Wind and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Performance of wind-excited 1000 kV substation gantry by aeroelastic model wind tunnel test

  • Li, Feng (School of Civil Engineering, Wuhan University) ;
  • Chen, Yin (Central Southern China Electric Power Design Institute Co., LTD of China Power Engineering Consulting Group) ;
  • Zou, Liang-Hao (School of Civil Engineering, Wuhan University) ;
  • Song, Jie (School of Civil Engineering, Wuhan University) ;
  • Liang, Shu-Guo (School of Civil Engineering, Wuhan University)
  • Received : 2019.07.26
  • Accepted : 2020.08.05
  • Published : 2021.10.25
⟨ Previous Next ⟩

Abstract

This study aims to investigate the performance of wind-excited 1000 kV substation gantry via the aero-elastic model wind tunnel test. An aero-elastic model that can simulate the first four frequencies was designed and manufactured by the method of combining semi-rigid segments by V-shape springs. Making use of the aero-elastic model wind tunnel test, the structural displacement and acceleration responses of the model were investigated for different wind speed and wind direction cases. Results show that the method of combining semi-rigid segments by V-shape springs can simulate the key parameters such as geometric shape, mass, frequency and damping ratio well. Wind direction plays an important role in the mean displacement responses, and the worst wind direction is 15° deviating from the corresponding axis. The root mean square of acceleration responses is remarkable in both the along-wind and cross-wind directions. In the direction perpendicular to the span, the wind-induced vibration of the middle tower mainly depends on the resonance component of the first mode. By contrast, the contributions of the first and higher modes are all important for the side towers' wind-induced responses. Gust response factors (GRFs) were estimated by the inertial wind loading method and the gust loading factor method, respectively. The range of the GRFs determined by the two methods is close to each other, which can provide guidance for assessing the performance of similar substation gantries subjected to wind.

Keywords

Acknowledgement

The research described in this paper was financially supported by the Natural Science Foundation of China (Grant No. 51608398 and No. 51478369).

