Earthquakes and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Study on the bearing capacity of cold-formed steel under different boundary conditions in transmission towers

  • Han, Junke (Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology) ;
  • Zhao, Xu (Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology) ;
  • Tang, Zhenyun (Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology) ;
  • Ma, Hua (Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology) ;
  • Li, Zhenbao (Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology)
  • Received : 2017.01.21
  • Accepted : 2017.05.26
  • Published : 2017.06.25
⟨ Previous Next ⟩

Abstract

Cold-formed steel is widely used in steel structures, especially in transmission towers, because of advantages such as low weight, high strength, excellent mechanical properties, etc. However, there is not a special design code for cold-formed steel use in transmission towers in China. For this study, a total of 105 compression members were tested statically to investigate the bearing capacity of cold-formed steel members under different boundary conditions in transmission towers. The test results were compared to the results predicted by the current design codes. For deeper insight, additional coupled members were simulated using finite element analysis. An improved design method was developed based on the experimental and analytical results.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. Bathon, L., Mueller, W.H. and Kempner, L. (1993), "Ultimate load capacity of single steel angles", J. Struct. Eng., 119(1), 279-300. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:1(279)
  2. CMC. (2002), Technical code of cold-formed thin-wall steel structures(GB 50018-2002), China Ministry of Construction. (in Chinese)
  3. Dhanalakshmi, M. and Shanmugam, N.E. (2001), "Design for openings in equal-angle cold-formed steel stub columns", Thin-Wall. Struct., 39(2), 167-187. https://doi.org/10.1016/S0263-8231(00)00047-1
  4. DL/T5154-2002 (2002), Technical Regulation of design for tower and pole structures of overhead transmission line, China Electric Power Press, Beijing. (in Chinese)
  5. Elgaaly, M., Dagher, H. and Davids, W. (1991), "Behavior of single-angle-compression members", J. Struct. Eng., 117(12), 3720-3741. https://doi.org/10.1061/(ASCE)0733-9445(1991)117:12(3720)
  6. Feng, P., Zhang, Y.H., Hu, L.L. and Gong, D. (2017), "Buckling of piecewise member composed of steel and high-strength materials in axial compression", Thin-Wall. Struct., 110, 62-74. https://doi.org/10.1016/j.tws.2016.10.008
  7. Huang, Y.N. and Young, B. (2013), "Experimental and numerical investigation of cold-formed lean duplex stainless steel flexural members", Thin-Wall. Struct., 73, 216-228. https://doi.org/10.1016/j.tws.2013.07.019
  8. Jackman, D.E. (1984), Guideline for Transmission Line Structural Loading, Committee on Electrical Transmission Structures, American Society of Civil Engineers, ASCE, New York.
  9. Jiang, J., Sun, H.F., An, N., Shi, Y., Zhang, Z.Y. and Jing, Y.M. (2014), "Study on applicable conditions of transmission line tower foundation natural grounding in less thunderstorm days region in northwest China", International Conference on Lightning Protection, Shanghai, China, October.
  10. Kennedy, J.B. and Murty, M.K.S. (1972), "Buckling of steel angle and tee struts", J. Struct. Div., 98(ST11), 2507-2522.
  11. Li, T.J., Li, G.Q., Chan, S.L. and Wang, Y.B. (2016), "Behavior of Q690 high-strength steel columns: Part 1: Experimental investigation", J. Constr. Steel Res., 123, 18-30. https://doi.org/10.1016/j.jcsr.2016.03.026
  12. Li, Z., He, M.J., Li, M.H. and Lam, F. (2014), "Damage assessment and performance-based seismic design of timbersteel hybrid shear wall systems", Earthq. Struct., 7(1), 101-117. https://doi.org/10.12989/eas.2014.7.1.101
  13. Narayanan, S. and Mahendran, M. (2003), "Ultimate capacity of innovative cold-formed steel columns", J. Constr. Steel Res., 59(4), 489-508. https://doi.org/10.1016/S0143-974X(02)00039-1
  14. Nashid, H., Clifton, C., Ferguson, G., Hodgson, M., Seal, C. and Choi, J.H. (2015), "Relationship between hardness and plastically deformed structural steel elements", Earthq. Struct., 8(3), 619-637. https://doi.org/10.12989/eas.2015.8.3.619
  15. Pournara, A.E., Karamanos, S.A., Mecozzi, E. and Lucci, A. (2017), "Structural resistance of high-strength steel CHS members", J. Constr. Steel Res., 128, 152-165. https://doi.org/10.1016/j.jcsr.2016.08.003
  16. Qin, Y. and Chen, Z.H. (2016), "Research on cold-formed steel connections: A state-of-the-art review", Steel Compos. Struct., 20(1), 21-41. https://doi.org/10.12989/scs.2016.20.1.021
  17. Rosario-Galanes, O. and Godoy, L.A. (2014), "Modeling of windinduced fatigue of cold-formed steel sheet panels", Struct. Eng. Mech., 49(2), 237-259. https://doi.org/10.12989/sem.2014.49.2.237
  18. Schafer, B.W. and Pekoz, T. (1998), "Computational modeling of cold-formed steel: characterizing geometric imperfections and residual stresses", J. Constr. Steel Res., 47(3), 193-201. https://doi.org/10.1016/S0143-974X(98)00007-8
  19. Shahi, R., Lam, N., Gad, E. and Wilson, J. (2013), "Protocol for testing of cold-formed steel wall in regions of low-moderate seismicity", Earthq. Struct., 4(6), 629-647. https://doi.org/10.12989/eas.2013.4.6.629
  20. Wang, F.Y., Xu, Y.L. and Zhan, S. (2016), "Multi-scale model updating of a transmission tower structure using Kriging metamethod", Struct. Control Hlth. Monit., 1-16.
  21. Yang, F.L., Han, J.K., Yang, J.B. and Li, Z. (2009), "Study on the application of weathering and cold-formed steel in transmission tower", Asia-Pacific Power and Energy Engineering Conference, Wuhan, China, December.
  22. Yang, F.L., Han, J.K., Yang, J.B. and Li, Z.B. (2011), "Study on the buckling behaviour of cold-formed angles in transmission towers", Int. J. Steel Struct., 11(4), 495-508. https://doi.org/10.1007/s13296-011-4008-5
  23. Yang, S., Li, H., Zhou, W.J. and Yu, J.H. (2014), "Lightning current waveform observed on transmission line and lightning tower in China", International Conference on Lightning Protection, Shanghai, China, October.
  24. Young, B. and Rasmussen, K.J.R. (1999), "Behaviour of coldformed singly symmetric columns", Thin-Wall. Struct., 33(2), 83-102. https://doi.org/10.1016/S0263-8231(98)00044-5
  25. Zhou, F. and Young, B. (2007), "Experimental and numerical investigations of cold-formed stainless steel tubular sections subjected to concentrated bearing load", J. Constr. Steel Res., 63(11), 1452-1466. https://doi.org/10.1016/j.jcsr.2006.12.007