Wind and Structures

  • 제37권5호
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  • Pages.347-359
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  • 2023
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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A mathematical model for the along-wind coefficient of tower crane based on the member load

  • Wei Chen (School of mechanical engineering, Shijiazhuang Tiedao University) ;
  • Xianrong Qin (School of mechanical engineering, Tongji University) ;
  • Zhigang Yang (School of mechanical engineering, Tongji University)
  • 투고 : 2022.08.21
  • 심사 : 2023.11.16
  • 발행 : 2023.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

The along-wind coefficient is the key parameter for wind load calculations in tower crane structure design. It is often calculated using overall parameter characteristics, which may lead to inaccurate results. In this study, six types of tower masts and four types of tower jibs with different overall structural characteristics and member characteristics are established. Through wind tunnel force tests and CFD numerical simulation, the along-wind coefficient of the overall structure and each member are obtained. Based on the characteristics of the slenderness ratio and spacing ratio of the members, a mathematical model for calculating the along-wind coefficient of the tower crane structure is proposed. The calculated results are in accordance with the wind tunnel test results. The maximum relative error is -6.25%, and the minimum relative error is 0.68%. To ensure accuracy, it is necessary to calculate the along-wind coefficient of the tower crane structure based on the load of each structure member rather than using overall parameter characteristics.

키워드

과제정보

This research was supported by the National Natural Science Foundation of China (51205292), the National Science and Technology Support Program of China (2014BAF08B05, 2015BAF06B05) and the Key Project of Science and Technology of Shanghai (15DZ1161203).

참고문헌

  1. AIJ-RLB-2004 (2004), Recommendations for Loads on Buildings. Architectural Institute of Japan, Maruzen, Japan.
  2. AS/NZS 1170.2: 2011 (2011), Structural Dsign Ations-Part 2: Wind Ations. SAI Global Limited, Sydney, Australia.
  3. ASCE 7-05: 2006 (2006), Minimum Design Loads for Buildings and Other Structures. American Society of Civil Engineers, Reston, USA.
  4. Bayar, D.C. (1986), "Drag coefficients of latticed towers", J. Struct. Eng., 112(2), 417-430. https://doi.org/10.1061/(ASCE)0733-9445(1986)112:2(417).
  5. Bian, R., Lou, W.J., Li, H., Zhao, X.S. and Zhang, L.G. (2019), "Aerodynamic characteristics of steel tubular transmission tower in different flow fields", J. ZheJiang Univ. Eng. Sci., 53(5), 910-916. https://doi.org/10.3785/j.issn.1008-973X.2019.05.011.
  6. BS EN 1993-3-1: 2006 (2006), Eurocode 3: Design of Steel Structures-part 3-1: Towers, Masts and Chimneys-Towers and Masts. BSI, London, UK.
  7. Chao, X.I.A., Xizhuang, S.H.A.N. and Zhigang, Y.A.N.G. (2014), "A comparative study of different turbulence models in computation of flow around simplified Train, [J]", J. Tongji Univ. Nat. Sci., 42(11), 1687-1693. https://doi.org/10.11908/j.issn.0253-374x.2014.11.010.
  8. Eden, J.F., Butler, A.J. and Patient J. (1983), "Wind tunnel tests on model crane structures", Eng. Struct., 5(4), 289-298. https://doi.org/10.1016/0141-0296(83)90008-1.
  9. GB/T 3811-2008 (2008), Design Rules of Cranes. Standardization Administration of the PRC, Beijing, China.
  10. Hadane, A., Redford, J.A., Gueguin, M., Hafid, F. and Ghidaglia, J.M. (2023), "CFD wind tunnel investigation for wind loading on angle members in lattice tower structures", J. Wind Eng. Ind. Aerod., 236, 105397. https://doi.org/10.16339/j.cnki.hdxbzkb.2021.11.00.
  11. Huixue, D., Junhai, Z., Hongjie, Z. and Huawei, N. (2016), "Study on shape coefficient and shielding effects of triangular latticed tower body", Chinese J. Comput. Mech., https://doi.org/10.7511/jslx 201603013.
  12. JEC-127-1979 (1979), Design Standards on Structures for Transmissions. Japanese Electro-technical Committee, Tokyo, Japan.
  13. Li, Y., Li, Z., Yan, B. and Yan, Z. (2017), "Wind forces on circular steel tubular lattice structures with inclined leg members", Eng. Struct., 153, 254-263. https://doi.org/10.1016/j.engstruct.2017.10.032.
  14. Lou, W.J., Liang H.C. and Bian, R. (2018), "Apply member loads to calculate wind load shape coefficient of angle-made-transmission tower", J. Zhejiang Univ. Eng. Sci., 52(09), 1631-1637. https://doi.org/10.3785/j.issn.1008-973X.2018.09.001.
  15. Martin, P., Elena, V.B., Loredo-Souza, A.M. and Camano, E.B. (2016), "Experimental study of the effects of dish antennas on the wind loading of telecommunication towers", J. Wind Eng. Ind. Aerod., 149, 40-47. https://doi.org/10.1016/j.jweia.2015.11.010.
  16. Nakayama, A., Okamoto, D. and Takeda, H. (2010), "Large-eddy simulation of flows past complex truss structures", J. Wind Eng. Ind. Aerod., 98(3), 133-144. https://doi.org/10.1016/j.jweia.2009.10.007.
  17. Prud, H.S., Legeron, F. and Langlois, S. (2018), "Calculation of wind forces on lattice structures made of round bars by a local approach", Eng. Struct., 156, 548-555. https://doi.org/10.1016/j.engstruct. 2017.11.065.
  18. Suhas, V.P. (1983), Numerical Prediction of Flow, Heat Transfer, Turbulence and Combustion, Elsevier, New York, USA.
  19. Van, H.N.P., Schewe, G. and Jacobs, M. (2017), "Experiments on the aerodynamic behaviour of square cylinders with rounded corners at Reynolds numbers up to 12 million", J. Fluid Struct., 74(C), 214-233. https://doi.org/10.1016/j.jfluidstructs.2017.08.002.
  20. Xie, H.P., He, M.J. and Ma, R.L. (2010), "Analyze of mean wind load of lattice tower based on CFD simulation", J. Cent. South Univ. Sci. Tech., 41, 1980-1986. https://doi.org/CNKI:SUN:ZNGD.0.2010-05-056. 10-05-056
  21. Yang, F.L. and Niu, H.W. (2021), "Experimental study on drag coefficients and shielding effects of steel tubular members in lattice transmission towers", Proc Csee, 41(10), 3632-3644. https://doi.org/10.13334 /j.0258-8013.pcsee.201398. https://doi.org/10.13334/j.0258-8013.pcsee.201398
  22. Yang, F.L., Zhang, H.J., Yang, J.B., Dang, H.X. and Niu, H.W. (2016), "Shielding effects on the leeward side of high voltage transmission tower bodies under wind load", J. Vib. Eng., 29(2), 276-283. https://doi.org/10.16385/j.cnki.issn.1004-4523.2016.02.012.
  23. Zafar, F. and Alam, M.M. (2019), "Flow structure around and heat transfer from cylinders modified from square to circular", Phys Fluids, 31(8), 083604. https://doi.org/10.1063/1.5109693.