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Structural Performance of a Segmental Precast Arch System with Outrigger by Sectional Geometry of Structural Member

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

Abstract

This study investigated the structural behavior of an arch system composed of segmental precast concrete panels and steel outrigger ribs, with respect to the cross-sectional geometries of the structural members. Thus, a three-dimensional finite element (3D FE) analysis of the proposed arch system was conducted at each construction step, and the cross-sectional geometries of the structural members were varied. From the results of the FE analysis regarding the structural-member cross-sectional configurations and geometries, the changes in stress and deformation were identified with respect to the changes in the thickness of the precast panels, thickness of the outrigger ribs, and height of the V-strip. Stresses and displacements of structural members in the proposed arch system were affected up to 48% by the height of the V-strip and the thickness of the outrigger ribs. The thickness of the precast panel affected relatively small on its structural behaviors. Therefore, the height of the V-strip and thickness of the outrigger ribs should be considered as the major design parameters for the design of the proposed arch system.

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Acknowledgements

This work is supported by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (grant 20CTAP-C151892-02).

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Correspondence to Jin-Hee Ahn.

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Jeon, S.H., Lee, H.J., Moon, J. et al. Structural Performance of a Segmental Precast Arch System with Outrigger by Sectional Geometry of Structural Member. KSCE J Civ Eng 24, 3356–3375 (2020). https://doi.org/10.1007/s12205-020-2030-x

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  • DOI: https://doi.org/10.1007/s12205-020-2030-x

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