Steel and Composite Structures

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Effects of tensioning forces on the structural behavior of cable-stayed bridges

  • Lam, Pauline Lin Li (Department of Architecture & Architectural Engineering, Seoul National University) ;
  • Kang, Thomas H.K. (Department of Architecture & Architectural Engineering, Seoul National University)
  • Received : 2021.10.28
  • Accepted : 2022.05.21
  • Published : 2022.05.25
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Abstract

Optimization in distribution of stay cable forces is one of the most difficult aspects in the design of cable-stayed bridges. This article attempts to examine tension force influence on structural behavior of cable-stayed bridges. For the examination, finite element modeling using nonlinear static and nonlinear modal analyses was completed and compared to structural experimental results. Variables analyzed in this parametric study were: 1) Number of stay cables; 2) Tension of the stay cables, and 3) Stay cable pattern - harp and semi-fan patterns. Though the findings from the analysis are limited to the tested models, the study gives insight on the structural behavior of actual cable stayed bridges.

Keywords

Acknowledgement

The research described in this paper was financially supported by the Natural Research Foundation of Korea (2021R1D1A5A1032433). Partial support from the Institute of Construction and Environmental Engineering at Seoul National University is also appreciated.

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