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Article

In-Plane Failure Mechanism and Strength Design of Plate-Tube-Connected Circular Steel Arches

by
Xigui Yuan
1,
Bo Yuan
2,* and
Minjie Shi
2
1
School of Urban Construction, Chengdu Polytechnic, Chengdu 610218, China
2
Research Center of Space Structures, Guizhou University, Guiyang 550025, China
*
Author to whom correspondence should be addressed.
Buildings 2023, 13(4), 956; https://doi.org/10.3390/buildings13040956
Submission received: 24 February 2023 / Revised: 21 March 2023 / Accepted: 28 March 2023 / Published: 3 April 2023
(This article belongs to the Special Issue Advances in Steel Structures: Testing, Modelling and Design)
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Abstract

The in-plane elastoplastic failure mechanism of plate-tube-connected steel circular arches with inverted triangular cross sections is investigated in this study by using theoretical derivation and numerical simulation. First, the in-plane elastic buckling load formula of the arch under full-span uniform radial load (FSURL) is presented. Then, the limited conditions of avoiding the connecting plate and chord local failure before global elastic instability are derived. Lastly, the elastic–plastic failure mechanisms of arches are studied under FSURL, full-span uniform vertical load (FSUVL), and half-span uniform vertical load (HSUVL). It is found that the arch will experience global failure, chord local failure, combined connecting plate and chord failure, and connecting plate local failure under FSUVL and HSUVL. The failure mode is mainly related to the stiffness of the connecting plate. The corresponding design formulas are proposed for the global failure of arches and local failure of the chord. The proposed formulas and FE results are in good agreement.
Keywords: plate-tube-connected steel arch; circular arch; global failure; shear failure; in-plane strength design plate-tube-connected steel arch; circular arch; global failure; shear failure; in-plane strength design

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MDPI and ACS Style

Yuan, X.; Yuan, B.; Shi, M. In-Plane Failure Mechanism and Strength Design of Plate-Tube-Connected Circular Steel Arches. Buildings 2023, 13, 956. https://doi.org/10.3390/buildings13040956

AMA Style

Yuan X, Yuan B, Shi M. In-Plane Failure Mechanism and Strength Design of Plate-Tube-Connected Circular Steel Arches. Buildings. 2023; 13(4):956. https://doi.org/10.3390/buildings13040956

Chicago/Turabian Style

Yuan, Xigui, Bo Yuan, and Minjie Shi. 2023. "In-Plane Failure Mechanism and Strength Design of Plate-Tube-Connected Circular Steel Arches" Buildings 13, no. 4: 956. https://doi.org/10.3390/buildings13040956

APA Style

Yuan, X., Yuan, B., & Shi, M. (2023). In-Plane Failure Mechanism and Strength Design of Plate-Tube-Connected Circular Steel Arches. Buildings, 13(4), 956. https://doi.org/10.3390/buildings13040956

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