Wind and Structures

  • 제33권4호
  • /
  • Pages.317-329
  • /
  • 2021
  • /
  • 1226-6116(pISSN)
  • /
  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Member capacity-based progressive collapse analysis of transmission towers under wind load

  • Li, Yongquan (College of Civil Engineering and Architecture, Zhejiang University) ;
  • Chen, Yong (College of Civil Engineering and Architecture, Zhejiang University) ;
  • Shen, Guohui (College of Civil Engineering and Architecture, Zhejiang University) ;
  • Lou, Wenjuan (College of Civil Engineering and Architecture, Zhejiang University) ;
  • Zhao, Weijian (College of Civil Engineering and Architecture, Zhejiang University) ;
  • Wang, Hao (School of Civil Engineering, Southeast University)
  • 투고 : 2021.01.31
  • 심사 : 2021.06.24
  • 발행 : 2021.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

The wind-induced collapse of transmission towers has raised many concerns. Progressive collapse analysis is recognized as a promising method for the assessment of the collapse-resistant capacity of the transmission tower. The finite element model of an actual transmission tower is firstly built for the analysis, in which the dynamic behavior of the member in failure is taken into account to be in accord with the actual tower collapse. The analysis considering the main design load cases is conducted in advance to determine the case under which the tower has the potential to collapse. The incremental dynamic analysis in association with the explicit time integration algorithm is employed to perform a progressive collapse analysis, where the wind loads are simulated by using the linear filtering method, and the developed failure criterion with axial force and bending moment involved is based on the stability bearing capacity of the members. It is found the tower collapse begins with the horizontal bracing member near the waist. Then, the adjacent members, including the leg members, fail sequentially, and the tower collapses eventually with a shear-type failure. The demand to capacity ratio (DCR) in terms of bearing capacity of the member is defined to quantify the structural behavior, the location of the member that has the potential to fail, and when the initial failure occurs are thereby identified. It is concluded that compared to the member capacity-based analysis, the ultimate strain-based analysis, which is most likely to be an inelastic dynamic analysis permitting a large deformation, may overestimate the bearing capacity of the structure in wind-induced collapse.

키워드

과제정보

The research described in this paper was financially supported by the National Natural Science Foundation of China (51878607, 51838012, 51978614).

