.099.
  3. Chakraborty, S., Dalui, S.K. and Ahuja, A.K. (2014), "Wind load on irregular plan shaped tall building- a case study", Wind Struct., 19(1) 59-73. http://dx.doi.org/10.12989/was.2014.19.1.059.
  4. Cheng, C.K.C., Lam, K.M., Leung, Y.T.A., Yang, K., Danny, H. L. and Sherman, C.C. (2011), "Wind-induced natural ventilation of re-entrant bays in a high-rise building", J. Wind Eng. Ind. Aerod., 99(2-3), 79-90. https://doi.org/10.1016/j.jweia.2010.11.002.
  5. Cheng, L. Lam, K.M. and Wong, S.Y. (2015), "POD analysis of crosswind forces on a tall building with square and H-shaped cross sections", Wind Struct., 21(1), 63-84. http://dx.doi.org/10.12989/was.2015.21.1.063.
  6. Deng, T., Yu, X. and Xie, Z. (2015), "Aerodynamic measurements of across-wind loads and responses of tapered super high-rise buildings", Wind Struct., 21(3), 331-352. https://doi.org/10.12989/was.2015.21.3.331.
  7. Dongmei, H., Xue, Z., Shiqing, H, Xuhui, H. and Hua, H. (2017), "Characteristics of the aerodynamic interference between two high-rise buildings of different height and identical square cross section", Wind Struct., 24(5), 501-528. https://doi.org/10.12989/was.2017.24.5.501.
  8. Gu, M. and Xie, Z.N. (2011), "Interference effects of two and three super-tall buildings under wind action", Acta. Mechanica Sinica, 27(5), 687. https://doi.org/10.1007/s10409-011-0498-9.
  9. Hui, Y., Tamura, Y. and Yoshida, A. (2012), "Mutual interference effects between two high-rise building models with different shapes on local peak pressure coefficients", J. Wind Eng. Ind. Aerod., 104-106, 98-108. https://doi.org/10.1016/j.jweia.2012.04.004.
  10. Hui, Y., Yoshida, A. and Tamura, Y. (2013a), "Interference effects between two rectangular-section high-rise buildings on local peak pressure coefficients", Journal Fluids Struct., 37, 120-133. https://doi.org/10.1016/j.jfluidstructs.2012.11.007.
  11. Hui, Y., Tamura, Y., Yoshida, A. and Kikuchi, H. (2013b), "Pressure and flow field investigation of interference effects on external pressures between high-rise buildings", J. Wind Eng. Ind. Aerod., 115, 150-161. https://doi.org/10.1016/j.jweia.2013.01.012.
  12. Hui, Y., Tamura, Y. and Yang, Q. (2017), "Analysis of interference effects on torsional moment between two high-rise buildings based on pressure and flow field measurement", J. Wind Eng. Ind. Aerod., 164, 54-68. https://doi.org/10.1016/j.jweia.2017.02.008
  13. IS 875 (Part 3) (2015), "Indian standard code of practice for design wind load on building and structures", New Delhi, India.
  14. Jana, D., Bhaduri, T. and Dalui, S. K. (2015), "Numerical study of optimization of interference effect on pentagonal plan shaped tall building", Asian J. Civil Eng., 16(8), 1123-1153.
  15. Kar, R. and Dalui, S.K. (2016), "Wind interference effect on an octagonal plan shaped tall building due to square plan shaped tall buildings", Int J Adv. Struct. Eng., 8,73-86. https://doi.org/10.1007/s40091-016-0115-z
  16. Kim, W., Tamura, Y. and Yoshida, A. (2011a), "Interference effects on local peak pressures between two buildings", J. Wind Eng. Ind. Aerod., 99, 584-600. https://doi.org/10.1016/j.jweia.2011.02.007
  17. Kim, W., Tamura, Y. and Yoshida, A. (2011b), "Wind-induced coupled motion of tall buildings with varying square plan with height", J. Wind Eng. Ind. Aerod., 99, 638-650. https://doi.org/10.1016/j.jweia.2011.03.004.
  18. Kim, Y. and Kanda, J. (2010), "Characteristics of aerodynamic forces and pressures on square plan buildings with height variations", J. Wind Eng. Ind. Aerod., 98, 449-465. https://doi.org/10.1016/j.jweia.2010.02.004.
