Structural Engineering and Mechanics

  • 제21권4호
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  • Pages.375-392
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  • 2005
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Load deformation characteristics of shallow suspension footbridge with reverse profiled pre-tensioned cables

  • Huang, Ming-Hui (School of Urban Development, Queensland University of Technology) ;
  • Thambiratnam, David P. (School of Urban Development, Queensland University of Technology) ;
  • Perera, Nimal J. (Bird & Marshall Ltd.)
  • 투고 : 2004.09.09
  • 심사 : 2005.08.11
  • 발행 : 2005.11.10
⟨ 이전 논문 다음 논문 ⟩

초록

Cable supported structures offer an elegant and economical solution for bridging over long spans with resultant low material content and ease of construction. In this paper, a model of shallow cable supported footbridge with reverse profiled pre-tensioned cables is treated and its load deformation characteristics under different quasi-static loads are investigated. Effects of important parameters such as cable sag and pre-tension are also studied. Numerical results performed on a 3D model show that structural stiffness of this bridge (model) depends not only on the cable sag and cross sectional areas of the cables, but also on the pre-tension in the reverse profiled cables. The tension in the top supporting cables can be adjusted to a high level by the pre-tension in the reverse profiled bottom cables, with the total horizontal force in the bridge structure remaining reasonably constant. It is also evident that pre-tensioned horizontally profiled cables can greatly increase the lateral horizontal stiffness and suppress the lateral horizontal deflection induced by eccentric vertical loads.

키워드

참고문헌

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피인용 문헌

  1. Dynamic performance of slender suspension footbridges under eccentric walking dynamic loads vol.303, pp.1-2, 2007, https://doi.org/10.1016/j.jsv.2007.01.016
  2. Multi-objective optimization of polyester-rope and steel-rope suspended footbridges vol.99, 2015, https://doi.org/10.1016/j.engstruct.2015.05.024
  3. A simplified structural mechanics model for cable-truss footbridges and its implications for preliminary design vol.68, 2014, https://doi.org/10.1016/j.engstruct.2014.02.015
  4. A novel analytical method for the analysis of a bi-concave cable-truss footbridge vol.123, 2016, https://doi.org/10.1016/j.engstruct.2016.05.025