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Stayed Buckle Cable Recycling for Seismic Upgrading of Super-long-span Concrete Filled Steel Tube Arch Bridges

  • Structural Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

A seismic upgrading approach for super-large-span upper-deck concrete-filled steel tube arch bridges using the stayed buckle cables (SBCs, which are temporary facilities for construction of long-span arch bridges) was proposed. The arrangement of SBCs most beneficial to the seismic resistance of arch bridges was determined. The results show that the reasonable arrangement of SBCs can achieve significant seismic performance improvement, reduce the stress demand on the diagonal of the arch rib, and improve the capacity-demand ratios of the weak sections of the arch rib. In upgrading model, the max displacement response of the structure is decreased by 41.3%, the max tensile stress on the diagonal is decreased by 30.1%, the max compression stress demand on the diagonal decreased by 18.0%, the CDRs of sections of the arch ribs are greatly improved.

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Acknowledgments

This study was supported by the Guangxi Key R&D Plan (Grant no.Guike AB22036007), the Natural Science Foundation of China (Grant No. 52078092 and Grant no. 52008064), the Chongqing Natural Science Foundation (Grant no.CSTB2022TIAD-KPX0205), the Science and Technology Research Program of Chongqing Municipal Education Commission of China (Grant no. KJQN202000737) and the Postdoctoral Research Program of Chongqing (Grant no. 2022CQBSHTB3082).

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Correspondence to Dan Ye.

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Ye, D., Zhou, J., Zhang, R. et al. Stayed Buckle Cable Recycling for Seismic Upgrading of Super-long-span Concrete Filled Steel Tube Arch Bridges. KSCE J Civ Eng 28, 777–786 (2024). https://doi.org/10.1007/s12205-023-0427-z

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  • DOI: https://doi.org/10.1007/s12205-023-0427-z

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