  19. Kim, Y.C and Kanda, J. (2013), "Wind pressures on tapered and set-back tall buildings", J. Fluids Struct., 39, 306-321. https://doi.org/10.1016/j.jfluidstructs.2013.02.008.
  20. Kim, W., Tamura, Y. and Yoshida, A. (2015), "Interference effects on aerodynamic wind forces between two buildings", J. Wind Eng. Ind. Aerod., 147, 186-201. https://doi.org/10.1016/j.jweia.2015.10.009.
  21. Kim, B., Tse, K.T. and Tamura, Y. (2018), "POD analysis for aerodynamic characteristics of tall linked buildings", J. Wind Eng. Ind. Aerod., 181, 126-140. https://doi.org/10.1016/j.jweia.2018.09.001.
  22. Kumar, D. and Dalui, S.K. (2017), "Effect of internal angles between limbs of cross plan shaped tall building under wind load", Wind Struct., 24(2), 95-118. https://doi.org/10.12989/was.2017.24.2.095
  23. Lam, K.M., Leung, M.Y.H. and Zhao, J.G. (2008), "Interference effects on wind loading of a row of closely spaced tall buildings", J. Wind Eng. Ind. Aerod., 96(5), 562-583. https://doi.org/10.1016/j.jweia.2008.01.010
  24. Li, Y. and Li, Q.S. (2016), "Across wind dynamic load on L-shaped tall building", Wind Struct., 23(5), 385-403. https://doi.org/10.12989/was.2016.23.5.385
  25. Li, Y., Tian, X., Tee, K.F., Li, Q.S. and Li, Y.G. (2018), "Aerodynamic treatments for reduction of wind loads on high-rise buildings", J. Wind Eng. Ind. Aerod., 172, 107-115. https://doi.org/10.1016/j.jweia.2017.11.006
  26. Mara, T.G., Terry, B.K., Ho, T.C.E. and Isyumov, N. (2014), "Aerodynamic and peak response interference factors for an upstream square building of identical height", J. Wind Eng. Ind. Aerod., 133, 200-210. https://doi.org/10.1016/j.jweia.2014.06.010.
  27. Gu, M. and Quan, Y. (2011), "Across-wind loads and effects of super-tall buildings and structures", Science China, 54(10), 2531-2541. https://doi.org/10.1007/s11431-011-4543-5
  28. Mooneghi, M.A. and Kargarmoakhar, R. (2016), Aerodynamic mitigation and shape optimization of buildings: Review", J. Build. Eng., 6, 225-235. https://doi.org/10.1007/s11431-011-4543-5.
  29. Mukherjee, S., Chakraborty, S., Dalui, S.K. and Ahuja, A.K. (2014), "Wind induced pressure on 'Y' plan shape building", Wind Struct., 19(5), 523-540. https://doi.org/10.12989/was.2014.19.5.523.
  30. Mukherjee, S. and Bairagi, A.K. (2018), "Interference effect on principal building due to setback tall building under wind excitation", Proceedings of the 11th Structural Engineering Convention, Kolkata, India, December.
  31. Paul, R. and Dalui, S.K. (2016), "Wind effects on 'Z' plan-shaped tall building: a case study", Int. J. Adv. Struct. Eng., 8, 319-335. https://doi.org/10.1007/s40091-016-0134-9.
  32. Song, J., Tse, K.T., Tamura, Y. and Kareem, A. (2016), "Aerodynamics of closely spaced buildings: with application to linked buildings", J. Wind Eng. Ind. Aerod., 149, 1-16. https://doi.org/10.1016/j.jweia.2015.11.007
  33. Tamura, Y., Kim, Y.C., Tanaka, H., Bandi, E.K. Yoshida, A. and Ohtake, K. (2013), "Aerodyanmic and response characteristics of super tall buildings with various configurations", proceedings of the 8th Asia-Pacific Conference On Wind Engineering, Chennai, India, December.
