Steel and Composite Structures

  • 제13권1호
  • /
  • Pages.47-70
  • /
  • 2012
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Design strategy of hybrid stay cable system using CFRP and steel materials

  • Xiong, Wen (Department of Bridge Engineering, School of Transportation, Southeast University) ;
  • Cai, C.S. (Department of Civil and Environmental Engineering, Louisiana State University) ;
  • Xiao, Rucheng (Department of Bridge Engineering, Tongji University) ;
  • Zhang, Yin (Department of Civil Engineering, Tsinghua University)
  • 투고 : 2012.04.07
  • 심사 : 2012.04.16
  • 발행 : 2012.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

To enhance cable stiffness, this paper proposed a combined application of carbon fiber reinforced polymers (CFRP) and steel materials, resulting in a novel type of hybrid stay cable system especially for the cable-stayed bridges with main span lengths of 1400~2800 m. In this combination, CFRP materials can conserve all their advantages such as light weight and high strength; while steel materials help increase the equivalent stiffness to compensate for the low elastic modulus of CFRP materials. An increase of the equivalent stiffness of the hybrid stay cable system could be further obtained with a reasonable increase of its safety factor. Following this concept, a series of parametric studies for the hybrid stay cable system with the consideration of stiffness and cost were carried out. Three design strategies/criteria, namely, best equivalent stiffness with a given safety factor, highest ratio of equivalent stiffness to material cost with a given safety factor, and best equivalent stiffness under a given cost were proposed from the stiffness and cost viewpoints. Finally, a comprehensive design procedure following the proposed design strategies was suggested. It was shown that the proposed hybrid stay cable system could be a good alternative to the pure CFRP or traditional steel stay cables in the future applications of super long span bridges.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

  1. American Concrete Institute (ACI) (2004). "Prestressing concrete structures with FRP tendons (ACI 440.4R-04)," Detroit.
  2. AASHTO LRFD Bridge Design Specifications (2004). Association of State Highway and Transportation Officials, Washington, DC, U.S.A
  3. Ahmadi-Kashani, K., and Bell, A. J. (1988). "The analysis of cables subject to uniformly distributed loads," Eng. Struct., 10(3), 174-184. https://doi.org/10.1016/0141-0296(88)90004-1
  4. Ernst, H. J. (1965). "Der e-modul von seilen unter beruecksichtigung des durchhanges," Der Bauingenieur, 40(2), 52-55.
  5. Einde, L. V. D., Zhao, L., and Seible, F. (2003) "Use of FRP Composites in Civil Structural Applications," Constr. Build. Mater., 17(6-7), 389-403. https://doi.org/10.1016/S0950-0618(03)00040-0
  6. Freire, A. M. S., Negrao, J. H. O., and Lopes, A. V. (2006). "Geometrical nonlinearities on the static analysis of highly flexible steel cable-stayed bridges," Comput. Struct., 84(31-32), 2128-2140. https://doi.org/10.1016/j.compstruc.2006.08.047
  7. Gimsing, N. J. (1994). "Suspended Bridges with Very Long Spans," International Conference on Cable-Stayed and Suspension Bridges, Deauville, France, 489-504.
  8. Gimsing, N. J. (1997). "Cable-supported bridges (2nd edition)," John Wiley & Sons, New York, U.S.A.
  9. Irvine, H. M. (1981). "Cable structures," The MIT Press, Cambridge, MA, U.S.A.
  10. Miao, J. W. (2006). "Study for design theories of super-long span cable-stayed bridges," Ph.D thesis, Tongji University, Shanghai, China.
  11. Mei, K. H. (2005). "Study on Cable-stayed Bridges with CFRP Cables," Ph.D thesis, Dongnan University, Nanjin, Jiangsu. China.
  12. Maeda, K. I., Morizono, Y., Nakamura, H., Eguchi, T., and Fujino, Y. (2001). "Applicability of CFRP cables to ultra long-span suspension bridges," IABSE Report 84, Conf. Cable-Supported Bridges (in CD-ROM), Seoul, Korea.
  13. Meier, U. (1987). "Proposal for a carbon fiber reinforced composite bridge across the strait of Gibraltar at its narrowest site," Proc. Inst. Mech. Eng., 201(B2), 73-78. https://doi.org/10.1243/PIME_PROC_1987_201_048_02
  14. Nagai, M., Fujino, Y., Yamaguchi, H., and Iwasaki, E. (2004). "Feasibility of a 1,400 m span steel cable-stayed bridge," Journal of Bridge Engineering, 9(5), 444-452. https://doi.org/10.1061/(ASCE)1084-0702(2004)9:5(444)
  15. Noisternig, J. F. (2000). "Carbon fibre composites as stay cables for bridges," Appl. Compos. Mater., 7(2-3), 139-150. https://doi.org/10.1023/A:1008946132034
  16. O'Brien, T. W. and Francis, A. J. (1964). "Cable movements under two-dimensional loading," ASCE, J. Struct. Engng., 90(ST3), 89-123.
  17. Peyrot, A. H. and Goulois, A. M. (1978). "Analysis of flexible transmission lines," ASCE J. Struct. Div., 104(5), 763-779.
  18. Saadatmanesh, H., and Ehsani, M. R. (1998). "Fiber composites in infrastructure," In 2nd international conference ICCI, 05-07 January 1998, Tucson, Arizona, U.S.A.
  19. Schurter, U. and Meier, B. (1996). "Stork Bridge Winthertur," Schweizer Ingenieur und Architekt 44, Oktober, 976-979.
  20. Xiong, Wen, C.S. Cai, Xiao, R.C. and, Deng, L. (2012). "Concept and Analysis of Stay Cables with a CFRP and Steel Composite Section," KSCE, J. of Civil Eng., 16(1), 107-117, DOI: 10.1007/s12205-012-1152-1.
  21. Xiong, W., Cai, C. S., Yin Zhangand Xiao, R.C. (2011) "Study of super long span cable-stayed bridges with CFRP components," Eng. Struct., 33(2), 330-343. https://doi.org/10.1016/j.engstruct.2010.10.013
  22. Zhang, Y. and Cai, C. S. (2007) "Load distribution and dynamic response of multi-girder bridges with FRP decks," Eng. Struct., 29(8), 1676-1689. https://doi.org/10.1016/j.engstruct.2006.09.011

피인용 문헌

  1. Experimental study on flexural behavior of splicing concrete-filled GFRP tubular composite members connected with steel bars vol.18, pp.5, 2015, https://doi.org/10.12989/scs.2015.18.5.1129
  2. Nonlinear vibrations of CFRP cables excited by periodic motions of supports in cable-stayed bridges 2018, https://doi.org/10.1177/1077546317750503
  3. Flexural behavior of beams reinforced with either steel bars, molded or pultruded GFRP grating vol.34, pp.1, 2012, https://doi.org/10.12989/scs.2020.34.1.017