KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
권호 표지

Estimating Tensile Force of Hangers in Suspension Bridges Using Frequency Based SI Technique: I. Theory

진동기반의 SI 기법을 이용한 현수교 행어의 장력 추정: I. 이론

Park, Tee-Hyo;Moon, Seok-Yong;Joo, Hwan-Joong;Kim, Byeong-Hwa
박대효;문석용;주환중;김병화

  • Published : 2007.03.31

⟨ Previous Next ⟩

Abstract

Hanger cables in suspension bridges have a particular form - two parallel hanger cables are tied by a horizontal clamp. Hence, it is difficult to estimate the accurate tension of a hanger using the existing frequency-based method based on the simple mathematical model of a single cable. To resolve this problem, in this paper, a frequency-based system identification thechnique is adopted. The complex behavior of the hanger cables has been identified by the aid of a three dimensional finite element analysis. In conjunction with the system identification algorithm and the finite element analysis, tension and other flexural rigidities of the hanger cable has been identified by a proposed approach. To verify the proposed technique, a set of various numerical verifications have been conducted. Finally, the results from the proposed approach have been compared with those from the exising technique.

Keywords

References

  1. 박대효, 김병화(2005) 시스템 인식기법을 이용한 케이블의 장력추정: I. 이론. 대한토목학회논문집, 대한토목학회, 제25권 제4A호, pp. 661-668
  2. 김병화, 박대효(2005) 시스템 인식기법을 이용한 케이블의 장력 추정: II. 실험 및 적용. 대한토목학회논문집, 대한토목학회, 제25권 제4A호, pp. 669-675
  3. 배인환, 하강희(2002) 건전도모니터링시스템을 이용한 3차원 자정식 현수교의 구조거동. 대한토목학회 2002년 학술발표회-한국건설 비전 2025-, pp. 513-516
  4. 안상섭, 이일근, 배인환, 최호근(2003) 행어 케이블 장력 산정을 위한 정적 방법. 2003 대한토목학회 정기학술대회, pp.1418-1423
  5. 윤자걸, 손진, 장승필(1999) 교량 케이블의 장력 측정에 관한 연구. 대한토목학회 1999년 학술발표회 논문집(I), pp. 117-120
  6. Bati, S.B. and Tonietti, U. (2001) Experimental Methods for Estimating In Situ Tensile Force in Tie-Rods. Journal of Engineering Mechanics, Vol. 127, No. 12, pp. 1275-1283 https://doi.org/10.1061/(ASCE)0733-9399(2001)127:12(1275)
  7. Irvine, H.M. (1981) Cable Structures. The MIT Press, Cambridge, Mass
  8. Russell, J.C. and Lardner, T.J. (1998) Experimental determination of frequencies and tension for elastic cables. Journal of Engineering Mechanics, ASCE, Vol. 124, No. 10, pp. 1067-1072 https://doi.org/10.1061/(ASCE)0733-9399(1998)124:10(1067)
  9. Triantafyllou, M.S. (1984) The dynamics of taut inclined cables. The Quarterly Journal of Mechanics and Applied Mathematics, Vol. 37, No.3, pp. 421-440 https://doi.org/10.1093/qjmam/37.3.421
  10. Yen, W.H., Megrabi, and A.B., Tabatabai, H. (1997) Evaluation of stay cable tension using a non-destructive vibration technique, Proc. 15th Structures Congress, ASCE, 1, pp. 503-507
  11. Zui, H., Shinke, T., and Namita, Y. (1996) Practical fonnu1as for estimation of cable tension by vibration method. Journal of Structural Engineering, Vol. 122, No. 6, pp. 651-656 https://doi.org/10.1061/(ASCE)0733-9445(1996)122:6(651)