Wind and Structures

Techno-Press (테크노프레스)
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POD Analysis for modeling wind pressures and wind effects of a cylindrical shell roof

  • Li, Fanghui (College of Civil Engineering, Heilongjiang University) ;
  • Chen, Xinzhong (National Wind institute, Department of Civil, Environmental, and Construction Engineering, Texas Tech University)
  • Received : 2019.08.11
  • Accepted : 2020.04.29
  • Published : 2020.06.25
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Abstract

This paper presents a study on the effectiveness of the proper orthogonal decomposition (POD) technique for reconstruction of wind pressure field as applied to a cylindrical shell roof based on simultaneously measured wind pressure data. The influence of wind loading mode truncation on the statistics of dynamic pressures and wind load effects are investigated. The results showed that truncation of higher wind loading modes can have more noticeable influence on the maximum and minimum pressures that the standard derivation (STD) values. The truncation primarily affects the high-frequency content of the pressures. Estimation of background response using wind loading modes is more effective than the use of traditional structural modal analysis.

Keywords

Acknowledgement

The support this work was provided in part by the NNSF Grant No.50908077. This support is gratefully acknowledged.

References

  1. Bienkiewicz B., Tamura Y., Ham H., Ueda H. and Hibi K. (1995), "Proper orthogonal decomposition and reconstruction of multi-channel roof pressure", J. Wind. Eng. Ind. Aerod., 54, 369-381. https://doi.org/10.1016/0167-6105(94)00066-M
  2. Blackmore P. and Tsokri E. (2006), "Wind load on curved roofs", J. Wind. Eng. Ind. Aerodyn., 94(11), 833-844. https://doi.org/10.1016/j.jweia.2006.06.006
  3. Chen X. and Kareem A. (2005), "Proper orthogonal decomposition-based modeling, analysis, and simulation of dynamic wind load effects on structures", J. Eng. Mech., 131(4), 325-339. https://doi.org/10.1061/(ASCE)0733-9399(2005)131:4(325).
  4. Chen X. and Zhou N. (2007), "Equivalent static wind loads on low-rise buildings based on full-scale pressure measurements", Eng. Struct., 29(10), 2563-2575. https://doi.org/10.1016/j.engstruct.2007.01.007.
  5. Chen B., Yan X. and Yang Q. (2014), "Wind-induced response and universal equivalent static wind loads of single layer reticular dome shells", Int. J. Struct. Stabil. Dyn., 14(4), 1450008. https://doi.org/10.1142/S0219455414500084.
  6. Chen B., Yang Q. and Wu Y. (2012), "Wind-induced response and equivalent static wind loads of long span roofs", Adv. Struct. Eng., 15(7), 1099-1114. https://doi.org/10.1142/S0219455414500084.
  7. Ding Z. and Tamura Y. (2013), "Contributions on wind-induced overall and local behaviors for internal forces in cladding support components of large-span roof structure", J. Wind. Eng. Ind. Aerod., 115, 162-172. https://doi.org/10.1016/j.jweia.2013.01.013.
  8. Davenport A.G. (1995), "How can we simplify and generalize wind loads", J. Wind. Eng. Ind. Aerod., 54, 657-669. https://doi.org/10.1016/0167-6105(94)00079-S.
  9. Franchini S., Pindado S., Meseguer J. and Sanz-Andres A. (2005), "A parametric, experimental analysis of conical vortices on curved roofs of low-rise buildings", J. Wind. Eng. Ind. Aerod., 93(8), 639-650. https://doi.org/10.1016/j.jweia.2005.07.001.
  10. Fiore A. and Monaco, P. (2009), "POD-based representation of the along wind equivalent static force for long-span bridges", Wind Struct., 12(3), 239-257. https://doi.org/10.12989/was.2009.12.3.239
  11. Holmes, J.D., Sankaran, R., Kwok, K.C.S and Syme, M.J. (1997), "Eigenvector modes of fluctuating pressures on low-rise building modes", J. Wind. Eng. Ind. Aerod., 69, 697-707. https://doi.org/10.1016/S0167-6105(97)00198-0
  12. Holmes, J.D. (2002), "Effective static load distributions in wind engineering", J. Wind. Eng. Ind. Aerod., 90(2), 91-109. https://doi.org/10.1016/S0167-6105(01)00164-7.
  13. Katsumura, A., Tamura Y. and Nakamura, O. (2007), "Universal wind load distribution simultaneously reproducing largest load effects in all subject members on large-span cantilevered roof", J. Wind. Eng. Ind. Aerodyn., 95(9-11), 1145-1165. https://doi.org/10.1016/j.jweia.2007.01.020
  14. Li, Y., Tamura, Y., Yoshida, A., Katsumura, A. and Cho, K. (2006), "Wind loading and its effects on single-layer reticulated cylindrical shells", J. Wind. Eng. Ind. Aerod., 94(12), 949-973. https://doi.org/10.1016/j.jweia.2006.04.004.
  15. Luo, N., Liao, H. and Li, M. (2017), "An efficient method for universal equivalent static wind loads on long-span roof structures", Wind and Struct., 25(5), 493-506. https://doi.org/10.12989/was.2017.25.5.493.
  16. Natalini, M., Morel, C. and Natalini, B. (2013), "Mean load on vaulted canopy roofs", J. Wind. Eng. Ind. Aerod., 119, 102-113. https://doi.org/10.1016/j.jweia.2013.05.001.
  17. Qiu, Y., Sun, Y., Wu, Y. and Tamura, Y. (2014), "Modeling the mean wind loads on cylindrical roofs with consideration of the Reynolds number effect in uniform flow with low turbulence", J. Wind. Eng. Ind. Aerod., 129, 11-21. https://doi.org/10.1016/j.jweia.2014.02.011.
  18. Sun, Y., Wu, Y., Qiu, Y. and Tamura, Y. (2014), "Effects of free-stream turbulence and Reynolds number on the aerodynamic characteristics of a semi cylindrical roof", J. Struct. Eng., 141(9), 04014230. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001209.

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