References

  1. Ahmad, M.B., Pande, P.K. and Krishna, P. (1984), "Self-supporting towers under wind loads", J. Struct. Eng., 110(2), 370-384. http://dx.doi.org/10.1061/(ASCE)0733-9445(1984)110:2(370)
  2. Chen, X. and Kareem, A. (2004), "Equivalent static wind loads on buildings: New model", J. Struct. Eng., 130(10), 1425-1435. http://dx.doi.org/10.1061/(ASCE)0733- 9445(2004)130:10(1425).
  3. Chen, Y. and Zhu, D. (2019), "Research on shape-coefficient of 1000 kV substation steel pipe frame by wind tunnel tests", Spec. Struct., 36(2), 69-74. http://dx.doi.org/10.19786/j.tzjg.2019.02.013.
  4. Chunming, W., Bin, M. and Tingting, S. (2012), "Research on the wind-induced vibration coefficient of transmission tower-line system", Phys. Proc. 24, 149-154. http://dx.doi.org/10.1016/j.phpro.2012.02.023
  5. Davenport, A.G. (1967), "Gust loading factors", J. Struct. Div., 93(3), 11-34. http://dx.doi.org/10.1061/JSDEAG.0001692.
  6. Deng, H., Si, R., HU, X. and Chen, Q. (2010), "Wind tunnel test on aeroelastic model of UHV latticed transmission tower", J. Tongji. Univ: Nat. Sci. Ed., 38(5), 673-678. http://dx.doi.org/10.3969/j.issn.0253-374x.2010.05.008
  7. Deng, H.Z., Xu, H.J., Duan, C.Y., Jin, X.H. and Wang, Z.H. (2016), "Experimental and numerical study on the responses of a transmission tower to skew incident winds", J. Wind Eng. Ind. Aerod., 157, 171-188. http://dx.doi.org/10.1016/j.jweia.2016.05.010
  8. Elawady, A., Aboshosha, H., El Damatty, A., Bitsuamlak, G., Hangan, H. and Elatar, A. (2017), "Aero-elastic testing of multi-spanned transmission line subjected to downbursts", J. Wind Eng. Ind. Aerod., 169, 194-216. http://dx.doi.org/10.1016/j.jweia.2017.07.010
  9. GB50009 (2012), Load Code for the Design of Building Structures, China Architecture & Building Press, Beijing, China.
  10. Huang, M.F., WenjuanLou, LunYang, BingnanSun, GuohuiShen and Tse, K.T. (2012), "Experimental and computational simulation for wind effects on the Zhoushan transmission towers", Struct. Infrastruct. Eng., 8(8), 781-799. http://dx.doi.org/10.1080/15732479.2010.497540
  11. Kareem, A. and Zhou, Y. (2003), "Gust loading factor-past, present and future", J. Wind Eng. Ind. Aerod., 91(12), 1301-1328. http://dx.doi.org/10.1016/j.jweia.2003.09.003
  12. Ke, S.T., Ge, Y.J., Zhao, L. and Tamura, Y. (2012), "A new methodology for analysis of equivalent static wind loads on super-large cooling towers", J. Wind Eng. Ind. Aerod., 111 30-39. http://dx.doi.org/10.1016/j.jweia.2012.08.001.
  13. Kempner Jr, L. (2008), Substation Structure Design Guide, ASCE, Reston, Virginia. http://dx.doi.org/10.1061/9780784409350.
  14. Li, Z., Ren, K., Xiao, Z., Wang, Z. and Yu, K. (2011), "Aeroelastic model design and wind tunnel tests of UHV transmission line system", Acta Aerodyn. Sin., 29(1), 102-106+113. http://dx.doi.org/10.1631/jzus.A1000209.
  15. Liang, S., Zou, L., Wang, D. and Cao, H. (2015), "Investigation on wind tunnel tests of a full aeroelastic model of electrical transmission tower-line system", Eng. Struct., 85(85), 63-72. http://dx.doi.org/10.1016/j.engstruct.2014.11.042.
  16. Liang, Z. and Li, Z. (2009), "An aeroelastic model design of ultra-high voltage power transmission line systems", J. Chongqing. Univ., 32(2), 131-136. http://dx.doi.org/10.1016/S1874-8651(10)60084-1.
  17. Lin, W.E., Savory, E., Mcintyre, R.P., Vandelaar, C.S. and King, J.P.C. (2012), "The response of an overhead electrical power transmission line to two types of wind forcing", J. Wind Eng.. Ind. Aerod., 100(1), 58-69. http://dx.doi.org/10.1016/j.jweia.2011.10.005.
  18. Lou, W., Sun, B. and Tang, J.C. (1996), "Wind tunnel test and numerical computation on wind-induced vibration for tall lattice tower", J. Vib. Eng., 9(3), 108-112. http://dx.doi.org/10.16385/j.cnki.issn.1004-4523.1996.03.017
  19. Niu, H., kong, K., Chen, Y. and Chen, Z. (2015), "500 kV whole combined substation framework shape factor of wind tunnel test and dynamic response factor analysis", J. Hunan. Univ: Nat. Sci. Ed., 42(11), 80-87. http://dx.doi.org/10.16339/j.cnki.hdxbzkb.2015.11.031
  20. Pan, F., Tong, J., Sheng, X., Ye, Y., Sun, B. and Chen, Y. (2009), "Wind-induced dynamic response of large thin-walled steel tube frame for 1000kV substation", Eng. Mech., 26(10), 203-210. http://dx.doi.org/10.1109/CLEOE-EQEC.2009.5194697.
  21. Simiu, E., Scanlan, R.H., Sachs, P., and Griffin, O.M. (1980). "Wind effects on structures: An introduction to wind engineering and wind forces in engineering", J. Fluids Eng., 102(4), 525-526. https://doi.org/10.1115/1.3240751.
  22. Sykes, D.M. (1981), "Lattice frames in turbulent airflow", J. Wind Eng. Ind. Aerod, 7(2), 203-214. http://dx.doi.org/10.1016/0167-6105(81)90038-6
  23. Vellozzi, J. and Cohen, E. (1968), "Gust response factors", J. Struct. Div., ASCE, 94(6), 1295-1313. http://dx.doi.org/10.1061/JSDEAG.0001965
  24. Wang, S., Sun, B., Lou, W. and Ye, Y. (2005), "Wind tunnel test and theoretical analysis on aeroelastic model of single-rod transmission tower", J. Zhejiang. Univ: Eng. Sci. Ed., 39(1), 88-92. http://dx.doi.org/10.3785/j.issn.1008-973X.2005.01.016.
  25. Xie, Q., Cai, Y. and Xue, S. (2017), "Wind-induced vibration of UHV transmission tower line system: Wind tunnel test on aero-elastic model", J. Wind Eng. Ind. Aerod., 171, 219-229. http://dx.doi.org/10.1016/j.jweia.2017.10.011.
  26. Zhang, X.T. (1983), "The theoretical study and application of gust-loading factors for tower-structures", J. Tongji. Univ: Nat. Sci. Ed., 2, 44-55. http://dx.doi.org/TJDZ.0.1983-02-003.
  27. Zhou, Y., Gu, M. and Xiang, H. (1999), "Alongwind static equivalent wind loads and responses of tall buildings. Part I: Unfavorable distributions of static equivalent wind loads", J. Wind Eng. Ind. Aerodyn., 79(1), 135-150. http://dx.doi.org/10.1016/S0167-6105(97)00297-3.