  34. Tanaka, H., Tamura, Y., Ohtake, K., Nakai, M. and Kim, Y.C. (2012), "Experimental investigation of aerodynamic forces and wind pressures acting on tall buildings with various unconventional configurations", J. Wind Eng. Ind. Aerod., 107-108, 179-191. https://doi.org/10.1016/j.jweia.2012.04.014
  35. Tanaka, H., Tamura, Y., Ohtake, K. and Nakai, M., Kim, Y.C., and Bandi, E.K. (2013), "Aerodynamic and Flow Characteristics of Tall Buildings with Various Unconventional Configurations", Int. J. High-Rise Buildings, 2,(3), 213-228. https://doi.org/10.21022/IJHRB.2013.2.3.213
  36. Wong, S.Y and Lam, K.M. (2013), "Effect of caressed cavities on wind-induced loading and dynamic response of a tall building", J. Wind Eng. Ind. Aerod., 114, 72-82. https://doi.org/10.1016/j.jweia.2012.12.013.
  37. Xie, Z.N. and Gu, M. (2004), "Mean interference effects among tall buildings", Eng. Struct., 26, 1173-1183. https://doi.org/10.1016/j.engstruct.2004.03.007.
  38. Xie, Z.N. and Gu, M. (2007), "Simplified formulas for evaluation of wind-induced interference effects among three tall buildings", J. Wind Eng. Ind. Aerod., 95, 31-52. https://doi.org/10.1016/j.jweia.2006.05.003
  39. Xie, J. (2014), "Aerodynamic optimization of super-tall buildings and its effectiveness assessment", J. Wind. Eng. Ind. Aerod., 130, 88-98. https://doi.org/10.1016/j.jweia.2014.04.004
  40. Xu, X., Yang, Q., Yoshida, A. and Tamura, Y. (2017), "Characteristics of pedestrian-level wind around super-tall buildings with various configurations", J. Wind Eng. Ind. Aerod., 166, 61-73. https://doi.org/10.1016/j.jweia.2017.03.013.
  41. Yan, B. and Li, Q.S. (2016), "Wind tunnel study of interference effects between twin super-tall buildings with aerodynamic modifications", J. Wind Eng. Ind. Aerod., 156, 129-145. https://doi.org/10.1016/j.jweia.2016.08.001.
  42. You, K.P., Kim, Y.M., and Ko, N.H. (2008), "The evaluation of wind-induced vibration responses to a tapered tall building", Struct. Design Tall Spec. Build., 17, 655-667. https://doi.org/10.1002/tal.371.
  43. Yu, X.F., Xie, Z.N., Zhu, J.B. and Gu, M. (2015), "Interference effects on wind pressure distribution between two high-rise buildings", J. Wind Eng. Ind. Aerod., 142, 188-197. https://doi.org/10.1016/j.jweia.2015.04.008.
  44. Yu, X. F., Xie, Z.N., Wang, X. and Cai, B. (2016), "Interference effects between two high-rise buildings on wind-induced torsion", J. Wind Eng. Ind. Aerod., 159, 123-133. https://doi.org/10.1016/j.jweia.2016.10.011.
  45. Yu, X., Xie, Z. and Gu, M. (2018), "Interference effects between two tall buildings with different section sizes on wind-induced acceleration", J. Wind Eng. Ind. Aerod., 182, 16-26. https://doi.org/10.1016/j.jweia.2018.09.012.
  46. Yuan, W.B., Yu, N.T. and Wang, Z. (2018), "The effects of grooves on wind characteristics of tall cylinder buildings", Wind Struct., 26(2), 89-98. https://doi.org/10.12989/WAS.2018.26.2.089
  47. Zhao, J.G. and Lam, K.M. (2008), "Interference effects in a group of tall buildings closely arranged in an L-or T-shaped pattern", Wind Strict., 11(1), 1-18. http://dx.doi.org/10.12989/was.2008.11.1.001.
  48. Zhang, L., Cheng, W. and Xie, Z. (2018), "Wind effect of a twin-tower super high-rise building with weak connection", Struct. Design Tall Special Build., 27(15), 1-16. https://doi.org/10.1002/tal.1503.
  49. Zheng, C., Xie, Y., Khan, M., Wu, Y. and Liu, J. (2018), "Windi-nduced responses of tall buildings under combined aerodynamic control", Eng. Struct., 175, 86-100. https://doi.org/10.1016/j.engstruct.2018.08.031.
  50. Zu, G.B. and Lam, K.M. (2018), "Across-wind excitation mechanism for interference of twin tall buildings in tandem arrangement", Wind Strcut., 26(6), 397-413. https://doi.org/10.12989/was.2018.26.6.397.