Structural Engineering and Mechanics

  • 제6권5호
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  • Pages.555-569
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  • 1998
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Reliability of microwave towers against extreme winds

  • Deoliya, Rajesh (Structural Engineering Reseach Centre) ;
  • Datta, T.K. (Department of Civil Engineering, Indian Institute of Technology)
  • 발행 : 1998.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

The reliability of antenna tower designed for a n-year design wind speed is determined by considering the variability of the strength of the component members and of the mean wind speed. For obtaining the n-year design wind speed, maximum annual wind speed is assumed to follow Gumbel Type-1 distribution. Following this distribution of the wind speed, the mean and standard deviation of stresses in each component member are worked out. The variability of the strength of members is defined by means of the nominal strength and a coefficient of variation. The probability of failure of the critical members of tower is determined by the first order second moment method (FOSM) of reliability analysis. Using the above method, the reliability against allowable stress failure of the critical members as well as the system reliabilities for a 75 m tall antenna tower, designed for n-year design wind speed, are presented.

키워드

참고문헌

  1. Rojiani, K., and Wen, Y.K. (1981), "Reliability of steel buildings under winds", Journal of the Structural Division, ASCE, 107(1), 203-221.
  2. Wen, Y.K. (1983), "Wind direction and structural reliability", Journal of Structural Engineering, ASCE, 109(4), 1028-1041. https://doi.org/10.1061/(ASCE)0733-9445(1983)109:4(1028)
  3. Wen, Y.K. (1984), "Wind direction and structural reliability-II", Journal of Structural Division, ASCE, 110(6), 1253-1264. https://doi.org/10.1061/(ASCE)0733-9445(1984)110:6(1253)
  4. Lynn, B. and Stathopoulos, T. (1985), "Wind induced fatigue on low metal buildings", Journal of Structural Engineering, ASCE, 111(4), 826-839. https://doi.org/10.1061/(ASCE)0733-9445(1985)111:4(826)
  5. Wacker, J., and Plate, E.J. (1990), "Fatigue caused by wind pressure buffeting on surface elements of high rise buildings", Structural Dynamics, Kratzig, et. al. (eds.), Balkema, Rotterdam, 1133-1138
  6. Shinozuka, M. (1990), "Stochatic methods in wind engineering", Journal of Wind Engineering and Industrial Aerodyncamics, 36(2), 829-843. https://doi.org/10.1016/0167-6105(90)90080-V
  7. Holmes, J.D. (1985), "Wind loads and limit state design", The Civil Engineering Transactions, The Institution of Engineers, Australia, CE27(1), 21-25.
  8. Deoliya, R. (1995), A Reliability Analysis of Antenna Towers Subjected to Wind Action, Ph. D. Thesis submitted to I.I.T. Delhi, India.
  9. IS:875 - 1987 Indian Standard Code of Practice for Design Loads (Other than Earthquake) for the Buildings and Structures-Part 3, Wind Loads, Bureau of Indian Standards, New Delhi, India.

피인용 문헌

  1. Fatigue Reliability Analysis of Microwave Antenna Towers due to Wind vol.127, pp.10, 2001, https://doi.org/10.1061/(ASCE)0733-9445(2001)127:10(1221)
  2. Reliability analysis of a microwave tower for fluctuating mean wind with directional effect vol.67, pp.3, 2000, https://doi.org/10.1016/S0951-8320(99)00053-8
  3. Reliability analysis of latticed steel towers against wind induced displacement vol.4, pp.1, 2004, https://doi.org/10.12989/scs.2004.4.1.009