참고문헌

  1. Aboshosha, H. and El Damatty, A. (2015), "Engineering method for estimating the reactions of transmission line conductors under downburst winds", Eng. Struct., 99, 272-284. http://doi.org/10.1016/j.engstruct.201 5.04.010.
  2. Chen, X. and Shen, S.Z. (1992), "Complete load-defection response and imperfection analysis of single-layer lattice dome", J. Build. Struct., 13(3), 11-18.
  3. Davenport, A.G. (1961), "The spectrum of horizontal gustiness near the ground in high winds", Quart. J. Royal Meteorol. Soci., 87(372), 194-211. https://doi.org/10.1002/qj.49708737208.
  4. Department of Defense (DoD) (2016), Unified Facilities Criteria (UFC), Design of Buildings to Resist Progressive Collapse, Department of Defense, UFC 4-023-03, U.S. Army Corps of Engineering , Washington D.C.
  5. DL/T 5551 (2018), Load Code for the Design of Overhead Transmission Line, National Energy Administration of the People's Republic of China, Beijing, China.
  6. Eslamlou, S.D. and Asgarian, B. (2017), "Determining critical areas of transmission towers due to sudden removal of members", Case Studies Eng. Fail. Anal., 9, 138-147. https://doi.org/10.1016/j.csefa.2015.09.005.
  7. GB 50017 (2017), Standard for Design of Steel Structures, Ministry of Housing and Urban-Rural Development of the People's Republic of China, Beijing, China.
  8. General Services Administration (GSA) (2013), Alternate Path Analysis and Design Guidelines for Progressive Collapse Resistance, Office of Chief Architect, Washington DC, U.S.A.
  9. Helmy, H., Salem, H. and Mourad, S. (2012), "Progressive collapse assessment of framed reinforced concrete structures according to UFC guidelines for alternative path method", Eng. Struct., 42, 127-141. http://doi.org/10.1016/j.engstruct.2012.03.058.
  10. Izadi, I.T. and Ranjbaran, A. (2012), "Investigation on a mitigation scheme to resist the progressive collapse of reinforced concrete buildings", Front. Struct. Civil Eng., 6(4), 421-430. https://doi.org/10.1007/s11709-012-0181-7.
  11. Jiang, W.Q., Wang, Z.Q., McClure, G., Wang, G.L. and Geng, J.D. (2011), "Accurate modeling of joint effects in lattice transmission towers", Eng. Struct., 33, 1817-1827. https://doi.org/10.1016/j.engstruct.2011.02.022.
  12. Li, J.X., Li, H.N. and Fu, X. (2018), "Dynamic behavior of transmission tower-line systems subjected to insulator breakage", Int. J. Struct. Stabil. Dyn., ,18(3), 1-24. https://doi.org/10.1142/S0219455418500360.
  13. Liang, S., Zou, L., Wang, D. and Cao, H. (2015), "Investigation on wind tunnel tests of a full aeroelastic model of electrical transmission towerline system", Eng. Struct., 85, 63-72. https://doi.org/10.1016/j.engstruct.2014.11.042.
  14. Marjanishvili, S.M. (2004), "Progressive analysis procedure for progressive collapse", J. Perform. Construct. Facilities, 18(2), 79-85. https://doi.org/10.1061/(ASCE)0887-3828(2004)18:2(79)
  15. Qian, C., Shen, G.H., Guo, Y. and Xing, Y.L. (2017), "Influence of semi-rigid connections on wind-induced responses of transmission towers", J. Zhejiang Univ. (Eng. Sci.), 51(6), 1082-1089. https://doi.org/10.3785/j.issn.1008-973X.2017.06.004
  16. Ren, P., Li, Y., Lu, X., Guan, H. and Zhou, Y. (2016), "Experimental investigation of progressive collapse resistance of one-way reinforced concrete beam-slab substructures under a middle-column-removal scenario", Eng. Struct., 118, 28-40. https://doi.org/10.1016/j.engstruct.2016.03.051.
  17. Shinozuka, M. and Jan, C.M. (1972), "Digital simulation of random processes and its applications", J. Sound Vib., 25(1), 111-128. https://doi.org/10.1016/0022-460X(72)90600-1.
  18. Tapia-Hernandez, E., Ibarra-Gonzalez, S. and De-Leon-Escobedo, D. (2017), "Collapse mechanisms of power towers under wind loading", Struct. Infrastruct. Eng., 13(6), 766-782. https://doi.org/10.1080/15732479.2016.1190765.
  19. Tian, L., Pan, H., Qiu, C., Ma, R. and Yu Q. (2019), "Wind-induced collapse analysis of long-span transmission tower-line system considering the member buckling effect", Advan. Struct. Eng., 22(1), 30-41. https://doi.org/10.1177/1369433218774961.
  20. Tian, L., Yu, Q., Ma, R. and Wang, C. (2014), "The collapse analysis of a transmission tower under wind excitation", Open Civil Eng. J., 8(1), 136-142. https://doi.org/10.2174/1874149501408010136
  21. Vamvatsikos, D. and Allin Cornell, C. (2002), "Incremental dynamic analysis", Earthq. Eng. Struct. Dyn., 31, 491-514. https://doi.org/10.1002/eqe.141.
  22. Wang, W.M., Li, H.N. and Tian, L. (2013), "Progressive collapse analysis of transmission tower-line system under earthquake", Advan. Steel Construct., 9(2), 161-172.
  23. Yu, J. and Tan, K.H. (2013), "Experimental and numerical investigation on progressive collapse resistance of reinforced concrete beam column sub-assemblages", Eng. Struct., 55, 90-106. http://doi.org/10.1016/j.engstruct.2011.08.040.
  24. Zhang, Y. (2006), "Status quo of wind hazard prevention for transmission lines and countermeasures". East China Electric Power, 34(3), 28-31. https://doi.org/10.3969/j.issn.1001-9529.2006.03.008
  25. Zhang, Z., Li, H., Li, G., Wang, W. amd Tian, L. (2013), "The numerical analysis of transmission tower-line system wind-induced collapsed performance", Mathem. Prob. Eng., 2013, 1-11. http://doi.org/10.1155/2013/413275.